Operation CHARM: Car repair manuals for everyone.

Power Locks: Testing and Inspection

Central locking, function test

Notes:

- If system is operating properly, all locks must lock after approximately 2 seconds. If bi-pressure pump runs for longer than 5 seconds system is leaking.

- If bi-pressure pump switches off after about 5 seconds and then starts to run again after 12 seconds, at least one door lock knob has not retracted, or switch-off point in positioning element has not been reached.

Operation check

Requirements:


- Doors, rear lid and tank flap closed.

- Windows fully open.

Locking, checking

- Push down driver's door lock knob.

- All lock knobs must move down. All doors, rear lid and tank flap are locked.

- Ensure all doors, rear lid and tank flap are locked.

Note: Central locking and unlocking works by operating driver's door lock knob.

- No anti-theft function.

Anti-theft system, checking

Requirements:


- Doors, rear lid and tank flap closed.

- Windows open.

Checking:

- Lock driver's door with key and pull up all lock knobs within 12 seconds.

- 12 seconds after locking, pump must run, all doors will be locked again.

- After an additional 15 seconds pull all lock knobs up one after another (wait 24 secs. after locking with key).

- It must not be possible to pull lock knobs up to unlocked position. Bi-pressure pump runs and pulls lock knobs down. At same time, door lock is decoupled and it is no longer possible to open door.

- When this happens, a clicking noise is audible (safety coil decouples door locks).

- Doors are locked, rear lid and tank flap are locked.

- Repeat test procedure starting with front passenger door.