Variatronic steering

[VN_SS_CM]

Ok everything is hooked bar solenoid.filled with fluid accidently to the top, fluid doesn't seem to go down when car is running. Tried lock to lock no change

 

[MikeC]

What's the solenoid filled with fluid? The pump should be filled to the level on the dipstick.

 

[VN_SS_CM]

crises averted turned back and forth whilst car is off started it again and it has sucked it in must of had a big air lock....so far so good next step is to wire up the bcm for its one job lol

 

[MikeC]

Keep wiring to the minimum needed for the one job. Years ago VS Stato dash clusters used to burn out when installed in VQ's- I can't remember why.

 

[someguy360]

Keep wiring to the minimum needed for the one job. Years ago VS Stato dash clusters used to burn out when installed in VQ's- I can't remember why.

The electronics in the VR/S level 3 clusters are different to the clusters in the VN/VP/VQ even though the clusters physically look the same.

The colour of the ribbon cables on the back are different and thats a good way to tell which ones which.

Putting a VR/S cluster in a VN/VP or vice versa will release the smoke from the electronics

 

[VN_SS_CM]

Ok hooked it as per wiring diagram nothing else is connected to the BCM. How do I test the output from the BCM for the solonoid. Multimeter across solenoid pins is 8.4ohms

 

[MikeC]

I've never done this but you'll need to supply a speed signal into the BCM. The GMH manual says the BCM should supply the following pulse width modulated currents for the corresponding road speeds:

0.65Amps @ 1-10 km/h
o.4 Amps@40 km/h
0.0 Amps@ 80+km/h

I don't know if these PWM currents are the simple currents that can be measured on the amp scale of a multimeter. Maybe start by seeing if the BCM supplies 0.65 amps with the car stationary.

 

[VN_SS_CM]

It works!!! went for a test run today can feel it get stiff at high speed.....bcm is living out its life controlling nothing but powersteering.