Haldex Clutch, Closed, Function Test

Haldex Clutch, Closed, Function Test

Test Requirements

• Haldex clutch oil level OK

• Haldex Clutch Oil Level, Checking => [ Haldex Clutch Oil Level, Checking ] Haldex Clutch Oil Level, Checking.

• Correct engine control module and ABS control module installed (check coding and control module identification number).

- Place vehicle on lift.

CAUTION!
For safety reasons, vehicle must be placed on lift so that wheels do not have any contact with floor.

During test, be accordingly careful to prevent damage.

- Start engine.

- Engage D gear and move from brake pedal.

All 4 wheels must turn.

- Engage hand brake.

- Press accelerator slightly.

A noticeable acceleration against handbrake must be felt or seen.

• If acceleration is detected:

Haldex clutch is closed, function is OK.

• If acceleration is not detected:

Haldex clutch is open. Possible cause of malfunction:

• The main pressure regulating valve may be stuck.

• Mechanical Haldex clutch malfunction.

• The all-wheel drive control module (J492) on the rear final drive is faulty.