C1138 - 4-Wheel Active Steer Circuit

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3    What is this?
Table of contents

C1138 Possible Causes

  • Faulty Anti-Lock Brake System (ABS) Actuator and Control Unit
  • 4WAS System

How do I fix code C1138?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
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Cost of diagnosing the C1138 code

Labor: 1.0

The cost of diagnosing the C1138 code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Anti-Lock Brake System (ABS) Warning Light ON
  • Engine Light ON (or Service Engine Soon Warning Light)

C1138 Description

The ABS actuator and electric unit (control unit) and the 4-Wheel Active Steer (4WAS) control unit exchange signals via the Controlled Area Network (CAN) communication line.
OBDII Code C1138 - 4-Wheel Active Steer Circuit - AutoCodes.com

More Information

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