|
|
Symptom: P0117-ENGINE COOLANT TEMPERATURE SENSOR LOW When Monitored and Set Condition: P0117-ENGINE COOLANT TEMPERATURE SENSOR LOW When Monitored: With the ignition on. Battery voltage greater than 10 volts. Set Condition: The Engine Coolant Temperature (ECT) sensor circuit voltage at the PCM is less than 0.0782 of a volt. One Trip Fault. POSSIBLE CAUSES ECT SENSOR VOLTAGE BELOW 1.0 VOLTS ECT SENSOR INTERNAL FAILURE (K2) ECT SIGNAL SHORTED TO GROUND (K2) ECT SIGNAL SHORTED TO (K4) SENSOR GROUND CIRCUIT PCM TEST ACTION APPLICABILITY 1 Ignition on, engine not running. t, read the ECT Sensor voltage. Is the voltage below 1.0 volt? All Yes → Go To 2 No → Refer to the INTERMITTENT CONDITION symptom in the Driveability category. 2 Turn the ignition off. t, read ECT Sensor voltage. Is the voltage between 4.8 and 5.2 volts? All Yes → Replace the ECT Sensor. Perform POWERTRAIN VERIFICATION TEST VER - 5. No → Go To 3 3 Turn the ignition off. All Yes → Repair the ground shorted to the (K2) ECT Signal circuit. Perform POWERTRAIN VERIFICATION TEST VER - 5. No → Go To 4 69 DRIVEABILITY - NGC |