P1145 GMC Possible Causes
- Faulty HO2S sensor, bank 1 sensor 3
- Open or short circuit in bank 1 sensor 3 HO2S wiring harness
- Poor electrical connection in bank 1 sensor 3 HO2S circuit
How to Fix GMC Code P1145?
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 engine service warning light soon)
P1145 GMC Meaning
HO2S Cross Counts Bank 1 Sensor 3 is the generic description for GMC code P1145, but the manufacturer may have a different description for your specific vehicle model and year. Currently, we do not have more information about OBDII code P1145 GMC.