C1908 – OBD-II DTC

OBD-II DTC C1908 – Ride Control LR Shock Actuator Circuit Short To Ground

DTC C1908 meaning

DTC C1908 refers to a diagnostic trouble code indicating a short circuit to ground in the left rear shock actuator circuit of a vehicle’s ride control system. This code is part of the On-Board Diagnostics II (OBD-II) system, which monitors various vehicle components to ensure proper functionality. The left rear shock actuator is responsible for adjusting the suspension settings to enhance ride quality and handling. A short to ground in this circuit can disrupt the actuator’s operation, leading to potential handling and comfort issues.

DTC C1908 symptoms

Common symptoms associated with DTC C1908 may include:

• Warning lights on the dashboard, such as the check engine light or ride control warning light.
• Decreased ride quality or handling performance.
• Inconsistent or unresponsive suspension adjustments.
• Potential noise from the suspension system.

DTC C1908 causes

Several factors can lead to the occurrence of DTC C1908, including:

• Damaged wiring or connectors in the left rear shock actuator circuit.
• Faulty left rear shock actuator.
• Corrosion or poor connections in the electrical system.
• Issues with the vehicle’s body control module (BCM) or suspension control module.

DTC C1908 seriousness

DTC C1908 is considered a moderate to serious issue. While the vehicle may still be operable, the compromised ride control system can lead to poor handling and increased wear on suspension components. Ignoring this code can result in further damage to the suspension system and may affect overall vehicle safety.

How to diagnose DTC C1908

To diagnose DTC C1908, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the C1908 code.
2. Inspect the wiring and connectors related to the left rear shock actuator for any visible damage or corrosion.
3. Check for continuity in the circuit to ensure there are no breaks or shorts.
4. Test the left rear shock actuator for proper operation using a multimeter.
5. Examine the body control module (BCM) and suspension control module for any faults.

How to fix DTC C1908 step-by-step instructions

To fix DTC C1908, follow these step-by-step instructions:

1. Disconnect the vehicle’s battery to ensure safety while working on the electrical system.
2. Inspect and repair any damaged wiring or connectors in the left rear shock actuator circuit.
3. If the left rear shock actuator is faulty, replace it with a new or refurbished unit.
4. Clean any corrosion from connectors and ensure all connections are secure.
5. Reconnect the battery and clear the DTC using an OBD-II scanner.
6. Test drive the vehicle to ensure the issue is resolved and monitor for any reoccurrence of the code.

How to erase DTC C1908

To erase DTC C1908, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn on the vehicle’s ignition without starting the engine.
3. Navigate to the trouble codes section of the scanner.
4. Select the option to clear or erase the codes.
5. Confirm the action and wait for the scanner to indicate that the codes have been cleared.
6. Disconnect the scanner and perform a test drive to ensure the code does not return.

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