XC90 Left Headlight fault

pacman67 · Nov 25th, 2023, 09:18

Had this car around three years now, and this error code CEM-B128A01 is dogging me as i cannot seem to pinpoint the exact cause. The code relates to a general electrical failure and a temperature error, but does not pinpoint to any of the modules or the main light. No fault shows on the car, but is noticeable due to the bending and shadow features do not operate, although it occasionally does start to work normally. I have removed the light unit and inspected for water ingress etc, and while there i removed and treated the module sockets and plugs. If i try and clear the codes using VDash, the code just returns. If i opt to replace the light its around £3k, which i,m obviously not keen to do.

RasendeSau · Mar 28th, 2024, 23:49

Hey mate,

Die you solve the Problem?

Simmy · Mar 29th, 2024, 15:10

hav you tried cleaning and reseating the cem plugs

RasendeSau · Mar 30th, 2024, 20:44

Quote:

Originally Posted by Simmy

hav you tried cleaning and reseating the cem plugs

I will give it a try…

Nov 25th, 2023, 09:18	#1
pacman67 VOC Member Last Online: Dec 6th, 2023 14:09 Join Date: Feb 2009 Location: Richmond N Yorks	XC90 Left Headlight fault Had this car around three years now, and this error code CEM-B128A01 is dogging me as i cannot seem to pinpoint the exact cause. The code relates to a general electrical failure and a temperature error, but does not pinpoint to any of the modules or the main light. No fault shows on the car, but is noticeable due to the bending and shadow features do not operate, although it occasionally does start to work normally. I have removed the light unit and inspected for water ingress etc, and while there i removed and treated the module sockets and plugs. If i try and clear the codes using VDash, the code just returns. If i opt to replace the light its around £3k, which i,m obviously not keen to do. __________________ Regards, pacman67 previously held: V40 TD & S40 2ltr P1,V40 P2 sport lux, V70 XC P1, XC70 P2, V70 D5 P2 and P3, V40 T4,V70R, C30 R Design. currently held: V70 P3 D5 SE LUX, XC90 MK2 Inscription Pro.

Mar 28th, 2024, 23:49	#2
RasendeSau New Member Last Online: Today 13:18 Join Date: Dec 2021 Location: Remscheid	Hey mate, Die you solve the Problem?

Mar 29th, 2024, 15:10	#3
Simmy Premier Member Last Online: Today 13:33 Join Date: Mar 2017 Location: Manchester	hav you tried cleaning and reseating the cem plugs

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