P1186 GMC Possible Causes
- Faulty engine oil temperature sensor
- Engine oil temperature sensor harness is open or shorted
- Poor electrical connection in engine oil temperature sensor circuit
How is GMC P1186 Code Repaired?
Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
- Engine light on (or service engine soon warning light)
P1186 GMC Meaning
Engine Oil Temperature Sensor Circuit Performance is the generic description for GMC P1186 code, but the manufacturer may have a different description for your specific vehicle model and year. Currently, we don’t have more information about the OBDII P1186 GMC code.