Self Testing Power VIS Motor

stocktake · 8th March 2012, 15:12

Yup, you read it right, Now fitted the prototypes to my car to see how it stands up to normal life.

Here you can see a standard Power VIS pcb Now, the two yellow wires you can see are the ones added for the self test. I have drilled the pcb to allow the two wires to be taken to the other side of the pcb without disturbing it's seating.

The switches are drilled, you can see there is no need for nuts on the other end of the machine screws as I actually tap the switches. You can also see the test switch fitted, the switch is just short enough to sit next to the relay, heat shrunk the soldered joints just for good measure.

With the top fitted and the lock nut fitted to the switch it fits together absolutely as normal. I have used black heat resistant silicone on the underside of the switch to seal it to the casing top.

all that is left to do is to road test it for a while.

Operation couldn't be simpler, turn ign on but do not start car. Press the button on the VIS motor and hold, you can hear the VIS motor across, release the button and you will hear the motor return

The test button is a "push to make momentary" and remains active for a couple of mins after ign off as the motors are powered until the car goes to sleep

lovema75 · 8th March 2012, 16:02

Now that looks very clever an all that, but double Dutch to a simpleton like me.

Canonite · 8th March 2012, 16:07

Dave that's genius.

stocktake · 8th March 2012, 16:15

What i don't know is if by operating the VIS when the ECU is not asking for it is if it will log a fault code.

Now who do I know with a T4?

Still if a VIS fails it will log a code anyway. Time will tell

trebor · 8th March 2012, 16:23

Arise Sir Dave that is one hell of a mod, looking forward to the group order lol !

The_Monk · 8th March 2012, 16:29

Quote:

Originally Posted by stocktake

What i don't know is if by operating the VIS when the ECU is not asking for it is if it will log a fault code.

Now who do I know with a T4?

Still if a VIS fails it will log a code anyway. Time will tell

You coming Sunday Dave, that's a nice mod

BIG LEK · 8th March 2012, 16:29

Quote:

Originally Posted by stocktake

What i don't know is if by operating the VIS when the ECU is not asking for it is if it will log a fault code.

Now who do I know with a T4?

Still if a VIS fails it will log a code anyway. Time will tell

Thats an excellent idea dave, very clever I might have to try and copy that if you dont mind least that way I wont have to worry about flat batteries, LOL

RLeon · 8th March 2012, 17:23

Quote:

Originally Posted by stocktake

all that is left to do is to road test it for a while.

Operation couldn't be simpler, turn ign on but do not start car. Press the button on the VIS motor and hold, you can hear the VIS motor across, release the button and you will hear the motor return

The test button is a "push to make momentary" and remains active for a couple of mins after ign off as the motors are powered until the car goes to sleep

Dave,

Nice going, make something complicated simple. The only thing I can add to this is

Brek · 8th March 2012, 17:45

Awesome idea, after my fiddling about with a vis motor, I came to the conclusion its a very poorly made part, as is the plastic manifold itself, many cars are using similar plastic parts these days, cheap to make but expensive for the end user to fix :-(

I wonder how many vis unit fail because of the balance valve sticking, mine was quite stiff and has now been sanded to make it loose.

YIM YAM · 8th March 2012, 17:51

Absolutely brilliant,,,

you are the VIS master,

8th March 2012, 15:12	#1
stocktake Vis Whiz Rover 75 2.5 auto Saloon Join Date: Jun 2007 Location: LEEDS Posts: 20,590 Thanks: 2,057 Thanked 3,056 Times in 1,621 Posts	Self Testing Power VIS Motor Yup, you read it right, Now fitted the prototypes to my car to see how it stands up to normal life. Here you can see a standard Power VIS pcb Now, the two yellow wires you can see are the ones added for the self test. I have drilled the pcb to allow the two wires to be taken to the other side of the pcb without disturbing it's seating. The switches are drilled, you can see there is no need for nuts on the other end of the machine screws as I actually tap the switches. You can also see the test switch fitted, the switch is just short enough to sit next to the relay, heat shrunk the soldered joints just for good measure. With the top fitted and the lock nut fitted to the switch it fits together absolutely as normal. I have used black heat resistant silicone on the underside of the switch to seal it to the casing top. all that is left to do is to road test it for a while. Operation couldn't be simpler, turn ign on but do not start car. Press the button on the VIS motor and hold, you can hear the VIS motor across, release the button and you will hear the motor return The test button is a "push to make momentary" and remains active for a couple of mins after ign off as the motors are powered until the car goes to sleep __________________ Dave... Lost a few stones and a Gall Bladder and part of a bile duct and all of my dignity in the suppository incident Last edited by stocktake; 13th March 2012 at 19:51..

8th March 2012, 16:15	#4
stocktake Vis Whiz Rover 75 2.5 auto Saloon Join Date: Jun 2007 Location: LEEDS Posts: 20,590 Thanks: 2,057 Thanked 3,056 Times in 1,621 Posts	What i don't know is if by operating the VIS when the ECU is not asking for it is if it will log a fault code. Now who do I know with a T4? Still if a VIS fails it will log a code anyway. Time will tell __________________ Dave... Lost a few stones and a Gall Bladder and part of a bile duct and all of my dignity in the suppository incident

8th March 2012, 16:23	#5
trebor This is my second home Rover 75 CDTi Connoisseur SE & MG ZT Saloon 190 Join Date: Jun 2007 Location: Coven Posts: 12,523 Thanks: 526 Thanked 1,877 Times in 885 Posts	Arise Sir Dave that is one hell of a mod, looking forward to the group order lol ! __________________ www.midlandsnanomeets.co.uk Robs Car Gallery Coven near Wolverhampton WV9 2000 Cowley Built Rover 75 2.0 V6 Club SE/ Atlantic Blue/ Sandstone/Walnut (daily driver) 2003 Land Rover Freelander 1 TD4 HSE Helsinki Blue/Black Leather (swmbo daily driver)

8th March 2012, 17:51	#10
YIM YAM Loves to post MG ZT 190 Join Date: Jan 2012 Location: Rotherham Posts: 297 Thanks: 0 Thanked 0 Times in 0 Posts	Absolutely brilliant,,, you are the VIS master, __________________ [SIGPIC][/SIGPIC]

8th March 2012, 16:02	#2
lovema75 This is my second home 75 Tourer CDT Join Date: Dec 2011 Location: Enfield Posts: 3,925 Thanks: 63 Thanked 431 Times in 237 Posts	Now that looks very clever an all that, but double Dutch to a simpleton like me.

8th March 2012, 16:07	#3
Canonite This is my second home BMW 330d Tourer, MG ZT 180 SE XPG, VW Polo 6R 1.2 TDI Bluemotion Join Date: Jul 2011 Location: York Posts: 6,022 Thanks: 363 Thanked 574 Times in 319 Posts	Dave that's genius.

8th March 2012, 17:45	#9
Brek Gets stuck in MG ZT 180+ 2.5 V6 Manual Join Date: Dec 2011 Location: Darlington Posts: 643 Thanks: 0 Thanked 3 Times in 2 Posts	Awesome idea, after my fiddling about with a vis motor, I came to the conclusion its a very poorly made part, as is the plastic manifold itself, many cars are using similar plastic parts these days, cheap to make but expensive for the end user to fix :-( I wonder how many vis unit fail because of the balance valve sticking, mine was quite stiff and has now been sanded to make it loose.