P0A05 Possible Causes
- Faulty cooling pump “A”
- Coolant pump wiring harness is open or short-circuited
- Poor electrical connection in the coolant pump circuit
What Does It Mean?
First Diagnose Code P0A05
Check the “possible causes” listed above. Visually inspect the wiring harness and associated connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
P0A05 Possible Symptoms
Check engine light illuminated (or service engine soon warning light)
P0A05 Description
The Engine Control Module (ECM) monitors the engine electronics cooling pump. The ECM sets the OBDII code when the engine electronics cooling pump does not meet factory specifications.