Thread: V50 Electrics : - Warning message / MOT
View Single Post
Old Jun 13th, 2018, 20:44   #2
SwissXC90
Premier Member
 

Last Online: Mar 20th, 2024 19:26
Join Date: Jan 2016
Location: Cross Country
Default

I am guessing you fitted a non-original alternator

These cars use intelligent alternators that talk to the CEM
If a plain old dumb alternator was fitted, it may charge the battery, but it won't talk to the CEM, and thus the CEM says something is wrong.

CEM won't need recoding for an oriignal Volvo alternator

Solution: fit an original Volvo intelligent alternator
__________________
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.
SwissXC90 is offline   Reply With Quote