C1207 – OBD-II DTC

OBD-II DTC C1207 – ABS Inlet Valve Coil Rear Circuit Open

DTC C1207 meaning

DTC C1207 refers to a diagnostic trouble code indicating an issue with the ABS (Anti-lock Braking System) inlet valve coil in the rear circuit. Specifically, it signifies that there is an open circuit in the rear 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 C1207 symptoms

Common symptoms associated with DTC C1207 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
• Possible traction control system issues

DTC C1207 causes

Several factors can lead to the triggering of DTC C1207, including:

• Faulty ABS inlet valve coil in the rear
• Wiring issues such as frayed or broken wires in the rear circuit
• Corrosion or poor connections in the electrical connectors
• Faulty ABS control module
• Issues with the vehicle’s power supply to the ABS system

DTC C1207 seriousness

DTC C1207 is considered a serious issue as it directly affects the vehicle’s braking system. The ABS is crucial for maintaining control during emergency braking situations. If the ABS is not functioning due to this code, it can lead to increased stopping distances and a higher risk of accidents. Therefore, it is important to address this code promptly.

How to diagnose DTC C1207

To diagnose DTC C1207, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the C1207 code.
2. Inspect the ABS inlet valve coil and wiring for visible damage or disconnections.
3. Check the electrical connectors for corrosion or loose connections.
4. Test the resistance of the inlet valve coil to ensure it is within specifications.
5. Examine the ABS control module for any faults or issues.
6. Clear the code and perform a road test to see if the code returns.

How to fix DTC C1207 step-by-step instructions

To fix DTC C1207, follow these steps:

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 all electrical connections securely.
5. Reconnect the vehicle’s battery.
6. Use an OBD-II scanner to clear the DTC and reset the ABS system.
7. Perform a road test to verify that the ABS is functioning correctly and that the code does not return.

How to erase DTC C1207

To erase DTC C1207, 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 turn off the ignition.
6. Start the vehicle and check if the ABS warning light is off and if the code has been cleared.

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