2005 fiat doblo all right indicators not working

[robbocop33]

Anyone familiar with the wonderful world of Fiat electrics?,just bought a high top Doblo.The hazard lights only illuminate left indicators,left indicators work ok from stalk also,however all right indicators don't work from either hazard switch or indicator stalk.
Indicator light on dash flashes quickly like you get with a bad bulb(all bulbs ok)
After a quick look at a wiring diagram no indicator relay,eek!Bcm controlled?So i'm going to check right side indicator outputs from BCM,but for quickness sake are there any common places wires chaff on these?Failing that are faults on the bcm circuit board common?Thanks!

[robbocop33]

So far i've checked voltage on good side,it fluctuates off and on ok,on bad side i get 0.01 volts going on and off??Here is the diagram,three indicators on the right of the row of six at the bottom are the faulty ones.

[robbocop33]

I've used a power probe direct to the positive at the bulb and gave it a feed,bulb lit!,which rules out bulb and i know now the earth side is fine automatically.One fault code has appeared b1007 ,incorrect direction lamp?
Removed rear passenger light unit and had a chuckle that rear side light bulb was missing!!(i've just bought the car)Could it have just been that?No!,Renewed all indicator and side light bulbs,cleared codes,re read codes and they were gone,however indicator fault still remains damnit.
I've been down at the bcm and tested every pink wire coming out,the ones i'm getting a live feed on aren't making the test light go off and on like i expected,just a constant live feed.

Edited by robbocop33 on Friday 7th May 17:27

[robbocop33]

I'll try that,however today discovered something else,rear lights on mine are from top to bottom on the left,double filament brake/taillight bulb,then indicator,then reversing light,then rear foglight,rear right cluster should be the same as left side,however bottom socket should be bulb free??It's a reflector!!
So that 'might' be my problem as both mines have a bulb in the bottom.I'll remember what you said though regarding codes once i've got bulbs correct,thanks!

[robbocop33]

Just incase this helps anyone,finally,well think i've at least discovered the 'result' of whatever has gone wrong.Found the output wires on the BCM to the 'good' inicators on the passenger side,test light was flashing on and off like it should with the pulsed signal to the indicators,however,the pink wire supplying the bad side 'wasn't' lighting my test light!Plus,on cutting the wiring loom electrical tape back i discovered the pink wires plastic covering had melted!!!All the way up the wire!!
Unfortunately i think the indicator relay soldered onto the BCM circuit board has blown and melted my wire!
Not really something i wanted to discover on my first week of owning the car.
So i take it these relays aren't sold seperately,and i just have to buy a used bcm donor part?

[robbocop33]

Penelope Stopit said:

Surely there's the possibility that there was a short on something and someone bridged out or fitted an incorrect fuse which then caused melt-down through the cable and relay

Most relays can be found and bought

My thinking was since this melted wire was an output from the bcm,the indicator relay which is soldered onto the bcm mainboard has shorted,melting this indicator supply wire?
I definetly thought of a short elsewhere but it's just the fact the output is dead right where it comes out the bcm.
Incidentally i have hit the supply wires to the indicators at various points with my powerprobe,giving the wire 12 volts directly, and the nearby indicator bulb lights!!So wiring integrity seems to be fine 'most' places i've checked.

Edited by robbocop33 on Monday 10th May 09:23

[robbocop33]

All fuses are fine,checked them first.I think the indicator relay in the bcm only has two jobs to do,operate right or left indicators,and one side of the relay to the right indicators has just said no,had enough.

Edited by robbocop33 on Monday 10th May 11:18

[robbocop33]

I had a long chat with the previous owner and he hasn't touched anything,well he would say that,and he said he never knew there was a fault,well the indicator light on the dash and the relay clicking faster would be hard to ignore when turning right.
As i said before i can prod basically anywhere on the melted pink wire and put 12 volts through it and the indicator bulbs light up!So i think the integrity of the wiring seems to be intact throughout the car,a short would definetly be a possibility but the fact this wire is capable of carrying voltage all along the car is guiding me to the bcm.
I'm going to try and solder in a new indicator relay in the bcm.

[robbocop33]

A very unsuccessful update,bought a used donor body control module,took indicator relays off it and soldered them onto mine.First off 'both' sides indicators now don't work,and as an extra bonus the keys now aren't recognised!
This second fault surprised me,yes if you just bung in a complete new Bcm into a car you're going to have to program it in on most vehicles,but replacing two relays??Bit fussy if you ask me.