Left turn indicators working but not on dash or beeper

[Demondad]

Hi all, I think possibly the heat has messed with my electrics while I’m away at Spa for the GT challenge. So I first noticed when turning the steering to the right about 45deg a quick indicator beep sounded. Then later turning left into the circuit it seemed the indicator didn’t work. On further inspection the outside indicator lights all work and cancel as do the hazards but there’s no beep or left dash indicator. I’ve been under the dash and in the dial binnacle, checked ribbon cables are secure, looked under the rubber steering shroud and all looks connected well. My guess is something in the column cancelling gadget. Bit concerned I will be driving along thinking my indicator is off when it’s on. Any thoughts much appreciated?

[Byker28i]

There's a bit in the workshop manual about setup
https://www.nineelmsphotography.com/cerbera/images...

Or it could be your ribbon cable in the steering wheel, they break occaisionaly

Does this help?
There's a 10 pin and a 5 pin and you can put them the wrong way around... I've drawn on mine with permanent pen so I know orientation.


Turn signal switches go through the 5 pin plug

[Demondad]

Thanks Dave, Back home now so I'll get my head around the circuit diagram and under the dash, and I'll be sure to mark up the ribbon cables before I pull them apart.

[Markb139]

I’ve been reverse engineering the wheel ecu. One of its functions is to implement the turn indicators and cancel. As yours are working and cancel yours must be working fine.
The signals leave the wheel ecu and head off to the indicator ecu, which is probably ok.
I’d check the connections near the inside LEDs.

[Demondad]

I’m hoping this is the problem. The loom was resting on the metal disc which acts as the cancellation light mask. It has sliced through the green/red cable. Hopefully rejoin these cables and all will be fine. This must have been the reason for the beeper to sound briefly when I turned the steering wheel.

[FarmyardPants]

Demondad said:

I m hoping this is the problem. The loom was resting on the metal disc which acts as the cancellation light mask. It has sliced through the green/red cable. Hopefully rejoin these cables and all will be fine. This must have been the reason for the beeper to sound briefly when I turned the steering wheel.

Yikes, good find!