Hi guys,
So I've had this 1996 VW Mk3 Golf VR6 for a few weeks now. I recently drove it to Tafe on a Monday, it drove fine getting there, it also drove fine on our morning break but started misfiring on lunch break/not firing on all cylinders.
I managed to get back into the car park and park it while it was running on a couple of cylinders where I performed some basic diagnostics and the cause of the problem was a cracked coilpack which has now been replaced.
After I plugged back in the ignition leads, the car would not start at all (cutting off after 1 second). Plugging in Vagcom I receive the following error:
2 Faults Found:
17978 - Engine Start Blocked by Immobilizer
P1570 - 35-00 -
01249 - Fuel Injector for Cylinder 1 (N30)
31-10 - Open or Short to Ground - Intermittent
Readiness: N/A
Ignore the second fault as we had unplugged an injector and that is most likely why that error is there. Obviously this is a immobilizer fault? But how does this suddenly just happen?
I am aware that there are 4 components to starting the car:
1. Key
2. Key reader
3. Key Barrel
4. Immobilizer box
I've read that the key could be faulty or, the key reader, or rarely the immobilizer box it's self. So I purchased those 4 things from a scrapyard, fitted them today, cleared the previous faults, cleaned and tested the earth to the immobilizer box but the car would still get cut off from the immobilizer.
Now I did another scan with Vagcom and pulled the following faults:
2 Faults Found:
00668 - Supply Voltage Terminal 30
07-10 - Signal too Low - Intermittent
17978 - Engine Start Blocked by Immobilizer
P1570 - 35-00 -
Readiness: N/A
-------------------------------------------------------------------------------
Address 25: Immobilizer Labels: 1H0-953-257.lbl
Part No: 1H0 953 257 B
Component: IMMO VWZ3Z0V7369602 V00
Coding: 09600
Shop #: WSC 01115
VCID: 2A5099A0D65D156E0F-4B00
1 Fault Found:
01177 - Engine Control Unit
65-10 - Unauthorized - Intermittent
Yes for some reason I have gotten more information from the scan with a new immobilizer, key, key reader etc.
Maybe my old immobilizer was fine but the key or reader was faulty? What is the cause of this cutout?
There is a possibility that the scrapyard gave me back my OLD immobilizer which I gave as an example... So they will be around on Monday to give me that one back as well. So I could have the OLD immobilizer installed at the moment hence why I am getting the exact same fault.
Anyway this is just my weeks research, wondering if any of you guys now of a bypass as well?
Thanks,
Josh
So I've had this 1996 VW Mk3 Golf VR6 for a few weeks now. I recently drove it to Tafe on a Monday, it drove fine getting there, it also drove fine on our morning break but started misfiring on lunch break/not firing on all cylinders.
I managed to get back into the car park and park it while it was running on a couple of cylinders where I performed some basic diagnostics and the cause of the problem was a cracked coilpack which has now been replaced.
After I plugged back in the ignition leads, the car would not start at all (cutting off after 1 second). Plugging in Vagcom I receive the following error:
2 Faults Found:
17978 - Engine Start Blocked by Immobilizer
P1570 - 35-00 -
01249 - Fuel Injector for Cylinder 1 (N30)
31-10 - Open or Short to Ground - Intermittent
Readiness: N/A
Ignore the second fault as we had unplugged an injector and that is most likely why that error is there. Obviously this is a immobilizer fault? But how does this suddenly just happen?
I am aware that there are 4 components to starting the car:
1. Key
2. Key reader
3. Key Barrel
4. Immobilizer box
I've read that the key could be faulty or, the key reader, or rarely the immobilizer box it's self. So I purchased those 4 things from a scrapyard, fitted them today, cleared the previous faults, cleaned and tested the earth to the immobilizer box but the car would still get cut off from the immobilizer.
Now I did another scan with Vagcom and pulled the following faults:
2 Faults Found:
00668 - Supply Voltage Terminal 30
07-10 - Signal too Low - Intermittent
17978 - Engine Start Blocked by Immobilizer
P1570 - 35-00 -
Readiness: N/A
-------------------------------------------------------------------------------
Address 25: Immobilizer Labels: 1H0-953-257.lbl
Part No: 1H0 953 257 B
Component: IMMO VWZ3Z0V7369602 V00
Coding: 09600
Shop #: WSC 01115
VCID: 2A5099A0D65D156E0F-4B00
1 Fault Found:
01177 - Engine Control Unit
65-10 - Unauthorized - Intermittent
Yes for some reason I have gotten more information from the scan with a new immobilizer, key, key reader etc.
Maybe my old immobilizer was fine but the key or reader was faulty? What is the cause of this cutout?
There is a possibility that the scrapyard gave me back my OLD immobilizer which I gave as an example... So they will be around on Monday to give me that one back as well. So I could have the OLD immobilizer installed at the moment hence why I am getting the exact same fault.
Anyway this is just my weeks research, wondering if any of you guys now of a bypass as well?
Thanks,
Josh
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