957T power steering fault on start

[tracer.smart]

My 2007 Cayenne Turbo has an ad hoc issue when starting hot or cold.

When firing up, the power steering doesn’t work. Turning off and on again, power steering is present as normal. No error codes present on diagnostic read out.

Any ideas, I’m scratching my head on this one?

Thanks for any suggestions.

[tracer.smart]

Thank you both, excellent tips. Will start with your pointers. Will check the battery and test with the relay removed. Just in case I’ve ordered a new relay on assumption it will take ages to arrive from Germany.

[tracer.smart]

Removing the relay replicated the issue. HP Porsche have ordered the part, 2-3 days to get here. Will report back once swapped.

[tracer.smart]

Part number is 955.618.047.04

HP Porsche ordered it and swapped it over today. Took a week to arrive, which is not bad considering.

[tracer.smart]

Yes so far, hasn’t re-occurred. Relay was c.£100.

Should add mine was intermittent too.