Ayc light

[Stash469]

Getting the red ayc warning light coming on once the engine is up to temperature. Doesn't come on before. Green lights still come on as they should. Any thoughts what could be causing this?

[Nick Mann]

No! The green lights should stop working when the red light comes on. The red light indicates a fault with the system - the system then stops shifting power around so no green lights.

The red light should have no link to the temperature of the engine either, other than the system can sometimes stop working due to the pump being tired and warm oil not pressurising so easily. However the timing of the red light and the engine temp should be nothing more than coincidental.

Have you tried a flashy dash code read?

[Stash469]

I've not had the codes read yet. Not sure where would do it round here (Cumbria). It's maybe just coincidence that it's always after the car gets up to temperature it comes on then?

[ianturbo]

You can read the code ,or post a video on here to get the answers, [emoji106]
83080

[Nick Mann]

https://www.clubvr4.com/forum/content.php?177-Reading-the-VR-4-s-Diagnostic-Codes-The-Flashy-Dash-Technique

Very few code readers work properly on the VR4. Almost none. The only thing I trust for diagnostic codes is the flashy dash technique.

[Stash469]

Wow. Did I ever tell you guys I love this forum? Just brilliant information. Thanks.

[Stash469]

Finally got round to doing the flashy dash read. This is what I got:

61 - Stop lamp switch system (broken wire) 27− 22
And
82 - Electromotive pump breakdown 27− 28

Does that mean the pump is totalled?

[Nick Mann]

It likely means the pump is not making enough pressure. The first thing to try is an adjustable switch from Malc, MPBVr4

[MPBVr4]

It likely means the pump is not making enough pressure. The first thing to try is an adjustable switch from Malc, MPBVr4

Thanks Nick. I have spoken with Graeme this afternoon and have sent him a switch

[TAR]

Super service as ever! /GJ

:happy: