Possible causes – Faulty ambient air temperature sensor– Ambient air temperature sensor harness is open or shorted– Ambient air temperature sensor circuit poor electrical connection When is the obd code mean? The Engine Control Module (ECM) has detected an open or short circuit condition on the Ambient Air Temperature (AAT) sensor circuit. Symptoms – Engine…
Tag: VOLKSWAGEN
P0071 VOLKSWAGEN Ambient Air Temperature Sensor Circuit Range/Performance Fault
Possible causes – Faulty ambient air temperature sensor– Ambient air temperature sensor harness is open or shorted– Ambient air temperature sensor circuit poor electrical connection When is the obd code mean? The Engine Control Module (ECM) has detected an open or short circuit condition on the Ambient Air Temperature (AAT) sensor circuit. Symptoms – Engine…
P0598 VOLKSWAGEN Thermostat Heater Control Circuit Low
Possible causes – Failed Engine Cooling Thermostat– Engine Cooling Thermostat harness is open or shorted– Engine Cooling Thermostat circuit poor electrical connection Tech description If there are not coolant system leaks, replaced the thermostat to fix the problem. When is the obd code mean? The P0598 is triggered when there is an open or short…
P0599 VOLKSWAGEN Thermostat Heater Control Circuit High
Possible causes – Failed Engine Cooling Thermostat– Engine Cooling Thermostat harness is open or shorted– Engine Cooling Thermostat circuit poor electrical connection Tech description If there are not coolant system leaks, replaced the thermostat to fix the problem. When is the obd code mean? The P0598 is triggered when there is an open or short…
P0645 VOLKSWAGEN A/C Clutch Relay Control Circuit
Possible causes – Faulty Air Conditioning Clutch Relay– Air Conditioning Clutch Relay harness is open or shorted– Air Conditioning Clutch Relay circuit poor electrical connection When is the obd code mean? The P0645 code is stored if an open or short exists in A/C clutch relay control circuit. Symptoms – Engine Light ON (or Service…
P0412 VOLKSWAGEN Secondary Air Injection System Switching Valve A Circuit Malfunction
Possible causes – Faulty Air Pump inoperative– Air bypass solenoid harness is open or shorted– Air bypass solenoid circuit poor electrical connection When is the obd code mean? The DTC P0412 is detected the the AIR vacuum control solenoid circuit not operating as desired by the PCM. Symptoms – Engine Light ON (or Service Engine…
P0413 VOLKSWAGEN Secondary Air Injection System Switching Valve A Circuit Open
Possible causes – Faulty Air Pump inoperative– Air bypass solenoid harness is open or shorted– Air bypass solenoid circuit poor electrical connection When is the obd code mean? The DTC P0413 is detected the the AIR vacuum control solenoid circuit not operating as desired by the PCM. Symptoms – Engine Light ON (or Service Engine…
P1400 VOLKSWAGEN EGR Valve Power Stage Circuit Electrical Malfunction
Possible causes – EGR Valve harness is open or shorted– EGR Valve circuit poor electrical connection– Faulty EGR Valve Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
P0404 VOLKSWAGEN Exhaust Gas Recirculation Control Circuit Range/Performance
Possible causes – EGR volume control solenoid valve– EGR volume control solenoid valve harness is open or shorted– EGR volume control solenoid valve circuit poor electrical connection– EGR temperature sensor and circuit When is the obd code mean? An improper voltage signal is sent to ECM through the valve Symptoms – Engine Light ON (or…
P0402 VOLKSWAGEN Exhaust Gas Recirculation Flow Excessive Detected
Possible causes – EGR volume control valve stuck open– Faulty EGR volume control valve– EGR solenoid valve harness is open or shorted– EGR solenoid valve circuit poor electrical connection– Faulty EGR temperature sensor and circuit When is the obd code mean? High Exhaust Gas Recirculation (EGR) flow control is detected Symptoms – Engine Light ON…