Loose wire fun

[Jeeprogue]

Ok guys, so i have been trying to diagnose my power locks not working, ( trunk already fixed, relay and comfort moduel replaced) and i was told about a switch that needs to be pushed by the factory radio, so in the process of checking this, i found a cable with about 10 small wires that appears to be missing a connector and ends near the back of the radio and i have no idea what it is and cant help but to think it is related, any ideas as to what it might be?

[1996 328ti]

Can you take a picture of it?
I had my radio out recently and maybe it will remind me of something.

[Jeeprogue]

here is a picture, i should also add it isn't for the radio or the climate control module.

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[1996 328ti]

Originally Posted by Jeeprogue

Attachment 14708 here is a picture, i should also add it isn't for the radio or the climate control module.

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It's also not a 318ti.

[Jeeprogue]

Yea, shes a 318is, most of the other forums aint to friendly to those of us with the 4 bangers, its a shame really, shes an excelent motor.

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[1996 328ti]

My uneducated guess since that looks like a braided shielded cable, it's audio.

[Jeeprogue]

Your guess is correct, upon further investigation it is for the cd changer, so its unrelated, now to figure out why the locks dont work.

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[John Firestone]

It might help to know: 1) the month/year your car was built and 2) the problems you mention you have already addressed, and how you addressed them.

A comfort relay, for example, suggests a pre-9/95 coupe.

[Jeeprogue]

Sorry, shes a 1997 318is prod month 10/96. I replaced the comfort module, the locking relay, and the alarm module, ive repaired the trunk harness and the comon floor wires on the drivers side were pristine, so i am now at a compleat loss

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[John Firestone]

By comfort module and locking relay, do you mean just the general module / central chassis electronics (ZKE), with three connectors on the front, that lives behind the glovebox. Or something else or that and something else?

What was wrong with the trunk harness (including wire colors and sizes, if you can remember them)?

[Jeeprogue]

Yes that guy, and the comon pench point for the wires by the lid. Various wires were either broken or missing there insulation, they have all been re soldered.

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[John Firestone]

Is that a picture of your car and its broken wires? (I just want to make sure.)

[Jeeprogue]

Yes, that is my car, and those were the broken wires, they have been repaired.

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[John Firestone]

Got it, although I am not sure how long that repair will last if you haven't replaced it with something more permanent.

O.K., I wonder if the broken wires caused a short that burned out wiring elsewhere and/or the ZKE.

At this point, I would print out the ZKE central locking system pages of the BMW ETM, section 5126.0, unplug ZKE connector X13252 and measure the resistances of each of the three locking bus wires, to ground and to each other, a total of six measurements on the plug:

• pin 1 to ground
• pin 1 to 2
• pin 1 to 9
• pin 2 to ground
• pin 2 to 9
• pin 9 to ground

[Jeeprogue]

Alright, im at work atm, il uodate you with the results in a couple of hours

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