|
|
|
Symptom: P0117-ENGINE COOLANT TEMP SENSOR VOLTAGE TOO LOW When Monitored and Set Condition: P0117-ENGINE COOLANT TEMP SENSOR VOLTAGE TOO LOW When Monitored: With the ignition on and battery voltage greater than 10.4 volts. Set Condition: The Engine Coolant Temperature (ECT) Signal circuit voltage at the PCM goes below 0.8 of a volt for more than 3 seconds. POSSIBLE CAUSES ECT VOLTAGE BELOW 1.0 VOLT ECT SENSOR (K2) ECT SENSOR SIGNAL CIRCUIT SHORTED TO GROUND (K2) ECT SENSOR SIGNAL CIRCUIT SHORTED TO (K900) SENSOR GROUND CIRCUIT PCM TEST ACTION APPLICABILITY 1 Ignition on, engine not running. t, read DTCs and record the related Freeze Frame data. With the DRBIII t, read the ECT Sensor voltage. Is the ECT Sensor voltage below 1.0 volt? All Yes → Go To 2 No → Refer to the INTERMITTENT CONDITION Symptom (Diagnos- tic Procedure). 2 Turn the ignition off. t, read ECT voltage. Is the voltage above 1.0 volt? 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 short to ground in the (K2) ECT Sensor Signal circuit. Perform POWERTRAIN VERIFICATION TEST VER - 5. No → Go To 4 39 DRIVEABILITY - GAS |