Harley-Davidson OBD Diagnostic Trouble Codes

Harley-Davidson OBD Diagnostic Trouble Codes

To access codes

  1. Turn Ignition switch to OFF & Run/Stop switch is to Run.
  2. Push odometer reset button in & hold.
  3. Turn ignition switch to Ignition and release odometer reset button. Background lighting sould illumi nate, speedometer needle should sweep its full range and indicator lamps (battery, security, low fuel, check engine and cruise) should illuminate. The word “diag” should then appear.
  4. Push the odometer reset button once and you will see the selection menu “PSSPt” (on mine the “t” looks more like a “ ╘ ” )with the first P flashing.
  5. Each letter represents an area of the diagnostics module. The module that is flashing is the one you are going to check. To move from one letter (module) to the next, you push the odometer reset button one time. (from P to S to SP to t and back to P, etc.)
  • P = ECM/ICM (Electronic Control Module [EFI] / Ignition Control Module [Carbureted])
  • S = TSM/TSSM (Turn Signal/ Turn Signal Security Module)
  • SP = speedometer
  • T = tachometer

To get the DTC within an area of diagnostics, push and hold the odometer reset button in for 5 seconds and release. If there are any DTC’s the code will be displayed or the word “none” will appear if there are no DTC’s. Push the odometer reset button againto view additional codes if they exist.

  1. Record the codes.
  2. If DTC’s are not to be cleared, Press and release the odometer reset button. Part number of module will be displayed.
  3. NOTE: To determine if a code is current or historic, clear the displayed code by pushing in and holding the odometer reset button ( longer than 5 seconds) until ‘clear’ comes up. Release the odometer reset button. Turn OFF the ignition switch. Run your bike and shut it down then recheck the DTC’s again by repeating steps 1 to 3 If the code is current it will reappear.
  4. Press and release the odometer reset button to continue to the next module.
  5. Turn Ignition switch to OFF. On models not equipped with a tachometer “No Rsp” will appear when the tachometer identifier is selected.

“No Rsp” will also appear if the run/off switch is in the off position when doing this procedure.

  • HFSM = Hands Free Security Module
  • TSM = Turn signal module

Priority/DTC/Fault condition

  • 1. P0605 ECM FLASH Memory Error
  • 2. P0603 ECM EEPROM Memory Error
  • 3. U1300 ECM Serial Data Low
  • 4. U1301 ECM Serial Data High
  • 5. U1097 Loss of Speedometer Serial Data to ECM
  • 6. U1064 Loss of TSM/FS FM Serial Data to ECM
  • 7. P1003 System relay contacts open
  • 8. P1002 System Relay Coil High/Shorted
  • 9. P1001 System Relay Coil Open/Low
  • 10. P1004 System Relay Contacts Closed
  • 11. P1009 Incorrect Password
  • 12. P1010 Missing Password
  • 13. P06415 V+Vref 1 Out Of Range
  • 14. P06515 V+Vref 2 Out Of Range
  • 15. P0373 CKP Sensor Intermittent
  • 16. P0107 Map Sensor Open/Low
  • 17. P0108 Map Sensor High
  • 18. P0374 CKP Sensor Synch Error
  • 19. P1600 EFI Module Processor Internal Error
  • 20. P1270 TGS Validation Error
  • 21. P2107 EFI Module Processor Internal Fault
  • 22. P2122 TGS1 Low/Open
  • 23. P2123 TGS1 High
  • 24. P2127 TGS2 Low/Open
  • 25. P2128 TGS2 High
  • 26. P2138 TGS Correlation Error (Twist grip sensor)
  • 27. P0120 TPS1 Range Error
  • 28. P0220 TPS2 Range Error
  • 29. P0122 TPS1 Low
  • 30. P0123 TPS2 High/Open
  • 31. P0222 TPS2 Low
  • 32. P0223 TPS2 High/Open
  • 33. P2135 TPS Correlation Error
  • 34. P2119 EFI Motor Throttle Body Range Performance
  • 35. P2100 EFI Motor Circuit Open
  • 36. P2101 EFI Motor Circuit Range Performance (Actuation Error)
  • 37. P2102 EFI Motor Circuit Low
  • 38. P2103 EFI Motor Circuit High
  • 39. P2176 EFI Closed Position Not Learned
  • 40. P1514 Air Flow Fault
  • 41. P2105 EFI Forced engine shutdown
  • 42. P1501 Jiffy Stand Sensor Low
  • 43. P1502 Jiffy Stand Sensor High
  • 44. P0572 Brake Switch Low
  • 45. P0117 ET Sensor Low
  • 46. P0118 ET Sensor High
  • 47. P0112I AT Voltage Low
  • 48. P0113I AT Voltage Open/High
  • 49. P1351 Front Ignition Coil Driver Open/Low
  • 50. P1354 Rear Ignition Coil Driver Open/Low
  • 51. P1352 Front Ignition Coil Driver High/Shorted
  • 52. P1355 Rear Ignition Coil Driver High/Shorted
  • 53. P1357 Front Cylinder Combustion Intermittent
  • 54. P1358 Rear Cylinder Combustion Intermittent
  • 55. P0261 Front Injector Open/Low
  • 56. P0263 Rear Injector Open/Low
  • 57. P0262 Front Injector High
  • 58. P0264 Rear Injector High
  • 59. P0562 Battery Voltage Low
  • 60. P0563 Battery Voltage High
  • 61. P0501 VSS Sensor Low
  • 62. P0502 VSS Sensor High/Open..
  • 63. P1356 Rear Cylinder No Combustion
  • 64. P1353 Front Cylnder No Combustion
  • 65. P0444 Purge Solenoid Open/Low
  • 66. P0445 Purge Solenoid High
  • 67. P1475 Exhaust Actuation Position Error
  • 68. P1477 Exhaust Actuator Open/Low
  • 69. P1478 Exhaust Actuator Shorted/High
  • 70. P0131 Front Oxygen Sensor Low
  • 71. P0151 Rear Oxygen Sensor Low
  • 72. P0132 Front Oxygen Sensor High
  • 73. P0152 Rear Oxygen Sensor High
  • 74 P0134 Front Oxygen Sensor Inactive
  • 75. P0154 Rear Oxygen Sensor Inactive
  • 76. P1510 EFI Limited Performance Mode
  • 77. P1511 EFI Power Management Mode
  • 78. P1512 EFI Forced Idle Mode
  • 79. P0577 Cruise Control Input High

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Hello, my name is Erwin Salarda, and I'm from the Philippines. My main interests are computers and automobiles, and I am very enthusiastic about learning new things in life. Everything on this website was lovingly created with the goal of sharing it with you.