P0125

Tests 1 - 2:

Tests 3 - 5:

SYMPTOM
P0125 - CLOSED LOOP TEMPERATURE NOT REACHED

WHEN MONITORED
After engine is started, for 10 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
- Thermostat
- ECT sensor connector terminal damaged, pushed out, miswired
- PCM connector terminal damaged, pushed out, miswired
- PCM (coolant system)