Idle Air Control Actuator 1 Self-Test Fault
Table of contents
P158C BMW Possible Causes
- Faulty Idle Air Control Actuator
- Idle Air Control Actuator harness is open or shorted
- Idle Air Control Actuator circuit poor electrical connection
How do I fix code P158C BMW?
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 P158C BMW code
The cost of diagnosing the P158C BMW 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
- Engine Light ON (or Service Engine Soon Warning Light)
P158C BMW Description
The Engine Control Module (ECM) monitors the Idle Air Control Actuator 1. The ECM sets the OBDII code when the Idle Air Control Actuator 1 is not to factory specifications.