Inverted Run/Start Power Relay Circuit
Table of contents
B144C GMC Possible Causes
- Faulty Inverted Run/Start Power Relay
- Inverted Run/Start Power Relay harness is open or shorted
- Inverted Run/Start Power Relay circuit poor electrical connection
- Faulty Steering Column Lock Module
How do I fix code B144C GMC?
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.
Tech Notes
- B144C 01 Inverted Run/Start Power Relay Circuit Short to Battery
- B144C 06 Inverted Run/Start Power Relay Circuit Low Voltage/Open
Cost of diagnosing the B144C GMC code
The cost of diagnosing the B144C GMC 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)
B144C GMC Description
The vehicle theft deterrent subsystem provides the capability to lock or unlock the steering column electrically. The Steering Column Lock Module is allowed to unlock when power mode transitions to a non off power mode and an authenticated driver identification device is present. Once the column is unlocked, a crank request can be allowed.