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)
Tag: VOLKSWAGEN
P0421 VOLKSWAGEN Warm Up Catalyst Efficiency Below Threshold Bank 1
Possible causes – Warm Up Three Way Catalytic converter deterioration or malfunction– Exhaust system leaks– Loose front or rear HO2Ss– Faulty front heater O2 sensor– O2 sensors harness is open or shorted– O2 sensors poor electrical connection Tech description As the code description implies the P0421 code means that the vehicle’s control module has detected…
P0422 VOLKSWAGEN Main Catalyst Efficiency Below Threshold Bank 1
Possible causes – Warm Up Three Way Catalytic converter deterioration or malfunction– Exhaust system leaks– Loose front or rear HO2Ss– Faulty front heater O2 sensor– O2 sensors harness is open or shorted– O2 sensors poor electrical connection Tech description As the code description implies the P0422 code means that the vehicle’s control module has detected…
P0431 VOLKSWAGEN Warm Up Catalyst Efficiency Below Threshold Bank 2
Possible causes – Warm Up Three Way Catalytic converter deterioration or malfunction– Exhaust system leaks– Loose front or rear HO2Ss– Faulty front heater O2 sensor– O2 sensors harness is open or shorted– O2 sensors poor electrical connection Tech description As the code description implies the P0431 code means that the vehicle’s control module has detected…
P0432 VOLKSWAGEN Main Catalyst Efficiency Below Threshold Bank 2
Possible causes – Warm Up Three Way Catalytic converter deterioration or malfunction– Exhaust system leaks– Loose front or rear HO2Ss– Faulty front heater O2 sensor– O2 sensors harness is open or shorted– O2 sensors poor electrical connection Tech description As the code description implies the P0432 code means that the vehicle’s control module has detected…
P0688 VOLKSWAGEN Electronic Control Module Power Relay Control Circuit Open
Possible causes – Weak battery- Low voltage while cranking– Faulty Engine Control Module (ECM) relay– Blown ECM fuse– Faulty ECM– ECM harness is open or shorted– ECM circuit poor electrical connection Tech description Check all the ECM fuses, if the fuses are OK try replacing the ECM relay. Symptoms – Engine Light ON (or Service…
P1048 VOLKSWAGEN Bank 1 Camshaft Adjustment Valve 1 Short To Positive
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)
P0700 VOLKSWAGEN Transmission Control System Malfunction
Possible causes – Shorted or open circuit within Transmission Control Module (TCM)– Faulty Transmission Control Module (TCM) Tech description Since the P0700 is just and informative code, check the TCM for more codes to resolve the problem. Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– Driveability problems– Transmission shifting problems P0700 VOLKSWAGEN…
P0698 VOLKSWAGEN Sensor Reference Voltage C Circuit Low
Possible causes – Shorted sensor– Shorted circuit condition– Faulty Engine Control Module (ECM) Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
P0699 VOLKSWAGEN Sensor Reference Voltage C Circuit High
Possible causes – Shorted sensor– Shorted circuit condition– Faulty Engine Control Module (ECM) Symptoms – Engine Light ON (or Service Engine Soon Warning Light)