Pp1A9E, P1AA2
WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
Possible cooling system failure due to the following:
- Restricted radiator air flow.
- Restricted engine coolant flow.
- Faulty thermostat.
- Faulty engine water pump.
- Inoperative SGCM water pump.