Volvo AWD S60 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 10/2006 S60 INDEX

[<<]  [>>]


THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD




  REPLY TO THIS MESSAGE    PRINT   SAVE 

2001 Volvo S60 radiator fan won't come on S60

posted by  bostondave33 on  Sun Jul 29 21:30 CST 2018
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS] [RELATED]

Help!! So i realized that my radiator fan isn't coming on with hot engine, or when i turn on AC. I have tested the fan and it works.








  •   REPLY TO THIS MESSAGE    EDIT   PRINT   SAVE 

    posted by  someone claiming to be on  Wed Dec 31 18:00 CST 1969 [RELATED]

    The closest wiring diagram I could find is for a 2002 S60, but it should be OK....

    Locate it here:

    http://www.volvowiringdiagrams.com/?dir=volvo/S60%20Wiring%20Diagrams

    Pg 8 of the diagram says that fuse number 7 powers the Fan Controller. Is the fuse good?

    Pg 44 illustrates the Fan System wiring.

    4/71 = fan controller
    6/29 = fan motor
    7/8 = AC pressure sensor
    7/16 = coolant temp sensor

    Either the AC pressure sensor OR the Coolant sensor (or both at the same time) can trigger the fan, via the violet wire running from the CEM to the Controller. However, the coolant sensor performs double duty as it is also the sensor for the temp gauge, so if the gauge is working properly then you can probably eliminate that sensor from being a suspect. The AC pressure switch "could" be a suspect and that can be tested by unplugging it and jumping the wires.

    A very likely suspect though is the fan controller. I assume that when you tested the fan motor you applied power to the white wire BETWEEN the controller and the fan motor. So if you're getting constant power through the red Controller wire (which you should get even with the key off) and you get a trigger signal through the violet wire, yet the fan won't run, then the Controller really starts to look guilty.
    --
    Current rides: 2005 Volvo S80 2.5T, 2003 Volvo V70 2.4NA, 1973 Volvo 1800ES (getting ever closer to road worthiness)



    Mark this post as an answer to my question<- Use this feature to mark quality replies to your post.




<< < > >>



©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.