Brake lights wont work. Replaced light bulbs and one plastic holder. Still nothing.. did not check brake switch yet.
I have a 2001 330XI. The Brake Lights are stuck on....the ABS comes on the dash intermittantly, could this be 2 seperate things? Brake Light switch and the ABS Sensor(s)? Any Advice?
For the e36 you need a power probe in order to see if you have a power or ground problem.As for the abs problem you need to scan for trouble codes then clear them and read again then start with the present codes. You might have to run a live data to if the sensors are working properly
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If 3rd light working then brake switch is not the problem, so it is looking like a wiring problem near to the rear light cluster. Run a live feed to the brake lights to rule out a faulty bulb holder. Probably not a ground problem as tail lights work, but wouldn't hurt to check that out.
Dull or Dim Brake Light Repair: If your car has a dull or dim brake light it is dangerous to you and other drivers. A dim brake light is a mystery to most people because the bulb is working, just not correctly. First confirm a new and correct brake light bulb has been installed. Next, turn the ignition key to the "on" position and have a helper depress the brake pedal. With the bulb installed touch a grounded test light to the outer bulb holder ring. If the bulb brightness changes the bulb socket ground has high resistance and needs to be repaired or replaced.
Flickering Brake Light Bulb Repair: A flickering brake light bulb can be very distracting and annoying. A brake light flickers because the power or ground is being obstructed momentarily. The most common cause for this condition is a loose fitting bulb socket. To check for this condition remove the brake light bulb in question, while a helper hold their foot on the brake pedal move the bulb around slightly in the socket. If the bulb flickers replace or repair the bulb socket as needed to regain proper brake light bulb operation. If the brake light bulb socket tests ok wiggle the brake light fuse and wiring at the brake light bulb socket, brake light switch and turn signal switch (American cars). If the brake light bulb flickers repair the component or wiring as needed. Preferred Procedure: Always replace brake light bulbs with manufacturers recommend replacement bulbs. If you cannot find the correct replacement bulb part number consult an auto parts store for additional manufacturer information. Common Problems
When brake light bulbs are replaced with the incorrect bulb causing no or dim brake light operation If the brake lights stay on continuously it could mean the brake light switch has failed or an adjustment is needed.
If the other brake and turn lights are working the brake light and flasher units are ok . With a test light check at the bulb holder terminal and bulb holder body, test light should glow ,if not check from terminal to a metal part of panel away from the light body . If test light now glows the brake light body has a bad earth if the test still not glowing the power cable to the light is broken.
TEST FRONT RIGHT BLINKER CIRCUIT AND REPLACE THE BULB,,WITH PROPER BULB...A DOUBLE CIRCUIT BULB IN A SINGLE SOCKET WILL DO THAT ALSO A SINGLE SOCKET BULB IN A DOUBLE SOCKET HOLDER....CHECK LEFT SIDE BULB FOR ACURANCY
on either side of the boot interior, there are what look like air vents. these clip out from the top (with a flat screwdriver) you then unbolt the light unit, pull it out. the bulb holder then unclips easily.