Operation CHARM: Car repair manuals for everyone.

Test Point 15




TEST POINT 15
Central Locking Signal

- Ignition on

- Vehicle not locked

PST 2 display: not present

- Central locking button actuated

- Vehicle locked

PST 2 display: present

- Read out fault memory in alarm system control module and eliminate faults present

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

Display: < 5 ohms

- 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

Display: < 5 ohms