AutoCodes – Generic – C1175

C1175 Code - Left 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 Left Rear Wheel Speed Sensor, Left Rear Wheel Speed Sensor harness is open or shorted, Left 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: C1175 indicates Left Rear Wheel Speed Sensor Input Circuit Failure.
Common causes: Common causes include Faulty Left Rear Wheel Speed Sensor, Left Rear Wheel Speed Sensor harness is open or shorted, Left 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.

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Code Popularity 30,623

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 20, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1175 Description

The ABS module receives wheel speed readings from each wheel speed sensor and processes this information to determine if an ABS event is necessary. The wheel speed sensor detects the magnetic field of the sensor ring as it passes the face of the active wheel speed sensor.
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.

OBDII Code C1175 - Left Rear Wheel Speed Sensor Input Circuit Failure - AutoCodes.com — C1175 Code - Left Rear Wheel Speed Sensor Input Circuit Failure

What does this mean?

What are the Possible Causes of the DTC C1175?

Faulty Left Rear Wheel Speed Sensor
Left Rear Wheel Speed Sensor harness is open or shorted
Left Rear Wheel Speed Sensor circuit poor electrical connection

How to Fix the DTC C1175?

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 C1175 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.

Need more information about the C1175 code?

Need more information on how to fix the C1175 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1175 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C1175 Ford — Left Rear Wheel Speed Sensor Input Circuit Failure
C1175 Infiniti — Control Area Network-Local Arear Network Converter Control Unit
C1175 Jaguar — Left Rear Wheel Speed Sensor Input Circuit Failure
C1175 Lincoln — Left Rear Wheel Speed Sensor Input Circuit Failure
C1175 Mercedes-Benz — Steering Angle Sensor Steering Angle Not Initialize
C1175 Mercury — Left Rear Wheel Speed Sensor Input Circuit Failure
C1175 Nissan — Control Area Network-Local Arear Network Converter Control Unit

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about C1175 Code

1. What are the common symptoms of OBDII code C1175 (Left Rear Wheel Speed Sensor Input Circuit Failure)?

- Common symptoms include the ABS warning light illuminating on the dashboard, traction control system malfunctions, and potential loss of traction control.

2. What are the possible causes of OBDII code C1175?

- Possible causes include a faulty left rear wheel speed sensor, damaged wiring or connectors in the sensor circuit, or a problem with the ABS module.

3. How can I diagnose the issue causing OBDII code C1175?

- Diagnosing the issue involves inspecting the left rear wheel speed sensor and its wiring for damage, testing the sensor's resistance, and using a scan tool to check for trouble codes in the ABS module.

4. Can I drive my vehicle with OBDII code C1175?

- It is not recommended to drive your vehicle with code C1175 present, as it can affect the proper functioning of the ABS and traction control systems, compromising safety.

5. How can I repair OBDII code C1175?

- Repairing code C1175 typically involves replacing the left rear wheel speed sensor if it is faulty, repairing any damaged wiring or connectors, or addressing any issues with the ABS module.

6. Is it possible to reset OBDII code C1175 once the issue is fixed?

- Yes, after repairing the underlying issue causing code C1175, you can use an OBDII scan tool to clear the code and reset the ABS system.

7. How much does it cost to fix OBDII code C1175?

- The cost of fixing code C1175 can vary depending on the cause of the issue, the cost of parts needed for repair, and labor charges. It is recommended to get a diagnostic inspection to determine the exact cost.

8. Are there any DIY repair tips for OBDII code C1175?

- DIY repair tips may include checking the sensor and wiring for visible damage, ensuring proper connections, and using a multimeter to test the sensor's resistance before considering a replacement.

9. Can a mechanic help with diagnosing and fixing OBDII code C1175?

- Yes, a qualified mechanic can assist in diagnosing the issue causing code C1175 using specialized tools and expertise, as well as performing the necessary repairs to resolve the problem.

10. What happens if OBDII code C1175 is ignored?

- Ignoring code C1175 can lead to continued issues with the ABS and traction control systems, potentially compromising the vehicle's safety and performance. It is essential to address the problem promptly.