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Discussion Starter · #1 · (Edited)
Background:

My 2001 VW Golf TDI (A4 ALH) sat for a couple of years registered non-op after throwing CEL P0402 Excessive EGR Flow.
The Vehicle had 255K miles at the time, I purchased it at 230K miles and the previous owner was unaware of the timing belt ever having been done and he said that he had purchased it at 140K miles - so I decided to let the vehicle sit until I could find the time or money to do the timing belt service at the same time as correcting my EGR related fault.

I finally found the time and the following is the list of maintenance that I have done while tearing it all apart and repairing said issues.

New High Mileage Timing Belt Kit
New Water Pump
New Cam and Lifters
New EGR Valve
New MAF
New N18 Valve
New Fuel Filter
New Fuel Lines
New Vacuum Lines

Long story short the vehicle now runs great and the check engine light is long gone. My problem now lies with getting the dreaded OBDII Readiness monitors to complete as I live in California and all monitors need to show PASS for me to be able to pass smog and register the vehicle again...

I have since driven the vehicle over 1000 miles and have dedicated much time to rigorously following drive cycles to a "T" although have been unsuccessful in getting the Comprehensive Component Monitor to show as PASS. All other vehicle monitors have successfully completed.

A couple weeks go by driving the vehicle hoping that my readiness monitors would complete when one day right after turning the vehicle on the engine fired up and the vehicle shut itself off immediately... didn't think much of it as I cycled the ignition and the vehicle started right back up - did a full scan later that evening to see the following:

Wednesday,29,June,2022,20:16:13:40726
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 22.3.1.4 (x64)
Data version: 20220407 DS337.0
www.Ross-Tech.com


VIN: 9BWGP61J814031016 License Plate: 8BKR363
Mileage: 414390km-257490mi Repair Order: 0001



--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


Chassis Type: 1J - VW Golf/Bora IV (1998 > 2006)
Scan: 01 02 03 08 15 16 17 19 22 29 35 36 37 39 46 47 55 56 57 75
76

Mileage: 414390km-257490miles
-------------------------------------------------------------------------------
Address 01: Engine Labels: 038-906-012-AGR.clb
Part No: 038 906 012 CP
Component: 1,9l R4 EDC G100SG 2839
Coding: 00002
Shop #: WSC 00000
VCID: 60C15F58E0DCB58FAF-4B18

1 Fault Found:
17978 - Engine Start Blocked by Immobilizer
P1570 - 35-10 - - Intermittent
Readiness: 0 0 1 0 0

-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 1C0-907-37x-ABS.lbl
Part No: 1C0 907 379 C
Component: ABS FRONT MK60 0103
Coding: 0004097
Shop #: WSC 00000 785 00200
VCID: 2A55FD7086603FDFB1-515A

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags Labels: 6Q0-909-605-VW5.lbl
Part No: 6Q0 909 605 F
Component: 07 AIRBAG VW6 0202 0003
Coding: 12343
Shop #: WSC 00000
VCID: 3A75CD3026C08F5FC1-515A

1 Fault Found:
00532 - Supply Voltage B+
07-10 - Signal too Low - Intermittent

-------------------------------------------------------------------------------
Address 17: Instruments Labels: 1J0-920-xx5-17.lbl
Part No: 1J0 920 905 L
Component: A4-KOMBIINSTR. VDO V04
Coding: 07232
Shop #: WSC 09225
VCID: 3061EF18F0BC450F7F-515A

Subsystem 1 - Part No: IMMO
Component: IDENTNR: VWZ7Z0Y2740629
IMMO-IDENTNR: VWZ7Z0Y2740629

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway Labels: 6N0-909-901-19.clb
Part No: 6N0 909 901
Component: Gateway K<->CAN 0001
Coding: 00006
Shop #: WSC 00000
VCID: 70E12F18303C050F3F-513C

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv. Labels: 1J0-959-799.lbl
Part No: 1J0 959 799 AJ
Component: 60 Zentral-SG Komf. 0001
Coding: 04096
Shop #: WSC 00000
VCID: 060D69C022B83BBFF5-4B00

Subsystem 1 - Part No: 1J1959801C
Component: 60 Tõrsteuerger. FS0002r

Subsystem 2 - Part No: 1J1959802D
Component: 60 Tõrsteuerger. BF0002r

Subsystem 3 - Part No: 1J4959811C
Component: 60 Tõrsteuerger. HL0002r

Subsystem 4 - Part No: 1J4959812C
Component: 60 Tõrsteuerger. HR0002H

3 Faults Found:
00953 - Interior Light Time limit
25-10 - Unknown Switch Condition - Intermittent
01179 - Incorrect Key Programming
35-00 - -
00944 - Heated Exterior Mirror; Passenger Side (Z5)
35-00 - -

-------------------------------------------------------------------------------
Address 56: Radio Labels: 1J0-035-18x-56.clb
Part No: 1J0 035 180 D
Component: RADIO 3CP 0002
Coding: 01401
Shop #: WSC 00000
VCID: 20411F58A05CF58FEF-4B18

No fault code found.

End-------------------------(Elapsed Time: 04:25)--------------------------


I reset the codes, disconnected the battery and connected the terminals as I have seen many advise in the forums - Started fresh on the drive cycles and a couple hundred miles go by over a couple of weeks or so and the same thing happens - engine fires up then shuts down but then starts right up upon cycling the ignition. Full scan that evening:

Sunday,31,July,2022,21:42:15:40726
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 22.3.1.4 (x64)
Data version: 20220407 DS337.0
www.Ross-Tech.com


VIN: 9BWGP61J814031016 License Plate: 8BKR363
Mileage: 415120km-257943mi Repair Order: 0004



--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


Chassis Type: 1J - VW Golf/Bora IV (1998 > 2006)
Scan: 01 02 03 08 15 16 17 19 22 29 35 36 37 39 46 47 55 56 57 75
76

Mileage: 415120km-257943miles
-------------------------------------------------------------------------------
Address 01: Engine Labels: 038-906-012-AGR.clb
Part No: 038 906 012 CP
Component: 1,9l R4 EDC G100SG 2839
Coding: 00002
Shop #: WSC 00000
VCID: 60C15F58E0DCB58FAF-4B18

1 Fault Found:
17978 - Engine Start Blocked by Immobilizer
P1570 - 35-10 - - Intermittent
Readiness: 0 0 1 0 0

-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 1C0-907-37x-ABS.lbl
Part No: 1C0 907 379 C
Component: ABS FRONT MK60 0103
Coding: 0004097
Shop #: WSC 00000 785 00200
VCID: 2A55FD7086603FDFB1-513C

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags Labels: 6Q0-909-605-VW5.lbl
Part No: 6Q0 909 605 F
Component: 07 AIRBAG VW6 0202 0003
Coding: 12343
Shop #: WSC 00000
VCID: 3A75CD3026C08F5FC1-515A

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments Labels: 1J0-920-xx5-17.lbl
Part No: 1J0 920 905 L
Component: A4-KOMBIINSTR. VDO V04
Coding: 07232
Shop #: WSC 09225
VCID: 3061EF18F0BC450F7F-515A

Subsystem 1 - Part No: IMMO
Component: IDENTNR: VWZ7Z0Y2740629
IMMO-IDENTNR: VWZ7Z0Y2740629

1 Fault Found:
01176 - Key
07-10 - Signal too Low - Intermittent

-------------------------------------------------------------------------------
Address 19: CAN Gateway Labels: 6N0-909-901-19.clb
Part No: 6N0 909 901
Component: Gateway K<->CAN 0001
Coding: 00006
Shop #: WSC 00000
VCID: 70E12F18303C050F3F-513C

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv. Labels: 1J0-959-799.lbl
Part No: 1J0 959 799 AJ
Component: 60 Zentral-SG Komf. 0001
Coding: 04096
Shop #: WSC 00000
VCID: 060D69C022B83BBFF5-4B18

Subsystem 1 - Part No: 1J1959801C
Component: 60 Tõrsteuerger. FS0002F

Subsystem 2 - Part No: 1J1959802D
Component: 60 Tõrsteuerger. BF0002H

Subsystem 3 - Part No: 1J4959811C
Component: 60 Tõrsteuerger. HL0002H

Subsystem 4 - Part No: 1J4959812C
Component: 60 Tõrsteuerger. HR0002H

1 Fault Found:
00953 - Interior Light Time limit
25-10 - Unknown Switch Condition - Intermittent

-------------------------------------------------------------------------------
Address 56: Radio Labels: 1J0-035-18x-56.clb
Part No: 1J0 035 180 D
Component: RADIO 3CP 0002
Coding: 01401
Shop #: WSC 00000
VCID: 20411F58A05CF58FEF-4B18

No fault code found.

End-------------------------(Elapsed Time: 04:25)--------------------------



I'm now looking into checking the immobilizer coil... trying to find where its at - read the resistance across it perhaps?... check the wiring around it, grounds, etc.


Could the Comprehensive Component Monitor be failing because of these intermittent immobilizer faults?

Wanted to reach out to see if I might be on the right path, any suggestions welcome... about to go into the garage and start taking the paneling off around the ignition switch to try and find the D2 immobilizer coil... I've read through soo many forums I thought its about time I post one to request for some help and guidance - Please and Thank You.
 
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