Possible causes – Three way catalyst converter Bank 2– Exhaust tube– Intake air leaks– Fuel injectors may be faulty– Fuel injector leaks– Spark plugs may be faulty– Improper ignition timing– Engine Control Module (ECM)- Three way catalyst converter Bank 2–

Possible causes – Throttle Position Switch (TPS) Adjustment– Faulty Throttle Position Switch (TPS)– Throttle Position Switch (TPS) harness open or shorted– Throttle Position Switch (TPS) circuit poor electrical connection Tech notes Adjusting the Throttle Position Switch (TPS) may take care

Possible causes – Transmission Control Module (TCM) harness is open or shorted – Transmission Control Module (TCM) circuit poor electrical connection – Low battery power – Faulty Transmission Control Module (TCM) Tech notes sometimes this code is triggered when the

Possible causes – Transmission Fluid Pressure Sensor A harness is open or shorted – Transmission Fluid Pressure Sensor A poor electrical connection – Faulty Transmission Fluid Pressure Sensor A – Transmission Valve Body Symptoms – Engine Light ON (or Service

Possible causes – Transmission Fluid Pressure Sensor B harness is open or shorted – Transmission Fluid Pressure Sensor B poor electrical connection – Faulty Transmission Fluid Pressure Sensor B – Transmission Valve Bosy Symptoms – Engine Light ON (or Service

Possible causes – Air fuel ratio (A/F) Harness or connectors is open or shorted– Air fuel ratio (A/F) sensor 1 Bank 1– Air fuel ratio (A/F) sensor 1 heater Bank 1– Fuel pressure– Fuel injector– Intake air leaks– Exhaust Gas

Possible causes – Air fuel ratio (A/F) Harness or connectors is open or shorted– Air fuel ratio (A/F) sensor 1 Bank 1– Air fuel ratio (A/F) sensor 1 heater Bank 1– Fuel pressure– Fuel injector– Intake air leaks– Exhaust Gas

Possible causes – Air fuel ratio (A/F) Harness or connectors is open or shorted– Air fuel ratio (A/F) sensor 1 Bank 2– Air fuel ratio (A/F) sensor 1 heater Bank 2– Fuel pressure– Fuel injector– Intake air leaks– Exhaust Gas

Possible causes – Air fuel ratio (A/F) Harness or connectors is open or shorted– Air fuel ratio (A/F) sensor 1 Bank 2– Air fuel ratio (A/F) sensor 1 heater Bank 2– Fuel pressure– Fuel injector– Intake air leaks– Exhaust Gas

Possible causes – Air Fuel Ratio Sensor 1 Bank 2 harness is open or shorted– Air Fuel Ratio Sensor 1 Bank 2 circuit poor electrical connection– Faulty Air Fuel Ratio Sensor 1 Bank 2 When is the code detected? The

Possible causes – Air Fuel Ratio Sensor 1 Bank 2 harness is open or shorted– Air Fuel Ratio Sensor 1 Bank 2 circuit poor electrical connection– Faulty Air Fuel Ratio Sensor 1 Bank 2 Tech notes There is a factory

Possible causes – ASCD Steering Switch harness is open or shorted – ASCD Steering Switch circuit poor electrical connection – Faulty ASCD Steering Switch – Faulty Engine Control Module (ECM) When is the code detected? An improper voltage signal from

Possible causes – Brake Pedal Switch harness is open or shorted – Brake Pedal Switch circuit poor electrical connection – Faulty Brake Pedal Switch – Faulty stop lamp switch – Faulty Engine Control Moduele (ECM) When is the code detected?

Possible causes – Check harness body ground– Faulty Accelerator Pedal Position (APP) sensor– Faulty Power Steering Pressure (PSP) sensor– Faulty Refrigerant Pressure sensor– Faulty EVAP Control System Pressure sensor Tech notes Start by inspecting the connections of the harness to

Possible causes – Clogged hose to Swirl control valve control vacuum check switch– Swirl Control Valve Control Solenoid Valve harness is open or shorted– Swirl Control Valve Control Solenoid Valve circuit poor electrical connection– Faulty Swirl Control Valve Control Solenoid

Possible causes – Crankshaft position (CKP) sensor harness is open or shorted – Crankshaft position (CKP) sensor circuit poor electrical connection – Crankshaft position sensor may be faulty – Signal plate may be damage – Starter motor may be faulty

Possible causes – ECM Harness power supply circuit is open or shorted– ECM Harness ground supply circuit is open or shorted– ECM may be faulty When is the code detected? ECM back-up RAM system does not function properly. Symptoms Engine

Possible causes – EGR Temperature Sensor harness is open or shorted– EGR Temperature Sensor circuit poor electrical connection– Faulty EGR Temperature Sensor– Malfunction of EGR function, EGRC-BPT valve or EGRC-solenoid valve– Blocked EGR passages When is the code detected? An