Volvo AWD V70-XC70 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 2/2008 V70-XC70 INDEX

[<<]  [>>]


 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Is my CEM bad? V70-XC70 2007

posted by  Chris Mullet on  Fri Aug 3 22:27 CST 2018
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Fri Oct 24 09:08 CST 2014
[RELATED]

I'm looking at page 81 of this wiring diagram:

http://www.volvowiringdiagrams.com/volvo/XC70%3AXC90%20Wiring%20Diagrams/TP3998202%202007%20V70%20V70R%20XC70%20XC90%20Wiring%20Diagram.pdf

It appears that the power path goes: (Battery) - fuse - Light switch (3/111) - CEM (4/56) - Thru a disconnect (54/23) that I don't know where it is, firewall? - RH Headlight (10/2).

It looks like a single power source ( no LH/RH differentiation) until it goes through the CEM. Coming out of the CEM there is a blue/yellow that passes thru the disconnect and continues as a blue/yellow to the R/H Dipped Beam bulb. For the L/H side, it's a Blue/White out of CEM, passing through the other disconnect, continuing to the L/H bulb as a blue/yellow.

So the problem lies somewhere between the CEM and the bulb, including a mid-course disconnect. So in theory you can probe the R/H blue yellow wire at both the CEM end and the Bulb end and draw a conclusion as to where the break is.






THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New Is my CEM bad? [V70-XC70][2007]
posted by  fredgus  on Fri Aug 3 11:50 CST 2018 >


<< < > >>



©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.