Relay 21 clicking (all the time)

[fidget]

When I bought my van the wipers and the heater blower didnt work , the battery was dead so I never bothered to much with them as the welding was the first job. As the welding is nearing completion, I had a faff about with the electrics .

To cut a long story short the heater blower came to life and the wipers started working normally ( as in when you turned them on) with me doing nothing more than turning the ignition on. Now they didnt do that saturday.

After a couple of goes relay 21 started clicking really fast , non stop .Even when I turned off the ignition and took the key out. Had a panic moment and pulled it out. My question is what does relay 21 do? My haynes manual is a bit vague with the early fuse box as mine is a 1983. I have a bentley manual aswell but this dosent list the relays (unless I missed it).

If the relay is a wiper relay how come its knocking the heater out too?

Theres probably more to this than meets the eye but its not a problem at the moment , just curious to find out whats going on/gone wrong.

thanks

James

[Hacksawbob]

Haven't got a relay list to hand, but a good place to start with any of that electrical gubbins is to remove and clean the earth crowns above the fuse box nearside on the A Pillar.

https://club8090.co.uk/wiki/VW ... bad_earths" onclick="window.open(this.href);return false;

[Cruz]

A quick google search suggests that 21 is the hazard relay

[fidget]

Thanks for that

Its somewhere to start at least, so the relay would have no direct effect on the function of the heating and the wipers then? Its quite obvious I know but ive seen stranger things happen on old vehicle wiring.

thanks

james