|
|
Symptom: P1492-AMBIENT/BATT TEMP SEN VOLTS TOO HIGH - DIESEL When Monitored and Set Condition: P1492-AMBIENT/BATT TEMP SEN VOLTS TOO HIGH - DIESEL When Monitored: With the ignition on. Set Condition: The PCM detects voltage on the ambient/battery temperature sensor signal circuit above 4.94 volts for more than 3 seconds. POSSIBLE CAUSES POWERTRAIN CONTROL MODULE (SHORTED TO VOLTAGE INTERNALLY) INTERMITTENT CONDITION AMB/BATT TEMP SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE AMBIENT/BATTERY TEMPERATURE SENSOR AMBIENT/BATTERY TEMPERATURE SENSOR SIGNAL CIRCUIT OPEN AMBIENT/BATTERY TEMPERATURE SENSOR GROUND CIRCUIT OPEN POWERTRAIN CONTROL MODULE (OPEN INTERNALLY) TEST ACTION APPLICABILITY 1 Turn the ignition on. All Yes → No → 2 Turn the ignition off. All Yes → No → 12 CHARGING |