AutoCodes – Generic – C12E8

C12E8 Code - ABS Pump Motor Stuck

Quick Answer

The ABS Pump Motor is a bi-directional motor and is an internal part of the Brake Pressure Modulator. Common causes include Faulty Brake Pressure Modulator, Brake Pressure Modulator harness is open or shorted, Brake Pressure Modulator 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: C12E8 indicates ABS Pump Motor Stuck.
Common causes: Common causes include Faulty Brake Pressure Modulator, Brake Pressure Modulator harness is open or shorted, Brake Pressure Modulator 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 1,264

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 Sep 05, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C12E8 Description

The ABS Pump Motor is a bi-directional motor and is an internal part of the Brake Pressure Modulator. There are three solid state relays in the electronic Brake Pressure Modulator that operate the pump. The ABS Pump Motor runs every few brake stops in order to fill the high pressure accumulator with brake fluid. The Anti-Lock Brake System (ABS) Module monitors the ABS Pump Motor. The ABS Module sets the OBDII code when the ABS Pump Motor is not to factory specifications.

OBDII Code C12E8 - ABS Pump Motor Stuck - AutoCodes.com — C12E8 Code - ABS Pump Motor Stuck

What does this mean?

What are the Possible Causes of the DTC C12E8?

Faulty Brake Pressure Modulator
Brake Pressure Modulator harness is open or shorted
Brake Pressure Modulator circuit poor electrical connection

How to Fix the DTC C12E8?

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 C12E8 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 C12E8 code?

Need more information on how to fix the C12E8 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C12E8 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C12E8 Buick — ABS Pump Motor Stuck
C12E8 Cadillac — ABS Pump Motor Stuck
C12E8 Chevrolet — ABS Pump Motor Stuck
C12E8 GMC — ABS Pump Motor Stuck

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 C12E8 Code

1. What are the common symptoms of OBDII code C12E8 (ABS Pump Motor Stuck)?

- Common symptoms include the ABS warning light staying on, loss of ABS functionality, and unusual noises coming from the ABS pump area.

2. What could cause the ABS pump motor to get stuck and trigger code C12E8?

- Common causes include a malfunctioning ABS pump motor, a faulty ABS control module, wiring issues, or a problem with the ABS hydraulic unit.

3. How serious is OBDII code C12E8 (ABS Pump Motor Stuck)?

- This code indicates a problem with the ABS system, which is a crucial safety feature. It is recommended to address this issue promptly to ensure proper braking performance.

4. Can I still drive my vehicle with OBDII code C12E8 (ABS Pump Motor Stuck)?

- While you can technically drive the vehicle with this code, it is not advisable as the ABS system may not function properly, increasing the risk of skidding during emergency braking situations.

5. How can I diagnose the issue causing OBDII code C12E8 (ABS Pump Motor Stuck)?

- Diagnosing this code typically requires a scan tool to retrieve ABS system codes, along with a visual inspection of the ABS components for any visible damage or wiring issues.

6. Is it possible to reset OBDII code C12E8 (ABS Pump Motor Stuck) by clearing the fault codes?

- Clearing the fault codes may temporarily turn off the warning light, but if the underlying issue causing the code is not addressed, the code is likely to return.

7. What are some repair tips for resolving OBDII code C12E8 (ABS Pump Motor Stuck)?

- Repair tips include checking the ABS pump motor for proper operation, inspecting the ABS control module and wiring for faults, and ensuring the ABS hydraulic unit is functioning correctly.

8. Can water or moisture cause OBDII code C12E8 (ABS Pump Motor Stuck)?

- Yes, water or moisture ingress into the ABS components can lead to corrosion or electrical issues, potentially causing the ABS pump motor to get stuck.

9. How much does it typically cost to repair OBDII code C12E8 (ABS Pump Motor Stuck)?

- Repair costs can vary depending on the exact cause of the issue, but they may range from a few hundred to over a thousand dollars, including parts and labor.

10. Can a DIY enthusiast fix OBDII code C12E8 (ABS Pump Motor Stuck) at home?

- While some basic checks like inspecting wiring connections can be done at home, diagnosing and repairing the ABS pump motor or control module may require specialized tools and expertise best handled by a professional mechanic.