P0125

Test 1:

Test 2 - 3:

SYMPTOM
P0125-INSUFFICIENT COOLANT TEMP FOR CLOSED-LOOP FUEL CONTROL

WHEN MONITORED
With battery voltage greater than 10.4 volts, after engine is started.

SET CONDITION
The engine temperature does not go above 15 °C (60 °F). Failure time depends on start-up coolant temperature and ambient temperature. (i.e. 2 minutes for a start temp of 10 °C (50 °F) or up to 5 minutes for a vehicle with a start-up temp of -7 °C (-21 °F). Two Trip Fault.

POSSIBLE CAUSES
- Low coolant level
- Thermostat operation
- Engine coolant temperature sensor