P112C Possible Causes
- Faulty oxygen (O2) sensor, bank 1 sensor 1
- O2 sensor, bank 1 Sensor 1 harness is open or shorted
- Poor electrical connection in bank 1 sensor 1 O2 sensor circuit
How is code P112C 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
- Check engine light on (or service engine soon warning light)
P112C Meaning
The engine control module (ECM) monitors the oxygen (O2) sensor, bank 1, sensor 1. The ECM sets the OBDII code when the oxygen (O2) sensor, bank 1, sensor 1 does not meet factory specifications.