albert_ey Posted February 21, 2007 Share #1 Posted February 21, 2007 I replaced a bad fuse for my radio on my 1973 240z, after doing so, all lights and gauges on my dash (except speedometer and ammeter) stopped working. Also my parking lights and turn signals stopped working. The brake lights and head lights work fine. I checked all the fuses with a multimeter and I replaced all the bad ones, still nothing. I don't know where to look next. I ordered a wiring diagram, but thought I'd ask while I wait for it to be delivered. Thanks in advance. Link to comment Share on other sites More sharing options...
3RD STRIKE Posted February 24, 2007 Share #2 Posted February 24, 2007 Hey Albert, i went to the junk yard to day. I found a 74 260 z. I think it might be close to yours. It had a fuseable link box close to the battery. Are you sure that yours didnt have one and maybe the previous owner took it out and just by passed it? Link to comment Share on other sites More sharing options...
Ramses Posted February 25, 2007 Share #3 Posted February 25, 2007 3rd strike, My '73 did not have any fusible links next to the battery. The '73 is a bastard car, because all the electrical parts are different than any other year. Albert_EY, it sounds like something is wrong with our combo switch. If you dont have one, get a FSM (factory service manual) and use the wiring diagram to trace your wiring, also check your dimmer on the bottom side of the dash to the right of the steering wheel. you may have turned it down. Good luck...It took me about 3 weeks to completely go through my electrical system, but it was worth it...even my rear defrost works, now. Link to comment Share on other sites More sharing options...
3RD STRIKE Posted February 25, 2007 Share #4 Posted February 25, 2007 ramses,The 74 is even different? Its amazing that 2 cars can have the exact same symtoms and not even have the same parts. I guess you learn some thing new every day. Link to comment Share on other sites More sharing options...
albert_ey Posted March 2, 2007 Author Share #5 Posted March 2, 2007 I bought a wiring diagram off ebay, I haven't had the time to work on it... I think I have the service manual... It was in the car when I bought it. I will repost the results. Thanks everyone.P.S. I checked the dash dimmer, it didn't do anything... I was wondering what those knobs were for... Link to comment Share on other sites More sharing options...
TomoHawk Posted March 2, 2007 Share #6 Posted March 2, 2007 When people talk about the FSM (Factory Service Manual,) it's totally different than any regular book, like the Chilton's or Hayne's books. The FSM is about 1000 pages, give or take, and is specific to your year and/or exact model. You can get the FSM in print, or on CD.The wiring diagrams can sometimes be found at the library. The Mitchell's books have good wiring diagrams, IMO, and they are big enough to read without a magnifying glass.thx Link to comment Share on other sites More sharing options...
Reddog929 Posted March 6, 2007 Share #7 Posted March 6, 2007 I'm rewireing my car (70) with a painless wireing kit but keeping the steering conections as is. It was hard to figure out the wiring. I found the best diagram 11 by 17 and color coded. It's great and easy to read. Check out this web sight. www.slash5.com. Link to comment Share on other sites More sharing options...
Mike Posted March 6, 2007 Share #8 Posted March 6, 2007 I replaced a bad fuse for my radio on my 1973 240z, after doing so, all lights and gauges on my dash (except speedometer and ammeter) stopped working. Also my parking lights and turn signals stopped working. The brake lights and head lights work fine. I checked all the fuses with a multimeter and I replaced all the bad ones, still nothing.I'm not positive on this, but, it's either your switch or another fuse inside the dash. I discovered two additional fuses behind the radio area when I was working on the wiring a few weeks ago. I think one of the fuses is for the radio, but, I am unsure where the other fuse connects.I had the same problem after going to the show this weekend. I'll have to dig around and find it. Let me know if you discover the problem before I am able to give an update. Link to comment Share on other sites More sharing options...
zman112233 Posted March 6, 2007 Share #9 Posted March 6, 2007 Try playing with the combo switches. Mine had the same problem and fulling with the switches fixed it. Link to comment Share on other sites More sharing options...
beandip Posted March 6, 2007 Share #10 Posted March 6, 2007 Send a PM to escanlon Link to comment Share on other sites More sharing options...
albert_ey Posted March 8, 2007 Author Share #11 Posted March 8, 2007 I might have figured this out. I tried starting the car yesterday and it wouldn't start, I put another battery in and it started right up, I disconnect the battery and the car turns off... alternator, right? I take the alternator to the local Auto Zone to get it checked and the darn thing is ok. It turns out that a few days before the radio thing, My dad changed one of the radiator hoses and in doing so the corroded ground cable for the alternator broke apart and off. I haven't had the time to replace the wiring for that. But hopefully that is all. Do you guys think that is possible? Link to comment Share on other sites More sharing options...
albert_ey Posted March 8, 2007 Author Share #12 Posted March 8, 2007 oh and I found a switch inside where the fuse box is and tried switching it "on/off" and I didn't see any difference. I'll check as soon as I get the alternator thing done. Thanks everyone! Link to comment Share on other sites More sharing options...
zKars
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