2003 C3 mk1 Help please

[Halil]

My 2003 model mk1 c3 1.4 16v vehicle's battery and oil warning lights do not work, and also the hazard signal lights and central locks do not work, all fuses and relays in the vehicle appear to be intact. Can you help me please?

[myglaren]

Have you checked the battery? How old is it? Do you make lots of short journeys?

Personally I would remove the battery and charge it up over 48 hours (trickle charge) refit it and see how that works.
Some Citroens can be very finicky with regards to the battery condition and voltage. If the voltage is down a bit all sorts of things can go a bit crazy.

There is something of a procedure with removal and refitting the batteries, crucial on some models.

I had a new battery to fit to my daughter's C3 a few months ago, after trying to charge it. It didn't seem to need such an elaborate series of steps as my C5's did but always best to be cautious.

BSI Reset / Battery Disconnection / Reconnection

[Halil]

I tried those methods but it didn't work

[Paul-R]

If the battery reconnection procedure hasn't worked then you need to get car read for error codes (DTCs) with a high end code reader, preferably a Diagbox.

[Halil]

I have autocom for obd but I couldn't find any error

[Halil]

Is there anyone who can help or has this happened to anyone before?