Passenger mirror doesn't return after reversing

[umd]

The mirror will tilt down but it won't tilt back up. I've seen references to a passenger mirror control module, is that what is responsible for that operation? I couldn't find much information about the module.

[Mayorchuck]

I had this issue years ago. Battery nap took care of it. Here is the pinout on the module also.

A24 Passenger's door module
Plug connector overview

Number	X-pin, colour	Description
X889	5-pin, black	Plug connector Passenger's door module
X1130	12-pin, black	Plug connector Passenger's door module
X1131	18-pin, natural	Plug connector Passenger's door module

Pin assignments at plug connector X889

Pin	Type	Description / Signal type	Connection / Measuring notes
1	E	Terminal 30	Fuse F8
2	M	Control unit ground	Ground connector
3		Not used
4	A	Power window motor signal, close	Passenger's window motor
5	A	Power window motor signal, open	Passenger's window motor

Pin assignments at plug connector X1130

Pin	Type	Description / Signal type	Connection / Measuring notes
1	A	Actuating signal, outside mirror drive	Outside mirror, passenger's side
2	A	Actuating signal, outside mirror drive	Outside mirror, passenger's side
3	A	Actuating signal, mirror adjustment	Outside mirror, passenger's side
4	A	Actuating signal, vertical mirror adjustment	Outside mirror, passenger's side
5	A	Mirror heating	Outside mirror, passenger's side
6	A	Actuating signal, horizontal mirror adjustment	Outside mirror, passenger's side
7	A	Ground, mirror heating potentiometer	Outside mirror, passenger's side
8	A	Microswitch ground supply	Outside mirror, passenger's side
9	E	Mirror disengaged signal	Outside mirror, passenger's side
10	E	Mirror potentiometer, horizontal	Outside mirror, passenger's side
11	E	Mirror potentiometer, vertical	Outside mirror, passenger's side
12	A	Mirror potentiometer, positive	Outside mirror, passenger's side

Pin assignments at plug connector X1131

Pin	Type	Description / Signal type	Connection / Measuring notes
1	A	Unlock motor signal	Central locking (ZV) drive passenger's door
2	A	Signal Memory switch Passenger's door	Passenger memory switch
3	E	Open window signal	Passenger's door power window switch
4		Not used
5	A	Signal Memory switch Passenger's door	Passenger memory switch
6	A	Signal, passenger's door contact	Passenger's door contact
7		Not used
8		Not used
9		Not used
10	A	Signal, lock motor	Central locking (ZV) drive passenger's door
11	E/A	P-bus signal line	P-bus connector
12	E	Close window signal	Passenger's door power window switch
13	A	Signal Memory switch Passenger's door	Passenger memory switch
14		Not used
15		Not used
16	E	Signal, motor position	Central locking (ZV) drive passenger's door
17	E	Signal, anti-jamming system	Jamming protection switch, passenger's side
18	A	Signal, memory LED	Passenger memory switch

[umd]

It's been acting that way since I started trying to resurrect this beast months ago, with many battery disconnections and no change in behavior. I had thought that maybe once I chased down all the diagnostic codes it may magically start working, but no dice. Anyway, I had found a module on ebay for like $15 and gave it a shot. Came today and I put it in, and now my mirror dips and returns. Yay me. Now to figure out the central lock switch...

[Mayorchuck]

Good to hear. My central lock and flasher switches were like many, full of crud from spilled soda and such over the years.

[umd]

Good to hear. My central lock and flasher switches were like many, full of crud from spilled soda and such over the years.

I know the central lock isn't the switch. I assumed it was so I changed it out, twice. It must be a module. I believe it's the General Module III? I also realized I'm having some trouble with the interior lights and I believe that's the same module, so...

[Mayorchuck]

The GM connectors can get wet via clogged sunroof drains. It's not that common as the water usually just makes it's way under the seat where the fuse block and connectors are but it's worth unplugging and checking the pins for corrosion.