Camshaft Adjustment Valve 1 N205 , checking (Engine Code AWP)

Special tools, testers and auxiliary items required

Test requirements

The Camshaft Adjustment Valve 1 N205 fuse OK.
Fuel Pump (FP) Relay J17 OK, checking → Electrical Wiring Diagrams, Troubleshooting and Component Locations.
Battery voltage at least 12.5 volts.
All electrical consumers such as, lights and rear window defroster, switched off.

Vehicles with automatic transmission, shift selector lever into position "P" or "N".
A/C switched off.
Ground (GND) connections between engine/transmission/chassis OK.
Ignition switched off.

Test procedure

Perform a preliminary check to verify the customers complaint. Refer to → Motronic Engine Control Module (ECM) J220 , replacing

Start diagnosis

Remove the engine cover with air filter. Refer to 24 MULTIPORT FUEL INJECTION (MFI) for Engine Code AWD and 24 MULTIPORT FUEL INJECTION (MFI) for Engine Codes AWP and AWW .
Disconnect Camshaft Adjustment Valve 1 N205 electrical harness connector.

Fig 1: Checking Resistance Between Terminals Of Respective Valve

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Specified value: 10.0 to 18.0 Ω (at approx. 20 ° C)

If the specified value was not obtained:

If the specified value was obtained:

Checking voltage

Fig 2: 2-Pin Electrical Harness Connector & Terminals

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Using a Multimeter , Check the Camshaft Adjustment Valve 1 N205 electrical harness connector terminal 1 to ground (GND) for voltage.
Switch the ignition off.

Specified value: battery voltage.

If the specified value was not obtained:

Check the wiring connection for an open circuit, short circuit to Battery (+) or Ground (GND).
Check the wiring connection for damage, corrosion, lose or broken terminals.
If necessary, repair the faulty wiring connection.

If the specified value was obtained:

Checking wiring

If the manufacturers test box is being used. Perform the following step.

Install the test box Test Box 105 Pin VAG1598/31. Refer to 24 MULTIPORT FUEL INJECTION (MFI) for Engine Code AWD and 24 MULTIPORT FUEL INJECTION (MFI) for Engine Codes AWP and AWW .

If the manufacturers test box is not being used. Perform the following step.

Remove the Motronic Engine Control Module (ECM) J220. Refer to → Motronic Engine Control Module (ECM) J220 , replacing .

Fig 3: 2-Pin Electrical Harness Connector & Terminals

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Using a Multimeter , Check the Camshaft Adjustment Valve 1 N205 electrical harness connector terminal 2 to the Motronic Engine Control Module (ECM) electrical harness connector T121 terminal 115 for an open circuit.

Camshaft Adjustment Valve 1 N205 electrical harness connector terminal	Motronic Engine Control Module (ECM) electrical harness connector T121 terminal or test box socket
2	115

Specified value: 1.5 Ω Max.

If the specified value was not obtained:

Check the wiring connection for an open circuit, short circuit to Battery (+) or Ground (GND).
Check the wiring connection for damage, corrosion, lose or broken terminals.
If necessary, repair the faulty wiring connection.
Erase the DTC memory. Refer to → Diagnostic Mode 04: Reset/delete diagnostic data

If the DTC does not return:

Repair complete, Generate readiness code. Refer to → Readiness Code .

If the DTC does return and no malfunction is detected in the wiring and the voltage supply was OK:

Replace the MFI Engine Control Module (ECM) J220. Refer to → Motronic Engine Control Module (ECM) J220 , replacing .
Assembly is performed in the reverse of the removal.

Final procedures

After the repair work, the following work steps must be performed in the following sequence:

End diagnosis