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disable immobiliser

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mucho View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mucho Quote  Post ReplyReply Direct Link To This Post Topic: disable immobiliser
    Posted: 31 Jul 17 at 10:29
Hi, Please help me with the steps to disable the immobiliser. It is type Conlog, with two pin connectors all with white wires. I will really appreciate this.

Mucho
2.6i Caravelle 1997 powered by Audi 5 Cylinder - Motronic
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Wychall Quote  Post ReplyReply Direct Link To This Post Posted: 31 Jul 17 at 13:23
Do you not have the overide key switch on the steering column?
As an emergency thing I have heard that just unplugging both connectors allows the vehicle to be started. Not tried it myself though.
South African 1991 2.5i 5cyl Microbus - virgin, not campered - piloted by Brian.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mucho Quote  Post ReplyReply Direct Link To This Post Posted: 31 Jul 17 at 14:54
Hi, If by override key switch on the column you mean where the key fob is plugged to deactivate immobiliser and alarm, yes I have that, but it wont work either. I have also unplugged the conlog box as advised in another forum, didn't start either.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Wychall Quote  Post ReplyReply Direct Link To This Post Posted: 31 Jul 17 at 16:33
Your immobiliser must be a later version than mine. Do you know which circuits are immobilised? In mine it is just the starter motor circuit. Try replicating that circuit to spin the starter motor.
You do have a wiring diagram I assume?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote dumbo Quote  Post ReplyReply Direct Link To This Post Posted: 31 Jul 17 at 17:22
1997 its not a T3 then??? thats an R...reg???Confused

Edited by dumbo - 31 Jul 17 at 17:23
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Wychall Quote  Post ReplyReply Direct Link To This Post Posted: 31 Jul 17 at 18:19
The T3 carried on in production in South Africa until 2003. But it's not an R reg as Mucho lives in Kenya.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote dumbo Quote  Post ReplyReply Direct Link To This Post Posted: 31 Jul 17 at 19:26
okClap  well done thought 97??? fair play 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote dumbo Quote  Post ReplyReply Direct Link To This Post Posted: 31 Jul 17 at 19:27
ok Clap well done 97??? fair play
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Post Options Post Options   Thanks (0) Thanks(0)   Quote dumbo Quote  Post ReplyReply Direct Link To This Post Posted: 31 Jul 17 at 19:28
?????posted twice ???Confused
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mucho Quote  Post ReplyReply Direct Link To This Post Posted: 01 Aug 17 at 10:04
The wiring diagram I have is not entirely accurate for my model. The wisdom from the folks over at syncroSA is that the ECU needs reprogramming. Merely disconnecting the conlog box didnt work for me. Still mulling over my options.

edit: Oh and the starter cranks, so it has to be either the fuel pump or the ecu, or both


Edited by mucho - 01 Aug 17 at 10:28
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Wychall Quote  Post ReplyReply Direct Link To This Post Posted: 01 Aug 17 at 12:14
Have you read the saga where Silverbullet was looking for a replacement ecu, only to find that there was a broken wire in the plug for the ecu?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mucho Quote  Post ReplyReply Direct Link To This Post Posted: 01 Aug 17 at 13:30
not yet, probably worth a read.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mitch993 Quote  Post ReplyReply Direct Link To This Post Posted: 01 Aug 17 at 22:42
Originally posted by mucho mucho wrote:

The wiring diagram I have is not entirely accurate for my model. The wisdom from the folks over at syncroSA is that the ECU needs reprogramming. Merely disconnecting the conlog box didnt work for me. Still mulling over my options.

edit: Oh and the starter cranks, so it has to be either the fuel pump or the ecu, or both

Brief look at the wiring diagram for 1995 model, shows the starter and fuel pump fed from relays which are both controlled by the alarm unit, I can't see any connection from the alarm unit to ECU.

Basic tests - If it cranks over, check for spark at spark plug (to rule out ECU) I suspect you will have spark.
Ignition on - check what you have at the fuel pump with a multi meter, I think you will find no earth.
Report back on what you find and we can go from there.
If I get chance, ill do some checks on mine with the immobiliser active (I know mine disables the starter, not sure if fuel pump is disabled)Thumbs Up
Paul


Edited by mitch993 - 01 Aug 17 at 23:16
Paul Mitchell, SA 2.6 microbus
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mucho Quote  Post ReplyReply Direct Link To This Post Posted: 02 Aug 17 at 07:34
I have my work cut out for the weekend then. Thanks for the pointers, will do the tests and report back.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote marlinowner Quote  Post ReplyReply Direct Link To This Post Posted: 02 Aug 17 at 12:36
It was me that found that unplugging the immobilizer allowed the van to start, but obviously VW addressed that with a new immobilizer.
Here is a link which includes an email address for someone with a wiring diagram for a Caravelle 2.6I conlog.
http://www.fixya.com/cars/t17492450-schematic_wiring_diagram_2_6i_vw

Hopefully he can help.
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