Steering fault

[Roverfan]

I’ve had my own random thought.....i was looking for diagrams etc and i saw a fuse location board for the drivers side....

i have had a leak from the sunroof and I’m wondering if water has ingressed and taken out a fuse within that board that relates to the power steering??

For what's its worth since the fault can disappear its unlikely to be a fuse but water on boards/water damage can cause these types of issues

[morski]

The earth wire is a 16mm which is in pin 2 of the 2 pin plug. It comes out of the plug and is connected to the left chassis leg underneath near the rear lower arm. Whether yours has been ripped off at that point and has had a new wire put in back to the battery i dont know. But thats how elsawin shows it and i have seen it on mine too.
check the gauge of the replacement earth wire; it should be the same thickness as the old one.
you say it runs back to the battery? what all the way back under the car into the wheel well to the battery?
Check the other comms wires in the plug and make sure the contacts are clean and not corroded

So the plot thickens......

had my local garage take a look. That earth wire that Morski said should just connect back to the body does NOT!! It looks like it was deliberately unplugged and taped up. There appears to be another earth wire that runs right back to the battery. They also mentioned there are 3/4 trigger wires which run into the wing and into the engine bay; maybe one of them is broken??

the fault disappeared on my way there and in hindsight i should left the ignition on as we may have been able to talk to the steering module.

The garage have given me the car back and told me to grab some codes if and when the fault disappears; looks like I’ll be carrying my laptop for the foreseeable unless anyone can shed any further light?

[morski]

Check fuse no 1 on the black holder drivers side.
Are you seeing a power fault or flexray fault?

I’ve had my own random thought.....i was looking for diagrams etc and i saw a fuse location board for the drivers side....

i have had a leak from the sunroof and I’m wondering if water has ingressed and taken out a fuse within that board that relates to the power steering??

[RhysoTDI]

The earth wire is a 16mm which is in pin 2 of the 2 pin plug. It comes out of the plug and is connected to the left chassis leg underneath near the rear lower arm. Whether yours has been ripped off at that point and has had a new wire put in back to the battery i dont know. But thats how elsawin shows it and i have seen it on mine too.
check the gauge of the replacement earth wire; it should be the same thickness as the old one.
you say it runs back to the battery? what all the way back under the car into the wheel well to the battery?
Check the other comms wires in the plug and make sure the contacts are clean and not corroded

Yes thats whats happened; it’s NOT connected to that earth point behind the rear lower arm on the front passenger wheel

That is what the garage said to me

they disconnected all the plugs on the rack and cleaned them all up; there was no sign of oil or water ingress in them so can only assume the module is ok and the fault lies within the wiring somewhere?

[RhysoTDI]

Check fuse no 1 on the black holder drivers side.
Are you seeing a power fault or flexray fault?

in the engine, abs, central electronics, instruments and can gateway it’s showing a missing message fault due to lack of comms with the power steering module The power steering module itself is saying it cannot be reached

when the fault first occurred back in November last year i was able to grab a code and it was saying it had insufficient voltage

[morski]

I think you might need to start investigating the wiring...

[RhysoTDI]

I think you might need to start investigating the wiring...

Yup. Trying to get it booked back into the garage fo further investigation

Appreciate your help on this

[morski]

I was hoping you would be fixing it yourself

[RhysoTDI]

I was hoping you would be fixing it yourself

lots of things preventing me from doing so....mainly i have zero knowledge of electrical systems and knowing my luck I’d make things worse!!

[RhysoTDI]

Not been able to get the garage to look at it but when i started the car today the warning disappeared and I was able to grab some fault codes!!