Author Topic: Strange electrical problem  (Read 895 times)

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Barny

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Strange electrical problem
« on: December 03, 2010, 07:54:19 AM »
I have a strange and intermittant electrical problem and would appreciate any ideas. Car is a 2000 TJ 2.5 Pertrol. I went out today today see my daughter and the turn indicators were not working. Did a bit more research and discovered that the wipers were also dead. After about an hour of driving around like this they both started working again. Parked up for a couple of hours, then went to head home and both were dead again. Lights, horn and everything else seemed OK. Got home all still dead tried wiggleing all the fuses no change. Went and got a coffee came back and they were working again.
Any ideas much appreciated.

Offline sharpxmen

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Re: Strange electrical problem
« Reply #1 on: December 03, 2010, 08:41:57 AM »
I have a strange and intermittant electrical problem and would appreciate any ideas. Car is a 2000 TJ 2.5 Pertrol. I went out today today see my daughter and the turn indicators were not working. Did a bit more research and discovered that the wipers were also dead. After about an hour of driving around like this they both started working again. Parked up for a couple of hours, then went to head home and both were dead again. Lights, horn and everything else seemed OK. Got home all still dead tried wiggleing all the fuses no change. Went and got a coffee came back and they were working again.
Any ideas much appreciated.

sounds like the accessory circuit off your key contact (if all the fuses are ok). On my YJ there are 3 fuses fed from that circuit: 1. winshield wipers motor and intermittent control module, 2. turn signal and 3. Cigarette lighter and Radio

On the YJ fuse block there is a circuit braker that powers the winshield wipers (not a fuse), not sure if that's the case on the TJ or not - but if both turn signal and wipers aren't working and just by analogy with the YJ setup I am guessing it's a key contact problem for Accessory power (so the Run circuit is fine as your gauges and engine work).

Check if your hazards are working (they should) and if your radio is working (if it's the same as mine it shouldn't if my assumption is correct).
'95 YJ, NSG370 6spd / Hurst shifter, Dana 300 + 4:1 Doubler / tri-stick, Custom skid, Super D35 / Auburn LSD / 4.88, 35x12.5x15 BFG KM2, 64mm t/b, 1.7 RollerRockers, MkVIII e-fan, Dual Diaph Booster
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Barny

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Re: Strange electrical problem
« Reply #2 on: December 03, 2010, 09:39:15 AM »
OK Hazards were working OK didnt check the radio, all working again at the moment will check radio next time I can make it fail. It looks like a faulty switch then. I bet they cost a fourtune!!!

Offline sharpxmen

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Re: Strange electrical problem
« Reply #3 on: December 03, 2010, 11:51:17 AM »
keep in mind that all this is based on my YJ knowledge so please verify first that that's the case for your TJ as well - most likely but i won't be able to tell for sure.
'95 YJ, NSG370 6spd / Hurst shifter, Dana 300 + 4:1 Doubler / tri-stick, Custom skid, Super D35 / Auburn LSD / 4.88, 35x12.5x15 BFG KM2, 64mm t/b, 1.7 RollerRockers, MkVIII e-fan, Dual Diaph Booster
Latest: Corbeau BajaRS heated seats :dance: keeping warm the rear end

Offline sharpxmen

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Re: Strange electrical problem
« Reply #4 on: December 03, 2010, 11:58:45 PM »
keep in mind that all this is based on my YJ knowledge so please verify first that that's the case for your TJ as well - most likely but i won't be able to tell for sure.

it is the same, i just found the wiring for 2000 TJ



RUN-ACC A31 circuit powers wipers, turn signal and radio (just like in the YJ) and it comes from the ignition switch to the fuse box at fuses 13, 14 and 15
« Last Edit: December 03, 2010, 11:59:46 PM by sharpxmen »
'95 YJ, NSG370 6spd / Hurst shifter, Dana 300 + 4:1 Doubler / tri-stick, Custom skid, Super D35 / Auburn LSD / 4.88, 35x12.5x15 BFG KM2, 64mm t/b, 1.7 RollerRockers, MkVIII e-fan, Dual Diaph Booster
Latest: Corbeau BajaRS heated seats :dance: keeping warm the rear end

Barny

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Re: Strange electrical problem
« Reply #5 on: December 04, 2010, 06:10:51 AM »
Thanks for that. Its still working at the moment but think I'm going to get a new switch on order.

Offline sharpxmen

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Re: Strange electrical problem
« Reply #6 on: December 04, 2010, 08:29:59 AM »
Thanks for that. Its still working at the moment but think I'm going to get a new switch on order.

could also be the connector or the link in the fuseblock (aside of the most obvious one which is the switch), up to you but i would make sure first before spending the money on a new switch.
'95 YJ, NSG370 6spd / Hurst shifter, Dana 300 + 4:1 Doubler / tri-stick, Custom skid, Super D35 / Auburn LSD / 4.88, 35x12.5x15 BFG KM2, 64mm t/b, 1.7 RollerRockers, MkVIII e-fan, Dual Diaph Booster
Latest: Corbeau BajaRS heated seats :dance: keeping warm the rear end