DTC 14

Code 14 - Coolant Sensor Circuit Shorted:

Wiring Diagram for Code 14 - Coolant Sensor Circuit Shorted:

CODE 14 - COOLANT SENSOR CIRCUIT SHORTED


Circuit Description:

Code 14 means the ECM has seen low resistance of the coolant sensor circuit as follows:

^ Low resistance (high engine temperature)

^ Or low voltage (at ECM Terminal "3")

^ For a time longer than specified


Test Description:

1. This step determines whether the fault is at the coolant sensor or elsewhere in the circuit. Normal voltage should be about 5 volts in the circuit.


2. This step checks for a grounded circuit between the ECM and the coolant sensor. Test light to B+ should be "OFF" in an ungrounded circuit. The coolant sensor is not connected during the test.