try 3523, it worked on my radio.
a relay does not control both dome light and the radio.
jump power from the battery to the fan directly to see if the fan operates. if not, replace fan. interchange another relay with the fan relay to check the relay. there are usually the exact same relay located in the engine bay.
Some possibilities, could still be the battery, battery connections, starter, starter connections, ignition switch, starter relay and neutral safety switch.
Replace the relay from under the hood. In the fuse/relay box near the battery
Check all the fuses first, if they're fine,For the radio(if it's in fact the whole radio and not just the head unit light); check the fuse on the back of the radio if it has one, check for current from Battery+ wire leading to radio, or ground. if those check out fine, the radio itself is most likely dead, if nothing had power it could be a relay on the printed circuit board(don't touch this with your fingers), have a technician diagnose this.For the dome light; check current to the switch, if it checks out fine move to the light itself, if it checks out fine replace the bulb, if there is no power at all it could be a relay, or a B+ wire is shorted out, or the ground isn't good.
On my car it was a relay called "Ignition relay". That relay also kept the battery for charging as it stopped and started the current flow to the battery AFTER the alternator. Changed and all symptoms you mentioned ( which I also had) went away.
the relay is behind and above the battery, you will see two heavy wires - one red and one orange coming out of it.
where can I find the jack in my citroen relay van
under the air intake hoses near the bottom of the battery
relay location citroen c5
Where is the flasher unit on a citroen berlingo 2001
If you disconnect the battery (or the battery is very low and a relay will automatically disconnect the battery) you need to input the code for the radio. Maybe you battery is too old or too discharged.
I just changed mine, and it is under the seat. Remove the battery, and then there is a relay that is screwed to the inside of the back of the tractor under the battery compartment. Unscrew that relay and the fuse is attached to the wires coming out of that relay.
timing mark
inside the BSI
inside the BSI
left mirror