rmr25

When I got this car about a year ago neither outside mirror nor seat memory functions worked. With the seats currently out of the car, it was a good time to troubleshoot. To take the seat memory function out of the circuit, I jumpered the 14-pin connector per Bill Ball's earlier thread: i.e. pin #1 to 12 and #2 to 14. Still got nothing at the mirror control. I do have 12.4 v. at the 14-pin connector. With the plugs removed from the mirror switch, I've got 12.v at the l/r rocker switch and at the 6-pin connector I've got .5 v at pins 3,5, 4 and 6. On the surface, it looks like power is ok. Is there something else I can test before trying a switch replacement? The WSM wiring diagram is, of course, beyond me!

Alan

So you need to tell us a bit more...

Is it just the memory functions that don't work or the mirrors in any mode?

It is quite unlikely to be either switch unless only one direction / side doesn't work... if the manual modes work - it is certainly not the switches that are at fault.

With the seat unit connected - does the memory button ever light up when you press it? - have you checked the connections to it?

Alan

Mrmerlin

if you have a small solder iron you might try to resolder all of the connections in the memory module, from past experience it seems this was a poorly soldered part and a refresh will usually restore the module to operatiing condition, plus you dont have to buy any parts. while things are apart you might want to see if both mirror motors work with 12 power. Alan can point you in the right direction to test the motors

rmr25

Guys:
Thanks for the responses. Here's what I've got :
1. Memory functions don't work for either seat or mirror.
2. Mirrors don't work in any mode.
3. Memory light does not come on when memory button pushed.

All I really want is to be able to adjust the mirrors "manually" (i.e. have the
mirror motors respond to tilt/turn inputs from the control button). At the moment adjustments are really "manual", meaning I physically push the mirrors to the correct angles. I don't care about the seat memory function.

Alan

Have you check the connections to the mirror control unit - it lives above the hood release on the ouside footwell wall... tricky to get to - there are 3 plugs.

Otherwise first steps are to determine if the unit is getting power.
To do this its easiest oif you can remove the drivers seat - sounds like maybe you altready have? have you also checked all the relevant fuses? I assume so?

Alan

michaelathome

Bob,

Before you buy you are more than welcome to try. I bought a switch foir mine as well. I replaced it and still no workie SO I do have a switch you can use. If you are going to be at Frenzy I can bring it if you are interested.

Also my problem is slightly different. My mirrors and seat's move with the 3 presets/memory but the mirror switch is in op.

Michael

rmr25

Alan: I've got the driver seat out. And obviously the 14-pin connector plug is detached. I was going to ask where the mirror control unit was, but you anticipated that. I'll check the plugs at the mirror control unit. Question: Does the 14-pin seat plug have to be plugged into the connector in order to have power at the mirror control unit? Or does jumpering pins #1 to 12 and 2 to 14 work?

Mike: Thanks for the generous offer I'll not be at Frenzy. But I may call on you later if the switch comes up suspect.

Alan

Best to plug it back in - especially to test the mem control pad - the mirrors should work in manual mode with just the jumpers.

Alan

Mrmerlin

if you have problems with the seats or the memory functiuon then its almost a guarantee thet the mem module is malfunctioning as the mirror power goes thru the module as well as seat power

rmr25

Alan/Mike:
Here's what I've got so far.

- 12v at pin #2 at the 14-pin connector (located at the tunnel crease alongside driver seat).
- 12v at one of the pins at the 5-pin plug that connects to the mirror tilt/turn switch.
- no volts at the 6-pin mirror l/r switch
- No volts at any pin on the 14-pin plug that goes into the mirror control unit. I didn't pull either of the other two plugs, assuming power comes in from the larger 14-pin one. I can't make out from the wiring diagram where the power source is at the mirror control unit plug.

I'll be thankful for any suggestions you have for me. Incidentally, if it's easier for you, PM your reply.

Bob

Alan

OK with the 14 pin seat connector pulled - on the car side of the connector (not the seat) - connect Pin 2 to Pin 14 for power and connect Pin 1 to Pin 12 for ground. Now test the mirror controls.

Mem will not work - basic functions should - do they?

Alan

rmr25

Basic functions do not work. Neither l/r switch or tilt/turn control.

Alan

Well in that case it sounds like there is a problem in the mirror controller... thats the box above the hood release OR also quite likely - its wiring.

I'd test the wiring between the switches & the controller first. There is a set of connectors for the switches (you've been testing those) inside the mirrors for the motors and another set inside the doors (for both switches & mirror motors) - all possible failure locations. Try tracing direct from the switch to the mirror connectors first sounds like you have the diagrams - can you figure out the end to end connectors? if there are failures in these you will need to open up the doors. If these seem good you will need to take the mirror glass off and test the connectors to the motors...

Alan

rmr25

I'll do as you suggest, testing the wire connections between mirror control unit and the two switches. But, before that, isn't it necessary to find out why I'm not seeing 12 v at the control unit? Can you point me to the lead, at whichever plug, that is incoming voltage, as well as ground? The wiring diagram doesn't readily identify the 14-pin plug at the controller unit.

Alan

Well you should test that but with the above jumpers in place you should have power and ground to the mirror control unit - test at its connections. Seems you weren't getting that from the seat control unit when it was plugged in... you should be now (test).

Since the car loom side connections are static and not subject to flexing/weather etc I think these is low risk of damage there...

Without that connection only the one lead on the direction switch should have power. Obviously the mirrors won't work that way.

You may have multiple issues here...

The mirror memory unit when removed has a clear picture of the connector plug pins & functions on its lid - however its a pain to get out/in...

On the Direction Switch - Pin 2 = Power, Pin 4 = Ground (test for voltage between them)

The changeover switch should not have any connection (power/ground) except when the direction switch is in an active position.

On the Mirror controller plugs (large one I think) the Red/White wire is the power supply to the unit (from the jumper you added).. see that is has power. Its the only Red/White there - on the same plug brown is the ground wire. Numbering & plug assignment here is confusing in the diagrams - its much clearer at the main in door connector - middle face of the door - under the plastic seal - dual connectors.

Alan