AutoCodes – Generic – C1143

C1143 Code - Steering Angle Sensor Circuit

Quick Answer

The steering angle sensor is located behind the steering wheel. Common causes include Faulty Steering Angle Sensor, Steering Angle Sensor harness is open or shorted, Steering Angle 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: C1143 indicates Steering Angle Sensor Circuit.
Common causes: Common causes include Faulty Steering Angle Sensor, Steering Angle Sensor harness is open or shorted, Steering Angle 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 29,178

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 17, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1143 Description

The steering angle sensor is located behind the steering wheel. The sensor detects the rotation amount, angular velocity and direction of the steering wheel, and transmits the data to the Anti-lock Braking System (ABS) actuator and electric unit (control unit) via Control Area Network (CAN) communication.

OBDII Code C1143 - Steering Angle Sensor Circuit - AutoCodes.com — C1143 Code - Steering Angle Sensor Circuit

What does this mean?

What are the Possible Causes of the DTC C1143?

Faulty Steering Angle Sensor
Steering Angle Sensor harness is open or shorted
Steering Angle Sensor circuit poor electrical connection

How to Fix the DTC C1143?

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 C1143 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 C1143 code?

Need more information on how to fix the C1143 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1143 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C1143 Infiniti — Steering Angle Sensor Circuit
C1143 Nissan — Steering Angle Sensor Circuit

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 C1143 Code

1. What are common symptoms of OBDII code C1143 (Steering Angle Sensor Circuit)?

Symptoms may include an illuminated ABS warning light, traction control system malfunction, and potential loss of stability control.

2. What can cause OBDII code C1143 to be triggered?

Possible causes include a faulty steering angle sensor, damaged wiring or connectors in the steering angle sensor circuit, or a problem with the ABS module.

3. How can I diagnose the source of OBDII code C1143?

Diagnosis typically involves using a scan tool to read the code, checking the steering angle sensor's wiring and connections, and performing a calibration or reset procedure if necessary.

4. Can I continue driving my vehicle with OBDII code C1143 present?

It's not recommended to drive with this code active, as it may affect the proper functioning of your vehicle's stability control system and compromise safety.

5. How can I repair OBDII code C1143 (Steering Angle Sensor Circuit) myself?

Depending on the root cause, you may need to replace the steering angle sensor, repair damaged wiring or connectors, or reprogram/calibrate the sensor using a professional scan tool.

6. Will resetting the OBDII code C1143 make it go away permanently?

Resetting the code may temporarily turn off the warning light, but if the underlying issue is not fixed, the code is likely to return when the problem is detected again.

7. Is it safe to ignore OBDII code C1143 if my vehicle seems to be driving fine?

While the vehicle may seem to operate normally, ignoring this code can lead to potential safety risks and affect the performance of your vehicle's stability control system.

8. How much does it typically cost to repair OBDII code C1143?

Costs can vary depending on the exact cause of the issue, but repairs for this code may range from $100 to $500 or more, including parts and labor.

9. Can extreme weather conditions affect the occurrence of OBDII code C1143?

Yes, extreme temperatures and environmental conditions can potentially impact the performance of the steering angle sensor and trigger the code.

10. How often should the steering angle sensor be inspected to prevent OBDII code C1143 from occurring?

It's recommended to have your steering angle sensor inspected during routine maintenance checks or whenever you experience symptoms related to steering or stability control issues.