choombs Posted June 23, 2014 Share Posted June 23, 2014 Hey guys, I know there are heaps of threads about this already. But none have solved my problem. I have put a multi on the switch and it is good and bulbs are good. Was just wondering if anyone has a wiring diagram and know where the fuse is located? Link to comment https://www.sau.com.au/forums/topic/444787-r33-reverse-lights-not-working/ Share on other sites More sharing options...
89CAL Posted June 23, 2014 Share Posted June 23, 2014 Theres a plug in the engine bay, just in front of the fuse/relay box. It joins the gearbox harness to the rest of the car. Mine was dirty and my reverse lights sometimes went funny then all of a sudden stopped Link to comment https://www.sau.com.au/forums/topic/444787-r33-reverse-lights-not-working/#findComment-7319545 Share on other sites More sharing options...
R32Abuser Posted June 24, 2014 Share Posted June 24, 2014 (edited) Simplistically, I would imagine the following: Switch at the g/box globe at the rear of car fuse in the engine bay and wiring to join it all together... If you've multi'd the switch (when closed!), checked that the globes actually light up under a power source, then there is only the the wiring and the fuse to check. That being said, did you check the switch for continuity? I found with my box/switch (R33 RB25), the only way I could verify that the switch was good was using a test light and a mini 12V battery. Multimeter did not display/sound continuity unless powered! Edited June 24, 2014 by R32Abuser Link to comment https://www.sau.com.au/forums/topic/444787-r33-reverse-lights-not-working/#findComment-7320158 Share on other sites More sharing options...
Ben C34 Posted June 24, 2014 Share Posted June 24, 2014 And check the plug as 89CAL had said. Link to comment https://www.sau.com.au/forums/topic/444787-r33-reverse-lights-not-working/#findComment-7320172 Share on other sites More sharing options...
choombs Posted June 24, 2014 Author Share Posted June 24, 2014 Thanks guys, will recheck everything again and check the plug this time! Link to comment https://www.sau.com.au/forums/topic/444787-r33-reverse-lights-not-working/#findComment-7320804 Share on other sites More sharing options...
Daniel_33 Posted June 25, 2014 Share Posted June 25, 2014 My reverse lights work for a second when I put it into reverse then go off. Not sure what it is they used to work when I pulled and held the gear leaver back but now they only work for the second when I first put it into reverse. Any one had this before? Thanks Link to comment https://www.sau.com.au/forums/topic/444787-r33-reverse-lights-not-working/#findComment-7321548 Share on other sites More sharing options...
R32Abuser Posted June 25, 2014 Share Posted June 25, 2014 dodgy ground? dodgy terminal/plug/pin? Link to comment https://www.sau.com.au/forums/topic/444787-r33-reverse-lights-not-working/#findComment-7321552 Share on other sites More sharing options...
Daniel_33 Posted June 25, 2014 Share Posted June 25, 2014 Are these easy to locate? Thanks Link to comment https://www.sau.com.au/forums/topic/444787-r33-reverse-lights-not-working/#findComment-7321554 Share on other sites More sharing options...
R32Abuser Posted June 25, 2014 Share Posted June 25, 2014 (edited) Locate - Yes. Troubleshoot - depends on how mechanically/electrically minded you are! There is a plug at the reverse switch (on the gearbox) and in the engine bay where it joins back into the wiring loom. Ground - I'd have to take a look and the wiring diagram to see exactly where the circuit is grounding. Something I neither have the time or the patience for at this time of the night. Edited June 25, 2014 by R32Abuser Link to comment https://www.sau.com.au/forums/topic/444787-r33-reverse-lights-not-working/#findComment-7321569 Share on other sites More sharing options...
choombs Posted July 3, 2014 Author Share Posted July 3, 2014 After checking everything again, still couldn't find the fault >. Link to comment https://www.sau.com.au/forums/topic/444787-r33-reverse-lights-not-working/#findComment-7329182 Share on other sites More sharing options...
89CAL Posted July 3, 2014 Share Posted July 3, 2014 Checking.... or cleaning? Did you clean out the plug I talked about? Link to comment https://www.sau.com.au/forums/topic/444787-r33-reverse-lights-not-working/#findComment-7329321 Share on other sites More sharing options...
dyl33 Posted July 3, 2014 Share Posted July 3, 2014 I had a issue with the reverse light switch on the gearbox being faulty, cost about 150 bucks to fix. Link to comment https://www.sau.com.au/forums/topic/444787-r33-reverse-lights-not-working/#findComment-7329391 Share on other sites More sharing options...
89CAL Posted July 3, 2014 Share Posted July 3, 2014 I had a issue with the reverse light switch on the gearbox being faulty, cost about 150 bucks to fix. OP has already said he has tested the switch and it is O.K. Link to comment https://www.sau.com.au/forums/topic/444787-r33-reverse-lights-not-working/#findComment-7329674 Share on other sites More sharing options...
Ben C34 Posted July 3, 2014 Share Posted July 3, 2014 He also checked everything and still doesn't work. .... Something isn't being checked correctly. Link to comment https://www.sau.com.au/forums/topic/444787-r33-reverse-lights-not-working/#findComment-7329688 Share on other sites More sharing options...
89CAL Posted July 3, 2014 Share Posted July 3, 2014 This is true. OP Have you disconnected the Gearbox switch and bridged out the 2 pins in the plug (harness side) to see if that works? Link to comment https://www.sau.com.au/forums/topic/444787-r33-reverse-lights-not-working/#findComment-7329694 Share on other sites More sharing options...
R32Abuser Posted July 3, 2014 Share Posted July 3, 2014 (edited) After checking everything again, still couldn't find the fault >. What did you "check" and how? He also checked everything and still doesn't work. .... Something isn't being checked correctly. Agreed. As I said above, I had issues testing the circuit without having reverse selected and powered. Otherwise I got nothing... Edited July 3, 2014 by R32Abuser Link to comment https://www.sau.com.au/forums/topic/444787-r33-reverse-lights-not-working/#findComment-7329719 Share on other sites More sharing options...
89CAL Posted July 3, 2014 Share Posted July 3, 2014 I've had the wiring diagram out There is a plug at the tail-lights (obviously), a plug drivers side top front of boot (this may be out of sight inside the guard, I'm not real sure), the plug at the front which I mentioned before and then the plug at the switch on the gearbox I cant find what fuse it is tee-ed off, but there are a fair few things powered off the same circuit like the de-fogger relay (rear window) so if thats working I dare say the power source is O.K. Basically just need to test the switch, or bridge out the plug to eliminate the switch completely. Get the lights working without the switch and then you can see if the switch works. If you have power at the switch harness, then the earth is at the tail lights. If you have all the other lights + number plate lights then Earth is most likely not your problem, the Earth is common to all of them. Link to comment https://www.sau.com.au/forums/topic/444787-r33-reverse-lights-not-working/#findComment-7329746 Share on other sites More sharing options...
dyl33 Posted July 4, 2014 Share Posted July 4, 2014 OP has already said he has tested the switch and it is O.K. My switch could test fine to, i could also wiggle the gear stick while in reverse and get reverse lights going for a few seconds. Was very weird new switch fixed it. No idea if that's OP problem. Just a thought Link to comment https://www.sau.com.au/forums/topic/444787-r33-reverse-lights-not-working/#findComment-7330263 Share on other sites More sharing options...
89CAL Posted July 4, 2014 Share Posted July 4, 2014 I was having a similar problem and my switch was fine so it's really anyone's guess what the problem is Link to comment https://www.sau.com.au/forums/topic/444787-r33-reverse-lights-not-working/#findComment-7330588 Share on other sites More sharing options...
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