Oil Temperature Circuit Short To Ground
Table of contents
B1542 GMC Possible Causes
- Faulty Oil Temperature Sensor
- Oil Temperature Sensor harness is open or shorted
- Oil Temperature Sensor circuit poor electrical connection
- Faulty Instrument Panel Cluster (IPC)
How do I fix code B1542 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.
Cost of diagnosing the B1542 GMC code
The cost of diagnosing the B1542 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)
B1542 GMC Description
The Instrument Panel Cluster (IPC) supplies a 5-volt reference signal to Oil Temperature Sensor. When engine oil is cold, sensor resistance will decrease, and IPC reference voltage level will drop. IPC measures reference voltage change and displays the calculated value on the oil pressure gauge.