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



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Speedometer sensor resistance value? 700

posted by  someone claiming to be Matt '90 740 on  Fri Oct 11 11:18 CST 2002 [RELATED]

The problem is that my speedo works only some of the time. If I smack the dashboard, particularly the left-hand side (the car's RHD) then the speedo will often leap into life, sometimes staying operational for quite a while.

I assumed it was the head unit because of the response to hitting the dash, but since I noticed the apparently bigger effect of hitting on the left hand side (the side where the wiring loom interior to engine bay connectors are)I'm not so sure.

I've checked the resistance which came out at 810 ohms. That's quite different to 2950; are you sure that all models had the same? I noticed a post on the 850 list stating a value of 1820 for them. Or could there be a wiring fault (rather than sensor fault)which would account for the low value temporarily cured when the dash is thumped? Of course I could have multiple faults :-(

Also why do you need to use an analogue meter to test the output, I only have a digital meter, though I may be able to borrow one.

Cheers

Matt






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.