Power steering headache

[madocks]

Trying to help my son fix his car, started off with intermittend PAS, light on dash with engine running which would clear after a few mins.

Taken to garage, codes read;

U111100 - Function restriction due to missing message - Passive, sporadic
01309 - Power steering control module - No signal

So far;

​

Have changed pump​

Have changed battery​

Have checked fuses above battery and all seem fine​

​

We have not coded the new pump, but google suggests that the PAS should still work but a light remain on the dash?

All codes are clear, drove for 20 mins and no new codes.

Currently seeking a VCDS locally for a proper scan.

Does anyone have any thoughts? could it be coding issue?

 

[SaracenUK]

Trying to help my son fix his car, started off with intermittend PAS, light on dash with engine running which would clear after a few mins.

Taken to garage, codes read;

U111100 - Function restriction due to missing message - Passive, sporadic
01309 - Power steering control module - No signal

So far;

​

Have changed pump​

Have changed battery​

Have checked fuses above battery and all seem fine​

​

We have not coded the new pump, but google suggests that the PAS should still work but a light remain on the dash?

All codes are clear, drove for 20 mins and no new codes.

Currently seeking a VCDS locally for a proper scan.

Does anyone have any thoughts? could it be coding issue?

DM222 is probably your man

 

[dm222]

never seen that error before, you probably have a wiring problem, also I think besides the fuse above the battery, there is one fuse inside the car that is for steering

when its a code issue the pump usually runs at a lower RPM providing less assistance and there is a light on the dash
when the coding is wrong the pump is always running at idle ~1000rpm, when everything is coded correctly the pump rpm increase up to 4000rpm according to the steering wheel movement and speed of the car, the lower the speed of the car the higher rpm is necessary for a effortless driving experience.

Is steering as stiff on idle as when engine is not running? If it is the same it indicates the pump is not running at all, then either you got a bad one or have fuse /wiring problem