Category: OBDii Powertrain Codes

P1050 Bank 1 Camshaft Adjustment Valve 1 Open Circuit Possible causes – Timing belt installation– Faulty Camshaft Adjustment Valve 1– Camshaft Adjustment Valve 1 harness is open or shorted– Camshaft Adjustment Valve 1 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1051 Air Fuel Ratio Sensor 1 Heater Control Circuit Low Bank 2 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 description What about the obd code? The current…

P1038 Nitrogen Oxides Sensor Open Circuit Possible causes – Faulty nitrogen oxides (NOx) sensor– Nitrogen oxides (NOx) sensor harness is open or shorted– Nitrogen oxides (NOx) sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1038 Description Nitrogen oxides (NOx) sensor – open circuit

P1039 Nitrogen Oxides Sensor Short Circuit Possible causes – Faulty nitrogen oxides (NOx) sensor– Nitrogen oxides (NOx) sensor harness is open or shorted– Nitrogen oxides (NOx) sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1039 Description Nitrogen oxides (NOx) sensor – short circuit

P1040 Injector 1 Supply Voltage Circuit Malfunction Possible causes – Faulty injector 1– Injector 1 harness is open or shorted– Injector 1 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1041 Injector 2 Supply Voltage Short Circuit Possible causes – Faulty injector 2– Injector 2 harness is open or shorted– Injector 2 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1042 Injector 2 Supply Voltage Circuit Malfunction Possible causes – Faulty injector 2– Injector 2 harness is open or shorted– Injector 2 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1043 Injector 3 Supply Voltage Short Circuit Possible causes – Faulty injector 3– Injector 3 harness is open or shorted– Injector 3 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1031 Intake Manifold Air Control Valve Position Sensor Specification Not Attained Possible causes – Faulty intake manifold air control solenoid– Intake manifold air control solenoid harness is open or shorted– Intake manifold air control solenoid circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1032 Air Fuel Ratio Sensor 1 Heater Control Circuit High Bank 1 Possible causes – Faulty Air Fuel Ratio Sensor 1 Bank 1– Air Fuel Ratio Sensor 1 harness is open or shorted– Air Fuel Ratio Sensor 1 circuit poor electrical connection What about the obd code? The current amperage in the heated air fuel…

P1033 Nitrogen Oxides Sensor Signal Too Low Possible causes – Faulty nitrogen oxides (NOx) sensor– Nitrogen oxides (NOx) sensor harness is open or shorted– Nitrogen oxides (NOx) sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1033 Description Nitrogen oxides (NOx) sensor – signal too low

P1034 Nitrogen Oxides Sensor Signal Outside Tolerance Possible causes – Faulty nitrogen oxides (NOx) sensor– Nitrogen oxides (NOx) sensor harness is open or shorted– Nitrogen oxides (NOx) sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1034 Description Nitrogen oxides (NOx) sensor – signal outside tolerance

P1035 Nitrogen Oxides Sensor Range Performance Problem Possible causes – Faulty nitrogen oxides (NOx) sensor– Nitrogen oxides (NOx) sensor harness is open or shorted– Nitrogen oxides (NOx) sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1035 Description Nitrogen oxides (NOx) sensor – range/performance problem

P1036 Nitrogen Oxides Sensor Short To Positive Possible causes – Faulty nitrogen oxides (NOx) sensor– Nitrogen oxides (NOx) sensor harness is open or shorted– Nitrogen oxides (NOx) sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1036 Description Nitrogen oxides (NOx) sensor – short to positive

P1037 Nitrogen Oxides Sensor Short To Ground Possible causes – Faulty nitrogen oxides (NOx) sensor– Nitrogen oxides (NOx) sensor harness is open or shorted– Nitrogen oxides (NOx) sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1037 Description Nitrogen oxides (NOx) sensor – short to ground

P1028 Throttle Body Internal Fault Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1029 Intake Manifold Air Control Valve Position Sensor Upper Limit Not Reached Possible causes – Faulty intake manifold air control solenoid– Intake manifold air control solenoid harness is open or shorted– Intake manifold air control solenoid circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1030 Intake Manifold Air Control Valve Position Sensor Lower Limit Not Reached Possible causes – Faulty intake manifold air control solenoid– Intake manifold air control solenoid harness is open or shorted– Intake manifold air control solenoid circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1024 Fuel Pressure Control Valve Open Circuit Possible causes – Faulty fuel pressure control valve– Fuel pressure control valve harness is short to ground– Fuel pressure control valve circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1025 Fuel Pressure Control Valve Mechanical Malfunction Possible causes – Faulty fuel pressure control valve– Fuel pressure control valve harness is open or shorted– Fuel pressure control valve circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)