DTC P0125: Insufficient Coolant Temperature For Closed Loop Fuel Control: Condition
WARNING: This page is about a different car, the 2002 Suzuki Esteem. However, it is still accessible from the selected car via links, so may be relevant.
DTC is set when engine coolant temperature fails to reach predetermined level after vehicle has been driven. Engine coolant temperature is less than specified. This circuit is monitored once per drive cycle. MIL is illuminated when Engine Control Module (ECM) detects malfunction during 2 consecutive drive cycles. Possible causes are:
- High circuit resistance.
- ECT sensor malfunction.
- Thermostat malfunction.
- ECM malfunction.