4-Wheel Active Steer Circuit
Table of contents
C1138 INFINITI Possible Causes
- Faulty Anti-Lock Brake System (ABS) Actuator and Control Unit
- 4WAS System
How do I fix code C1138 INFINITI?
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.
Cost of diagnosing the C1138 INFINITI code
The cost of diagnosing the C1138 INFINITI 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 INFINITI 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.