P0C42 Possible Causes
- Faulty hybrid battery pack coolant temperature sensor
- Hybrid battery pack coolant temperature sensor harness is open or shorted
- Poor electrical connection in hybrid battery pack coolant temperature sensor circuit
What Does It Mean?
How to Fix Code P0C42
Check 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.
P0C42 Symptoms
Possible symptoms
Illuminated check engine light (or service engine soon warning light)
P0C42 Meaning
The engine control module (ECM) monitors the hybrid battery pack coolant temperature sensor. The ECM sets the OBDII code when the hybrid battery pack coolant temperature sensor does not meet factory specifications.