C1165 Code - Right Rear Wheel Speed Sensor Input Circuit Failure
Quick Answer
The ABS module receives wheel speed readings from each wheel speed sensor and processes this information to determine if an ABS event is necessary. Common causes include Faulty Right Rear Wheel Speed Sensor, Right Rear Wheel Speed Sensor harness is open or shorted, Right Rear Wheel Speed Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- C1165 indicates Right Rear Wheel Speed Sensor Input Circuit Failure.
- Common causes
- Common causes include Faulty Right Rear Wheel Speed Sensor, Right Rear Wheel Speed Sensor harness is open or shorted, Right Rear Wheel Speed Sensor circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code C1165 Description
The active wheel speed sensor generates a signal that is sent to the ABS module. The wheel speed sensor circuitry connects to the ABS module through 2 wires and a connector at each wheel speed sensor. When the ignition is turned to the RUN position, the ABS module carries out a self-test by sending a reference voltage to all of the wheel speed sensors through their circuitry to determine if they are functional.
The ABS module continuously monitors and compares the rotational speed of each wheel and when it detects an impending wheel lock, modulates brake pressure to the appropriate brake caliper. This is accomplished by triggering the hydraulic control unit (HCU) to open and close the appropriate solenoid valves. Once the affected wheel returns to normal speed, the ABS module returns the solenoid valves to their normal position and normal (base) braking resumes.
What are the Possible Causes of the DTC C1165?
- Faulty Right Rear Wheel Speed Sensor
- Right Rear Wheel Speed Sensor harness is open or shorted
- Right Rear Wheel Speed Sensor circuit poor electrical connection
How to Fix the DTC C1165?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the C1165 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Information for Specific Makes
- C1165 Ford — Right Rear Wheel Speed Sensor Input Circuit Failure
- C1165 Infiniti — Cut Valve 2
- C1165 Lincoln — Right Rear Wheel Speed Sensor Input Circuit Failure
- C1165 Mercury — Right Rear Wheel Speed Sensor Input Circuit Failure
- C1165 Nissan — Cut Valve 2
Frequently Asked Questions about C1165 Code
1. What are common symptoms of OBDII code C1165 (Right Rear Wheel Speed Sensor Input Circuit Failure)?
- Common symptoms include ABS warning light illuminated on the dashboard, traction control system malfunction, and possible loss of anti-lock brake system functionality.
2. What are the potential causes of OBDII code C1165?
- The code C1165 can be triggered by a faulty right rear wheel speed sensor, damaged wiring or connectors in the circuit, or issues with the ABS control module.
3. How can I diagnose the cause of OBDII code C1165?
- To diagnose the cause of C1165, use a diagnostic scanner to read the code, inspect the right rear wheel speed sensor and its wiring for damage, and perform a continuity test on the sensor circuit.
4. Can I still drive my vehicle with OBDII code C1165 present?
- It is not recommended to drive the vehicle with code C1165 present as it may affect the proper functioning of the anti-lock brake system, leading to potential safety risks.
5. How can I repair OBDII code C1165 (Right Rear Wheel Speed Sensor Input Circuit Failure)?
- Repair options include replacing the right rear wheel speed sensor, repairing damaged wiring or connectors in the circuit, or addressing any issues with the ABS control module.
6. Are there any DIY tips for troubleshooting OBDII code C1165?
- DIY tips include checking the wiring and connectors for visible damage, ensuring proper connection of the wheel speed sensor, and using a multimeter to test the sensor circuit.
7. Can a bad wheel bearing cause OBDII code C1165?
- A bad wheel bearing can indirectly cause OBDII code C1165 by affecting the performance of the wheel speed sensor. It is advisable to inspect both components when troubleshooting the issue.
8. How much does it typically cost to repair OBDII code C1165 at a mechanic or dealership?
- The cost of repairing OBDII code C1165 can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor at a mechanic or dealership.
9. Will resetting the OBDII code C1165 clear the issue permanently?
- Resetting the code may temporarily clear the warning light, but if the underlying issue causing C1165 is not addressed, the code is likely to reappear. It is important to diagnose and repair the root cause.
10. Is it safe to ignore OBDII code C1165 if the vehicle is driving fine?
- Ignoring OBDII code C1165 is not recommended as it may lead to safety risks, especially in emergency braking situations. It is advisable to address any ABS-related issues promptly.
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