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911 Carrera (996)

Alarm system diagnosis

Fault, Fault code

Possible causes, elimination, Notes

Test point 8

Central locking button open

1. Pull off plug I on the alarm control module.

2. Check the central locking button. Voltmeter at plug I pin 10 and ground.

Short to B+ Fault code 08

Central locking button not actuated. Display: 0 V

Central locking button actuated towards "Open".

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

4. Check the lead from the alarm control module to the central locking button for short to B+.

Voltmeter at plug I pin 10 and ground.

Central locking button not actuated. Display: 0 V

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 at the central locking button,

Test point 9

Central locking

1. Pull off plug I on the alarm control module.

2. Check the central locking button. Voltmeter at plug I pin 29 and ground.

button open/closed Short to B+ Fault code 09

4. Check the leads from the alarm control module to the central locking button for short to B+.

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