The message to which you are about to reply is shown first. GO TO REPLY FORM



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

strange brake light problem in '89 760 700 1989

posted by  hevail on  Thu Nov 11 10:23 CST 2004
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS] [RELATED]

I have a 1989 760 with well over 200K miles on it. I just started having a strange problem with the driver-side brake light. This lamp has a dual-filament bulb serving both taillight and brake. I've replaced both this bulb and the passenger-side bulb a few times while troubleshooting this.

As long as the headlights are off (and the taillights are off) the brake light works fine.

If I turn on the headlights, the taillight will come on, but if I also press the brake while the taillight is on, it goes out entirely. The taillight will come back on when I let off the brake. The combination of the taillight and brake light causes the whole lamp to go out.

It gets more strange. If the brake light is on and I turn on the left turn signal (same side) then it will turn out the brake light as the turn signal lamp flashes on. So the brake light and turn signal alternately flash.

Summary, my driver's side brake light will not work at the same time as the taillight (in the same bulb) or the turn signal (on the same side). The passenger side works fine.

I've thoroughly checked all of the fuses and the bulbs. Tried pulling each bulb on both sides to see if they could be interfering, no luck. The bulb warning indicator seems to be working okay. It only comes on when that brake light goes dark. Any ideas?
I need to get this fixed immediately to pass inspection.

Thanks!
Henry






USERNAME
Use "claim to be" below if you don't want to log in.
PASSWORD
I don't have an account. Sign me up.
CLAIM TO BE
Use only if you don't want to login (post anonymously).
ENTER CAPTCHA CODE
This is required for posting anonymously.
OPTIONS notify by email
Available only to user accounts.
SUBJECT
MODEL/YEAR
MESSAGE

DICTIONARY
LABEL(S) +
IMAGE URL *
[IMAGE LIBRARY (UPLOAD/SELECT)]

* = Field is optional.

+ = Enter space delimited labels for this post. An example entry: 240 muffler


©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.