BCM issues and compatibility question

[Hivisibility]

Good day all.
Olde faithful (V6 auto VR S-Pac ute)has been playing up again (might have to rename her to contrary Mary). She has been running beautifully for a few months, a little issue with leaky injectors and starter motor but all in all for a ute with 26 years and 4000000000000000 kilometres pretty good indeed.

Now last week lots of rain, wipers wouldn't turn off everytime, beginning thursday, got streadily worse until I just had to disconnect them altogether, then the Cruise light came on permanently (the Cruise control hasn't worked in the time I've owned it), and then the central locking stopped working, then this morning it wouldn't turn over, nothing, no clicking, just the relay clicking in...

So I tried the hit the key fob button just as you go to start and it starts... but ONLY if you do this...

so rundown
94 VR ute S-Pac V6
VATs removed
New/good Coil plate (DFI)
New/good CAS
Good fuel pump
Dodgy injectors or pressure reg (floods after sitting for a few hours, no biggy always started)
New Starter motor 3 weeks ago
New battery 6 months ago tests great
New reco alternator 4 months ago
New fob Battery as of three hours ago

Issues
No cruise control (hasn't worked since I've owned it)
Power mirrors don't work (haven't worked since I've owned it)
Central locking and door solenoids not working as of today
Cruise light on all the time (as of yesterday)
Wipers not turning off/no intermittent function (as of last friday)
Doesn't turn over/start unless you hit unlock/lock button on fob as you turn key (as of today)
Key can be removed from barrel while car is running (just noticed this, but could have been like it for years)



So yep I reckon this all points to BCM issues, anyone with the knowledge care to confirm this would be great....

I'm not game to drive it anywhere now as I feel the next stage is total circuit failure (maybe water ingress from this insane wet weather) and will leave me needing a tow. I have plenty of other vehicles to use, this is just my favourite daily driving one...

Next part of the question is if my guestimation is right...what BCM would work, as the levels do seem to apply to wagons and sedans, not having any success finding out about utes? can I use a sedan one, or does it have to be ute specific? Also would VS one be okay as I think if I can find the keys I have another one out of our project VS ute....

Thanks in Advance.

 

[woteva]

VS bcm is not a straight swap into a VR as pinouts are different.
If you already have a VS bcm and lots of time, it might be able to work ?

For a straight swap replacement, pull yours out and post up a pic of the numbers from the sticker.

 

[losh1971]

You need a ute one and as mentioned above the serial number is the key. Basic Exec won't have the same features as S Pack ute, full poverty pack doesn't have cruise in VR.

 

[losh1971]

On that list of accessory faults may or may not be BCM. Common fault with mirrors is the switch, cruise common fault is the stalk and cruise cancellation switch. There can be other reasons for central locking not working too, besides the BCM. If you can get a BCM and key cheap enough its probably worth a try as it will require not much work if it irons out all the problems in one go.

 

[Trevor loves holden.]

Model Variant Barcode Prefix Old Part Number Barcode Prefix New Part Number
VR Manual O/R TDM A 92042522 A 92048790
VR Manual O/R UTE U 92042761 U 92048787
VR Manual O/R LOW L 92042498 L 92048788
VR Manual O/R MID M 92044097 M 92048789

VR TDM A 92048790 A 92048790
VR UTE U 92048787 U 92048787
VR LOW L 92048788 L 92048788
VR V5V V 92048786 V 92048786
VR MID M 92048789 M 92048789
VR LUX X 92045885 X 92045885
VR HIGH H 92049795 H 92049795
VR EXP E 92048243 E 92048243

VS UTE U 92049148 B 92055494
VS LOW L 92049150 B 92055494
VS MID M 92049146 C 92056492
VS LUX X 92049147 F 92056493
VS HIGH H 92049149 D 92055379
VS EXP E 92054339 E 92054339
VS ALM MID - KIT A M41321 A M41321

Doctor Bob, Apr 13, 2008

 

[Hivisibility]

Thanks Guys... that info is great Trevor, really does all point to BCM, which controls (unnecessarily imo) these basic functions of the vehicle systems...
It turns out i can get 2 from a bloke within my area with keyheads.....I'm changing drivelines this winter to a L67 which i built ages ago and has been looking for a home, so while I'm not fussy about too many creature comforts. I do like my cars to be reliable, streetable and have some basic functions like heater and A/cond.

 

[Trevor loves holden.]

Thanks Guys... that info is great Trevor, really does all point to BCM, which controls (unnecessarily imo) these basic functions of the vehicle systems...
It turns out i can get 2 from a bloke within my area with keyheads.....I'm changing drivelines this winter to a L67 which i built ages ago and has been looking for a home, so while I'm not fussy about too many creature comforts. I do like my cars to be reliable, streetable and have some basic functions like heater and A/cond.

You can only try, at less it narrows it down. If gremlin persist after the swap out then you will have to look into power supply to those areas,
Cruise control- could be the motor or module or power supply.
wipers wouldn't turn off - Stalk stuffed or relay stuck on.
Power mirrors- either bad connection behind the door card or even broken wire in-between the door jam, switch has dirty contacts.
Central locking and door solenoids not working- blown fuse or again broken wires between door jam.
Cruise light on all the time - faulty switch or bad earth
Doesn't turn over/start unless you hit unlock/lock button on fob as you turn key- battery you replaced isn't getting good contact or is not a alkaline battery or the pin on the fob isn't contacting the slip-ring.
Key can be removed from barrel while car is running- Warn barrel so any blade will start your car even a transmission dip stick.
These may be just a few things to check if the bcm has no effects. PS sounds more like a earth issue on somethings.

 

[Hivisibility]

Too right Trevor earth tracing back was my first thought, used to be common on the old Kingy one tonners and panelvans, the brake lights would come on when cigarette lighter or the likes was used... I'm sorta thinking that all of the BCM basic functions playing up is either a big coincidence OR the BCM has got condensation...like you say eliminate the simple then if still there chase the wiring...it has always been the way when I troubleshoot issues in anything electro-mechanical, do the bleedin' obvious first and 90% of the time you get it straight up.

As an interesting aside the central locking started working this morning after disconnecting the battery for 12 hours, everything else listed is still not working.

 

[losh1971]

As an interesting aside the central locking started working this morning after disconnecting the battery for 12 hours, everything else listed is still not working.

I don't think it's your BCM. I think most of the problems are stemming from faulty switches. My ute had all the above failings except wipers. I never considered the BCM and neither was it the issue.

 

[_R_J_K_]

Gotta ask though, why do you have VATS disabled?