turn signal wiper/washer stalk switch wiring help

[billpatterson]

Hi there

I am moving into the interior and hooking up the left side and right side stalk switches. The left side is fine. The right side stalk switch for the turn signals and wiper/washer has a few extra wires in addition to its square plug and the contact ring for the signal lights.

1) The black wire with the insulated 90 degree female connector, if my memory is correct, reaches up under the dash and connects to the back of the gauge cluster. If this is correct, please confirm as there is only one empty male connector on the back of the gauge cluster. If it is wrong, please correct?

2) I can not remember where the grey wire with the clear insulated female connector connects to. And I did not record this during disassembly. Also, under the dash is a silver cylindrical switch/relay/? (in picture too). Does the grey wire connect to the silver cylindrical switch/relay/? ? If so, what is this circuit?

Thanks again!

Bill

[Mike Self]

Bill--answers below are predicated on your 71 having a six fuse fusebox, right side steering column stalk only has a "wash/wipe" function (not wiper on/off) and there's an ign key warning buzzer, but no "fasten seat belts" light or buzzer. If this is not the case, pay no attention to what's below, as the 12 fuse cars' wiring is different.

1) The black wire with the insulated 90 degree female connector, if my memory is correct, reaches up under the dash and connects to the back of the gauge cluster. If this is correct, please confirm as there is only one empty male connector on the back of the gauge cluster. If it is wrong, please correct?

A. From your picture, this wire is encased in a black sleeve; the wire's real colors are visible between the sleeve and terminal, but I can't make 'em out. If you'll post the color of the wire, I can track it down.

2) I cannot remember where the grey wire with the clear insulated female connector connects to.

A. According to my factory wiring diagram, the grey wire goes to terminal P on the ign switch.

Also, under the dash is a silver cylindrical switch/relay/?

A. This is the "key in ign with door open" buzzer. If it annoys you, disconnect it at the driver's dome light door switch.

Does the grey wire connect to the silver cylindrical switch/relay/? ? If so, what is this circuit?

A. No--see above. According to my diagram, a red with white tracer wire runs from the buzzer to fuse 4, and a brown with green tracer runs from the buzzer to the ign switch.

Hope this helps...

mike

[billpatterson]

Hi Mike

Thanks for the responses! The car is a '71 with a 12 fuse fusebox.

I will find the colour of the wire cased in a black sleeve and repost.

Regards

Bill

[billpatterson]

Hi Mike

The wire with the black cover is a green wire with a white strip.

And...to my surprise because I do not remember prying off that connector to get the stalk switch off the column...there is an available male connector on the back of the ignition switch. I can not see how its labelled though.

That warning buzzer never worked. Gonna leave it alone or fix it but a very low priority.

Thanks again!

Bill

[xferboy]

If I remember correctly, the shorter wire goes to the ignition switch (center-ish??) and the longer goes to the buzzer.

This is all based off memory from working on it 6 months ago, and I'm 4200 km from my car so I can't check. (73 with 12 fuses)

Allan

[Mike Self]

car with a 12 fuse wiring harness and a VIN beginning with 257, indicating a US spec car. Whole different ballgame re wiring. If it has a different VIN prefix then it's a Euro model. Presuming then it's a US spec car with a 257 VIN:

The buzzer: brown with green tracer (brown/green) wire goes from the buzzer to the ign switch; red with white tracer goes from the buzzer to the turn signal switch plug, terminal 5.

Interestingly, the factory wiring diagram shows 9 terminals on the turn signal/wiper switch and 9 terminals on the plug that serves it. That grey wire doesn't appear in the diagram. Neither does the green wire with the white tracer and the black plastic sleeve. I can't find a green/white wire anywhere near the

If those wires deal with a seat belt warning light, I've observed that the factory wiring diagram--at least for the roundies--don't show that wiring at all. Found that out while tring to find a short in fuse 11 circuit on my '73. Turned out to be the sensors in the seat that triggered the seat belt light were shorting out--and the wire wasn't in the diagram. but if you have a true '71, it probably doesn't have the seat belt warning light--don't think that was added until 1972.

You might test the green/white wire with a voltmeter to see when it's live; there is a green/white wire that runs from fuse 11 to terminal 6 on the multiprong plug behind the instrument cluster, but I don't think it has a female terminal on it, as the wires entering that plug are crimped in place. If you trace that wire back from the plug, it goes to an unused insulated terminal up under the dash near the hood release handle. It's meant to power the electric fuel pump on a tii.

Hope the above helps--let us know what you find. Factory wiring diagrams aren't always accurate!

cheers

mike

[billpatterson]

Hi Mike

Thanks again for your time! The VIN is 2573340. Interesting stuff and fun times!

- No seat belt warning light so that's not it.

- I will track down the red wire for the warning buzzer or disconnect it completely.

- I will trace back the green/white wire and figure out when it is live.

- BTW - there is a male connector on the back of the gauge cluster that is not used when the gauge cluster is connected to the multiplug...I follow that lead also.

I will post what I find out.

Cheers

Bill

[Mike Self]

terminal on the back of the tach housing? If so, there should be a black wire somewhere back behind the cluster that runs either to the dizzy or the coil. That's what powers the tach.

mike

[billpatterson]

Hi Mike (and all)

Solved. I found a picture amongst the literally 1000s I have taken during the resto. It is below and is a close up of the back of the ignition switch and the wires off the wiper washer stalk switch. It shows the location of the grey mystery wire.

Also, digging deep into the Forum, I found a reference to the green/white in a black covering off the wiper washer stalk. See link below. Forum members have found it unconnected (too), and have indicated that it may be required for euro car's nighttime on-street parking lights.

http://www.bmw2002faq.com/component/option,com_forum/Itemid,57/page,viewtopic/t,365972/highlight,washer+switch+wire/

Regards

Bill