or Login >>         
C4 Insurance | Tutorials | Quick Facts | Buying Used C4 | Re Call Info | Offers | Service Reviews | Downloads | Error Codes | Warranty?
Premier Membership * Great Discounts + * Personal Photo Gallery + * = Great Value [read more....]
C4 - DS4 Owners :: Forums :: Citroen C4 Picasso and Grand C4 Picasso (B78) 2013 onward :: C4 Picasso and Grand C4 Picasso (B78) Problems and Issues
<< Previous thread | Next thread >>

Parking sensors
Home   Forum Rules    Forum Help  Conversion Tools
   
Please Register to enjoy additional Member Benefits
Top Thanked Forum Posts: Today | Week | Month | Year | All time | Most Thanks Given: To member | By user
Author Post
StuBeeDoo   
Sat Jun 13 2026, 07:04am
Member No: #61041
Joined: Aug 03 2023
Location: Gateshead
 One of the parking sensors on our C4P has gone bad. Do new ones need to be programmed with Lexia of Diagbox?

TIA
Stuart.
StuBeeDoo   
Fri Jun 19 2026, 08:12pm
Member No: #61041
Joined: Aug 03 2023
Location: Gateshead
 I never did find the answer, but in the sake of continuity the problem was simply solved.
It was caused by lacquer flaking off the sensor. Peeling it fully off cured the problem.
danlat1415   
Tue Jun 30 2026, 08:59pm
Member No: #48933
Joined: Jul 17 2017
Location: UK
 Just to add to this - no the parking sensors are not coded to the car.
You can access behind the bumper either from underneath or behind the wheel arch (unscrew the trim first).
Then you unclip the wiring loom and unclip the parking sensors.
They're all individual.
They're all different part numbers (except the centre two on front bumper are the same as each other, and the centre two on the rear bumper are the same as each other).
So you need to match the correct part number to the one you're replacing.

Then just swap it out and you're good to go.
No coding or programming needed.
Nickbrown123   
Sun Jul 12 2026, 09:24am
Member No: #61140
Joined: Sep 03 2023
Location: Zagreb, Croatia
danlat1415 wrote ...

One of the parking sensors on our C4P has gone bad. Do new ones need to be programmed with Lexia of Diagbox?

That's a good question. In most cases, these are just plug-and-play components. As long as you match the part number exactly, you should be able to swap them out without needing any diagnostic software.
 

Jump:     Back to top

User Colour Key:
Head Administrator, Administrator, Forum Moderator, Forum Moderator, Premier Member, Technical Expert, New C4 and DS4 Forum Moderators, Member