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 

AC idle bump--wiring inquiry 200 1988

posted by  David Samuels on  Fri Apr 12 13:58 CST 2013
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Mon Oct 20 12:23 CST 2014
[RELATED]

In LH2.2 cars, there is a red wire that leads from the ECU to the AC circuitry. It's part of the four pin sub-harness that snakes across the dash from the ECU going left to the fan, pumps, etc. My understanding is that this red lead takes a signal to the ECU from the AC relay for the idle speed bump when the compressor is engaged. Bentley refers to this connection as terminal 15 of the AC delay relay, item number 129 in the schematics.

I'm just looking for a little confirmation, as I don't have a green book diagram of the AC to decipher terminal 15 of the AC relay. I'm guessing that the ECU sees power when the AC relay energizes, but before plumbing 12 volts to the ECU, I thought I'd get some input (no pun intended).

Thanks,
Dave






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.