DTC P0116: Engine Coolant Temperature (ECT) Sensor Circuit Range/Performance Problem: Condition
WARNING: This page is about a different car, the 2002 Suzuki Grand Vitara. 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 running for a predetermined time. Engine coolant temperature variation is less than predetermined. MIL is illuminated when ECM (PCM) detects malfunction during 2 consecutive drive cycles. Possible causes are:
- ECT sensor malfunction.
- Thermostat malfunction.
- ECM (PCM) malfunction.