C1165 Ford Code - Right Rear Wheel Speed Sensor Input Circuit Failure
Quick Answer
The C1165 Ford code indicates a problem with the right rear wheel speed sensor input circuit. Common causes include Faulty right rear wheel speed sensor, Damaged or corroded sensor wiring or connectors, Issues with the ABS control module. 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 Ford indicates Right Rear Wheel Speed Sensor Input Circuit Failure.
- Common causes
- Common causes include Faulty right rear wheel speed sensor, Damaged or corroded sensor wiring or connectors, Issues with the ABS control module.
- 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.
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Code C1165 Ford Description
The C1165 Ford code indicates a problem with the right rear wheel speed sensor input circuit. This sensor is a crucial component of the vehicle's anti-lock braking system (ABS) and traction control system. The wheel speed sensor monitors the speed of the right rear wheel and sends this information to the ABS control module. If the sensor detects any discrepancies in wheel speed, the ABS system can adjust braking pressure to prevent wheel lock-up and skidding.
Common Causes of C1165 Ford
- Faulty right rear wheel speed sensor
- Damaged or corroded sensor wiring or connectors
- Issues with the ABS control module
- Electronic control unit (ECU) malfunctions
- Poor electrical connections or grounding issues
Symptoms of C1165 Ford
- ABS warning light illuminated on the dashboard
- Traction control system malfunctions or engages unexpectedly
- Increased stopping distance during braking
- Uneven braking or pulsation in the brake pedal
- Loss of stability and control during abrupt maneuvers
How to Fix C1165 Ford
- Diagnose the issue by using a diagnostic scanner to read and interpret the fault code.
- Inspect the right rear wheel speed sensor, wiring, and connectors for any visible damage or corrosion.
- Test the sensor's resistance and voltage output to determine if it is functioning correctly.
- Replace the faulty right rear wheel speed sensor if necessary, ensuring proper installation and connection.
- Clear the fault code and test drive the vehicle to verify that the issue has been resolved.
Cost to Fix C1165 Ford
The cost of repairing a right rear wheel speed sensor input circuit failure can vary depending on the extent of the damage, the specific components that need to be replaced, and labor costs. On average, the parts for this repair can range from $50 to $200, while labor costs can add another $100 to $200. Overall, the total repair cost can range from $150 to $400. It is recommended to consult with a trusted auto repair shop to get a more accurate estimate based on your vehicle's make and model, as well as local labor rates.
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Frequently Asked Questions about C1165 Ford Code
1. What does the OBDII code C1165 mean on a Ford vehicle?
C1165 indicates a Right Rear Wheel Speed Sensor Input Circuit Failure, meaning the vehicle's ABS module is not receiving a proper signal from the right rear wheel speed sensor.
2. What are the common symptoms of a C1165 code?
Symptoms may include an illuminated ABS or traction control warning light, improper ABS operation, or loss of traction control functionality.
3. What causes the C1165 code to appear?
Common causes include a faulty right rear wheel speed sensor, damaged wiring or connectors, corrosion, or a malfunctioning ABS module.
4. Can I drive with a C1165 code active?
While the vehicle may still be drivable, ABS and traction control systems may not function properly, increasing the risk of skidding or loss of control in slippery conditions.
5. How do I diagnose a C1165 code?
Start by inspecting the right rear wheel speed sensor, its wiring, and connectors for damage or corrosion. Use a multimeter to test sensor resistance and verify signal output.
6. How do I fix a C1165 code on a Ford?
Repairs may include replacing the right rear wheel speed sensor, repairing damaged wiring, cleaning corroded connectors, or, in rare cases, replacing the ABS module.
7. How much does it cost to fix a C1165 code?
The cost varies depending on the repair, but replacing a wheel speed sensor typically costs $100–$300, including parts and labor.
8. Can a dirty wheel hub cause a C1165 code?
Yes, debris or dirt on the wheel hub or sensor ring can interfere with the sensor's signal, potentially triggering the code.
9. Will clearing the C1165 code fix the issue?
Clearing the code without addressing the underlying problem will not fix the issue and the code is likely to return.
10. Can a bad ABS module cause a C1165 code?
While less common, a malfunctioning ABS module can cause communication issues with the wheel speed sensor, leading to the C1165 code.
Discuss the causes and fixes for C1165 Ford OBDII Code
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Hi,I've changed the right rear abs sensor and it hasn't helped anything! Any suggestions on what to do next?
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Could this fault be caused by either a maximum difference in tread wear of rear tires from fronts, or, from there being air in the line(s)? Several years ago I did major brake system work including every part except front rotors, one front caliper, master cylinder (replaced booster), ABS module, and most brake lines. Unfortunately, I found out that bleeding the system on a Jaquar X-Type requires a computerized bleeding machine, of which h I don't have, nor do I have the fortune it takes to have it done at shop. So I just drove it carefully, babying the pedal and manipulating the brakes whenever the ABS tried to activate due to low fluid pressure. A yeah, after I garaged the car over the winter I did some systems flushing and test drive it and noticed the ABS and engine lights were on, both due to the ABS issue. I reset them a couple times and now it seems ok, but the pedal manipulation is again necessary to reduce ABS activation, and now I want if gone. Any ideas besides a budget breaking computerized shop bleed?
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Depends how much different are the tires wear difference, but I have seen many times vehicles with difference on the tire wear setting the ABS code. So, in short, it is possible. Any other codes?
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Nope, just C1165 and C1175. Fronts are brand new, rears are just about to the wear indicators
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Since both codes are for the rear sensors, then it is possible that the difference on the tires thread wear may setting the code. The only way to find out is by connecting a scanner and reading the values from the sensors.
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