Turn indicator problem Ducato A class

[quickweh]

The RH rear indicator has stopped working, including hazards. RH front is OK. I cannot find any reference for an indicator relay or fuses in the Fiat handbook. The bulb for the indicator is OK, works in the other housing. The wiring in the housing also looks OK
So my question is where is the relay for the indicators and are there separate feeds to individual lights?
I don't think that I can get away with hand signals.

 

[Lenny HB]

Have you checked the connections in the multi plug on the chassis towards the rear where the converters wiring plugs into the Fiat loom?

 

[quickweh]

Have you checked the connections in the multi plug on the chassis towards the rear where the converters wiring plugs into the Fiat loom?

I'll check.

 

[Landy Andy]

The supply will come from the ECM, so not an individual fuse I would think. If you have a side repeater, or high repeater, with “issues” then it will stop the supply all it sends a signal too.

 

[Northernraider]

Have you checked the connections in the multi plug on the chassis towards the rear where the converters wiring plugs into the Fiat loom?

I'll check.

That's where the issue will be. Only one relay for indicator so if it isn't the bulb it's the wiring to that bulb.

I had similar issues with stop lights on my ducato and it was a fault in the wiring extension ... found the issue at the plug on chassis behind rear wheels.

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[Lenny HB]

Also check the wiring hasn't been attacked by mice/squirrels or foxes

 

[L' Hobo]

Some fuses which are sometimes overlooked, are at the base of the pillar behind the driver's seat. Cannot remember what these are for but something to do with habitation I think?

 

[quickweh]

Had a quick look underneath and there is a plug tucked into the chassis member and will check it out later. I'll also check the side repeater on the cab. Checked the voltage with the bulb removed, 0 to 0.5 volts to 0, so there is a tiny signal.
Thanks all for your help.

 

[Landy Andy]

It will be a CANBUS system.

 

[quickweh]

Pulled the multi plug and did a visual check of wiring with no obvious signs of damage and reconnected, also disconnected/reconnected the cab battery in case it was a BCU issue.
It's time for an auto electrician I guess.

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[Lenny HB]

Some fuses which are sometimes overlooked, are at the base of the pillar behind the driver's seat. Cannot remember what these are for but something to do with habitation I think?

Not in an A Class

 

[quickweh]

Had another closer look today and did a continuity check, all OK to the plug.
The pin for the indicator looked as if it was set back a little so gave it a tug with long nosed pliers and repeated a few times to clean the surface, solved the problem I'm glad to say. So many thanks to you all and feel free to tell me "I told you so".
What a great resource Fun is.

 

[Landy Andy]

Glad you got it sorted.

I find it very frustrating working on canbus stuff as it doesn’t do what you want/expect. A nice simple 12v system is far easier.

 

[Peregrinator]

The RH rear indicator has stopped working, including hazards. RH front is OK. I cannot find any reference for an indicator relay or fuses in the Fiat handbook. The bulb for the indicator is OK, works in the other housing. The wiring in the housing also looks OK
So my question is where is the relay for the indicators and are there separate feeds to individual lights?
I don't think that I can get away with hand signals.

Most likely connections or wiring.