Volkswagen Cars 2000-05

2.0L L4 VIN A Auto 8

Print

Trouble Code: P1363



Cylinder 3 Ignition Circuit Short to Ground

Possible Causes:



Fuel pump relay faulty
 
Canshaft position sensor has failed
 
Engine speed sensor has failed
 
Circuit wires have shorted to ground or are open
 
Ignition coils with power output stages are faulty
 
ECM has failed
 

Trouble Code: P1364



Cylinder 4 Ignition Circuit Open Circuit

Possible Causes:



Fuel pump relay faulty
 
Canshaft position sensor has failed
 
Engine speed sensor has failed
 
Circuit wires have shorted to ground or are open
 
Ignition coils with power output stages are faulty
 
ECM has failed
 

Trouble Code: P1365



Cylinder 4 Ignition Circuit Short to B+

Possible Causes:



Fuel pump relay faulty
 
Canshaft position sensor has failed
 
Engine speed sensor has failed
 
Circuit wires have shorted to ground or are open
 
Ignition coils with power output stages are faulty
 
ECM has failed
 

Trouble Code: P1366



Cylinder 4 Ignition Circuit Short to Ground

Possible Causes:



Fuel pump relay faulty
 
Canshaft position sensor has failed
 
Engine speed sensor has failed
 
Circuit wires have shorted to ground or are open
 
Ignition coils with power output stages are faulty
 
ECM has failed
 

Trouble Code: P1386



Internal Control Module, Knock Control Circuit Error

Possible Causes:



ECM has failed
 

Trouble Code: P1387



Internal Control Module Altitude Sensor Error

Possible Causes:



(If ECM was replaced) ECM ID not the same as the replaced unit
 
ECM has failed
 
Voltage supply for Engine Control Module (ECM) has shorted
 

Trouble Code: P1388



Internal Control Module Drive By Wire Error

Possible Causes:



Engine Control Module (ECM) has failed
 
Voltage supply for Engine Control Module (ECM) has shorted
 

Trouble Code: P1409



Tank Ventilation Valve Circuit Malfunction Conditions

Possible Causes:



EVAP canister purge regulator valve has failed
 
Activation wire is shorting to positive
 
EVAP canister system has an improper or broken seal
 
Evaporative Emission (EVAP) canister purge regulator valve 1 is faulty
 
Leak Detection Pump (LDP) is faulty
 
Fuel filler cap is not properly closed
 
Lock ring on fuel pump not tightened
 
Hoses between EVAP canister and purge regulator valve have failed
 
ECM has failed
 

Trouble Code: P1410



Tank Ventilation Valve Circuit Short to B+:

Possible Causes:



EVAP canister purge regulator valve has failed
 
Activation wire is shorting to positive
 
EVAP canister system has an improper or broken seal
 
Evaporative Emission (EVAP) canister purge regulator valve 1 is faulty
 
Leak Detection Pump (LDP) is faulty
 
Fuel filler cap is not properly closed
 
Lock ring on fuel pump not tightened
 
Hoses between EVAP canister and purge regulator valve have failed
 
ECM has failed
 

Trouble Code: P1420



Secondary Air Injector Valve Circuit Electrical Malfunction

Possible Causes:



Connector to the secondary air injection valve is loose or disconnected
 
Secondary air injector valve circuit short
 
Secondary air injector valve circuit is open
 
Faulty secondary air injector valve
 
ECM has failed
 

Trouble Code: P1421



Secondary Air Injector Valve Circuit Short to Ground

Possible Causes:



Connector to the secondary air injection valve is loose or disconnected
 
Secondary air injector valve circuit short
 
Secondary air injector valve circuit is open
 
Faulty secondary air injector valve
 
ECM has failed
 

Trouble Code: P1422



Secondary Air Injector Valve Circuit Short to B+

Possible Causes:



Connector to the secondary air injection valve is loose or disconnected
 
Secondary air injector valve circuit short
 
Secondary air injector valve circuit is open
 
Faulty secondary air injector valve
 
ECM has failed
 

Trouble Code: P1424



Secondary Air Injector System (Bank 1) Leak Detected

Possible Causes:



Poor hose/pipe connections between the secondary air injector pump motor and valve
 
Faulty hoses or pipes
 
Mechanical faults in the secondary air injector system
 

Trouble Code: P1425



Tank Ventilation Valve Short to Ground

Possible Causes:



Activation wire has a short to ground
 
ECM has failed
 
EVAP canister has failed
 
EVAP canister system has an improper or broken seal
 
Evaporative Emission (EVAP) canister purge regulator valve is faulty
 
Leak Detection Pump (LDP) is faulty
 

Trouble Code: P1426



Tank Ventilation Valve Open

Possible Causes:



Activation wire has a short to ground
 
ECM has failed
 
EVAP canister has failed
 
EVAP canister system has an improper or broken seal
 
Evaporative Emission (EVAP) canister purge regulator valve 1 is faulty
 
Leak Detection Pump (LDP) is faulty
 

Trouble Code: P1432



Secondary Air Injection Valve Open

Possible Causes:



Fuel pump relays have failed
 
Fuel injector has failed
 
Hoses on the EVAP canister may be clogged
 
EVAP canister purge regulator valve may be faulty
 
ECM may have failed
 
Manifold Tuning Valve (IMT) may have failed
 

Trouble Code: P1433



Secondary Air Injection System Pump Relay Circuit Open

Possible Causes:



Fuel pump relays have failed
 
Fuel injector has failed
 
Hoses on the EVAP canister may be clogged
 
EVAP canister purge regulator valve may be faulty
 
ECM may have failed
 
Manifold Tuning Valve (IMT) may have failed
 

Trouble Code: P1434



Secondary Air Injection System Pump Relay Circuit Short to B+

Possible Causes:



Fuel pump relays have failed
 
Fuel injector has failed
 
Hoses on the EVAP canister may be clogged
 
EVAP canister purge regulator valve may be faulty
 
ECM may have failed
 
Manifold Tuning Valve (IMT) may have failed
 

Trouble Code: P1435



Secondary Air Injection System Pump Relay Circuit Short to Ground

Possible Causes:



Fuel pump relays have failed
 
Fuel injector has failed
 
Hoses on the EVAP canister may be clogged
 
EVAP canister purge regulator valve may be faulty
 
ECM may have failed
 
Manifold Tuning Valve (IMT) may have failed
 

Trouble Code: P1436



A/C Evaporator Temperature (ACET) Circuit Low Input

Possible Causes:



ACET signal circuit shorted to sensor ground (return)
 
ACET signal circuit shorted to chassis ground
 
ACET sensor is damaged or has failed
 
Check activation of Secondary Air Injection (AIR) Pump Relay
 
ECM has failed
 

Trouble Code: P1450



Secondary Air Injector Valve Circuit Short to B+

Possible Causes:



Connector to the secondary air injection valve is loose or disconnected
 
Secondary air injector valve circuit short
 
Secondary air injector valve circuit is open
 
Faulty secondary air injector valve
 
ECM has failed
 

Trouble Code: P1451



Secondary Air Injector Valve Circuit Short to Ground

Possible Causes:



Connector to the secondary air injection valve is loose or disconnected
 
Secondary air injector valve circuit short
 
Secondary air injector valve circuit is open
 
Faulty secondary air injector valve
 
ECM has failed
 

Trouble Code: P1452



Secondary Air Injector Valve Circuit Open

Possible Causes:



Connector to the secondary air injection valve is loose or disconnected
 
Secondary air injector valve circuit short
 
Secondary air injector valve circuit is open
 
Faulty secondary air injector valve
 
ECM has failed
 

Trouble Code: P1471



EVAP Emission Control Leak Detection Pump Circuit Short to B+

Possible Causes:



Leak Detection Pump has failed
 
EVAP canister system has an improper or broken seal
 
Evaporative Emission (EVAP) canister purge regulator valve 1 is faulty
 
Hoses between the fuel pump and the EVAP canister are faulty
 
Fuel filler cap is loose
 
Fuel pump seal is defective, faulty or otherwise leaking
 
Hoses between the EVAP canister and the fuel flap unit are faulty
 
Hoses between the EVAP canister and the evaporative emission canister purge regulator valve are faulty
 
ECM has failed
 

Trouble Code: P1472



EVAP Emission Control Leak Detection Pump Circuit Short to Ground

Possible Causes:



Leak Detection Pump has failed
 
EVAP canister system has an improper or broken seal
 
Evaporative Emission (EVAP) canister purge regulator valve 1 is faulty
 
Hoses between the fuel pump and the EVAP canister are faulty
 
Fuel filler cap is loose
 
Fuel pump seal is defective, faulty or otherwise leaking
 
Hoses between the EVAP canister and the fuel flap unit are faulty
 
Hoses between the EVAP canister and the evaporative emission canister purge regulator valve are faulty
 
ECM has failed
 

Trouble Code: P1473



EVAP Emission Control Leak Detection Pump Circuit Open

Possible Causes:



Leak Detection Pump has failed
 
EVAP canister system has an improper or broken seal
 
Evaporative Emission (EVAP) canister purge regulator valve 1 is faulty
 
Hoses between the fuel pump and the EVAP canister are faulty
 
Fuel filler cap is loose
 
Fuel pump seal is defective, faulty or otherwise leaking
 
Hoses between the EVAP canister and the fuel flap unit are faulty
 
Hoses between the EVAP canister and the evaporative emission canister purge regulator valve are faulty
 
ECM has failed
 

Trouble Code: P1475



EVAP Emission Control LDP Circuit Malfunction/Signal Circuit Open

Possible Causes:



Leak Detection Pump has failed
 
EVAP canister system has an improper or broken seal
 
Evaporative Emission (EVAP) canister purge regulator valve 1 is faulty
 
Hoses between the fuel pump and the EVAP canister are faulty
 
Fuel filler cap is loose
 
Fuel pump seal is defective, faulty or otherwise leaking
 
Hoses between the EVAP canister and the fuel flap unit are faulty
 
Hoses between the EVAP canister and the evaporative emission canister purge regulator valve are faulty
 
ECM has failed
 

Trouble Code: P1476



EVAP Emission Control LDP Circuit Malfunction/Insufficient Vacuum

Possible Causes:



Leak Detection Pump has failed
 
EVAP canister system has an improper or broken seal
 
Evaporative Emission (EVAP) canister purge regulator valve 1 is faulty
 
Hoses between the fuel pump and the EVAP canister are faulty
 
Fuel filler cap is loose
 
Fuel pump seal is defective, faulty or otherwise leaking
 
Hoses between the EVAP canister and the fuel flap unit are faulty
 
Hoses between the EVAP canister and the evaporative emission canister purge regulator valve are faulty
 
ECM has failed
 

Trouble Code: P1477



EVAP Emission Control LDP Circuit Malfunction

Possible Causes:



Leak Detection Pump has failed
 
EVAP canister system has an improper or broken seal
 
Evaporative Emission (EVAP) canister purge regulator valve 1 is faulty
 
Hoses between the fuel pump and the EVAP canister are faulty
 
Fuel filler cap is loose
 
Fuel pump seal is defective, faulty or otherwise leaking
 
Hoses between the EVAP canister and the fuel flap unit are faulty
 
Hoses between the EVAP canister and the evaporative emission canister purge regulator valve are faulty
 
ECM has failed
 

Trouble Code: P1478



EVAP Emission Control LDP Circuit Clamped Tube Detected

Possible Causes:



Leak Detection Pump has failed
 
EVAP canister system has an improper or broken seal
 
Evaporative Emission (EVAP) canister purge regulator valve 1 is faulty
 
Hoses between the fuel pump and the EVAP canister are faulty
 
Fuel filler cap is loose
 
Fuel pump seal is defective, faulty or otherwise leaking
 
Hoses between the EVAP canister and the fuel flap unit are faulty
 
Hoses between the EVAP canister and the evaporative emission canister purge regulator valve are faulty
 
ECM has failed
 

Trouble Code: P1500



Fuel Pump Relay Circuit Electrical Malfunction

Possible Causes:



Fuel delivery unit connector is loose or not attached
 
Fuse 18 cause a short to the transfer fuel pump or the O2S
 
Fuel pump has failed
 
Fuel pump relay circuit is shorted to ground, B+ or is open
 
Fuel Pump (FP) Relay not activated
 
ECM has failed
 

Trouble Code: P1501



Fuel Pump Relay Circuit Electrical Short to Ground

Possible Causes:



Fuel delivery unit connector is loose or not attached
 
Fuse 18 cause a short to the transfer fuel pump or the O2S
 
Fuel pump has failed
 
Fuel pump relay circuit is shorted to ground, B+ or is open
 
Fuel Pump (FP) Relay not activated
 
ECM has failed
 

Trouble Code: P1502



Fuel Pump Relay Circuit Short to B+

Possible Causes:



Fuel delivery unit connector is loose or not attached
 
Fuse 18 cause a short to the transfer fuel pump or the O2S
 
Fuel pump has failed
 
Fuel pump relay circuit is shorted to ground, B+ or is open
 
Fuel Pump (FP) Relay not activated
 
ECM has failed
 

Trouble Code: P1517



Main Relay Circuit Electrical Malfunction

Possible Causes:



Engine Control Module (ECM) has failed
 
Voltage supply for Engine Control Module (ECM) is faulty
 
Check activation of Motronic Engine Control Module (ECM) Power Supply Relay
 

Trouble Code: P1541



Fuel Pump Relay Circuit Open

Possible Causes:



Fuel pump relay not activiated
 

Trouble Code: P1542



Throttle Actuation Potentiometer Range/Performance

Possible Causes:



Throttle valve control module is faulty
 
Throttle valve is damaged or dirty
 
Throttle valve must be in closed throttle position
 
Accelerator pedal is out of adjustment (AEG engines only)
 
Throttle position actuator is shorting to ground or power
 

Trouble Code: P1543



Throttle Actuation Potentiometer Signal Too Low

Possible Causes:



Throttle valve control module is faulty
 
Throttle valve is damaged or dirty
 
Throttle valve must be in closed throttle position
 
Accelerator pedal is out of adjustment (AEG engines only)
 
Throttle position actuator is shorting to ground or power
 

Trouble Code: P1544



Throttle Actuation Potentiometer Signal Too High

Possible Causes:



Throttle valve control module is faulty
 
Throttle valve is damaged or dirty
 
Throttle valve must be in closed throttle position
 
Accelerator pedal is out of adjustment (AEG engines only)
 
Throttle position actuator is shorting to ground or power
 

Trouble Code: P1545



Throttle Position Control Malfunction

Possible Causes:



Throttle valve control module is faulty
 
Throttle valve is damaged or dirty
 
Throttle valve must be in closed throttle position
 
Accelerator pedal is out of adjustment (AEG engines only)
 
Throttle position actuator is shorting to ground or power
 

Trouble Code: P1546



Boost Pressure Control Valve Short to B+

Possible Causes:



Charge air pressure sensor is faulty
 
Voltage supply to the charge air pressure sensor is open or shorted
 
Check the charge air system for leaks
 
Recirculating valve for turbocharger is faulty
 
Turbocharging system is damaged or not functioning properly
 
Turbocharger recirculating valve is faulty
 
Vacuum diaphragm for turbocharger is out of adjustment
 
Wastegate bypass regulator valve is faulty
 
Boost sensor has failed
 
ECM has failed
 

 
label.common.footer.alt.autozoneLogo