Did hard reset and trunk button started working.
Blinkers worked in begining slowly when hazard light button was on, but when pressed blinkers they again started working double speed. All turning bulbs are ok and working.
After spending hours on this forum I have guess that it might be body processing module at fault. Is there any way to check it without ordering new unit ?
Disconnect the battery and take the body computer out from behind the glove box. Unscrew lots of little screws and look for broken solder joints on the two earth screws in the computer.One day I will put flexible wires on those screws.