Citroen c4 grand picasso 2016 1.6hdi electrical faults

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Snoopy_410
Posts: 2
Joined: 09 Jul 2023, 23:08

Citroen c4 grand picasso 2016 1.6hdi electrical faults

Unread post by Snoopy_410 »

Citroen c4 grand picasso 2016 1.6hdi electrical faults

Hi,
I'm hoping I could get some help from the guys that know these cars.

The car unlocks but only on the drivers side, the car does not start and states electrical fault on the dashboard, engine fault, handbrake and airbag fault.

When the ignition is in the on position the rear wiper functions constantly, no power is present at the obd port but all fuses are good.

I have put power to the obd port and found faults across engine, abs, power steering and airbag systems (codes listed at the bottom).

The Parking brake was off when I got the car and I managed to get the car started by sending power to the starter solenoid, the car runs well and when the car was stopped the parking brake came on then couldn't be turned off again, some items like the mirrors cant be adjusted even with the engine running.

Originally I thought it was a bsi fault but now I am not so sure, the fact the nearside doors don't unlock from the fob but do lock and the no power to the obd port make me think is is the bsi but all the fault codes make me think its something else.

A bmw had similar issues when a fuse was gone in the bsi but as I say I have removed and checked all of the fuses and cleaned up a few connectors in the engine bay.

I have now read about some electrical faults with with the handbrake wiring and i will have a look at that as soon as it stops raining, is there anywhere else i should look?

Faults are
ENGINE
U0118/p1435multiplex adaptive pump fault or can fault
P081A reversible alternator restarting authorising line short to earth
P242F particulate filter detected worn
P13C1 starter control interface unit internal fault
P0615 starter relay control short circuit to earth or positive or open circuit.
Starter control interface short circuit to earth

POWER STEERING
U1318 absence of communication fault with bsi. Value incorrect
C1406 engine or power steering calculator overtemperature not characterised
U1313 Fault: No Communication With Anti-lock
Braking System (ABS) Or Electronic Stability
Program (ESP). Value Received Incorrect
U1308 Fault Engine Status Information. Not
Characterised
U1308 Fault Engine Status Information. Not
Characterised.
U1108 Fault Engine Status Information. Not
Characterised

ABS
C2391 Engine Torque Not Cleared Fault
C2560 Electric Parking Brake (FSE) Left-hand
Actuator
C2561 Electric Parking Brake (FSE) Right-hand
Actuator
C256D Electric Parking Brake (FSE) Actuator
Sensors
C2555 Electric Parking Brake Activation /.
Deactivation Control
P0562 ESP ECU Electrical Supply
C0040 Brake Pedal Sensor
P0560 ESP ECU Electrical Supply

AIRBAG
B0001 Level 1 Driver's Air Bag Line Fault
B1400 CAN + Supply Voltage Fault
BOODF Fault On The Line-Of The Passenger
Airbag Deactivation Switch
U1802 Vehicle Speed Data Fault
U1F03 Absence Of Comimunication With The
BSI Fault
U1F00 Fault Not Recorded In The BSI Faults
Log
User avatar
GiveMeABreak
(Donor 2016)
Posts: 42019
Joined: 15 Sep 2015, 19:38
x 6955

Re: Citroen c4 grand picasso 2016 1.6hdi electrical faults

Unread post by GiveMeABreak »

With this number of faults I think your problem is more likely to be one of the boards like the engine fuse box, BSI or supplies and management OR the connections to them. Faults in these areas can lead to a host of electrical faults, and as many of the faults above are relating to a supply issue / comms issue on the network, that is where I would start looking.

I wouldn't be replacing any parts at this stage, but it may pay you to get a dealer to look at it for the cost of a diagnostic (circa £120 inc. VAT for up to an hour of diags). They may have seen this sort of issue before, but will certainly have the additional testing kit to check. I say this given the number of faults and the likely specialist attention needed to locate the fault (s).
Please note, I'm no longer active on the Forum, so won't respond to messages.

Marc
pkatra
Posts: 1
Joined: 09 Jul 2025, 21:31

Re: Citroen c4 grand picasso 2016 1.6hdi electrical faults

Unread post by pkatra »

hello all

have you solve this problem mr Snoopy_410 ?

I have same problem can you help?

best regards

pkatra