2016 Grand picasso Tailgate woes

[GiveMeABreak]

Unfortunately I can't help you what that as I only have the earlier model which is useless to you, being that you have the later system, plus the electronic architecture may be different too. You'll find these quite difficult to get I suspect as they are not available publicly. Whether you can pay Citroen to obtain the relevant ones for you I'm not sure, but may be worth a call.

[rtco]

Many thanks for that. When I have time I will strip it all down and see whats missing.
Where can I obtain a wiring diagram from. Particularly the connections to the tailgate module. ?

I have a similar problem...

I own a Peugeot 3008 2022 and after a collision, the trunk lid had to be replaced.

Before the change, it beeped, but it didn't work (open/close). Now it doesn't emit any signal.

All components are in place and there do not appear to be any broken wires.

Did you manage to solve it?

[GiveMeABreak]

1) Did you replace the correct part - there are 2 types of tailgate, motorised and non-motorised?
2) If you do have the correct part, you need to calibrate and initialise the motorised tailgate before it will work.

[rtco]

Mine is motorized. Only the trunk door and the lock (same serial) were replaced. The module, wires, antenna and strusts etc are the original ones.


Before the crash: Everything worked

After: it would not open or close electronically and the lock was damaged
It was possible to lift and lower the lid manually without effort.
Dashboard button (2x) - 3 beeps
Key fob- 3 beeps
Inside Trunk button - 3 beeps
Outside trunk button - 3 beeps

After disconnecting the module, wires and battery to fix:
It's too hard to close manually. Opening without effort.
Panel button (2x) - No response
Key fob- No response
Inside Trunk button - No response
Outside trunk button - open the door, but it does not lift or lower


What is the procedure for restarting and calibrating?

[GiveMeABreak]

It usually needs Diagbox to calibrate it and the procedure is generally contained withing it.

[Stevewav]

Good afternoon everyone,

I'm experiencing a similar issue with my 2017 C4 Grand Picasso. During a trip, I lost the lower black part of the rear bumper that holds the center parking sensors. Unfortunately, I later discovered that the "hands-full" feature no longer works. I noticed the parking sensors are intact but hanging from their connectors, and a three-cable connector is missing. I suspect this missing part is the sensor for the tailgate opening system, which I have already ordered and received as a used part.

However, I'm unsure about the meaning of the colors on these cables to connect them correctly without replacing the entire wiring harness. The three cables are pink, red, and green. Using a multimeter, I identified the positive, negative, and signaling cables as pink, red, and green, respectively. What I don't know is the correct position on the sensor itself. I would greatly appreciate any suggestions regarding this.