Operation CHARM: Car repair manuals for everyone.

Test Point 7

Fault Code 07
Button, central locking system closed Positive short.

1. Pull off plug I at the alarm control unit.
2. Check the central locking button.
- Voltmeter at plug I pin 29 and ground.
Central locking button not actuated.
Display: 0V
Central locking button actuated towards "Closed".
Display: Battery voltage.
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.
Display: 0V