AutoCodes – Generic – C1127

C1127 Code - Rear Right Output ABS Solenoid

Quick Answer

The control unit computes the wheel rotating speed by the signal sent from the sensor. Common causes include Faulty ABS Actuator/Electric Unit, ABS Actuator/Electric Unit harness is open or shorted, ABS Actuator/Electric Unit 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
C1127 indicates Rear Right Output ABS Solenoid.
Common causes
Common causes include Faulty ABS Actuator/Electric Unit, ABS Actuator/Electric Unit harness is open or shorted, ABS Actuator/Electric Unit 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 14,520
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 16, 2020
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Code C1127 Description

The control unit computes the wheel rotating speed by the signal sent from the sensor. Then it supplies a DC current to the actuator solenoid valve. It also controls ON-OFF operation of the solenoid valve relay and motor relay. If any electrical malfunction should be detected in the system, the control unit causes the warning lamp to turn on. In this condition, the ABS will be deactivated by the control unit, and the vehicle's brake system reverts to normal operation.
The ABS actuator and electric unit (control unit) contains: An electric motor and pump, Two relays, Eight solenoid valves ( each inlet and outlet for LH front, RH front, LH rear, RH rear), and ABS control unit.
These components control the hydraulic circuit that increases, holds or decreases hydraulic pressure to all or individual wheels. The ABS actuator and electric unit (control unit) cannot be disassembled and must be replaced as an assembly.
OBDII Code C1127 - Rear Right Output ABS Solenoid - AutoCodes.com
C1127 Code - Rear Right Output ABS Solenoid

What are the Possible Causes of the DTC C1127?

  • Faulty ABS Actuator/Electric Unit
  • ABS Actuator/Electric Unit harness is open or shorted
  • ABS Actuator/Electric Unit poor electrical connection

How to Fix the DTC C1127?

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 C1127 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 C1127 code?

Need more information on how to fix the C1127 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1127 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 C1127 Code

1. What are the common symptoms of OBDII code C1127 (Rear Right Output ABS Solenoid)?

- Common symptoms include the ABS warning light illuminating on the dashboard, poor braking performance, and potential issues with traction control.

2. What can cause the OBDII code C1127 to trigger?

- The code C1127 is typically triggered by a malfunction in the rear right output ABS solenoid, which can be caused by wiring issues, a faulty solenoid, or a problem with the ABS module.

3. How can I diagnose the source of OBDII code C1127?

- Diagnosing the source of code C1127 involves conducting a thorough inspection of the wiring connected to the rear right output ABS solenoid, testing the solenoid itself, and checking the ABS module for any faults.

4. Can I still drive my vehicle with OBDII code C1127 present?

- It is not recommended to drive the vehicle with code C1127 present, as it can affect the proper functioning of the ABS system, potentially compromising your safety on the road.

5. How can I repair OBDII code C1127 related to the rear right output ABS solenoid?

- Repairing code C1127 typically involves replacing the faulty rear right output ABS solenoid, fixing any wiring issues, or addressing problems with the ABS module as needed.

6. Are there any DIY tips for troubleshooting OBDII code C1127?

- While basic troubleshooting like checking the wiring connections and visually inspecting the solenoid can be done DIY, it is recommended to have a professional diagnose and repair the ABS system to ensure safety and accuracy.

7. Will resetting the OBDII code C1127 clear the issue temporarily?

- Resetting the code may temporarily turn off the warning light, but the underlying issue causing code C1127 will persist and likely trigger the code again until the root cause is addressed.

8. How much does it cost to repair OBDII code C1127 related to the rear right output ABS solenoid?

- The cost of repairing code C1127 can vary depending on the extent of the issue, the parts needed for replacement, and the labor rates of the repair shop, but it typically ranges from $200 to $500.

9. Can OBDII code C1127 affect other systems in the vehicle?

- While code C1127 specifically relates to the rear right output ABS solenoid, a malfunction in the ABS system can potentially impact other safety systems like traction control and stability control.

10. Is it necessary to have the ABS system recalibrated after repairing OBDII code C1127?

- It is recommended to have the ABS system recalibrated after repairing code C1127 to ensure proper functionality and to clear any stored error codes in the system.

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