AutoCodes – Generic – C1229

C1229 Code - Rear Anti-Lock Brake Sensor

Quick Answer

The Anti-Lock Brake System (ABS) Actuator And Electric Unit (Control Unit) monitors the Rear Anti-Lock Brake Sensor. Common causes include Faulty Rear ABS Sensor, Rear ABS Sensor harness is open or shorted, Rear ABS 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
C1229 indicates Rear Anti-Lock Brake Sensor.
Common causes
Common causes include Faulty Rear ABS Sensor, Rear ABS Sensor harness is open or shorted, Rear ABS 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 20,019
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 27, 2020
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Code C1229 Description

The Anti-Lock Brake System (ABS) Actuator And Electric Unit (Control Unit) monitors the Rear Anti-Lock Brake Sensor. The ABS Actuator And Electric Unit sets the OBDII code when the Rear Anti-Lock Brake Sensor is not to factory specifications.
OBDII Code C1229 - Rear Anti-Lock Brake Sensor - AutoCodes.com
C1229 Code - Rear Anti-Lock Brake Sensor

What are the Possible Causes of the DTC C1229?

  • Faulty Rear ABS Sensor
  • Rear ABS Sensor harness is open or shorted
  • Rear ABS Sensor circuit poor electrical connection
  • Faulty Wheel Speed Sensor
  • Wheel bearing

How to Fix the DTC C1229?

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 C1229 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 C1229 code?

Need more information on how to fix the C1229 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1229 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

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 C1229 Code

1. What are the common symptoms of OBDII code C1229 related to the Rear Anti-Lock Brake Sensor?

The common symptoms include the ABS warning light illuminated on the dashboard, poor brake performance, and possible traction control issues.

2. What could be the potential causes of OBDII code C1229 for the Rear Anti-Lock Brake Sensor?

Possible causes may include a faulty rear ABS sensor, damaged wiring or connectors, sensor alignment issues, or a malfunctioning ABS control module.

3. How can I diagnose the OBDII code C1229 for the Rear Anti-Lock Brake Sensor?

You can diagnose this code by using an OBDII scanner to retrieve the specific fault code, visually inspecting the rear ABS sensor and its wiring, conducting resistance tests on the sensor, and checking for any signs of physical damage.

4. What are some repair tips for addressing OBDII code C1229 associated with the Rear Anti-Lock Brake Sensor?

Repair tips may include cleaning the sensor and its mounting area, replacing a faulty sensor, repairing damaged wiring, ensuring proper sensor alignment, and resetting the ABS system after repairs.

5. Can driving with OBDII code C1229 related to the Rear Anti-Lock Brake Sensor pose any risks?

Continuing to drive with this code may compromise the vehicle's braking and traction control systems, potentially leading to unsafe driving conditions. It is advisable to address the issue promptly.

6. Is it possible to reset OBDII code C1229 for the Rear Anti-Lock Brake Sensor without fixing the underlying problem?

While you can clear the code temporarily, it will likely reappear until the root cause of the issue is addressed. Resetting the code without fixing the problem may lead to ongoing ABS malfunctions.

7. How critical is it to fix OBDII code C1229 pertaining to the Rear Anti-Lock Brake Sensor promptly?

It is crucial to address this code promptly as it directly affects the vehicle's ABS functionality, which is essential for safe braking and traction control. Delaying repairs can compromise driving safety.

8. Can weather conditions or road debris impact the Rear Anti-Lock Brake Sensor and trigger OBDII code C1229?

Yes, harsh weather conditions, road debris, or improper maintenance can affect the sensor's performance, leading to the triggering of OBDII code C1229 for the Rear Anti-Lock Brake Sensor.

9. Are there any DIY methods to troubleshoot OBDII code C1229 related to the Rear Anti-Lock Brake Sensor?

While basic inspections like checking for loose connections or visible damage can be done DIY, diagnosing and repairing complex issues related to the ABS system may require professional expertise and specialized tools.

10. How much can I expect to pay for repairing OBDII code C1229 concerning the Rear Anti-Lock Brake Sensor?

Repair costs can vary based on the specific issue, labor rates, and parts needed. It is advisable to consult a mechanic for an accurate diagnosis and cost estimate before proceeding with repairs.

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