valentinadragon5
Peugeot 3008 control unit communication error
Summary of the thread
A 2022 Peugeot 3008 is experiencing a control unit communication error, leading to engine overheating, check engine light activation, and coolant spills due to excessive cooling system pressure. The suspected cause is a defective cable or plug connection. After checking diagnostic trouble codes and consulting with others, it was confirmed that the issue was indeed a defective plug connection on the control unit, which was resolved at a repair shop.
Did this summary help you solve your problem?
4 comment(s)
valentinadragon5 (community.author)
Thanks for the reply. Yes, I did check the diagnostic trouble codes. It points to a generic 'control unit communication error'. Could it still be a simple wiring issue with such a vague code?
JakobMey
With my Volvo, the vague code led to a corroded connector on the ECU. So yeah, a wiring issue is still very possible, especially given the other symptoms you described. But honestly, I'd suggest getting it properly diagnosed at a workshop. Could save you a lot of time and headache.
valentinadragon5 (community.author)
Thanks for the advice. I took it to a shop, and you were right. It was indeed a defective plug connection on the control unit. Repair cost was 95€ Appreciate the help!
rmh_community_comment_box_header
community_crosslink_scanner_headline
community_crosslink_scanner_intro
community_crosslink_scanner_title
community_crosslink_scanner_price
community_crosslink_rmh_headline
community_crosslink_rmh_intro
community_crosslink_rmh_title
community_crosslink_rmh_subtitle
community_crosslink_rmh_brand
PEUGEOT
community_crosslink_rmh_model
3008
JakobMey
Sounds rough. I had similar issues with my old Volvo V70 – though the symptoms were slightly different. Check engine light and weird temperature readings were the giveaways for me. Have you checked the diagnostic trouble codes? Might point you in the right direction.