P112A – Engine Coolant Temperature Sensor 1 Maximum Temperature Implausible

P112A Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P112A Possible Causes

Low engine coolant,Faulty Thermostat,Faulty Engine Coolant Temperature Sensor,Engine Coolant Temperature Sensor harness is open or shorted,Engine Coolant Temperature Sensor circuit poor electrical connection

P112A Description

The Engine Control Module (ECM) monitors the Engine Coolant Temperature Sensor signal. The ECM sets the OBDII code when the Engine Coolant Temperature Sensor is out of factory specifications.