AutoCodes – Generic – C2402

C2402 Code - ABS Motor Electrical

Quick Answer

When the Anti-Lock Brake System (ABS) operates, the Hydraulic Electronic Control Unit (HECU) turns the ABS motor relay ON so that the ABS pump motor is operated. Common causes include Faulty ABS Motor, Faulty Hydraulic Electronic Control Unit (HECU), Hydraulic Electronic Control Unit (HECU) harness is open or shorted. 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
C2402 indicates ABS Motor Electrical.
Common causes
Common causes include Faulty ABS Motor, Faulty Hydraulic Electronic Control Unit (HECU), Hydraulic Electronic Control Unit (HECU) harness is open or shorted.
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 15,009
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code C2402 Description

When the Anti-Lock Brake System (ABS) operates, the Hydraulic Electronic Control Unit (HECU) turns the ABS motor relay ON so that the ABS pump motor is operated.
OBDII Code C2402 - ABS Motor Electrical - AutoCodes.com
C2402 Code - ABS Motor Electrical

What are the Possible Causes of the DTC C2402?

  • Faulty ABS Motor
  • Faulty Hydraulic Electronic Control Unit (HECU)
  • Hydraulic Electronic Control Unit (HECU) harness is open or shorted
  • Hydraulic Electronic Control Unit (HECU) circuit poor electrical connection

How to Fix the DTC C2402?

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 C2402 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 C2402 code?

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Need Help with the Code?

Get the C2402 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 C2402 Code

1. What are the common symptoms of OBDII code C2402 (ABS Motor Electrical)?

The common symptoms of OBDII code C2402 (ABS Motor Electrical) include the ABS warning light illuminating on the dashboard, loss of ABS functionality, and potential issues with the vehicle's braking system.

2. What are the possible causes of OBDII code C2402 (ABS Motor Electrical)?

Possible causes of OBDII code C2402 (ABS Motor Electrical) include a faulty ABS motor, damaged wiring or connectors in the ABS system, or issues with the ABS control module.

3. How can I diagnose OBDII code C2402 (ABS Motor Electrical)?

Diagnosing OBDII code C2402 (ABS Motor Electrical) typically involves using an OBDII scanner to retrieve the code, conducting a visual inspection of the ABS system components, and testing the ABS motor and related circuits for faults.

4. Can I still drive my vehicle with OBDII code C2402 (ABS Motor Electrical) present?

It is not recommended to drive your vehicle with OBDII code C2402 (ABS Motor Electrical) present, as it may indicate a serious issue with the ABS system that could compromise your vehicle's braking performance and safety.

5. How can I repair OBDII code C2402 (ABS Motor Electrical)?

Repairing OBDII code C2402 (ABS Motor Electrical) typically involves replacing a faulty ABS motor, repairing damaged wiring or connectors, or addressing issues with the ABS control module.

6. Are there any DIY tips for fixing OBDII code C2402 (ABS Motor Electrical)?

DIY tips for fixing OBDII code C2402 (ABS Motor Electrical) include checking and cleaning ABS system connectors, ensuring proper grounding of the ABS motor, and following manufacturer-specific repair procedures.

7. Can a malfunctioning ABS motor cause other ABS-related trouble codes to appear?

Yes, a malfunctioning ABS motor can cause other ABS-related trouble codes to appear, as issues with one component of the ABS system can affect the overall functionality and trigger additional fault codes.

8. Is OBDII code C2402 (ABS Motor Electrical) a common issue in certain vehicle makes or models?

OBDII code C2402 (ABS Motor Electrical) may be more common in certain vehicle makes or models known for ABS system issues, but it can potentially occur in any vehicle equipped with an ABS system.

9. How much does it typically cost to repair OBDII code C2402 (ABS Motor Electrical) at a professional auto repair shop?

The cost to repair OBDII code C2402 (ABS Motor Electrical) at a professional auto repair shop can vary depending on the extent of the issue, the necessary parts and labor, and the specific vehicle make and model. Costs may range from a few hundred to over a thousand dollars.

10. Can resetting the ABS system clear OBDII code C2402 (ABS Motor Electrical)?

Resetting the ABS system may temporarily clear OBDII code C2402 (ABS Motor Electrical), but if the underlying issue is not addressed and repaired, the code is likely to reappear. It is recommended to diagnose and fix the root cause of the code for a lasting solution.

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