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C4 - DS4 Owners :: Forums :: Citroen C4 Picasso and Grand C4 Picasso (B78) 2013 onward :: C4 Picasso and Grand C4 Picasso (B78) Problems and Issues

C4 Gearbox fault

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Tue May 30 2023, 05:22am
Member No: #60837
Joined: May 30 2023
Location: isle of Sheppey
Hi, can anyone help. I have a 2014 C4 Grand Picasso, coming up with "Gearbox Fault Get Repaired" I have check the 30amp fuse, all ok. One thread suggested possible 35amp relay open circuit, but on my model I cannot find the relays. (not non engine fuse box or under dash} Any ideas. Thanks Dad
Tue May 30 2023, 06:48am
Member No: #48843
Joined: Jul 06 2017
Location: Scotland
I would suspect there are more specific fault codes if you get the codes read. That will help you
1 User said Thank You to vexorg for this Post :
 Gdad (30 May 2023 : 08:58)
Tue May 30 2023, 09:00am
Member No: #60837
Joined: May 30 2023
Location: isle of Sheppey
Thanks David, I am waiting for a mate to do a code read for me, but I am still interested to know where I rind the relays on my model, 1.6 HDI VTR+ 2014.

Tue May 30 2023, 09:39am
Member No: #52161
Joined: Sep 21 2018
Location: Republic of Serbia
On top of the battery maybe?
Wed May 31 2023, 12:44pm
Member No: #60002
Joined: Aug 15 2022
Location: Malaga
On a MK1 the 35A relay is in the front of the engine bay fuse box, coloured green.

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