2004 bmw z4 wiring

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tjtinter

Member - Posts: 6

Joined: January 20, 2009

Location: Kansas, United States

Posted: May 22, 2012 at 8:40 AM / IP Logged

I'm having problems finding the correct lock/unlock wires, and the brake wire. According to the schematic I have these wires do not match up. Also at the brake switch I can't get any one of the 4 wires to test positive when the brake is applied. I have checked this with the key on too. If anyone could help out in any way it would be greatly appreciated......thanks....

@lw@yz$uited

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howie ll

Pot Metal - Posts: 16,466

Joined: January 09, 2007

Location: United Kingdom

Posted: May 22, 2012 at 5:35 PM / IP Logged

Look in the loom coming from the driver's door at the driver kick panel, WHITE/ black lock and RED / blue unlock. Both NEG (-) extend the lock time pulse for windows and possibly roof.

Brake wiring on this model is BLACK/ blue on one side (front to rear carpet edge loom) and black blue the other side.

Trunk trigger is WHITE/ brown (-) and trunk release is grey/light green (+ 5 amps) both in right hand side floor loom.

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howie ll

Pot Metal - Posts: 16,466

Joined: January 09, 2007

Location: United Kingdom

Posted: May 22, 2012 at 6:31 PM / IP Logged

Update, the BROWN / grey at the 4 pin junction at the brake switch is the brake wire when ignition is on, I was thinking of the European version.

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2004 bmw z4 wiring

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