Honda Ridgeline Top 18 Most Common DTC Issues

Honda Ridgeline Top 18 DTC Issues

Though the Honda Ridgeline is a dependable and versatile pickup truck, even the best vehicles have problems. DTCs are one of the most common methods for identifying problems in your Honda Ridgeline. The top 18 DTC issues that Honda Ridgeline owners may encounter are discussed in this article.

TOP 18 DTC

DTC P0420

Cause: The cause of this diagnostic trouble code (DTC) is often a faulty oxygen sensor or a clogged catalytic converter.

Symptoms: Engine performance may be reduced, the vehicle may not pass emissions tests, and the check engine light may be illuminated.

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Location of Fault: The oxygen sensor is typically located in the exhaust system upstream of the catalytic converter. The catalytic converter is typically located in the exhaust system under the vehicle.

How to Fix: Replacing the faulty oxygen sensor or cleaning the catalytic converter can often fix this issue. In some cases, a more in-depth engine diagnosis may be necessary to determine the root cause of the problem.

DTC P0430

Cause: The cause of this diagnostic trouble code (DTC) is often a faulty catalytic converter.

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Symptoms: Engine performance may be reduced, the vehicle may not pass emissions tests, and the check engine light may be illuminated.

Location of Fault: The catalytic converter is typically located in the exhaust system under the vehicle.

How to Fix: Replacing the faulty catalytic converter can often fix this issue. In some cases, a more in-depth engine diagnosis may be necessary to determine the root cause of the problem.

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DTC P0172

Cause: The cause of this diagnostic trouble code (DTC) is often a rich fuel mixture, which can be caused by a number of factors including a clogged fuel injector, a faulty mass air flow sensor, or a vacuum leak in the intake system.

Symptoms: Engine performance may be reduced, the vehicle may not pass emissions tests, and the check engine light may be illuminated.

Location of Fault: The fuel injectors, mass air flow sensor, and vacuum system are all located in the engine bay.

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How to Fix: Replacing the faulty component or cleaning the fuel injectors can often fix this issue. In some cases, a more in-depth engine diagnosis may be necessary to determine the root cause of the problem.

DTC P0175

Cause: The cause of this diagnostic trouble code (DTC) is often a lean fuel mixture, which can be caused by a number of factors including a clogged air filter, a vacuum leak in the intake system, or a faulty mass air flow sensor.

Symptoms: Engine performance may be reduced, the vehicle may not pass emissions tests, and the check engine light may be illuminated.

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Location of Fault: The air filter, vacuum system, and mass air flow sensor are all located in the engine bay.

How to Fix: Replacing the faulty component or cleaning the air filter can often fix this issue. In some cases, a more in-depth engine diagnosis may be necessary to determine the root cause of the problem.

DTC P0706

Cause: The cause of this diagnostic trouble code (DTC) is often a fault in the transmission range sensor, which is responsible for indicating the position of the gear selector.

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Symptoms: The transmission may shift erratically, the check engine light may be illuminated, and the vehicle may experience slipping or surging while driving.

Location of Fault: The transmission range sensor is typically located on the transmission housing or the selector lever.

How to Fix: Replacing the faulty transmission range sensor can often fix this issue. In some cases, a more in-depth transmission diagnosis may be necessary to determine the root cause of the problem.

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DTC P0171

Cause: The cause of this diagnostic trouble code (DTC) is often a lean fuel mixture, which can be caused by a number of factors including a clogged air filter, a vacuum leak in the intake system, or a faulty mass air flow sensor.

Symptoms: Engine performance may be reduced, the vehicle may not pass emissions tests, and the check engine light may be illuminated.

Location of Fault: The air filter, vacuum system, and mass air flow sensor are all located in the engine bay.

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How to Fix: Replacing the faulty component or cleaning the air filter can often fix this issue. In some cases, a more in-depth engine diagnosis may be necessary to determine the root cause of the problem.

DTC P0300

Cause: The cause of this diagnostic trouble code (DTC) is often a misfire in one or more cylinders, which can be caused by a number of factors including a faulty spark plug, a clogged fuel injector, or a vacuum leak in the intake system.

Symptoms: Engine performance may be reduced, the vehicle may experience a loss of power, and the check engine light may be illuminated.

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Location of Fault: The spark plugs, fuel injectors, and vacuum system are all located in the engine bay.

How to Fix: Replacing the faulty component or cleaning the fuel injectors can often fix this issue. In some cases, a more in-depth engine diagnosis may be necessary to determine the root cause of the problem.

DTC P0497

Cause: The cause of this diagnostic trouble code (DTC) is often an evaporation system leak, which can be caused by a number of factors including a loose or damaged fuel cap, a faulty vapor canister, or a damaged hose in the evaporation system.

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Symptoms: The check engine light may be illuminated, and the vehicle may experience a strong fuel odor while driving.

Location of Fault: The fuel cap, vapor canister, and evaporation system hoses are all located in the engine bay.

How to Fix: Replacing the faulty component or tightening the fuel cap can often fix this issue. In some cases, a more in-depth engine diagnosis may be necessary to determine the root cause of the problem.

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DTC P0700

Cause: The cause of this diagnostic trouble code (DTC) is often a fault in the transmission control module, which is responsible for controlling the operation of the transmission.

Symptoms: The transmission may shift erratically, the check engine light may be illuminated, and the vehicle may experience slipping or surging while driving.

Location of Fault: The transmission control module is typically located in the engine bay.

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How to Fix: Replacing the faulty transmission control module can often fix this issue. In some cases, a more in-depth transmission diagnosis may be necessary to determine the root cause of the problem.

DTC P1078

Cause: The cause of this diagnostic trouble code (DTC) is often a fault in the variable valve timing (VVT) system, which is responsible for adjusting the timing of the engine valves for optimal performance.

Symptoms: Engine performance may be reduced, the check engine light may be illuminated, and the vehicle may experience a lack of power or rough idling.

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Location of Fault: The VVT system components are located in the engine bay.

How to Fix: Replacing the faulty VVT components can often fix this issue. In some cases, a more in-depth engine diagnosis may be necessary to determine the root cause of the problem.

DTC P2138

Cause: The cause of this diagnostic trouble code (DTC) is often a fault in the throttle pedal position sensor, which is responsible for indicating the position of the throttle pedal to the engine control module.

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Symptoms: Engine performance may be reduced, the vehicle may experience a loss of power or stalling, and the check engine light may be illuminated.

Location of Fault: The throttle pedal position sensor is typically located on the throttle body in the engine bay.

How to Fix: Replacing the faulty throttle pedal position sensor can often fix this issue. In some cases, a more in-depth engine diagnosis may be necessary to determine the root cause of the problem.

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DTC P2279

Cause: The cause of this diagnostic trouble code (DTC) is often a fault in the intake air system, which can be caused by a number of factors including a vacuum leak, a clogged air filter, or a faulty mass air flow sensor.

Symptoms: Engine performance may be reduced, the vehicle may experience a loss of power or stalling, and the check engine light may be illuminated.

Location of Fault: The vacuum system, air filter, and mass air flow sensor are all located in the engine bay.

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How to Fix: Replacing the faulty component or cleaning the air filter can often fix this issue. In some cases, a more in-depth engine diagnosis may be necessary to determine the root cause of the problem.

DTC P219a

Cause: The cause of this diagnostic trouble code (DTC) is often a fault in the fuel system, which can be caused by a number of factors including a clogged fuel injector, a faulty fuel pressure sensor, or a vacuum leak in the intake system.

Symptoms: Engine performance may be reduced, the vehicle may experience a loss of power or stalling, and the check engine light may be illuminated.

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Location of Fault: The fuel injectors, fuel pressure sensor, and vacuum system are all located in the engine bay.

How to Fix: Replacing the faulty component or cleaning the fuel injectors can often fix this issue. In some cases, a more in-depth engine diagnosis may be necessary to determine the root cause of the problem.

DTC P2652

Cause: The cause of this diagnostic trouble code (DTC) is often a fault in the rocker arm actuator system, which is responsible for adjusting the valve timing in the engine.

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Symptoms: Engine performance may be reduced, the check engine light may be illuminated, and the vehicle may experience a lack of power or rough idling.

Location of Fault: The rocker arm actuator system components are located in the engine bay.

How to Fix: Replacing the faulty rocker arm actuator components can often fix this issue. In some cases, a more in-depth engine diagnosis may be necessary to determine the root cause of the problem.

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DTC P2422

Cause: The cause of this diagnostic trouble code (DTC) is often a fault in the evaporative emission control system, which is responsible for preventing fuel vapors from escaping into the atmosphere.

Symptoms: The check engine light may be illuminated, and the vehicle may experience a strong fuel odor while driving.

Location of Fault: The evaporative emission control system components are located in the engine bay.

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How to Fix: Replacing the faulty evaporative emission control system components can often fix this issue. In some cases, a more in-depth engine diagnosis may be necessary to determine the root cause of the problem.

DTC P2647

Cause: The cause of this diagnostic trouble code (DTC) is often a fault in the rocker arm oil control solenoid system, which is responsible for controlling the flow of oil to the rocker arm actuators in the engine.

Symptoms: Engine performance may be reduced, the check engine light may be illuminated, and the vehicle may experience a lack of power or rough idling.

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Location of Fault: The rocker arm oil control solenoid system components are located in the engine bay.

How to Fix: Replacing the faulty rocker arm oil control solenoid components can often fix this issue. In some cases, a more in-depth engine diagnosis may be necessary to determine the root cause of the problem.

DTC P2135

Cause: The cause of this diagnostic trouble code (DTC) is often a fault in the throttle position sensor, which is responsible for indicating the position of the throttle to the engine control module.

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Symptoms: Engine performance may be reduced, the vehicle may experience a loss of power or stalling, and the check engine light may be illuminated.

Location of Fault: The throttle position sensor is typically located on the throttle body in the engine bay.

How to Fix: Replacing the faulty throttle position sensor can often fix this issue. In some cases, a more in-depth engine diagnosis may be necessary to determine the root cause of the problem.

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DTC U0155

Cause: The cause of this diagnostic trouble code (DTC) is often a fault in the communication network between the various control modules in the vehicle.

Symptoms: The vehicle may experience various electrical problems, such as inoperative gauges or warning lights, and the check engine light may be illuminated.

Location of Fault: The communication network components are located throughout the vehicle.

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How to Fix: Replacing the faulty communication network components or repairing the communication network can often fix this issue. In some cases, a more in-depth electrical diagnosis may be necessary to determine the root cause of the problem.

WORDS FROM ERWIN

By understanding the most common DTC issues in the Honda Ridgeline, owners can be better prepared to diagnose and fix problems. Regular maintenance and prompt attention to warning signs can help prevent these issues from occurring. It’s important to consult with a trusted mechanic or dealership if you’re unsure how to diagnose or fix a problem in your Honda Ridgeline. Regular check-ups and proper maintenance can keep your vehicle running smoothly for years to come.

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