Possible causes – Faulty Camshaft timing control motor bank 2– Camshaft position sensor harness is open or shorted– Camshaft position sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

Possible causes – Faulty electric throttle control actuator– Throttle plate sticking due to carbon build-up– Electric throttle control actuator harness is open or shorted– Electric throttle control actuator poor electrical circuit connection– Engine Control Module When is the code detected?

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

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

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

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

Possible causes – Faulty Input Speed Sensor– Input Speed Sensor harness is open or shorted– Input Speed Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

Possible causes – Faulty Oxygen Air/Fuel Sensor Bank 1 Sensor 1– Oxygen Air/Fuel Sensor Bank 1 Sensor 1 harness is open or shorted– Oxygen Air/Fuel Sensor Bank 1 Sensor 1 circuit poor electrical connection– Faulty EFI Relay– Faulty Injector– Faulty

Possible causes – Faulty Oxygen Air/Fuel Sensor Bank 1 Sensor 1– Oxygen Air/Fuel Sensor Bank 1 Sensor 1 harness is open or shorted– Oxygen Air/Fuel Sensor Bank 1 Sensor 1 circuit poor electrical connection– Faulty EFI Relay– Faulty Injector– Faulty

Possible causes – Faulty pressure control solenoid valve ‘E’– Pressure control solenoid valve ‘E’ harness is open or shorted– Pressure control solenoid valve ‘E’ circuit poor electrical connection– Faulty Engine Control Module (ECM)– Low transmission fluid level– Dirty transmission fluid

Possible causes – Faulty pressure control solenoid valve ‘E’– Pressure control solenoid valve ‘E’ harness is open or shorted– Pressure control solenoid valve ‘E’ circuit poor electrical connection– Faulty Engine Control Module (ECM)– Low transmission fluid level– Dirty transmission fluid

Possible causes – Faulty Throttle Actuator Control Actuator– Electronic Throttle Control System (ETCS) harness is open or shorted– Electronic Throttle Control System (ETCS) circuit poor electrical connection When is the code detected? The Engine Control Module (ECM) monitors the battery

Possible causes – Faulty Vacuum Pump Module– Vacuum Pump Module harness is open or shorted– Vacuum Pump Module circuit poor electrical connection.– Faulty Engine Control Module (ECM) When is the code detected? To determine leak criterion (Reference pressure), vacuum pump

Possible causes – Faulty Vacuum Pump Module– Vacuum Pump Module harness is open or shorted– Vacuum Pump Module circuit poor electrical connection.– Faulty Engine Control Module (ECM) When is the code detected? To determine leak criterion (Reference pressure), vacuum pump

Possible causes – Faulty Vacuum Switching Valve (VSV)– VSV for air injection control circuit Bank 1– Air switching valve No.2 Bank 1– VSV for air injection system Bank 1– Engine Control Module (ECM) Symptoms – Engine Light ON (or Service

Possible causes – Faulty Vacuum Switching Valve (VSV)– VSV for air injection control circuit Bank 1– Air switching valve No.2 Bank 1– VSV for air injection system Bank 1– Engine Control Module (ECM) Symptoms – Engine Light ON (or Service

Possible causes – Faulty Vacuum Switching Valve (VSV)– VSV for air injection control circuit Bank 2– Air switching valve No.2 Bank 2– VSV for air injection system Bank 2– Engine Control Module (ECM) Symptoms – Engine Light ON (or Service

Possible causes – Faulty Vacuum Switching Valve (VSV)– VSV for air injection control circuit Bank 2– Air switching valve No.2 Bank 2– VSV for air injection system Bank 2– Engine Control Module (ECM) Symptoms – Engine Light ON (or Service

Possible causes – Rear Air/Fuel Ratio Sensor Bank 1 Sensor 1 harness is open or shorted– Rear Air/Fuel Ratio Sensor Bank 1 Sensor 1 circuit poor electrical connection– Faulty Rear Air/Fuel Ratio Sensor Bank 1 Sensor 1 Symptoms – Engine

Possible causes – Throttle Body Plate Binding– Faulty Throttle Actuator– Throttle Actuator harness is open or shorted– Throttle Actuator circuit poor electrical connection When is the code detected? Throttle valve locked during Engine Control Module (ECM) order to close Symptoms