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



 VIEW    REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

940/960 instrument cluster printed circuit board repair 900

uid 55's pic
posted by  john sargent on  Tue Jan 5 16:54 CST 2010
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Wed Oct 22 09:07 CST 2014
[RELATED]

Volvo 940 and 960 instrument clusters suffer from printed circuit foil and solder joint troubles. I've had trouble with the ABS and Coolant Loss warning lights not working. The problem has been a break in the printed circuit track feeding those two warning lights. If your ABS or Coolant Loss light don't come on with the engine off and key in the run position, your car has this problem. 940s didn't come with a Coolant Loss warning light, but many of us have added them using the 960 Coolant Reservoir. Sometimes the Parking Brake warning light doesn't work in addition. The picture below shows three warning lights on the back of the cluster. Light 8 is for Coolant Loss, light 9 is for ABS, and light 10 is for the Parking Brake. The problem is the printed circuit track feeding lights 8 and 9 from light 10 will have a defect and not supply electricity. Installing a jumper wire from the solder joint just above lamp 10 to the printed circuit board a lamp 8 fixes the problem. It beats buying another instrument cluster that may have the same problem.



The picture below shows another instrument cluster with a slightly different repair. I've seen three of these failures.



This type of soldering to a printed circuit board takes special care, or you'll melt the circuit foil.
--
john






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.