C3 Picasso Exclusive Reversing light and sensors

[Bargeman]

Hello Hive

I've a C3 Picasso Exclusive 1.6HDI 2012.

The Reversing light and Sensors have stopped working. Zero volts at the reversing lanp holder. The loom looks O.K. Numberplate and other lights workong fine. The earth path is good.

The switch on the gearbox is operating fine.

To help me fault find, I would love it if someone could supply a wiring diagram for these circuits. I can't find one anywhere. I'd happily buy one.

Plus the answer to a few questions would help, my head hurts:
Are both the circuit(s) powered by the same wire? or are they individual.
Does the command from the gearbox switch go through the under bonnet fuse / relay box?
If so does anyone have an ide of which terminals? I'm thinking afaulty relay possibly.

Any help realy gratfully accepted.

[GiveMeABreak]

Hi, let me have your VIN and I'll sort something out for you. Please post your VIN in full without spaces - it will be automatically masked from public view after submitting your post & will only be visible to staff.

[Bargeman]

Hi, what a great offer. Thanks. Here is the VIN VF7**************[VIN obfuscated, can be read by forum staff]

[GiveMeABreak]

Unfortunately, I don't think this is going to help much...

With the exception of the wiring codes, most of the component codes are indexed here:

PSA Electrical Diagrams - Wiring & Symbols Codes Index