Hello, I hope I can offer you some assistance.
Do you have the chassis number of the van? So I can obtain the correct wiring details.
If you don't want to give the chassis number what model is this? Does it have the small relay box on the passenger side inner wing below the washer bottle filler neck?
Let me know and I'll reply as soon as I'm able to.
below is the test procedure for the indicators, I've posted it this way as otherwise it becomes very confusing. Also when it mentions with trailer tow attachment this is the vans with the auxilary relay box I mentioned. It doesn't give the information as to if this is fitted to your van even with the chassis number.
The wiring colours are RD, red, BK, black, PK, pink, BU, blue, GN, green, YE, yellow.
The main indicator relay is located behind the dash it is where C2027 and A17 are shown in the diagram below.
Attachments are only available to registered users.
The multi function switch referred to is the indicator switch, the CJB is the fuse box inside the car and the BJB is the fuse box under the bonnet.
As I mentioned at the beginning the procedure is below.
PINPOINT TEST A : THE TURN SIGNAL LAMPS ARE INOPERATIVE
the images missing from above are images of the connectors but these aren't shown due to the format I've had to post this in, if you need assistance with the connectors let me know, or if I can help any further with any questions you have regarding this.