Test point 15

Central locking signal

Ignition on

Vehicle not locked

PST2 display:

Central locking button actuated Vehicle locked not present

PST2 display:

present

Read out fault memory in alarm system control module and

If the central locking function is OK Switch off ignition

Pull off plug II on the instrument cluster Lock vehicle

Ohmmeter on plug II of instrument cluster pin 8 and ground Unlock vehicle

Pull plug I off the alarm system control module

Ohmmeter on instrument cluster plug II pin 8 and plug I on alarm system control module pin 30

Ohmmeter display: < 5 Q

90 25 Diagnosis/Troubleshooting, instrument cluster

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