P0642 VOLKSWAGEN Sensor Reference Voltage A Circuit Low

Possible causes – Faulty Engine Control Module (ECM)– ECM harness is open or shorted– ECM circuit poor electrical connection– Shorted sensor on 5 volt circuit When is the obd code mean? The Engine Control Module (ECM) has detected the sensor 5 volt reference circuit voltage is lower than expected Symptoms – Engine Light ON (or…

P0652 VOLKSWAGEN Sensor Reference Voltage B Circuit Low

Possible causes – Faulty Engine Control Module (ECM)– ECM harness is open or shorted– ECM circuit poor electrical connection– Shorted sensor on 5 volt circuit When is the obd code mean? The Engine Control Module (ECM) has detected the sensor 5 volt reference circuit voltage is lower than expected

P0607 VOLKSWAGEN Control Module Performance

Possible causes – Faulty Engine Control Module (ECM)– Engine Control Module (ECM) Harness power supply circuit is open or shorted– Engine Control Module (ECM) Programming Tech description Check the ECM fuse, if fuse is OK try erasing the code first and if the code comes back you may have to reprogram or replaced the ECM….

P0600 VOLKSWAGEN Serial Communication Link

Possible causes – Faulty Engine control Module (ECM)– Engine control Module(ECM) harness is open or shorted– Engine control Module (ECM) cicuit poor electricl connection– Low battery voltage Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0600 VOLKSWAGEN OBD Code Description The ECM did not detect communication between modules

P0659 VOLKSWAGEN Actuator Supply Voltage A Circuit High

Possible causes – Faulty Engine Control Module (ECM)– ECM harness is open or shorted– ECM circuit poor electrical connection– ECM Programming When is the obd code mean? The Engine Control Module (ECM) has detected a high voltage to the transmission control solenoids. Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P0658 VOLKSWAGEN Actuator Supply Voltage A Circuit Low

Possible causes – Faulty Engine Control Module (ECM)– ECM harness is open or shorted– ECM circuit poor electrical connection– ECM Programming When is the obd code mean? The Engine Control Module (ECM) has detected a low voltage to the transmission control solenoids. Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P0657 VOLKSWAGEN Actuator Supply Voltage A Circuit Open

Possible causes – Faulty Engine Control Module (ECM)– ECM harness is open or shorted– ECM circuit poor electrical connection– ECM Programming When is the obd code mean? The Engine Control Module (ECM) has detected an interruption to the transmission control solenoids. Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P0641 VOLKSWAGEN Sensor Reference Voltage A Circuit Open

Possible causes – Faulty Engine Control Module (ECM)– ECM harness is open or shorted– ECM circuit poor electrical connection– Shorted sensor on 5 volt circuit When is the obd code mean? The Engine Control Module (ECM) has detected the sensor 5 volt reference circuit voltage is higher or lower than expected Symptoms – Engine Light…

P0651 VOLKSWAGEN Sensor Reference Voltage B Circuit Open

Possible causes – Faulty Engine Control Module (ECM)– ECM harness is open or shorted– ECM circuit poor electrical connection– Shorted sensor on 5 volt circuit When is the obd code mean? The Engine Control Module (ECM) has detected the sensor 5 volt reference circuit voltage is higher or lower than expected Symptoms – Engine Light…