P1132 GMC Possible Causes
- Faulty front oxygen sensor
- Front oxygen sensor harness is open or shorted
- Poor electrical connection in the front oxygen sensor circuit
How is P1132 GMC Code Repaired?
Start by checking the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
- Check engine light on (or service engine soon warning light)
P1132 GMC Meaning
A heated exhaust oxygen sensor (HO2S) indicating rich at the end of a test attempts to correct a too lean condition. The test fails when the fuel control system no longer detects switching for a calibrated duration.