C1255 – OBD-II DTC

OBD-II DTC C1255 – ABS Inlet Valve Coil RR Circuit Open

DTC C1255 meaning

DTC C1255 refers to a diagnostic trouble code indicating an issue with the ABS (Anti-lock Braking System) inlet valve coil for the right rear wheel. Specifically, it signifies that there is an open circuit in the inlet valve coil, which can prevent the ABS from functioning correctly. This code is part of the OBD-II system, which monitors various vehicle systems for faults.

DTC C1255 symptoms

Common symptoms associated with DTC C1255 may include:

• Illumination of the ABS warning light on the dashboard
• Loss of ABS functionality, leading to potential wheel lock-up during hard braking
• Increased stopping distances
• Unusual noises from the ABS module during operation

DTC C1255 causes

Several factors can lead to the triggering of DTC C1255, including:

• Faulty inlet valve coil for the right rear wheel
• Wiring issues, such as frayed or broken wires in the ABS circuit
• Corrosion or poor connections in the electrical connectors
• Faulty ABS control module

DTC C1255 seriousness

DTC C1255 is considered a serious issue as it directly affects the vehicle’s braking system. The inability of the ABS to function properly can lead to decreased vehicle control, especially in slippery conditions, increasing the risk of accidents. It is crucial to address this code promptly to ensure safe vehicle operation.

How to diagnose DTC C1255

To diagnose DTC C1255, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the C1255 code.
2. Inspect the ABS wiring and connectors for any visible damage or corrosion.
3. Check the resistance of the inlet valve coil using a multimeter to ensure it is within specifications.
4. Test the ABS control module for proper operation and communication with other vehicle systems.
5. Clear the code and perform a road test to see if the code reappears.

How to fix DTC C1255 step-by-step instructions

To fix DTC C1255, 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 related to the ABS inlet valve coil.
3. If the inlet valve coil is faulty, replace it with a new component.
4. Reconnect the battery and clear the DTC using an OBD-II scanner.
5. Perform a road test to verify that the ABS system is functioning correctly and that the code does not return.

How to erase DTC C1255

To erase DTC C1255, 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 “Erase Codes” or “Clear DTCs” option on the scanner.
4. Confirm the action to clear the trouble codes.
5. Disconnect the scanner and start the vehicle to ensure the code does not reappear.

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