That TSB is about earlyer modells than yours, i posted it just to clarify... the black wires to the relay's coils should be zero to ground if it's above 100 that's the problem, means that somewhere in a connector there is a bad contact on that earth path, splice with a grounded wire into that black wire see what happens
that's not OK
Thanks, didn't realize that rear relay was for ignition, I thought that was the heater blower one because that's the one I bypassed by bridging the pins and it triggered the heaters. Does that mean my relays are in a different order or am I bypassing the ignition load?
I can't tell you that from distance, you'll have to find a suitable diagram and work with that if you know how to identify the circuits based on the wire colour codes, all i can give you is for '95 modell https://smallpdf.com/file#s=97125f09-a792-497f-a4b4-421f883e6e9d
Quite right, I'm a bit out of my depth with electronics when I can't visualize the circuit layout! Thanks for the advice though, I'll let you know if I find the problem. Could there be a short inside the fusebox itself?
That's always a possibility
Ok by now you have the blower relay confusingly called ignition load relay, and hopefully you have now found the front wiper relay.
Ah does that mean I've been bypassing the ignition load relay, if so why are only the heaters operating when I do this? Also, its a 94 so I don't think the windows have a BCU. Since the mirrors aren't working as well does that imply the initial auxiliary feed is the issue since it's not relay related, does it split off to the specific circuits that aren't working?Ok by now you have the blower relay confusingly called ignition load relay, and hopefully you have now found the front wiper relay.
The mirrors don't have a relay and the electric windows has only an ECU.
As far as a “short” in electrical terms that means a fuse has blown, if fitted and if not you’ll will have a hot piece of wire and maybe a burnt out component .
A ‘break’ in a circuit maybe a possibility
Wasn’t you bridging a relay supply to the coil directly and running the fan, therefore bypassing the operating switch circuit?
Thanks, the diagrams at the end are really helpful for identifying the relays but have now got me even more confused how only the heaters are working when bridging the ignition load relay k127, does it not supply anything else. Also, it still allows me to adjust the fan speeds meaning I can't be bypassing the switch?
When I bridge it, I can switch on and off at the slider switch and control the speed.
Ok now that clear
it appears that the ignition load relay is isn’t operating correctly when the ignition switch is in position 2. So iffy relay due to no 12v supply, or burnt relay contacts not closing if the relay is operating.
Ok now that clear
Swap the relay with the one next door, or any of the yellow relays as they all have the same pt. no YWB10027L
Hi guys,
