Technical Can anyone tell me why my fusebox has a constant ticking noise ?

[ireland007]

I have a 2012 Fiat Ducato that will not fire up even though it is turning over,The fuse box on the drivers side is making a ticking noise like shown in the video and the dials on the dash are moving around by themselves. I have checked the battery/earth leads/fuses/Relays and all are good but there is no power getting to the radio/headlights/hazrds lights of central locking.
Any one have any similar issues?

 

[cid]

Hi Ireland007, My 1996 Ducato makes a very similar noise with a bad earth. Have you tried the, connect a jump lead to neg. battery terminal then to engine, trick. Presuming your van is negative earthed. Ian

 

[ireland007]

Hi Ireland007, My 1996 Ducato makes a very similar noise with a bad earth. Have you tried the, connect a jump lead to neg. battery terminal then to engine, trick. Presuming your van is negative earthed. Ian

I tried that and no luck there,tnx.

 

[Communicator]

The possible causes are numerous, and locating the precise one will require some fault finding.

What is happening is that a relay in the fusebox is being operated via the ignition key, When the relay conacts close the load which could be a short circuit is causing the supply to the relay coil to collapse. The relay releases and with the voltage across its coil now OK, it operates again.......

Several of the relays in the cab fusebox (B002) have both the coil, and contact supplied via the acessories contact of the ignition switch, which could have a faulty accessories contact, or connection.

If electrical fault finding is not in your skillset, then perhaps you need the services of an automotive electician.

 

[ireland007]

The possible causes are numerous, and locating the precise one will require some fault finding.

What is happening is that a relay in the fusebox is being operated via the ignition key, When the relay conacts close the load which could be a short circuit is causing the supply to the relay coil to collapse. The relay releases and with the voltage across its coil now OK, it operates again.......

Several of the relays in the cab fusebox (B002) have both the coil, and contact supplied via the acessories contact of the ignition switch, which could have a faulty accessories contact, or connection.

If electrical fault finding is not in your skillset, then perhaps you need the services of an automotive electician.

I am trying to get an auto electrician but there is a wait of 4 weeks ,do you know if there is a relay built into the inside of the fuse box as when I remove all 4 external relays ,I still get the ticking noise?

 

[Communicator]

I am trying to get an auto electrician but there is a wait of 4 weeks ,do you know if there is a relay built into the inside of the fuse box as when I remove all 4 external relays ,I still get the ticking noise?

The BCM is attached to the rear of the fusebox. I understand the the BCM contains relays. That would account for the continued clicking.

 

[ireland007]

The BCM is attached to the rear of the fusebox. I understand the the BCM contains relays. That would account for the continued clicking.

Thats the information i was looking for, i have ordered a fuse board as i have read there are issues with these of the bcm? I did notice when i disconnect the socket from the right hand side of the fuse board, the ticking stops which i assummed that there was an internal relay in the fuse board but now it looks like it is the bcm from what you tell me,tnx