Camshaft Adjustment Valve 1 N205 , Checking

Camshaft Adjustment Valve 1 N205, Checking

Special tools, testers and auxiliary items required
- Multimeter V.A.G 1526 or equivalent.
- Test Box 105 Pin VAG1598/42.
- Adapter Lead Vag1598/39 VAG1598/39.
- Adapter cable V.A.G 1598/39-1.

Test requirements
- Fuse for Camshaft Adjustment Valve 1 N205 OK.
- Motronic Engine Control Module (ECM) Power Supply Relay J271 OK.
- 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 sequence







- Remove engine cover - arrows - .







- Disconnect the electrical harness connector - 1 - from Camshaft Adjustment Valve 1 N205 .
- Using the Multimeter V.A.G 1526 A or equivalent, check the Camshaft Adjustment Valve 1 N205 for resistance.
Specified value: 5.0 to 8.0 Ohms (at approx. 20 degrees C)

If the specification is not obtained:
- If the specification is not obtained.

If the specification is obtained:
- Connect the test box 1598/42 to the wiring harness of the Engine Control Module (ECM) J623.







- Using the Test Box 105 Pin VAG1598/42 and Multimeter V.A.G 1526 A or equivalent, check the following wiring connection for an open circuit.

Terminal Test box socket
2 20

Specified resistance 1.5 Ohms max.

If the specification is not obtained:
- Check the wiring for a short circuit to Battery positive (+) or an open circuit.
- If necessary, repair the wiring connection.

If no malfunctions are found in the wiring:
- Replace the Engine Control Module (ECM) J623.

Assembly is performed in the reverse order of removal, note the following:

Final procedures

After the repair work, the following work steps must be performed in the following sequence:
1. Check the DTC memory.
2. If necessary, erase the DTC memory.
3. If the DTC memory was erased, generate readiness code.

- End diagnosis and switch the ignition off.