ISUZU TRUCKS OBD CODES

SENSORS TECHNICAL INFORMATION

• AAT–Ambient Air Temperature

• AS–Accelerator Sensor

• BS–Boost Sensor

• CPS–Crankshaft Position Sensor

• ECT–Engine Coolant Temperature

• ES–Engine Speed

• FTS–Fuel Temperature Sensor

• PSP–Pre-Stroke

• RS–Rack Sensor

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ISUZU FRR, FSR, FTR & FVR OBD CODES

 

• Chart 1 — System Diagnostic Procedure
• Chart 2 — System Diagnostic Procedure
• Chart 3 — System Diagnostic Procedure
• Chart 4 — System Diagnostic Procedure
• Chart 5 — System Diagnostic Procedure
• Chart 6 — System Diagnostic Procedure
• Chart 7/Code 13 — Rack Sensor Circuit Failure
• Chart 8 — System Diagnostic Procedure
• Chart 9/Code 15 — Engine Speed Sensor Circuit Failure
• Chart 10/Code 23 — Engine Coolant Temperature Sensor Circuit Failure
• Chart 11/Code 29 — Pre-Stroke Actuator Failure
• Chart 12/Code 291 — Pre-Stroke Position Sensor Circuit Failure
• Chart 13/Code 292 — Pre-Stroke Learning Failure
• Chart 14/Code 293 — Power Cut Relay Circuit Failure
• Chart 15 — System Diagnostic Procedure
• Chart 16/Code 414 — Boost Cut Magnetic Valve Circuit Failure
• Chart 17 — System Diagnostic Procedure
• Chart 18/Code 423 — Pre-Stroke Power Supply Circuit Failure
• Chart 19 — System Diagnostic Procedure
• Chart 20 — System Diagnostic Procedure
• Chart 21/Code 413 — Variable Swirl System Valve
• Chart 22/Code 71 — Barometric Pressure Sensor
• Chart 1 — Automatic Transmission Relay Output Error
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• Chart 2 — Exhaust Brake Relay Error
• Chart 3 — MFAM Signal Error
• Chart 4 — Power Supply System Inspection
• Chart 5 — Tachometer Output Error
• Chart 6 — Pressure Control Valve (PCV) Relay Error
• Chart 7/Code 13 — Engine Hunting
• Chart 8 — Startup Failure, No Initial Combustion
• Chart 9/Code 15 — Startup Failure, Initial Combustion No Start
• Chart 10/Code 23 — Startup Failure, Starts But Won’t Rev
• Chart 11/Code 29 — Excessive White Or Blue Smoke
• Chart 12/Code 291 — Excessive Black Smoke
• Chart 13/Code 292 — Lack Of Power
• Chart 14/Code 293 — Surging, Hesitation
• Chart 15 — Engine Stalls
• Chart 16/Code 414 — Engine Does Not Stop
• Chart 17 — Idle Control Error
• Chart 18/Code 423 — High Idle Engine Speed
• Chart 19 — Pump Position (G) Sensor Error
• Chart 20 — Crankshaft Position (NE) Sensor
• Chart 21/Code 413 — Main Relay System Error
• Chart 22/Code 71 — Atmospheric Temperature Sensor Error
• Code P23 — Water Temperature (THW) Sensor Error
• Code P24 — Accelerator Sensor Error 1 & 2
• Code P32 — Boost Pressure Sensor High Boost Pressure Abnormal
• Code P34 — Adjusted Data Record, No History Recorded
• Code P35 — Analog Digital Conversion, CPU Monitoring IC & Charging Circuit Errors
• Code P42 — High Boost Pressure Abnormal
• Code P65 — Low Boost Pressure Abnormal
• Code P71 — Atmospheric Pressure Sensor Error
• Code P115 — Common Rail Pressure Sensor Output Fixed
• Code P118 — Common Rail Pressure Abnormal, 1st & 2nd Stage
• Code P151 — Common Rail Pressure Abnormal, Pump Over Pressure
• Code P158 — Two Way Valve (TWV) Driving System Error
• Code P159 — Two Way Valve (TWV) Driving System Error
• Code P211 — Fuel Temperature (THF) Sensor Error
• Code P217 — PCV1 or PCV2 Power Shortage
• Code P218 — PCV1 or PCV2 Power Shortage
• Code P226 — Injection Pump Pressure Supply Or Pressure Limiter Activation
• Code P227 — Injection Pump Pressure Supply
• Code P245 — Abnormal Common Rail Pressure, PC Sensor System
• Code P247 — Pressure Control Valve (PCV1 Or PCV2) Disconnected Or Shorted To Ground
• Code P248 — Pressure Control Valve (PCV1 Or PCV2) Disconnected Or Shorted To Ground
• Code P261 — Cylinder Flow Dumper Activated
• Code P262 — Cylinder Flow Dumper Activated
• Code P263 — Cylinder Flow Dumper Activated
• Code P264 — Cylinder Flow Dumper Activated
• Code P265 — Cylinder Flow Dumper Activated
• Code P266 — Cylinder Flow Dumper Activated
• Code P271 — Two Way Valve (TWV) Side Disconnected
• Code P272 — Two Way Valve (TWV) Side Disconnected
• Code P273 — Two Way Valve (TWV) Side Disconnected
• Code P274 — Two Way Valve (TWV) Side Disconnected
• Code P275 — Two Way Valve (TWV) Side Disconnected
• Code P276 — Two Way Valve (TWV) Side Disconnected
• Code P421 — Pressure Control Valve (PCV) Relay System Error
• Code P543 — Overrun Judgement
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Isuzu 6HK1-TCOBD CODES

• P0014 No CAM Sensor Pulse Input
• P0015 No CKP Signal Detected
• P0016 Crankshaft Position Camshaft Position Correlation
• P0022 Ambient Air Temperature Sensor Voltage
• P0023 ECT Sensor Voltage
• P0024 Accelerator Pedal Position Sensor Voltage
• P0027 Exhaust Throttle Control Valve Performance
• P0032 Boost Pressure Sensor
• P0034 EEPROM Data Not Written
• P0035 Output Driver & Quad Driver Modules
• P003A Turbocharger Boost Control Position Not Learned
• P0042 Boost Pressure Signal High
• P0045 Turbocharger Boost Control Solenoid Control Circuit
• P0065 Boost Pressure Signal Low
• P0071 BARO Sensor Voltage
• P0079 Exhaust Throttle Control Valve Circuit Low/High Voltage
• P0080 Exhaust Throttle Control Valve Circuit Low/High Voltage
• P0087 Common Rail Pressure High
• P0087 Fuel Rail Pressure Too Low
• P0087 Fuel Rail Pressure Too Low/High
• P0088 Common Rail Pressure High
• P0088 Fuel Rail Pressure Too High
• P0088 Fuel Rail Pressure Too Low/High
• P0089 Fuel Pressure Regulator Performance
• P0091 Pressure Control Valve Voltage Low
• P0091 Fuel Pressure Regulator Solenoid 1 Control Circuit Low Voltage
• P0091 Fuel Pressure Regulator Solenoid Control Circuit Low/High Voltage
• P0092 Pressure Control Valve Voltage High
• P0092 Fuel Pressure Regulator Solenoid 1 Control Circuit High Voltage
• P0092 Fuel Pressure Regulator Solenoid Control Circuit Low/High Voltage
• P0093 Fuel System Large Leak Detected
• P0097 Intake Air Temperature Sensor 2 Circuit Low/High Voltage
• P0098 Intake Air Temperature Sensor 2 Circuit Low/High Voltage
• P0101 Mass Air Flow Sensor Performance
• P0102 Mass Air Flow Sensor Circuit Low/High
• P0103 Mass Air Flow Sensor Circuit Low/High
• P0107 BARO Sensor Voltage Low
• P0107 Barometric Pressure Sensor Circuit Low
• P0108 BARO Sensor Voltage High
• P0108 Barometric Pressure Sensor Circuit High Voltage
• P0112 MAT Sensor Temperature High
• P0112 Intake Air Temperature Sensor Circuit Low Voltage
• P0112 Intake Air Temperature Sensor Circuit Low/High Voltage
• P0113 MAT Sensor Temperature Low
• P0113 Intake Air Temperature Sensor Circuit High Voltage
• P0113 Intake Air Temperature Sensor Circuit Low/High Voltage
• P0115 Common Rail Pressure Sensor Variation
• P0116 Engine Coolant Temperature Sensor Performance
• P0117 ECT Sensor Temperature High
• P0117 Engine Coolant Temperature Sensor Circuit Low Voltage
• P0117 Engine Coolant Temperature Sensor Circuit Low/High Voltage
• P0118 Common Rail Pressure Sensor High
• P0118 ECT Sensor Temperature Low
• P0118 Engine Coolant Temperature Sensor Circuit High Voltage
• P0118 Engine Coolant Temperature Sensor Circuit Low/High Voltage
• P0126 Engine Coolant Temperature Insufficient For Stable Operation
• P0128 Engine Coolant Temperature Below Thermostat Regulating Temperature
• P0151 Common Rail Pressure Sensor Low
• P0158 Two-Way Valve Circuit
• P0159 Two-Way Valve Circuit
• P0181 Fuel Temperature Sensor Performance
• P0182 Fuel Temperature Sensor Temperature High
• P0182 Fuel Temperature Sensor Circuit Low Voltage
• P0182 Fuel Temperature Sensor Circuit Low/High Voltage
• P0183 Fuel Temperature Sensor Temperature Low
• P0183 Fuel Temperature Sensor Circuit High Voltage
• P0183 Fuel Temperature Sensor Circuit Low/High Voltage
• P0190 Common Rail Pressure Variation
• P0191 Fuel Rail Pressure Sensor Performance
• P0192 Fuel Rail Pressure Signal Circuit
• P0192 Fuel Pressure Sensor Circuit Low Voltage
• P0192 Fuel Rail Pressure Sensor Circuit Low/High Voltage
• P0193 Fuel Rail Pressure Signal Circuit High
• P0193 Fuel Rail Pressure Sensor Circuit High Voltage
• P0193 Fuel Rail Pressure Sensor Circuit Low/High Voltage
• P0201 Two-Way Valve Solenoid Circuit Open
• P0201 Injector Solenoid Circuit Open
• P0201 Cylinder No. 1 Fuel Injector
• P0202 Two-Way Valve Solenoid Circuit Open
• P0202 Injector Solenoid Circuit Open
• P0202 Cylinder No. 2 Fuel Injector
• P0203 Two-Way Valve Solenoid Circuit Open
• P0203 Injector Solenoid Circuit Open
• P0203 Cylinder No. 3 Fuel Injector
• P0204 Two-Way Valve Solenoid Circuit Open
• P0204 Injector Solenoid Circuit Open
• P0204 Cylinder No. 4 Fuel Injector
• P0205 Two-Way Valve Solenoid Circuit Open
• P0205 Injector Solenoid Circuit Open
• P0205 Cylinder No. 5 Fuel Injector
• P0206 Two-Way Valve Solenoid Circuit Open
• P0206 Injector Solenoid Circuit Open
• P0206 Cylinder No. 6 Fuel Injector
• P0211 Fuel Temperature Sensor Circuit
• P0217 Pressure Control Valve Driving Voltage High
• P0218 Pressure Control Valve Driving Voltage High
• P0219 Engine Overrun
• P0219 Engine Overspeed
• P0219 Engine Overspeed
• P0226 Idle Speed Not Controlled
• P0227 Idle Speed Control Target Speed Not Controlled
• P0234 High Boost Pressure Signal
• P0234 Turbocharger Engine Overboost
• P0234 Turbocharger Engine Overboost
• P0237 Boost Pressure Low
• P0237 Turbocharger Boost Sensor Circuit Low Voltage
• P0237 Turbocharger Boost Sensor Circuit Low/High Voltage
• P0238 Boost Pressure High
• P0238 Turbocharger Boost Sensor Circuit High Voltage
• P0238 Turbocharger Boost Sensor Circuit Low/High Voltage
• P0245 Common Rail Pressure Sensor Voltage
• P0247 Pressure Control Valve Low Driving Voltage
• P0248 Pressure Control Valve Low Driving Voltage
• P0261 Flow Damper/Injector No. 1
• P0261 Injectors 1-6 Circuit Short Low Voltage
• P0262 Flow Damper/Injector No. 2
• P0263 Flow Damper/Injector No. 3
• P0263 Uneven Injection
• P0264 Flow Damper/Injector No. 4
• P0264 Injectors 1-6 Circuit Short Low Voltage
• P0265 Flow Damper/Injector No. 5
• P0266 Flow Damper/Injector No. 6
• P0266 Uneven Injection
• P0267 Injectors 1-6 Circuit Short Low Voltage
• P0269 Uneven Injection
• P0270 Injectors 1-6 Circuit Short Low Voltage
• P0271 Two-Way Valve Disconnected/Cylinder No. 1
• P0272 Two-Way Valve Disconnected/Cylinder No. 2
• P0272 Uneven Injection
• P0273 Two-Way Valve Disconnected/Cylinder No. 3
• P0273 Injectors 1-6 Circuit Short Low Voltage
• P0274 Two-Way Valve Disconnected/Cylinder No. 4
• P0275 Two-Way Valve Disconnected/Cylinder No. 5
• P0275 Uneven Injection
• P0276 Two-Way Valve Disconnected/Cylinder No. 6
• P0276 Injectors 1-6 Circuit Short Low Voltage
• P0278 Uneven Injection
• P0299 Low Boost Pressure
• P0299 Turbocharger Engine Under boost
• P02E2 Intake Air Flow Valve Control Circuit Low/High Voltage
• P02E3 Intake Air Flow Valve Control Circuit Low/High Voltage
• P02E7 Intake Air Flow Valve Position Sensor Performance
• P02E8 Intake Air Flow Valve Position Sensor Circuit Low/High Voltage
• P02E9 Intake Air Flow Valve Position Sensor Circuit Low/High Voltage
• P0335 No CKP Signal
• P0335 No Crankshaft Position Signal
• P0335 Crankshaft Position Sensor Circuit/Performance
• P0336 Crankshaft Position Sensor Circuit/Performance
• P0340 Camshaft Position Sensor Circuit/Performance
• P0341 Camshaft Position Sensor Circuit/Performance
• P0380 Glow Plug Circuit
• P0382 Glow Plug Feedback Circuit Fault
• P0385 No Auxiliary Engine RPM Sensor Signal
• P0385 No Camshaft Position Signal
• P0401 Exhaust Gas Recirculation Flow Insufficient
• P0402 Exhaust Gas Recirculation Flow Excessive
• P0403 Exhaust Gas Recirculation Solenoid Control Circuit
• P0404 Exhaust Gas Recirculation Open Position Performance
• P0409 Exhaust Gas Recirculation Position Sensor Performance
• P040B Exhaust Gas Recirculation Temperature Sensor 1 Performance
• P040C Exhaust Gas Recirculation Temperature Sensor 1 Circuit Low/High Voltage
• P040D Exhaust Gas Recirculation Temperature Sensor 1 Circuit Low/High Voltage
• P0416 Main Relay Remains Off
• P0417 ECM Detects No Voltage On STA Input
• P041B Exhaust Gas Recirculation Temperature Sensor 2 Performance
• P041C Exhaust Gas Recirculation Temperature Sensor 2 Circuit Low Voltage
• P041D Exhaust Gas Recirculation Temperature Sensor 2 Circuit Low Voltage
• P0421 Pressure Control Valve Driving Voltage Abnormal
• P042E Exhaust Gas Recirculation Closed Position Performance
• P0506 Idle Speed Low/High
• P0507 Idle Speed Low/High
• P0543 Fuel Injection & Pressure Stop
• P0545 Exhaust Gas Temperature Sensor 1 Circuit Low/High Voltage
• P0546 Exhaust Gas Temperature Sensor 1 Circuit Low/High Voltage
• P0601 Internal Microprocessor Integrity
• P0601 Internal Microprocessor Integrity
• P0601 Control Module Performance
• P0602 Internal Microprocessor Integrity
• P0602 Internal Microprocessor Integrity
• P0602 Control Module Performance
• P0603 Internal Microprocessor Integrity
• P0603 Internal Microprocessor Integrity
• P0603 Control Module Performance
• P0604 Internal Microprocessor Integrity
• P0604 Internal Microprocessor Integrity
• P0604 Control Module Performance
• P0605 Internal Microprocessor Integrity
• P0605 Internal Microprocessor Integrity
• P0605 Control Module Performance
• P0606 Internal Microprocessor Integrity
• P0606 Internal Microprocessor Integrity
• P0606 Control Module Performance
• P0607 Internal Microprocessor Integrity
• P0607 Internal Microprocessor Integrity
• P062F Control Module Performance
• P0641 APP Sensor 1 Voltage
• P0641 5 Volt Reference Circuit 1 Fault
• P0642 5-Volt Reference 1 Circuit Low/High Voltage
• P0643 5-Volt Reference 1 Circuit Low/High Voltage
• P064C Glow Plug Module Control Performance
• P0650 Malfunction Indicator Lamp Control Circuit
• P0651 APP Sensor 2 Voltage
• P0651 5 Volt Reference Circuit 2 Fault
• P0652 5-Volt Reference 2 Circuit Low Voltage
• P0653 5-Volt Reference 2 Circuit Low Voltage
• P0687 Engine Controls Ignition Relay Control Circuit High Voltage
• P0698 5-Volt Reference 3 Circuit Low/High Voltage
• P0699 5-Volt Reference 3 Circuit Low/High Voltage
• P1085 Fuel Supply Pump Protection/Exchange, Pressure Regulator 2 Performance
• P1087 Pressure Control Valve Opening Timing
• P1087 Fuel Rail Pressure Trim Too Low
• P1088 Common Rail Pressure High
• P1088 Fuel Rail Pressure Trim Too High
• P1093 Fuel Rail Pressure Low During Power Enrichment
• P1125 More Than One APP Sensor
• P1125 Accelerator Pedal Position System
• P1125 Accelerator Pedal Position System
• P1259 Fuel Supply Pump Protection/Exchange, Pressure Regulator 2 Performance
• P1261 CPU Internal Error
• P1263 TWV Voltage Supply Circuit Shorted To Ground
• P1263 Injector Positive Voltage Control Circuit Group 1 Low Voltage
• P1264 TWV Voltage Supply Circuit Shorted To Battery Voltage
• P1264 Injector Positive Voltage Control Circuit Group 1 High Voltage
• P1265 TWV Voltage Supply Circuit Shorted To Ground
• P1265 Injector Positive Voltage Control Circuit Group 2 Low Voltage
• P1266 TWV Voltage Supply Circuit Short To Battery Voltage
• P1266 Injector Positive Voltage Control Circuit Group 2 High Voltage
• P1270 ECM Cannot Process APP Analog Data
• P1271 APP Sensors 1 & 2 Out Of Range
• P1271 Accelerator Pedal Position Sensor 1-2 Correlation
• P1272 APP Sensors 2 & 3 Out Of Range
• P1272 Accelerator Pedal Position Sensor 2-3 Correlation
• P1273 APP Sensors 1 & 3 Out Of Range
• P1273 Accelerator Pedal Position Sensor 1-3 Correlation
• P1277 APP Sensor 1 Voltage Low
• P1277 Accelerator Pedal Position Sensor 1 Circuit Low Voltage
• P1278 APP Sensor 1 Voltage High
• P1278 Acceleration Pedal Position Sensor 1 Circuit High Voltage
• P1282 APP Sensor 2 Voltage Low
• P1282 Accelerator Pedal Position Sensor 2 Circuit Low Voltage
• P1283 APP Sensor 2 Voltage High
• P1283 Accelerator Pedal Position Sensor 2 Circuit High Voltage
• P1287 APP Sensor 3 Voltage Low
• P1287 APP Sensor 3 Voltage High
• P1287 Acceleration Pedal Position Sensor 3 Circuit Low Voltage
• P1288 Accelerator Pedal Position Sensor 3 Circuit Low Voltage
• P1291 Pressure Control Valve Voltage Low
• P1292 Pressure Control Valve Voltage High
• P1293 Injector Circuit Low to High Current Transition Time Bank 1
• P1298 Pressure Control Valve Voltage Abnormal
• P1471 DPF Regeneration Insufficient
• P1600 Internal Microprocessor Integrity
• P1600 Internal Microprocessor Integrity
• P160B Injector Flow Rate Calibration Incorrect
• P1621 Internal Microprocessor Integrity
• P1621 Internal Microprocessor Integrity
• P1627 Internal Microprocessor Integrity
• P1627 Internal Microprocessor Integrity
• P1646 APP Sensor 3 Circuit Voltage High/Low
• P1646 5 Volt Reference 3 Circuit
• P1680 Internal Microprocessor Integrity
• P1680 Internal Microprocessor Integrity
• P1681 Internal Microprocessor Integrity
• P1681 Internal Microprocessor Integrity
• P1683 Internal Microprocessor Integrity
• P1683 Internal Microprocessor Integrity
• P2002 Diesel Particulate Filter Low Efficiency
• P2003 Mass Air Flow Sensor Circuit High Voltage
• P2004 Mass Air Flow Sensor Circuit Low Voltage
• P2005 Power Take Off Sensor Circuit High Voltage
• P2007 Turbocharger Vane Position Sensor Circuit High Voltage
• P2008 Intake Manifold Runner Control Solenoid Circuit
• P2011 Injector Positive Voltage Control Circuit Group 3
• P2012 Injector Positive Voltage Control Circuit Group 4
• P2032 Exhaust Gas Temperature Sensor 2 Circuit Low/High Voltage
• P2033 Exhaust Gas Temperature Sensor 2 Circuit Low/High Voltage
• P2080 Exhaust Gas Temperature Sensor 1 Performance
• P2084 Exhaust Gas Temperature Sensor 2 Performance
• P20E2 Exhaust Temperature Sensor 1-2 Correlation
• P2122 APP Sensor
• P2123 APP Sensor
• P2127 APP Sensor
• P2128 APP Sensor
• P2132 APP Sensor
• P2133 APP Sensor
• P2138 APP Sensor
• P2139 APP Sensor
• P2140 APP Sensor
• P2146 Injector Positive Voltage Control Circuit
• P2147 Injector Positive Voltage Control Circuit
• P2148 Injector Positive Voltage Control Circuit
• P2149 Injector Positive Voltage Control Circuit
• P2150 Injector Positive Voltage Control Circuit
• P2151 Injector Positive Voltage Control Circuit
• P2199 Intake Air Temperature Sensor 1 – 2 Correlation
• P2227 Barometric Pressure Sensor Performance
• P2228 Barometric Pressure Sensor Circuit Low/High Voltage
• P2229 Barometric Pressure Sensor Circuit Low/High Voltage
• P244B Diesel Particulate Filter Differential Pressure Too High
• P244C Catalyst Temperature Too Low During Regeneration
• P2453 Diesel Particulate Filter Differential Pressure Sensor Performance
• P2454 Diesel Particulate Filter Differential Pressure Sensor Circuit Low Voltage
• P2455 Diesel Particulate Filter Differential Pressure Sensor Circuit Low Voltage
• P2457 Exhaust Gas Recirculation Cooling System Performance
• P2463 Diesel Particulate Filter Soot Accumulation
• P254D Power Take-off Engine Speed Selector Sensor Circuit High Voltage
• P2563 Turbocharger Boost Control Position Sensor Performance
• P2564 Turbocharger Boost Control Position Sensor Circuit Low Voltage
• P2564 Turbocharger Boost Control Position Sensor Circuit Low/High Voltage
• P2565 Turbocharger Boost Control Position Sensor Circuit High Voltage
• P2565 Turbocharger Boost Control Position Sensor Circuit Low/High Voltage
• P2610 Internal Microprocessor Integrity
• P2610 Internal Microprocessor Integrity
• P268A Fuel Injector Calibration Data Not Programmed
• P2900 Turbocharger Vane Position Sensor Performance
• P2901 Exhaust Gas Recirculation Position Sensor Performance
• P2902 Exhaust Gas Recirculation Open Position Performance
• P2903 Exhaust Gas Recirculation Flow Insufficient
• P2920 Engine Controls Ignition Relay Feedback Circuit
• P2921 Fuel Rail Pressure Too High
• P2922 Fuel Rail Pressure Too High
• P2923 Fuel Rail Pressure Low During Power Enrichment
• U2104 EBCM & TCM CAN Message Not Received By ECM
• U2106 TCM CAN Message No Received By ECM
• U2108 EBCM CAN Message Not Received By ECM
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Isuzu 4HE1-TC OBD CODES

• P13 — ECT Sensor High Voltage
• P14 — ECT Sensor Low Voltage
• P21 — Rack Sensor Low Voltage
• P22 — Rack Sensor High Voltage
• P23 — Magnetic Switch Control Low Voltage
• P24 — Magnetic Switch Control High Voltage
• P26 — QWS Relay Control High Voltage
• P31 — EGR EVRV Solenoid Low Voltage
• P32 — EGR EVRV Solenoid High Voltage
• P33 — VSS Control Low Voltage
• P34 — VSS Control High Voltage
• P35 — EGR Quick Cut VSV Control Low Voltage
• P36 — EGR Quick Cut VSV Control High Voltage
• P41 — QOS Relay Control Low Voltage
• P42 — QOS Relay Control High Voltage
• P43 — Aneroid Compensator VSV Control Low Voltage
• P44 — Aneroid Compensator VSV Control High Voltage
• P45 — Engine Speed Sensor Low Voltage
• P52 — EEPROM Error
• P61 — Barometric Sensor Error
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Isuzu NPR/W Series OBD Codes

• — OBD System Check
• — A/C Clutch Control Diagnosis
• — Restricted Exhaust System Check
• A-1 MIL
• A-2 No Serial Data
• A-3 Engine Cranks But Will Not Run
• A-4 Injector Circuit Diagnosis
• A-5 Fuel Pump Relay Circuit Diagnosis
• A-6 Fuel System Diagnosis
• A-7 Injector Balance Test (Central SFI)
• Injector Balance Test (SFI)
• A-8 Injector Coil Test
• P0101 Mass Air Flow Sensor
• P0102 Mass Air Flow Sensor Low Input
• P0103 Mass Air Flow Sensor High Input
• P0106 Manifold Absolute Pressure Sensor
• P0107 Manifold Absolute Pressure Sensor Low Input
• P0108 Manifold Absolute Pressure Sensor High Input
• P0112 Intake Air Temperature Sensor Low Input
• P0113 Intake Air Temperature Sensor High Input
• P0117 Engine Coolant Temperature Sensor Low Input
• P0118 Engine Coolant Temperature Sensor High Input
• P0121 Throttle Position Sensor
• P0122 Throttle Position Sensor Low Input
• P0123 Throttle Position Sensor High Input
• P0125 Engine Coolant Temperature Sensor
• P0131 Heated Oxygen Sensor Low Input Bank 1 Sensor 1
• P0132 Heated Oxygen Sensor High Input, Bank 1 Sensor 1
• P0133 Heated Oxygen Sensor Slow Response Bank 1 Sensor 1
• P0134 Heated Oxygen Sensor Insufficient Activity Bank 1 Sensor 1
• P0135 Heated Oxygen Sensor Heater Circuit, Bank 1 Sensor 1
• P0137 Heated Oxygen Sensor Low Input, Bank 1 Sensor 2
• P0138 Heated Oxygen Sensor High Input, Bank 1 Sensor 2
• P0140 Heated Oxygen Sensor Insufficient Activity Bank 1 Sensor 2
• P0141 Heated Oxygen Sensor Heater Circuit, Bank 1 Sensor 2
• P0151 Heated Oxygen Sensor Low Input, Bank 2 Sensor 1
• P0152 Heated Oxygen Sensor High Input, Bank 2 Sensor 1
• P0153 Heated Oxygen Sensor Slow Response, Bank 2 Sensor 1
• P0154 Heated Oxygen Sensor Insufficient Activity Bank 2 Sensor 1
• P0155 Heated Oxygen Sensor Heater Sensor, Bank 2 Sensor 1
• P0157 Heated Oxygen Sensor Low Input, Bank 2 Sensor 2
• P0158 Heated Oxygen Sensor High Input, Bank 2 Sensor 2
• P0160 Heated Oxygen Sensor Insufficient Activity Bank 2 Sensor 2
• P0161 Heated Oxygen Sensor Heater Circuit, Bank 2 Sensor 2
• P0171 Fuel Trim System Lean Bank 1
• P0172 Fuel Trim System Rich Bank 1
• P0174 Fuel Trim System Lean Bank 2
• P0175 Fuel Trim System Rich Bank 2
• P0300 Engine Misfire Detected
• P0301 Cylinder Misfire Detected
• P0302 Cylinder Misfire Detected
• P0303 Cylinder Misfire Detected
• P0304 Cylinder Misfire Detected
• P0305 Cylinder Misfire Detected
• P0306 Cylinder Misfire Detected
• P0307 Cylinder Misfire Detected
• P0308 Cylinder Misfire Detected
• P0325 Knock Sensor Module Circuit
• P0327 Knock Sensor Circuit Low Input
• P0336 Crankshaft Position Sensor
• P0337 Crankshaft Position Sensor Low Output
• P0338 Crankshaft Position Sensor High Output
• P0339 Crankshaft Sensor Faulty Signal
• P0340 Camshaft Position Sensor Circuit
• P0341 Camshaft Position Sensor
• P0401 Exhaust Gas Recirculation System
• P0441 EVAP System
• P0500 Vehicle Speed Sensor
• P0506 Idle Air Control Low/High Input
• P0507 Idle Air Control Low/High Input
• P1106 Manifold Absolute Pressure High Input
• P1107 Manifold Absolute Pressure Low Input
• P1111 Intake Air Temperature Sensor High Input
• P1112 Intake Air Temperature Sensor Low Input
• P1114 Engine Coolant Temperature Sensor Low Input
• P1115 Engine Coolant Temperature Sensor High Input
• P1121 Throttle Position Sensor High Input
• P1122 Throttle Position Sensor Low Input
• P1133 Heated Oxygen Sensor Insufficient Switching Bank 1 Sensor 1
• P1134 Heated Oxygen Sensor Transition Ratio, Bank 1 Sensor 1
• P1153 Heated Oxygen Sensor Insufficient Switching, Bank 2 Sensor 1
• P1154 Heated Oxygen Sensor Transition Time Ratio Bank 2 Sensor 1
• P1345 Crankshaft Position/Camshaft Position Correlation
• P1351 Ignition Control Circuit High Input
• P1361 Ignition Control Circuit Low Input
• P1380 Electronic Brake Control Module
• P1381 Electronic Brake Control Module
• P1406 Exhaust Gas Recirculation Valve
• P1441 Evaporative Emissions System Flow
• P1508 Idle Air Control System Low Or High RPM
• P1509 Idle Air Control System Low Or High RPM
• DIESEL FUEL INJECTION (DFI)
• — Engine Cranks But Does Not Run
• — Engine Starts & Stalls
• — Malfunction Indicator Lamp Inoperative
• — Malfunction Indicator Lamp Always On
• — EGR Control
• — Glow Control
• — Cruise Control
• — Symptom Test
• P0087 Common Rail Pressure Low
• P0088 Common Rail Pressure High
• P0089 Fuel Pressure Regulator Performance
• P0091 Suction Control Valve Voltage Low
• P0092 Suction Control Valve High Voltage
• P0102 Mass Air Flow Sensor Signal Low Voltage
• P0103 Mass Air Flow Sensor Signal High Voltage
• P0112 Intake Air Temperature Sensor Signal Low Voltage
• P0113 Intake Air Temperature Sensor Signal Fault
• P0117 Engine Coolant Temperature Sensor Signal Low Voltage
• P0118 Engine Coolant Temperature Sensor Signal High Voltage
• P0182 Fuel Temperature Sensor Signal Low Voltage
• P0183 Fuel Temperature Sensor Signal High Voltage
• P0192 Fuel Rail Pressure Sensor Signal Low Voltage
• P0193 Fuel Rail Pressure Sensor Signal High Voltage
• P0201 Injector Solenoid Coil Control Circuit Open
• P0202 Injector Solenoid Coil Control Circuit Open
• P0203 Injector Solenoid Coil Control Circuit Open
• P0204 Injector Solenoid Coil Control Circuit Open
• P0219 Engine Overrun Condition
• P0234 High Boost Pressure Signal
• P0237 Boost Pressure Low
• P0238 Boost Pressure High
• P0299 Engine Underboost
• P0335 No Crankshaft Position Sensor Signal
• P0340 No Camshaft Position Sensor Signal
• P0382 Glow Plug Relay Control Circuit Open Or Shorted
• P0400 EGR Valve Control Duty Cycle High
• P0405 EGR Valve Control Duty Cycle Low
• P0406 EGR Valve Position Signal High Voltage
• P0500 No Vehicle Speed Sensor Signal
• P0512 Starter Switch Signal High Voltage
• P0562 Ignition Feed Circuit Low Voltage
• P0563 Ignition Feed Circuit High Voltage
• P0567 Cruise Resume/Accel Switch Signal High Voltage
• P0568 Cruise Set /Coast Switch Signal High Voltage
• P0571 Brake Switch Signals Out Of Correlation
• P0602 Internal Microprocessor Integrity
• P0606 Internal Microprocessor Integrity
• P0642 5 Volt Reference Circuit 1 Low Voltage
• P0643 5 Volt Reference Circuit 1 High Voltage
• P0652 5 Volt Reference Circuit 2 Low Voltage
• P0653 5 Volt Reference Circuit 2 High Voltage
• P0686 ECM Main Relay High Voltage
• P0698 5 Volt Reference 3 Low Voltage
• P0699 5 Volt Reference 3 High Voltage
• P1093 Fuel Pressure Oscilation Out Of Range
• P1094 Fuel Injection Pump Flow Is High
• P1125 Accelerator Position Sensor Open Circuit
• P1261 Fuel Injector Charge Up Circuit Fault
• P1263 Cylinder 1 Or 4 Fuel Injector Solenoid Control Circuit Shorted To Ground
• P1264 Cylinder 1 Or 4 Fuel Injector Solenoid Control Circuit Shorted To Voltage
• P1265 Cylinder 2 Or 3 Fuel Injector Solenoid Control Circuit Shorted To Ground
• P1266 Cylinder 2 or 3 Fuel Injector Solenoid Control Circuit Shorted To Voltage
• P1404 EGR Valve Position Sensor Signal High Voltage
• P1593 Idle Up Volume Low Voltage
• P1594 Idle Up Volume High Voltage
• P1597 PTO Accelerator Sensor Signal High Voltage
• P2122 APP Sensor 1 Low Voltage
• P2123 APP Sensor 1 High Voltage
• P2127 APP Sensor 2 Low Voltage
• P2128 APP Sensor 2 Circuit High Voltage
• P2132 APP Sensor 3 Circuit Low Voltage
• P2133 APP Sensor 3 Circuit High Voltage
• P2138 APP Sensors 1 & 2 Signal Out Of Range
• P2139 APP Sensors 1 & 3 Signal Out Of Range
• P2140 APP Sensors 2 & 3 Signal Out Of Range
• P2152 Common 1 Injector Drive Circuit To Cylinders 1 & 4 Open
• P2155 Common 2 Injector Drive Circuit To Cylinders 2 & 3 Open
• P2228 BARO Sensor Signal Low Voltage
• P2229 BARRO Sensor Signal High Voltage
• P2293 Fuel Rail Pressure Too High
• P2294 Fuel Rail Pressure Fault
• U2104 CAN Communication BUS Message Lost
• U2106 CAN Communication BUS Message Lost
• MECHANICALLY INTEGRATED TIMING & INJECTION CONTROL SYSTEM (MITICS)
• — Solenoid Switch Fault
• — Exhaust Brake Fault
• — EGR System Fault
• — VSS System Fault
• — Aneroid Compensator Fault
• — QWS System Fault
• — FICD System Fault
• P13 ECT Sensor High Voltage
• P14 ECT Sensor Low Voltage
• P21 Rack Sensor Low Voltage
• P22 Rack Sensor High Voltage
• P23 Magnetic Switch Control Low Voltage
• P24 Magnetic Switch Control High Voltage
• P26 QWS Relay Control High Voltage
• P31 EGR EVRV Solenoid Low Voltage
• P32 EGR EVRV Solenoid High Voltage
• P33 VSS Control Low Voltage
• P34 VSS Control High Voltage
• P35 EGR Quick Cut VSV Control Low Voltage
• P36 EGR Quick Cut VSV Control High Voltage
• P41 QOS Relay Control Low Voltage
• P42 QOS Relay Control High Voltage
• P43 Aneroid Compensator VSV Control Low Voltage
• P44 Aneroid Compensator VSV Control High Voltage
• P45 Engine Speed Sensor Low Voltage
• P52 EEPROM Error
• P61 Barometric Sensor Error
• THROTTLE BODY INJECTION (TBI)
• — On-Board Diagnostic System Check
• — AP Output Check
• — Pressure Switch Module Diagnosis
• — A/C Request Signal Diagnosis
• — Restricted Exhaust System Check
• — Ignition System Check
• — Knock Sensor System Check
• — EGR System Check
• — Idle Air Control System Check
• — Idle Air Control System Check
• A-1 No MIL
• A-2 No DLC Data Or Will Not Flash DTC 12
• A-3 Engine Cranks But Will Not Run
• A-4 Injector Circuit Diagnosis
• A-5 Fuel Pump Relay Circuit Diagnosis
• A-6 Fuel System Diagnosis
• 13 Oxygen Sensor Circuit Open
• 14 ECT Sensor Circuit/High Temperature Indicated
• 15 ECT Sensor Circuit/Low Temperature Indicated
• 16 Vehicle Speed Sensor Buffer Fault
• 21 Throttle Position Sensor Circuit/Signal High Input
• 22 Throttle Position Sensor Circuit/Signal Voltage Low
• 24 Vehicle Speed Sensor/2WD
• 32 EGR System
• 33 MAP Sensor Circuit/Signal Voltage High-Low Vacuum
• 34 MAP Sensor Circuit/Signal Voltage Low-High Vacuum
• 42 Ignition Control
• 43 Knock Sensor Circuit
• 44 Oxygen Sensor Circuit/Lean Exhaust Indicated
• 45 Oxygen Sensor Circuit/Rich Exhaust Indicated
• 51 Faulty PROM (MEM-CAL)
• 53 System Over Voltage
• 55 Faulty PCM
• 54 Fuel Pump Circuit/Low Input
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Isuzu 4HK1-TC OBD CODES

• P0016 CKP & CMP Sensor Signals Out Of Range
• P0087 Common Rail Pressure Low
• P0088 Common Rail Pressure High
• P0089 Fuel Pressure Regulator Performance
• P0091 Suction Control Valve Voltage Low
• P0103 Mass Air Flow Sensor Signal High Voltage
• P0112 Intake Air Temperature Sensor Signal Low Voltage
• P0113 Intake Air Temperature Sensor Signal Fault
• P0116 Engine Coolant Temperature Sensor Signal Fault
• P0117 Engine Coolant Temperature Sensor Signal Low Voltage
• P0118 Engine Coolant Temperature Sensor Signal High Voltage
• P0126 Engine Coolant Temperature Sensor Fault
• P0128 Engine Coolant Temperature Fault
• P0181 Fuel Temperature Sensor Fault
• P0182 Fuel Temperature Sensor Signal Low Voltage
• P0183 Fuel Temperature Sensor Signal High Voltage
• P0192 Fuel Rail Pressure Sensor Signal Low Voltage
• P0193 Fuel Rail Pressure Sensor Signal High Voltage
• P0201 Injector Solenoid Coil No. 1 Control Circuit Open
• P0202 Injector Solenoid Coil No. 2 Control Circuit Open
• P0203 Injector Solenoid Coil No. 3 Control Circuit Open
• P0204 Injector Solenoid Coil No. 4 Control Circuit Open
• P0219 Engine Overrun Condition
• P0234 High Boost Pressure Signal
• P0237 Boost Pressure Low
• P0238 Boost Pressure High
• P0261 Injector Solenoid Coil Control Circuit Short
• P0264 Injector Solenoid Coil Control Circuit Short
• P0267 Injector Solenoid Coil Control Circuit Short
• P0270 Injector Solenoid Coil Control Circuit Short
• P0299 Engine Under boost
• P0300 Engine Misfire
• P0301 Fuel Injection Balancing Rate High
• P0302 Fuel Injection Balancing Rate High
• P0303 Fuel Injection Balancing Rate High
• P0304 Fuel Injection Balancing Rate High
• P0335 No Crankshaft Position Sensor Signal
• P0340 No Camshaft Position Sensor Signal
• P0341 Camshaft Position Sensor Missing Pulses
• P0381 Glow Indicator Lamp Control Circuit Low Voltage
• P0382 Glow Plug Relay Control Circuit Open Or Shorted
• P0400 EGR Valve Control Duty Cycle High
• P0401 EGR Flow Amount Insufficient
• P0403 EGR Valve Control WPM Signal Fault
• P0404 EGR Valve Control Duty Signal Error
• P0405 EGR Valve Control Duty Cycle Low
• P0406 EGR Valve Position Signal High Voltage
• P0477 Exhaust Brake Control Relay Low Voltage
• P0478 Exhaust Brake Control Relay High Voltage
• P0500 No Vehicle Speed Sensor Signal
• P0506 Idle Speed Lower Than Desired
• P0507 Idle Speed High Than Desired
• P0512 Starter Switch Signal High Voltage
• P0562 Ignition Feed Circuit Low Voltage
• P0563 Ignition Feed Circuit High Voltage
• P0567 Cruise Resume/Accel
• P0568 Cruise Set /Coast Switch Signal High Voltage
• P0571 Brake Switch Signals Out Of Correlation
• P0602 Internal Microprocessor Integrity
• P0606 Internal Microprocessor Integrity
• P0642 5 Volt Reference Circuit 1 Low Voltage
• P0643 5 Volt Reference Circuit 1 High Voltage
• P0650 MIL Control Circuit Low Voltage
• P0652 5 Volt Reference Circuit 2 Low Voltage
• P0653 5 Volt Reference Circuit 2 High Voltage
• P0670 Glow Plug Controller System Voltage Too High Or Low
• P0671 Glow Plug Controller Circuit No. 1 Open Or Short
• P0672 Glow Plug Controller Circuit No. 2 Open Or Short
• P0673 Glow Plug Controller Circuit No. 3 Open Or Short
• P0674 Glow Plug Controller Circuit No. 4 Open Or Short
• P0686 ECM Main Relay High Voltage
• P0687 ECM Main Relay High voltage
• P0698 5 Volt Reference 3 Low Voltage
• P0699 5 Volt Reference 3 High Voltage
• P0700 MIL Illumination Fault
• P0802 MIL Request Circuit Open Or High Voltage
• P1093 Fuel Pressure Oscillation Out Of Range
• P1094 Fuel Injection Pump Flow Is High
• P1125 Accelerator Position Sensor Open Circuit
• P1261 Fuel Injector Charge Up Circuit Fault
• P1263 Cylinder 1 Or 4 Injector Solenoid Control Circuit Shorted To Ground
• P1264 Cylinder 1 Or 4 Injector Solenoid Control Circuit Shorted To Voltage
• P1265 Cylinder 2 Or 3 Injector Solenoid Control Circuit Shorted To Ground
• P1266 Cylinder 2 or 3 Injector Solenoid Control Circuit Shorted To Voltage
• P1293 Injector Charge Up Circuit Insufficient Or Over Charge
• P1404 EGR Valve Position Sensor Signal High Voltage
• P1593 Idle Up Volume Low Voltage
• P1594 Idle Up Volume High Voltage
• P1597 PTO Accelerator Sensor Signal High Voltage
• P1621 ECM Internal Fault
• P2122 APP Sensor 1 Low Voltage
• P2123 APP Sensor 1 High Voltage
• P2127 APP Sensor 2 Low Voltage
• P2128 APP Sensor 2 Circuit High Voltage
• P2132 APP Sensor 3 Circuit Low Voltage
• P2133 APP Sensor 3 Circuit High Voltage
• P2138 APP Sensors 1 & 2 Signal Out Of Range
• P2139 APP Sensors 1 & 3 Signal Out Of Range
• P2140 APP Sensors 2 & 3 Signal Out Of Range
• P2146 Common 1 Fuel Injector Drive Circuit Open
• P2147 Cylinder 1 Or 4 Injector Solenoid Control Circuit shorted To Ground
• P2148 Cylinder 1 Or 4 Injector Solenoid Control Circuit shorted To Voltage
• P2149 Common 2 Fuel Injector Drive Circuit Open
• P2150 Cylinder 2 Or 3 Injector Solenoid Control Circuit shorted To Ground
• P2151 Cylinder 2 Or 3 Injector Solenoid Control Circuit shorted To Voltage
• P2152 Common 1 Injector Drive Circuit To Cylinders 1 & 4 Open
• P2155 Common 2 Injector Drive Circuit To Cylinders 2 & 3 Open
• P2227 Difference Between BARO Pressure & Boost Pressure High
• P2228 BARO Sensor Signal Low Voltage
• P2229 BARO Sensor Signal High Voltage
• P2293 Fuel Rail Pressure Too High
• P2294 Fuel Rail Pressure Fault
• U0073 CAN Bus OFF
• U0101 CAN Bus OFF
• U0106 CAN Bus OFF
• U2104 CAN Communication BUS Message Lost
• U2106 CAN Communication BUS Message Lost Diagnostic System Check
• P0016 CKP & CMP Sensor Signals Out Of Range
• P0027 Exhaust Throttle Control Valve Performance
• P003A Turbocharger Boost Control Position Not Learned
• P0045 Turbocharger Boost Control Solenoid Control Circuit
• P0079 Exhaust Valve Control Circuit Low Voltage
• P0080 Exhaust Valve Control Circuit High Voltage
• P0087 Fuel Rail Pressure Too Low
• P0088 Fuel Rail Pressure FRP Too High
• P0089 Fuel Pressure Regulator Performance
• P0091 Fuel Pressure Regulator Solenoid 1 Control Circuit Low Voltage
• P0092 Fuel Pressure Regulator Solenoid 1 Control Circuit High Voltage
• P0093 Fuel System Large Leak Detected
• P0097 Intake Air Temperature Sensor Circuit 2 Low Voltage
• P0098 Intake Air Temperature Sensor Circuit 2 High Voltage
• P0101 Mass Air Flow Sensor Performance
• P0102 Mass Air Flow Sensor Circuit Low Voltage
• P0103 Mass Air Flow Sensor Circuit High Voltage
• P0112 Intake Air Temperature Sensor 1 Circuit Low Voltage
• P0113 Intake Air Temperature Sensor 1 Circuit High Voltage
• P0116 Engine Coolant Temperature Sensor Performance
• P0117 Engine Coolant Temperature Sensor Circuit Low Voltage
• P0118 Engine Coolant Temperature Sensor Circuit High Voltage
• P0126 Engine Coolant Temperature Insufficient For Stable Operation
• P0128 Engine Coolant Temperature Below Thermostat Regulating Temperature
• P0181 Fuel Temperature Sensor Performance
• P0182 Fuel Temperature Sensor Circuit Low Voltage
• P0183 Fuel Temperature Sensor Circuit High Voltage
• P0191 Fuel Rail Pressure Sensor Performance
• P0192 Fuel Rail Pressure Sensor Circuit Low Voltage
• P0193 Fuel Rail Pressure Sensor Circuit High Voltage
• P0201 Injector Control Circuit
• P0202 Injector Control Circuit
• P0203 Injector Control Circuit
• P0204 Injector Control Circuit
• P0219 Engine Overspeed
• P0234 Turbocharger Engine Overboost
• P0237 Turbocharger Boost Sensor Circuit Low Voltage
• P0238 Turbocharger Boost Sensor Circuit High Voltage
• P0261 Injector Control Circuit Low Voltage
• P0264 Injector Control Circuit Low Voltage
• P0267 Injector Control Circuit Low Voltage
• P0270 Injector Control Circuit Low Voltage
• P0299 Turbocharger Engine Underboost
• P02E2 Intake Air Flow Control Circuit Low Voltage
• P02E3 Intake Air Flow Control Circuit High Voltage
• P02E7 Intake Air Flow Position Sensor Performance
• P02E8 Intake Air Flow Position Sensor Circuit Low Voltage
• P02E9 Intake Air Flow Position Sensor Circuit High Voltage
• P0300 Engine Misfire Detected
• P0301 Cylinder 1, 2, 3 or 4 Misfire Detected
• P0302 Cylinder 1, 2, 3 or 4 Misfire Detected
• P0303 Cylinder 1, 2, 3 or 4 Misfire Detected
• P0304 Cylinder 1, 2, 3 or 4 Misfire Detected
• P0335 Crankshaft Position Sensor Circuit
• P0336 Crankshaft Position Sensor Performance
• P0340 Camshaft Position Sensor Circuit
• P0341 Camshaft Position Sensor Performance
• P0381 Wait To Start Lamp Control Circuit
• P0401 Exhaust Gas Recirculation Flow Insufficient
• P0402 Exhaust Gas Recirculation Flow Excessive
• P0403 Exhaust Gas Recirculation Solenoid Control Circuit
• P0404 Exhaust Gas Recirculation Open Position Performance
• P0405 Exhaust Gas Recirculation Position Sensor Circuit Low Voltage
• P0406 Exhaust Gas Recirculation Position Sensor Circuit High Voltage
• P040B Exhaust Gas Recirculation Temperature Sensor 1 Circuit Performance
• P040C Exhaust Gas Recirculation Temperature Sensor 1 Circuit Low Voltage
• P041D Exhaust Gas Recirculation Temperature Sensor 2 Circuit High Voltage
• P0420 Catalyst System Low Efficiency
• P042E Exhaust Gas Recirculation Closed Position Performance
• P0500 Vehicle Speed Sensor Circuit
• P0506 Idle Speed Low
• P0507 Idle Speed High
• P0512 Start Switch Circuit
• P0522 Engine Oil Pressure Sensor Circuit Low Voltage
• P0523 Engine Oil Pressure Sensor Circuit High Voltage
• P0545 Exhaust Gas Temperature Sensor Circuit 1 Low Voltage
• P0545 Exhaust Gas Temperature Sensor Circuit 1 Low Voltage
• P0546 Exhaust Gas Temperature Sensor Circuit 1 High Voltage
• P0562 System Voltage Low
• P0563 System Voltage High
• P0567 Cruise Control Resume Switch Circuit
• P0568 Cruise Control Set Switch Circuit
• P0571 Cruise Control Brake Switch Circuit
• P0602 Control Module Not Programmed
• P0606 Control Module Internal Performance
• P062F Control Module Long Term Memory Performance
• P0642 5 Volt Reference 1 Circuit Low Voltage
• P0643 5 Volt Reference 1 Circuit High Voltage
• P064C Glow Plug Control Module Performance
• P0650 Malfunction Indicator Lamp Control Circuit
• P0652 5 Volt Reference 2 Circuit Low Voltage
• P0653 5 Volt Reference 2 Circuit High Voltage
• P0671 Glow Plug Control Circuit
• P0672 Glow Plug Control Circuit
• P0673 Glow Plug Control Circuit
• P0674 Glow Plug Control Circuit
• P0687 Engine Controls Ignition Relay Control Circuit High Voltage
• P0700 Transmission Control Module Request MIL Illumination
• P0802 Transmission Control Module MIL Request Circuit
• P1085 High Pressure Fuel Pump Performance
• P1093 Fuel Rail Pressure Too Low
• P1125 Accelerator Pedal Position System
• P1259 High Pressure Fuel Pump Performance
• P1293 Injector Positive Charge Up Control Circuit
• P1471 Diesel Particulate Filter Regeneration Insufficient
• P160B Fuel Injector Calibration Checksum Error
• P2002 Diesel Particulate Filter Low Efficiency
• P2032 Exhaust Gas Temperature Sensor 2 Circuit Low Voltage
• P2033 Exhaust Gas Temperature Sensor 2 Circuit High Voltage
• P2080 Exhaust Gas Temperature Sensor 1 Performance
• P2084 Exhaust Gas Temperature Sensor 2 Performance
• P20E2 Exhaust Gas Temperature Sensor 1 – 2 Correlation
• P2122 Accelerator Pedal Position Sensor 1 Circuit Low Voltage
• P2123 Accelerator Pedal Position Sensor 1 Circuit High Voltage
• P2127 Accelerator Pedal Position Sensor 2 Circuit Low Voltage
• P2128 Accelerator Pedal Position Sensor 2 Circuit High Voltage
• P2138 Accelerator Pedal Position Sensor 1 – 2 Correlation
• P2146 Injector Positive Voltage Control Circuit Group 1 Or 2
• P2147 Injector Positive Voltage Control Circuit Group 1 Or 2 Low Voltage
• P2149 Injector Positive Voltage Control Circuit Group 1 Or 2
• P2148 Injector Positive Voltage Control Circuit Group 1 or 2 High Voltage
• P2150 Injector Positive Voltage Control Circuit Group 1 Or 2 Low Voltage
• P2151 Injector Positive Voltage Control Circuit Group 1 or 2 High Voltage
• P2199 Intake Air Temperature Sensor 1 – 2 Correlation
• P2227 Barometric Pressure Sensor Performance
• P2228 Barometric Pressure Sensor Circuit Low Voltage
• P2229 Barometric Pressure Sensor Circuit High Voltage
• P244B Diesel Particulate Filter Differential Pressure Too High
• P244C Diesel Particulate Filter Regeneration Duration
• P2453 Diesel Particulate Filter Differential Pressure Sensor Performance
• P2454 Diesel Particulate Filter Differential Pressure Sensor Circuit Low Voltage
• P2455 Diesel Particulate Filter Differential Pressure Sensor Circuit High Voltage
• P2457 Exhaust Gas Recirculation Cooling System Performance
• P2463 Diesel Particulate Filter – Soot Accumulation
• P254D Power Take Off Engine Speed Selector Sensor Circuit High Voltage
• P2564 Turbocharger Boost Control Position Sensor Low Voltage
• P2565 Turbocharger Boost Control Position Sensor High Voltage
• P256C Engine Idle Speed Selector Sensor Low Voltage
• P256D Engine Idle Speed Selector Sensor High Voltage
• P268A Fuel Injector Calibration Not Programmed
• U0073 Control Module Communication Bus Off
• U0101 Lost Communication With TCM
• U0106 Lost Communication With Glow Plug Control Module
• U010C Turbocharger CAN Communication
• U0294 Lost Communication With Data Recording Module
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Learn More👉  BAW Truck Owners Manual