Possible causes – Faulty O2 Sensor Bank 1 Sensor 1– O2 Sensor Bank 1 Sensor 1 harness is open or shorted– O2 Sensor Bank 1 Sensor 1 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon

Possible causes – Faulty O2 Sensor Bank 2 Sensor 1– O2 Sensor Bank 2 Sensor 1 harness is open or shorted– O2 Sensor Bank 2 Sensor 1 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon

Possible causes – Faulty O2 Sensor Bank 1 Sensor 1– O2 Sensor Bank 1 Sensor 1 harness is open or shorted– O2 Sensor Bank 1 Sensor 1 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon

Possible causes – Faulty O2 Sensor Bank 2 Sensor 2– O2 Sensor Bank 2 Sensor 2 harness is open or shorted– O2 Sensor Bank 2 Sensor 2 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon

Possible causes – Faulty O2 Sensor Bank 2 Sensor 1– O2 Sensor Bank 2 Sensor 1 harness is open or shorted– O2 Sensor Bank 2 Sensor 1 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon

Possible causes – Faulty Oxygen Sensor– Oxygen Sensor harness is open or shorted– Oxygen Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1130 BMW Description O2 sensor circuit dynamic test bank 1

Possible causes – Faulty Oxygen Sensor– Oxygen Sensor harness is open or shorted– Oxygen Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1131 BMW Description O2 sensor circuit dynamic test bank 2

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

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

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

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

Possible causes – Faulty Vacuum Switching Valve (VSV)– Vacuum Switching Valve (VSV) harness is open or shorted– Vacuum Switching Valve (VSV) circuit poor electrical connection– Faulty Pressure Sensor– Faulty Air Switching Valve When is the code detected? If the Engine

Possible causes – Faulty Valvetronic Control Motor– Valvetronic Control Motor harness is open or shorted– Valvetronic Control Motor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1048 BMW Description VVT control circuit low

Possible causes – Faulty Valvetronic Control Module– Valvetronic Control Module harness is open or shorted– Valvetronic Control Module circuit poor electrical connection When is the code detected? VVT actuaor monitoring position control control deviation bank 1 Symptoms – Engine Light

Possible causes – Faulty Valvetronic Control Motor– Valvetronic Control Motor harness is open or shorted– Valvetronic Control Motor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1056 BMW Description VVT supply voltage control

Possible causes – Faulty Valvetronic Control Motor– Valvetronic Control Motor harness is open or shorted– Valvetronic Control Motor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1055 BMW Description VVT supply voltage control

Possible causes – Faulty Valvetronic Control Motor– Valvetronic Control Motor harness is open or shorted– Valvetronic Control Motor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1049 BMW Description VVT control circuit engine

Possible causes – Faulty valvetronic eccentric shaft sensor– Valvetronic eccentric shaft sensor harness is open or shorted– Valvetronic eccentric shaft sensor circuit poor electrical connection– Missing reluctor on valvetronic eccentric shaft sensor When is the code detected? Valvetronic eccentric shaft

Possible causes – Faulty valvetronic eccentric shaft sensor– Valvetronic eccentric shaft sensor harness is open or shorted– Valvetronic eccentric shaft sensor circuit poor electrical connection– Missing reluctor on valvetronic eccentric shaft sensor When is the code detected? Valvetronic eccentric shaft

Possible causes – Faulty Valvetronic Control Motor– Valvetronic Control Motor harness is open or shorted– Valvetronic Control Motor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1078 BMW Description VVT overload protection control