4ws fault

[ziyaan]

Hello

I got my 4ws light on now after a few reset it keeps coming back

I'm getting code 21


21 Main Steering Angle Sensor Rear 6,13 CU, RSSAS, RMSAS, HC


Where is this sensor ?

[taz8520]

On the 4ws unit I think

[ziyaan]

Hmmm yes

Anyone have any experience with this particular code

I havnt knocked the back to my knowledge

It came on ages ago and I reset it

Then for so long it didn't come on until it was hot a few months ago reset it a coupls of times and now it came on again few days ago when it was hot and this time has stayed on

[taz8520]

It might just become dirty being under the car, I would give it a good clean, reset the code the see if arrears again

[ziyaan]

I don't see the sensor getting dirty it's sealed and covered quite well

I'm home now I will research and see what go on

[ziyaan]

1 of my mot advisory was my steering rack

I feel a bit of clickin at a standstill

That code 21, can that code be because of the front steering rack?

Rssas and rmsas refer to read steering and rear sub angle sensor

[indigolemon]

First step would be to check the bible man. Should be a link to the service manual in the wiki here:

http://www.ludegeneration.co.uk/wiki/in ... Literature

Grab that, it should have a breakdown of the 4WS system plus any diagnostic procedures.

[ziyaan]

Yes I have been looking through the all in 1 PDF I have for the 5th gen

This 1 is the same right?

I can't find any 4ws test procedures though
You know the flow chart 1

Does the 4th gen bible have 1

[Merlin]

The only 4WS info is in the 4G service manual as USDM 5th gens didnt get 4WS.

[indigolemon]

Page 612(17-30) of the 4G manual man