C1955 – OBD-II DTC

OBD-II DTC C1955 – Steering Angle Sensor Circuit Open

DTC C1955 meaning

DTC C1955 refers to a diagnostic trouble code indicating an open circuit in the steering angle sensor circuit. The steering angle sensor is crucial for various vehicle systems, including stability control and traction control. When the sensor detects an issue, it triggers this code to alert the driver and technicians of a potential malfunction.

DTC C1955 symptoms

Common symptoms associated with DTC C1955 may include:

• Illuminated warning lights on the dashboard, such as the ABS or traction control light.
• Unresponsive or erratic steering behavior.
• Difficulty in maintaining vehicle stability during turns.
• Increased wear on tires due to improper alignment.

DTC C1955 causes

Several factors can lead to the occurrence of DTC C1955, including:

• Faulty steering angle sensor.
• Damaged wiring or connectors in the sensor circuit.
• Corrosion or poor connections at the sensor or control module.
• Software issues within the vehicle’s control module.

DTC C1955 seriousness

DTC C1955 is considered a serious issue as it can affect vehicle handling and safety. If the steering angle sensor is not functioning correctly, it may lead to compromised stability control, increasing the risk of accidents. It is essential to address this code promptly to ensure safe vehicle operation.

How to diagnose DTC C1955

To diagnose DTC C1955, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the C1955 code.
2. Inspect the steering angle sensor and its wiring for visible damage or disconnections.
3. Check the sensor’s voltage and ground connections using a multimeter.
4. Test the steering angle sensor’s output while turning the steering wheel to ensure it is functioning correctly.
5. Review the vehicle’s service manual for specific testing procedures related to the steering angle sensor.

How to fix DTC C1955 step-by-step instructions

To fix DTC C1955, 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 in the steering angle sensor circuit.
3. If the steering angle sensor is faulty, replace it with a new one.
4. Reconnect the battery and clear the DTC using an OBD-II scanner.
5. Test drive the vehicle to ensure the issue is resolved and the warning lights do not reappear.

How to erase DTC C1955

To erase DTC C1955, 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 verify that the code does not return.

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