C1701 – OBD-II DTC

OBD-II DTC C1701 – Left Rear Sensor Circuit Fault

DTC C1701 meaning

DTC C1701 refers to a fault in the left rear sensor circuit, which is part of the vehicle’s stability control and anti-lock braking systems. This code indicates that the vehicle’s onboard diagnostic system has detected an issue with the left rear wheel speed sensor or its associated wiring and connectors. The left rear sensor plays a crucial role in monitoring wheel speed and providing data to the vehicle’s control modules for optimal performance and safety.

DTC C1701 symptoms

Common symptoms associated with DTC C1701 may include:

• Illumination of the check engine light or ABS warning light
• Inconsistent or erratic ABS operation
• Loss of traction control functionality
• Unusual braking behavior, such as locking up or skidding
• Increased stopping distances

DTC C1701 causes

Several factors can lead to the triggering of DTC C1701, including:

• Faulty left rear wheel speed sensor
• Damaged or frayed wiring in the sensor circuit
• Corroded or loose electrical connectors
• Issues with the vehicle’s ABS control module
• Mechanical problems with the brake system or wheel assembly

DTC C1701 seriousness

DTC C1701 is considered a moderate to serious issue. While the vehicle may still be operable, the malfunction of the left rear sensor can compromise the effectiveness of the ABS and traction control systems. This can lead to decreased vehicle stability and increased risk of accidents, especially in adverse driving conditions. It is advisable to address this code promptly to ensure safe vehicle operation.

How to diagnose DTC C1701

To diagnose DTC C1701, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the C1701 code.
2. Inspect the left rear wheel speed sensor for physical damage or disconnection.
3. Check the wiring and connectors for signs of wear, corrosion, or loose connections.
4. Test the resistance and voltage of the left rear sensor using a multimeter.
5. Examine the ABS control module for any faults or issues.
6. Clear the code and perform a test drive to see if the code reappears.

How to fix DTC C1701 step-by-step instructions

To fix DTC C1701, follow these steps:

1. Disconnect the vehicle’s battery to ensure safety while working on the electrical system.
2. Inspect and replace the left rear wheel speed sensor if it is found to be faulty.
3. Repair or replace any damaged wiring or connectors in the sensor circuit.
4. Reconnect the battery and clear the DTC using an OBD-II scanner.
5. Perform a test drive to verify that the issue has been resolved and the code does not return.

How to erase DTC C1701

To erase DTC C1701, 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 codes from the vehicle’s memory.
5. Disconnect the scanner and perform a test drive to ensure the code does not reappear.

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