You will need a multimeter to do the job.
Removing
1. We prepare the car for work (see «Preparing the car for maintenance and repair»).
2. Use a thin slotted screwdriver to hook the control unit and remove it from the inside door handle.
Astra
Zafira
Disconnect the wiring harness block and remove the power window control unit.
Astra
Zafira
Examination
We check the correctness of the closure of the contacts in various positions of the power window control keys. If one of the keys fails, the assembly must be replaced.
The pin numbers of the power window control unit are marked next to the pins
Installation
Install the power window control unit in reverse order.
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