Hey my rear lights have all of a suden stopped working are there a few things i can check myself to get them working again. the front ones are working fine and none of the back ones are but the bulbs seem ok. i own a 96 commodore sedan. i';ve just selected a random car in the option because holden isn't there.

Probably either a connection under the vehicle in the loom or a bad ground.

perhaps you have a shorting wire. check carefully, my ABS always used to come on for no reason during driving and it turned out there was 2 terminals bent together and touching.

The rear blower and the brake lights might not be related troble. The rear blower has a ballast resistor that can fail and it's next to the blower motor in the rear heater housing. The blower motors are also known to go bad so wrapping on it with it turned on might( wake it up) and it'll start woring again as a poor connection shaken or the worn motors brushes shaken down where they make connection again. Then you say the rest of the lights work do you mean that the brake light bulbs come on with the hazard swich entergized? or do the rear lights just light yellow turn lights only? I'd check or even replace the brake light buld=bs before I'd do anything else.their are other things that don't work if the fuses were involved and the same goes for the heater rear blower as the front blower uses the same fuse.

ECM ground is one of a few causes for this condition. Check ground wire passenger side rear of block. Remove bolt and inspect condition of wire. Most times will need to replace 8in of wire

Check your fuses underneath the drivers side steering wheel. Flip the plastic cover over and there will be a diagram showing the fuse that controls the taillights/stoplamp. Pull the fuse out and replace it with the same number fuse and your taillights and brake lights will work again. If the fuses are ok, pull each taillight bulb out and replace it with a new bulb. Sometimes when one light bulb fails, all of them will fail.

sounds like to me its a abs sensor or reluctor ring problem the 2 main culprits are the front abs sensor link leads one maybe open circuit or the rear driveshaft reluctor is corroded and broken you need to get the fault codes out to help decide which i would check the reluctor rings first if you look carefully at the rings with a torch and probe with a small screwdriver between the rear driveshaft joint and the hub carrier you may find the reluctor ring is adrift

Did just one side stop working or both? Check the bulbs (front and rear). Check the signal relay (should be in the fusebox). Also look for any related fuses. One other thing is it could be the turn signal switch itself. Likely it's going to be one of those things. Start with the easy stuff - bulbs, fuse, relay. Good luck.

is the check engine light on,if yes scan codes,it will point you to problem area

I am having/had the same problem. My rear heater has not worked the last 2 winters, still trying to figure that one out. But I think I solved the front heat problem myself. The heater was blowing cold air while idling and hot air when the car was moving.

I jacked up the front of the vehicle, took the cap off of the reserve tank for the radiator, turned the car on and ran the heat (AC off) for 15 minutes. This is supposed to release any air bubbles in the coolant system and I did see air bubbles emerge as I was watching (this might be normal occurance, I'm far from a mechanical expert). Anyway, this did not immediately solve the problem, still blowing cold air as it sat there idling after 15 minutes. Dejected, I put the cap back on, lowered the vehicle and resigned myself to taking it to a dealer.

But a funny thing happened the next day, the coolant level was a lower (no leaks on the floor) so I filled up, and sure enough, when I started the car and let it warm up a little, hot air started coming out of the heater!!!

As far as my wife knows, I fixed the problem for the price of a bottle of coolant, so I am a hero...but at first I thought it didn't work. Here we are a month later and still blowing warm air and haven't had to replace any more coolant...the internet is a wonderful thing!

Hope this works for you, and I hope I can figure out my rear heater problem as well.

sounds like the bulb you have is the wrong resistance the new noen bulbs will do this