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Help, Advice, Owners' Discussion and DIY Tutorials on Volvo's stylish, distinctive P2 platform cars sold as model years 2001-2007 (North American market year designations).

2001 - 2007 V70
2001 - 2004 V70 XC (Cross Country)
2004 - 2007 XC70 (Cross Country)
2001 - 2009 S60
2003 - 2007 S60 R
2004 - 2007 V70 R
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Eugene
Posts: 4
Joined: 22 October 2006
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Central Electronic Module

Post by Eugene »

2006 Volvo s60 2.5 T Engine:B5254T2
Problem: low beam lights are not working.
Bulbs, fuses and cabling checked.
There is new type of CEM installed in this car (2006).
Question: is this CEM has relays and shunts to replace or whole unit to be replaced?
Eugene
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jimmy57
Posts: 6694
Joined: 12 November 2010
Year and Model: 2004 V70R GT, et al
Location: Ponder Texas
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Post by jimmy57 »

the 2005 and later use transistor circuits in place of the earlier relays and shunts. CEM will have to be replaced if external sources have been eliminated.
The CEM will shut off power supply and set a DTC if it senses excess current draw. Usually this would only happen on right or left and not both as it is a separated function side to side.
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