no turn signals. brake lights dim
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no turn signals. brake lights dim lengryske 04-05-2008, 03:53 PM
We have no turn signals... we do have hazards... the barek lights are very dim . It seems like a grouding issue but I cannot loacte the problem. Any advice is appreciated. Thanks, Len KimMG 04-06-2008, 06:37 AM First you need to make sure you are getting power to the lamps. You may also have two separate problems. Common problem: The turn signals and brake lights have a common power source, the third fuse. Is there anything else not working? Turn signals: Since the hazards are working, the grounds must be ok. Hazard lights get power from the brown wire circuit, whereas the turn signals get power from the green wire circuit. Someone else recently had the same problem. Some trouble shooting steps can be found in the following thread. http://www.mgexperience.net/phorum/read.php?1,751251,751271#msg-751271 Brake lights: Have you checked for power to the sockets? Have you checked the input and output of the brake light switch? High resistant connections can cause voltage drops. The following thread shows that a failing brake light switch caused the problem. http://www.mgexperience.net/phorum/read.php?1,727386,728595#msg-728595 Wiring diagrams are available at http://www.advanceautowire.com click on stock schematics. You will need a copy of the wiring diagram and a meter or test light to correctly diagnos the fault. In the future, please include the model year when requesting assistance. Not all Bs are wired the same. lengryske 04-09-2008, 06:01 AM I do believe this may be a ground problem. We have found one wire and grounded it and now the turn signals work but are very dim. Prior to this there was no signal at all either on the dash or at the lights themselves. Where would the primary ground points be? KimMG 04-11-2008, 11:35 PM Do you have a multimeter? What color was the wire you connected to ground? If you looked at the wiring diagram, you would have noticed that the hazards and the turn signals use the same bulbs, grounds and much of the wiring. In some years the grounding point for the rear is located inside of the trunk and secured with one of the license plate screws. The grounds for the tail lights can also be done through the housings. After years, due to corrosion, the housings won't provide a good ground, so you may have to attach ground wires to the bulb sockets. After cleaning a connection, apply dielectric grease to prevent future corrosion. barefootcontessain 07-04-2008, 07:02 PM We have no turn signals... we do have hazards... the barek lights are very dim . It seems like a grouding issue but I cannot loacte the problem. Any advice is appreciated. Thanks, Len Len look in the trunk, bent over, and up inside to your right. There is a cannister there and when the hoses are cracked or missing you have to replace them as they have something to do with the lights also. The cannister is emission exhaust stuff and there should be 2 hoses; 1 from tank to cannister and 1 from cannister to fuel pump located in the front right corner of the trunk compartment. Heather Related Links Enter the largest automotive community on the planet! |