P0125

Test 1:

Test 2 - Test 3:

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

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

SET CONDITION
The engine temperature does not go above -10° C (15° F). Failure time depends on start-up coolant temperature and ambient temperature. (i.e. 2 minutes for a start temp of -10° C (15° F) or up to 10 minutes for a vehicle with a start-up temp of -28° C (5° F). Two Trip Fault.

POSSIBLE CAUSES
- Low coolant level
- Thermostat operation
- ECT sensor