Citroen C3 c3 wont start, no power, wipers randomly on despite being off.

Car: Citroen C3
Variant: 1.6i VTR
Model Year: 2007
Categories: Electrics, ECU, Warnings & Lights
Drove to do the school run, when i went to restart after collection the car simplyly wouldn't. No turn over, not even so much as a click. RAC came out, plugged it in and came back with possible crank sensor, went to lock the car before making my way home and it wouldn't, RAC then says could be the keyfob battery. Car gets towed to local garage, cant find an issue says key needs programming as immobilizer issue. Call out a specialist, still no resolution. Nothing happening, new news is immobilizer barrel or ECU. Thoughts?
Posted: Jan 29, 2024 (9 months ago)
To have so many people to have the car there to check and not be able to get to the fault , beggars belief . " possible crank sensor, " should show as a fault code but engine would turn but not fire . Key fob battery wouldn't stop car from starting as you describe . Some " specialist " if he cant find the fault . If immobilizer should show fault code and usually warning light on . Unfortunately not a lot I can do from here , Check battery voltage , battery terminals and cables , check ALL earths , especially from engine / gearbox to body , check wiring at starter . Check all possibly relevant fuses
Citroen C3 mk1 (2002 – 2009) – fuse box diagram
Year of production: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009

Fuse box under dashboard
Citroen C2 - fuse box - under dashboard
Citroen C3 – fuse box – under dashboard
Fuse Ampere rating [A] Function
3 5 Airbags
4 10 Diagnostic socket, particle filter additive, clutch switch, steering angle sensor
5 30 Rear window, sun roof
6 30 Screen wash
8 20 Digital clock, controls at the steering wheel, radio, display
9 30 Cigar-lighter, digital clock, interior lamps, vanity mirror
10 15 Alarm
11 15 Ignition switch, diagnostic socket
12 15 Airbag ECU, rain and brightness sensor
14 15 Parking assistance, instrument panel, air conditioning, bluetooth® telephone
15 30 Central locking, deadlocking
17 40 Heated rear screen
18 SHUNT CUSTOMER PARK SHUNT


Fuse box under the bonnet
Citroen C2 - fuse box - engine compartment
Citroen C3 – fuse box – engine compartment
Fuse Ampere rating [A] Function
1 20 Water-in-diesel-fuel sensor
2 15 Horn
3 10 Screen wash
4 20 Headlamp wash
5 15 Fuel pump
6 10 Power steering
7 10 Coolant level sensor
8 25 Starter
9 10 ECUs (ABS, ESP)
10 30 Engine control actuators (Ignition coil, Electrovalve, Oxygen sensor, Injection), canister purge
11 40 Air blower
12 30 Windscreen wiper
14 30 Air pump (petrol version) – Diesel fuel heater
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market



C3, Citroen electricity
Posted Jan 29, 2024 (9 months ago)

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