C1907 – OBD-II DTC

OBD-II DTC C1907 – Ride Control LR Shock Actuator Circuit Short To Battery

DTC C1907 meaning

DTC C1907 refers to a diagnostic trouble code indicating a short circuit in the Ride Control Left Rear (LR) Shock Actuator Circuit to battery voltage. This code is part of the On-Board Diagnostics II (OBD-II) system, which monitors various vehicle components to ensure proper functionality. When the system detects that the voltage in the LR shock actuator circuit is higher than expected, it triggers this code, signaling a potential electrical issue.

DTC C1907 symptoms

Common symptoms associated with DTC C1907 may include:

• Warning lights on the dashboard, such as the check engine light.
• Inconsistent or poor ride quality due to malfunctioning suspension.
• Increased noise from the suspension system.
• Possible loss of ride control features, such as automatic leveling.

DTC C1907 causes

Several factors can lead to the triggering of DTC C1907, including:

• Wiring issues, such as frayed or damaged wires in the LR shock actuator circuit.
• Corrosion or poor connections at the actuator or related connectors.
• Faulty shock actuator itself, which may be shorted internally.
• Issues with the vehicle’s body control module (BCM) or suspension control module.

DTC C1907 seriousness

The seriousness of DTC C1907 can vary based on the vehicle’s design and the extent of the issue. However, it is generally considered a moderate to serious concern because:

• It can affect the vehicle’s handling and ride quality.
• It may lead to further damage if not addressed promptly.
• Ignoring the code could result in safety issues while driving.

How to diagnose DTC C1907

To diagnose DTC C1907, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the C1907 code.
2. Inspect the wiring and connectors associated with the LR shock actuator for damage or corrosion.
3. Check the voltage at the actuator to ensure it is within the manufacturer’s specifications.
4. Test the shock actuator for proper operation using a multimeter.
5. Examine the body control module (BCM) or suspension control module for faults.

How to fix DTC C1907 step-by-step instructions

To fix DTC C1907, follow these step-by-step instructions:

1. Disconnect the vehicle’s battery to ensure safety while working on electrical components.
2. Inspect and repair any damaged wiring or connectors in the LR shock actuator circuit.
3. If the shock actuator is faulty, replace it with a new or refurbished unit.
4. Reconnect all connectors and ensure they are secure and free of corrosion.
5. Reconnect the vehicle’s battery and clear the DTC using an OBD-II scanner.
6. Test drive the vehicle to ensure the issue is resolved and the code does not reappear.

How to erase DTC C1907

To erase DTC C1907, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn on the 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 complete the process.
6. Disconnect the scanner and start the vehicle to ensure the code does not return.

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