Fault code

1. Pull off plug I at the alarm control unit.

2. Disconnect plug connection X 11 (driver's side).

3. Disconnect plug connection X 12 (passenger's side).

4. Check the lines from the alarm control unit plug I pin 35 to the door

- Ohmmeter at alarm control unit plug I pin 35 and ground

5. Check driver's side door lock module switch contact.

- Ohmmeter at plug connection X 11 pin A4 (sleeve side) and

Door lock actuated towards "Closed".

6. Check passenger's side door lock module switch contact.

- Ohmmeter at plug connection X 12 pin A4 (sleeve side) and

Door lock actuated towards "Closed".

Fault, fault code

Possible causes, elimination, notes

7. Check the lines from the alarm control unit plug I pin 15 to the door lock modules for ground shorts.

- Ohmmeter on alarm control unit plug I pin 15 and ground.

8. Check driver's side door lock module switch contact.

- Ohmmeter at plug connection X 11 pin A6 (sleeve side) and

Door lock actuated towards "Open".

9. Check passenger's side door lock module switch contact.

- Ohmmeter at plug connection X 12 pin A6 (sleeve side) and

Door lock actuated towards "Open".

Test point 7

Button, central locking

1. Pull off plug I at the alarm control unit.

system closed Positive short Fault code 07

2. Check the central locking button.

- Voltmeter at plug I pin 29 and ground. Central locking button not actuated. Display: 0 V

Central locking button actuated towards "Closed". Display: Battery voltage.

90 01 Diagnosis/troubleshooting, alarm system

Fault, fault code

Possible causes, elimination, notes

3. Disconnect the plug connection at the central locking button.

4. Check the line from the alarm control unit to the central locking button for positive shorts.

- Voltmeter at plug I pin 29 and ground.

Central locking button not actuated. Display: 0 V

Central locking button actuated towards "Open".

3. Disconnect plug connection at the central locking button.

4. Check the line from the alarm control unit to the central locking button for positive shorts.

- Voltmeter at plug I pin 10 and ground.

Test point 8

Button, central locking system open Positive short Fault code 08

1. Pull off plug I at the alarm control unit.

2. Check central locking button.

- Voltmeter at plug I pin 10 and ground,

Test point 9

Button, central locking system open/closed

1. Pull off plug I at the alarm control unit.

2. Check the central locking button.

Positive short Fault code 09

90 01 Diagnosis/troubleshooting, alarm system

Fault, fault code Possible causes, elimination, notes

Voltmeter at plug I pin 29 and ground. Central locking button not actuated.

Central locking button actuated towards "Closed".

Voltmeter at plug I pin 10 and ground. Central locking button not actuated.

Central locking button actuated towards "Open'

3. Disconnect the plug connection on the central locking button.

4. Check the lines from the alarm control unit to the central locking button for positive shorts.

Voltmeter at plug I pin 29 and ground. Voltmeter at plug I pin 10 and ground.

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