jannikkoenig4
XC40 Door Lock Failure
Summary of the thread
A 2019 Volvo XC40 hybrid experienced a driver's side door lock failure, suspected to be due to a faulty door contact signal. A similar issue in a Peugeot 308 was caused by a corroded connector in the wiring harness. The suggested solution was to inspect the wiring, particularly where it passes from the body into the door. The problem was resolved by repairing a defective plug connection, restoring the door lock functionality.
Did this summary help you solve your problem?
4 comment(s)
jannikkoenig4 (community.author)
Interesting. Where exactly was the corroded connector located on your Peugeot? Was it difficult to access and diagnose?
helenanacht97
On the Peugeot, it was inside the rubber boot where the wiring harness passes from the body into the door. A real pain to get to! I spent ages fiddling with it. Given the symptoms and the probable cause, I think you should consider visiting a trusted workshop. My repair bill was very similar to your probable repair costs.
jannikkoenig4 (community.author)
Thanks for the helpful information! I took it to my local mechanic, and it turned out to be a defective plug connection, just as suspected. 95€ later, and the door locks are working perfectly again.
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
VOLVO
community_crosslink_rmh_model
XC40
helenanacht97
Sounds familiar! I had a similar issue with my old Peugeot 308. The symptoms were almost identical – central locking went haywire on one door. In my case, it turned out to be a corroded connector in the wiring harness that feeds the door sensor. It's like a kink in the garden hose, stopping the signal from getting through.