P0125

Tests 1 - 3:

Tests 4 - 5:

SYMPTOM
P0125 CLOSED LOOP TEMPERATURE NOT REACHED

WHEN MONITORED
After engine is started, for ten minutes.

SET CONDITION
The engine temperature does not go above 18 °F within 10 minutes after the engine is started. Two trips are required to set this code.

POSSIBLE CAUSES
- ECT sensor connector terminal damaged, pushed out, or miswired
- ECT sensor
- PCM connector terminal damaged, pushed out, or miswired
- PCM (coolant system)
- Thermostat