Test Point 43

TEST POINT 43
Driver-side Release Stuck

Fault Code 44
This fault is stored if the safe servo motor cannot be actuated, the safe contact (microswitch) is not connected to ground after release, or the alarm system control module is coded incorrectly (country coding).

Fault Effect: No central locking possible

Procedure

1. Check the country coding in the menu item Coding

2. Select (Drive links) "Secure doors" with PST 2, and check whether the servo motors react.

If the servo motors react, select "Driver's side secured" and "Passenger's side secured" in the menu item Input signals, and close the doors

Vehicle Not Secured
PST 2 display Driver's side not secured
Passenger's side not secured

If the display of the PST 2 deviates from this information or if the servo motor does not react, a fault is present in the supply lead or in the door lock (microswitch, servo motor)

3. Pull plugs I and II off the control module

4. Pull plug off door lock on driver's side

- Voltmeter at alarm system control module plug II, pin 3 and ground

Display: 0 Volts

- Ohmmeter at alarm system control module plug II, pin 3 and ground

Display: infinity

- Ohmmeter at alarm system control module plug II, pin 3 and plug on driver side door lock pin 1

Display: < 5 ohms

- Voltmeter at alarm system control module plug I, pin 5 and ground

Display: 0 Volts

- Ohmmeter at alarm system control module plug I, pin 5 and ground

Display: infinity

- Ohmmeter at alarm system control module plug I, pin 5 and plug on driver side door lock pin 7

Display: < 5 ohms

- Ohmmeter at alarm system control module plug I, pin 28 and plug on door lock pin 7

Display: < 5 ohms

If no faults are detected in the wire, replace the door lock on the driver's side.