Possible causes – Faulty throttle position sensor– Throttle position sensor harness is open or shorted– Throttle position sensor circuit poor electrical connection When is the code detected? An excessively high voltage from the Throttle Position Sensor (TPS) is sent to

Possible causes – Faulty Transmission Speed Sensor– Transmission Speed Sensor harness is open or shorted– Transmission Speed Sensor circuit poor electrical connection When is the code detected? Diagnostic Trouble Code (DTC) P0715 is detected when TCM or ECM does not

Possible causes – Faulty Transmission Speed Sensor– Transmission Speed Sensor harness is open or shorted– Transmission Speed Sensor circuit poor electrical connection When is the code detected? Diagnostic Trouble Code (DTC) P0717 is detected when TCM or ECM receives no

Possible causes – Faulty Variable Valve Timing (VVT) sensor– Dirty Oil– Variable Valve Timing (VVT) sensor circuit is open or shorted– Variable Valve Timing (VVT) sensor poor electrical connection– Damaged ECM When is the code detected? The Engine Control Module

Possible causes – Faulty Vehicle Speed Sensor– Vehicle speed sensor harness or connectors is open or shorted– Vehicle speed sensor circuit poor electrical connection– Faulty Engine Control Module (ECM) Tech notes Replaced the speed sensor on top transmission. When is

Possible causes – Faulty Vehicle Speed Sensor– Vehicle speed sensor harness or connectors is open or shorted– Vehicle speed sensor circuit poor electrical connection– Faulty Engine Control Module (ECM) Tech notes Replaced the speed sensor on top transmission. When is

Possible causes – Intake air leaks– Faulty front heated oxygen sensor– Ignition misfiring – Faulty fuel injectors – Exhaust gas leaks– Incorrect fuel pressure– Lack of fuel– Faulty Mass Air Flow (MAF) sensor– Incorrect Positive Crankcase Ventilation (PCV) hose connection

Possible causes – Intake air leaks– Faulty front heated oxygen sensor– Ignition misfiring– Faulty fuel injectors– Exhaust gas leaks– Incorrect fuel pressure– Lack of fuel– Faulty Mass Air Flow (MAF) sensor– Incorrect Positive Crankcase Ventilation (PCV) hose connection Tech notes

Possible causes – Leaking or stuck open thermostat– Low engine coolant level– Insufficient warm up time– Faulty engine coolant temperature sensor– Engine coolant temperature sensor harness is open or shorted– Engine coolant temperature sensor circuit poor electrical connection Tech notes

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

Possible causes – Low or no fuel– Faulty Fuel Rail Pressure Sensor– Fuel Rail Pressure Sensor harness is open or shorted– Fuel Rail Pressure Sensor circuit poor electrical connection– Faulty Fuel Pump Symptoms – Engine Light ON (or Service Engine

Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty line pressure solenoid ‘B’ valve– Line pressure solenoid ‘B’ valve harness is open or shorted– Line pressure solenoid ‘B’ valve circuit poor electrical connection When is the code detected?

Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty line pressure solenoid ‘B’ valve– Line pressure solenoid ‘B’ valve harness is open or shorted– Line pressure solenoid ‘B’ valve circuit poor electrical connection When is the code detected?

Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty line pressure solenoid valve– Line pressure solenoid valve harness is open or shorted– Line pressure solenoid valve circuit poor electrical connection Tech notes When the a transmission solenoid is

Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty pressure control solenoid valve ‘C’– Pressure control solenoid valve ‘C’ harness is open or shorted– Pressure control solenoid valve ‘C’ circuit poor electrcial connection When is the code detected?

Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty pressure control solenoid valve ‘C’– Pressure control solenoid valve ‘C’ harness is open or shorted– Pressure control solenoid valve ‘C’ circuit poor electrcial connection When is the code detected?

Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty shifting solenoid valve– Shifting solenoid valve harness is open or shorted– Shifting solenoid valve circuit poor electrical connection When is the code detected? Code P0787 is detected when the

Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty shifting solenoid valve– Shifting solenoid valve harness is open or shorted– Shifting solenoid valve circuit poor electrical connection When is the code detected? Code P0788 is detected when the