300ZX (Z32) Performance / Technical Discussions related to Turbo charging, Supercharging, Engine, ECU, exhaust, and etc. performance enhancements and Techical related.

infamous highbeams

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Old Sep 28, 2012 | 04:59 PM
  #1  
zackyv55146's Avatar
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From: cheyenne, wyoming
infamous highbeams

hey guys need some help my highbeams are stuck on no dash lights or taillights till ibrake ireplaced the switch and illuminated fuse any ideas plz i kno people talk alot about this but never hear how to fix im goin crazy
Old Sep 30, 2012 | 02:33 PM
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Some one plz! I know this topic gets old but im at a loss here idk wat else it could be fuses are fine order a new turn signal switch but still don't think that it pulled the passenger fender to look for shorts any one plz!
Old Sep 30, 2012 | 04:33 PM
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Are the high & low beams on at the same time?
Old Sep 30, 2012 | 06:51 PM
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Just the highbeams I've checked fuses,relays,changed my switch haven't found any messed up wires I tested the pink/black and pink and have power to them but no power to the red/blue wire and idk why its driving me crazy
Old Oct 2, 2012 | 03:37 PM
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Ok so update if I ground the low beams they turn on but the highbeams are still on to any thoughts??
Old Oct 2, 2012 | 04:15 PM
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Break them who needs high beams!
Old Oct 3, 2012 | 03:20 PM
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Its a fuse.. i had the same problem but my problem is with my radio there has to be a shorted wire somewhere..
Old Jan 30, 2013 | 07:35 PM
  #8  
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I can almost guarentee that your problem is your TCU(Time Control Unit). It's located underneath the steering column on the side where your left foot would sit. What I mean is, sit in your car, and move your left foot left until you hit the side. That's where your TCU is located. Pull that off, and it's a white box.

I had this same problem and took it apart, turned out that there was a burned out line on the circuit board, and I just soldered a wire in it's place instead.
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