Passenger dip beam in op.

Marky75 · Dec 16th, 2020, 23:55

Hello
So I have an XC90 2009
With the passenger dip beam not working . Have changed bulbs checked wiring and continuity on the blue white wire back to the CEM from the headlight this is fine.
So guessing it's the CEM is this common ?
So can it be changed can I do it or does it need to be programmed
And if yes is there somewhere in Kent that will do thanks very much
Mark

gmonag · Dec 17th, 2020, 11:27

Whoa Tiger! Don't go swapping the CEM just yet.
Have you checked the fuse? (possibly No. 17 in engine compartment)
What type of headlights do you have?
Have you swapped the bulbs (RH/LH)? A new bulb may be faulty.

Marky75 · Dec 17th, 2020, 19:57

So tried bulbs tried other side head light checked wiring .
No power coming out of CEM blue white that goes to head light . There's power at the fuse.

SwissXC90 · Dec 18th, 2020, 05:41

Sounds like CEM relay faulty. Relays can be replaced, some soldering required. Or else replace the CEM.

Marky75 · Dec 18th, 2020, 08:27

Quote:

Originally Posted by SwissXC90

Sounds like CEM relay faulty. Relays can be replaced, some soldering required. Or else replace the CEM.

Is there diagram for what relays what in the cem.? Thanks

SwissXC90 · Dec 18th, 2020, 09:43

Quote:

Originally Posted by Marky75

Is there diagram for what relays what in the cem.? Thanks

Yep, there's even a complete guide on how to do it:
https://www.volvoforums.org.uk/showthread.php?t=217111

Dec 16th, 2020, 23:55	#1
Marky75 New Member Last Online: Dec 18th, 2020 08:27 Join Date: Dec 2020 Location: Sidcup	Passenger dip beam in op. Hello So I have an XC90 2009 With the passenger dip beam not working . Have changed bulbs checked wiring and continuity on the blue white wire back to the CEM from the headlight this is fine. So guessing it's the CEM is this common ? So can it be changed can I do it or does it need to be programmed And if yes is there somewhere in Kent that will do thanks very much Mark

Dec 17th, 2020, 11:27	#2
gmonag Premier Member Last Online: Jan 15th, 2024 17:24 Join Date: Jun 2010 Location: Bury St Edmunds	Whoa Tiger! Don't go swapping the CEM just yet. Have you checked the fuse? (possibly No. 17 in engine compartment) What type of headlights do you have? Have you swapped the bulbs (RH/LH)? A new bulb may be faulty. __________________ Greg Last edited by gmonag; Dec 17th, 2020 at 11:30.

Dec 18th, 2020, 05:41	#4
SwissXC90 Premier Member Last Online: Mar 20th, 2024 18:26 Join Date: Jan 2016 Location: Cross Country	Sounds like CEM relay faulty. Relays can be replaced, some soldering required. Or else replace the CEM. __________________ XC90 R-Design MY2009, Black Sapphire Metallic. HP-Sound, RSE, Nav, Tel, ParkingCam, BLIS, ParkingHeater, RestHeat, Removable Towbar, Summer: CRATUS 20x8 on Pirelli Scorpion Zeros 255/45, Winter: NEPTUNE 17x7 on Continental WinterContact 4x4 235/65.

Dec 17th, 2020, 19:57	#3
Marky75 New Member Last Online: Dec 18th, 2020 08:27 Join Date: Dec 2020 Location: Sidcup	So tried bulbs tried other side head light checked wiring . No power coming out of CEM blue white that goes to head light . There's power at the fuse.

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