P0125 Closed Loop Temperature Not Reached

SYMPTOM
P-0125 CLOSED LOOP TEMP NOT REACHED (GAS)

WHEN MONITORED
after engine is started, for ten minutes.

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

POSSIBLE CAUSES
- ECT sensor def
- Thermostat def
- ECT sensor conn terminal damaged push out miswired
- PCM conn terminal damaged pushed out or miswired
- PCM def (coolant system)