I keep getting a recurring yaw sensor open circuit fault on my 2003 v8. It is intermittent but getting more regular. I’ve changed the sensor but still the same. IID reports that when it faults the air sus has a can fault also if it faults whilst driving it’s usually accompanied by the brakes momentarily applying which is rather disconcerting. I’ve checked connections at the abs unit. Any suggestions as to where to look next. I did find a post from years back with exactly the same problem, but the OP never reported back on whether it was fixed or not I have BT IID. No7 - 2003 V8 Vogue

Last edited by Rewmer on 17th Sep 2019 6:51pm. Edited 1 time in total

We had one once that would randomly fail when warmed up leading to the usual DSC fail, suspension fail etc.

The solution was to keep the rear vents on cold with minimal rear fan so the centre tunnel is kept cool

Changed the sensor out and it’s still exactly the same temperature doesn’t seem to play any part in faulting. No7 - 2003 V8 Vogue

The yaw sensor fault code was followed by 52 which relates to the suspension ecu. Tried swapping this out as well but still exactly the same. Does anyone have wiring details on the yaw sensor ? I can’t find it in Rave . No7 - 2003 V8 Vogue

Well after a lot trouble shooting I tracked it down to the ABS ECU. I would seem those little hair like wires had broken on the yaw sensor connection. £200 later after repair at ECU testing and we are back on the road. No7 - 2003 V8 Vogue

I would be interested to know how you finally tracked it down to ecu. I’ve just posted my own problem asking if gearbox and/or alternator repair could have caused what seems similar problems to yours.

Lenb Current: 2004 Vogue 4.4 V8 - 2004 Discovery 2
Previous: 2000 P38 DHSE - 1995 P38 DT Man - 1990 3.9 SE Classic, 1980 3.5 Classic 2dr

Swapped out the ecu with a replacement - fault gone. Although it through up lots of other faults as it was not coded to the car, the yaw sensor fault was gone. No7 - 2003 V8 Vogue