Punto.ASR - Hill Holder / ESP light. Triggered by handbrake!

[simonh5676]

I have an issue with my Fiat Punto Evo, I'm hoping someone can help. I've had this problem for a while with the warning light coming on - my garage thought it was the yaw rate sensor, so I sourced one myself and they replaced the old one. The car was fine for a couple of days but then the warning light came back off. However this is the odd thing - it seems to be triggered by the handbrake. If I turn on the engine with handbrake off, the warning light *usually* doesn't come on, but if I turn the engine on with the handbrake applied the light comes on every single time. If I set off without the handbrake on, the warning light will stay off throughout the journey, unless I apply the handbrake and it will then come on instantly.

Has anyone any theories as to why this will be and what I can do to fix this? Any thoughts would be much appreciated.

Thanks

[paul_c123]

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