Member Since: 04 Jan 2023
Location: Essex
Posts: 504
BCM/Seat Memory module fault
My Drivers door mirror auto dips to its lowest position on selecting reverse and does not recover after exiting reverse or selecting Drive. Auto Dip is OFF in settings
Took out the memory module today and inspected for dry joints etc., not helped by the laquer over most of the board. Nothing untoward found so refitted with contact cleaner in the plugs.
Reading the status data with my AP200 line 133, 5 volt potentiometer supply reads 0.34v which probably explains the error of no mirror position feedback.
Anybody know where this 5v is derived from?A visitor from the dark side, my other vehicle is an MG5 EV
30th May 2023 9:29 pm
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10336
5v will be derived from memory module.
Should be the same one that does the 4 positions
31st May 2023 6:20 am
M3DPO
Member Since: 22 Sep 2010
Location: Notts.
Posts: 8044
Memory module got senile dementure, common fault, the module has been upgraded several times.It can when others can't,
It will when others won't,
It goes where others don't.
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