DTC 14

- Chart - Code 14 Shorted Coolant Sensor Circuit.:

- Wiring Diagram for Code 14 Shorted Coolant Sensor Circuit:

CODE 14, COOLANT SENSOR SHORTED

CIRCUIT DESCRIPTION
Code 14 means the ECM has seen low resistance of the coolant sensor circuit as follows:
a. Low resistance (high engine temperature)
b. Or low voltage (at ECM Terminal "3")
c. For a time longer than specified

CHART 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.