"Clutch temp high, limit use of pedal” alarm

[AdrianC]

Hello everyone,
I'm hoping there is someone out there that works for Vauxhall or Peugeot as a Master Technician, or a very clever auto electrician/coding specialist that can help to solve my dilemma:

I have a 21 plate Elite Nav 1.2 petrol with 41k miles.

When I bought the car last November, I had the car serviced with genuine Vauxhall oils/components and also scanned to see if anything could be learned, as I have a “clutch temp high, limit use of pedal” warning appearing, but only when using 6th gear? It does not generate any error codes. I think this warning is generated if clutch slip is detected. I don't think there is a dedicated clutch temp sensor?

As I understand it, the car imagines clutch slip if the calculation of ratios between road speed, wheel size (circumference) & speed, gear ratio etc don’t add up. There’s probably a lot of other parameters involved, I haven’t yet seen a good (full) explanation or a possible cure. Can anyone help me to understand how this warning gets triggered?

I also tried to promote some clutch slip by driving off and/or accelerating in a high gear, but no sign of any slip.

I have also driven the car in all gears with a diagnostic tester connected for live data stream of the road speed sensors etc, (all ok and match). I had the clutch & flywheel relearn process performed to see if it would clear it? (no luck).

When it comes on after about 1 minute of 6th gear driving, it also triggers an engine fan to operate, which I believe is correct as it thinks there is a temp issue.

It resets when the ignition is turned off, or if I revert to lower gears for a while, which suggests some corrupt data is being overwritten and once that happens the warning stops. Maybe the Ratio 6 data is incorrect? The engine spec. is ENG 1.2 EB2ADTS (O3S) and gearbox spec. is TRANS-MAN 6 SPD 189MM MB6 PSA.

I get the annoying chime unless I avoid 6th gear, plus it disables the speed limiter and cruise functions, which work fine if not in 6th gear "clutch warning" mode.

I have also noticed that the shift indicator in the dash extinguishes immediately in all gears except 6th, which takes about 4-5 seconds to recognise its in top gear and go out.

Does anyone know anything about the logic, where this data is stored (which module) or any other ideas that I can try to see if this cures the warning trigger?

Thanks in advance.

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