Possible causes – Deterrent key not programmed to vheicle– Faulty Deterrent key– Fualty ignition switch– Poor electrical connection for Deterrent circuit components Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– No or hard engine start situation P1648

Possible causes – Deterrent key not programmed to vheicle– Faulty Deterrent key– Fualty ignition switch– Poor electrical connection for Deterrent circuit components Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– No or hard engine start situation P1677

Possible causes – Deterrent key not programmed to vheicle– Faulty Deterrent key– Fualty ignition switch– Poor electrical connection for Deterrent circuit components Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– No or hard engine start situation P1678

Possible causes – Deterrent key not programmed to vheicle– Faulty Deterrent key– Fualty ignition switch– Poor electrical connection for Deterrent circuit components Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– No or hard engine start situation P1679

Possible causes – Engine Control Module (ECM) programm error– Wrong Engine Control Module (ECM)– Faulty Engine Control Module (ECM) Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1680 SATURN Description The Engine Control Module (ECM) program does

Possible causes – Engine mechanical condition-Valve timing off– Cam sensor or crank sensor are loose on their mounting– Faulty camshaft position sensor– Faulty crankshaft position sensor Tech notes If this DTC started after recent internal engine repairs, inspect for proper

Possible causes – Failed HO2S – Ignition problem – Fuel injection problem – Engine mechanical condition Tech notes There is a factory service bulletin for the following Saturn models: 2000-2008 Saturn Models2000-2008 Saturn Factory Service Bulletin OBDII Code P1174 Symptoms

Possible causes – Faulty Accelerator Pedal Position Sensor– Accelerator Pedal Position Sensor harness is open or shorted– Accelerator Pedal Position Sensor circuit poor electrical connection When is the code detected? The Powertrain Control Module (PCM) detects that the difference between

Possible causes – Faulty Accelerator Pedal Position Sensor– Accelerator Pedal Position Sensor harness is open or shorted– Accelerator Pedal Position Sensor circuit poor electrical connection– Faulty Electric Throttle Control Actuator When is the code detected? The Engine Control Module (ECM)

Possible causes – Faulty AIR Pressure Sensor– AIR Pressure Sensor harness is open or shorted– AIR Pressure Sensor circuit poor electrical connection When is the code detected? The AIR Pressure Sensor is reporting a pressure greater than or less than

Possible causes – Faulty AIR Pressure Sensor– AIR Pressure Sensor harness is open or shorted– AIR Pressure Sensor circuit poor electrical connection When is the code detected? The AIR Pressure Sensor is reporting a pressure greater than or less than

Possible causes – Faulty AIR Pressure Sensor– AIR Pressure Sensor harness is open or shorted– AIR Pressure Sensor circuit poor electrical connection When is the code detected? The PCM has detected a high voltage condition on the AIR Pressure Sensor

Possible causes – Faulty AIR Pressure Sensor– AIR Pressure Sensor harness is open or shorted– AIR Pressure Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P2432 SATURN Description The Secondary Air Injection

Possible causes – Faulty Auxiliary Coolant Pump Relay– Blocked pump control passage– Faulty Auxiliary Coolant Pump– Auxiliary Coolant Pump harness is open or shorted– Auxiliary Coolant Pump circuit poor electrical connection When is the code detected? The Engine Control Module

Possible causes – Faulty Control Solenoid Valve Assembly– Control Solenoid Valve Assembly harness is open or shorted– Control Solenoid Valve Assembly circuit poor electrical connection When is the code detected? The Powertrain Control Module (PCM) commanded the Torque Converter Clutch

Possible causes – Faulty Cooling Fan Relay– Cooling Fan Relay harness is open or shorted– Cooling Fan Relay circuit poor electrical component Symptoms – Engine Light ON (or Service Engine Soon Warning Light) – Cooling Fan not working P1641 SATURN

Possible causes – Faulty Cooling Fan Relay– Cooling Fan Relay harness is open or shorted– Cooling Fan Relay circuit poor electrical component Symptoms – Engine Light ON (or Service Engine Soon Warning Light) – Cooling Fan not working P1642 SATURN

Possible causes – Faulty electric throttle control actuator (TP sensor 1 and 2)– Throttle Position Sensor harness is open or shorted– Throttle Position Sensor circuit poor connection– Faulty accelerator pedal position sensor Symptoms – Engine Light ON (or Service Engine

Possible causes – Faulty Engine Coolant Temperature (ECT) sensor– Low engine coolant level– Engine Coolant Temperature (ECT) sensor harness is open or shorted– Engine Coolant Temperature (ECT) sensor electrical circuit poor connection– Faulty engine coolant thermostat Symptoms – Engine Light

Possible causes – Faulty Engine Coolant Temperature (ECT) sensor– Low engine coolant level– Engine Coolant Temperature (ECT) sensor harness is open or shorted– Engine Coolant Temperature (ECT) sensor electrical circuit poor connection– Faulty engine coolant thermostat Symptoms – Engine Light