C1704 – OBD-II DTC

OBD-II DTC C1704 – Right Rear Sensor Circuit Fault

DTC C1704 meaning

DTC C1704 refers to a fault in the right rear sensor circuit of a vehicle’s system, typically related to the anti-lock braking system (ABS) or traction control system. This code indicates that the vehicle’s onboard diagnostic system has detected an issue with the signal or performance of the right rear wheel speed sensor.

DTC C1704 symptoms

Common symptoms associated with DTC C1704 may include:

• Illumination of the ABS warning light on the dashboard
• Inconsistent or erratic ABS operation
• Loss of traction control functionality
• Increased stopping distances
• Unusual noises from the braking system

DTC C1704 causes

Several factors can lead to the triggering of DTC C1704, including:

• Faulty right rear wheel speed sensor
• Damaged wiring or connectors in the sensor circuit
• Corrosion or dirt affecting the sensor’s performance
• Issues with the ABS control module
• Faulty brake components that interfere with sensor operation

DTC C1704 seriousness

DTC C1704 is considered a serious issue as it can affect the vehicle’s braking performance and stability. If left unaddressed, it may lead to:

• Increased risk of skidding or loss of control during braking
• Potential for longer stopping distances
• Inability to utilize ABS and traction control features

How to diagnose DTC C1704

To diagnose DTC C1704, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the C1704 code.
2. Inspect the right rear wheel speed sensor for physical damage or disconnection.
3. Check the wiring and connectors for signs of wear, corrosion, or shorts.
4. Test the sensor’s resistance and voltage output according to manufacturer specifications.
5. Examine the ABS control module for any faults or error codes.

How to fix DTC C1704 step-by-step instructions

To fix DTC C1704, 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 or replace the right rear wheel speed sensor if it is faulty.
3. Repair any damaged wiring or connectors in the sensor circuit.
4. Clean any corrosion or dirt from the sensor and its mounting area.
5. Reconnect the battery and clear the DTC using an OBD-II scanner.
6. Test drive the vehicle to ensure the ABS and traction control systems are functioning properly.

How to erase DTC C1704

To erase DTC C1704, 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 from the vehicle’s memory.
5. Disconnect the scanner and start the vehicle to verify that the code does not reappear.

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