2006 Golf (a/k/a Rabbit) Steering Assist question

   #1  

DanVermont

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C?ID=418840
The steering assist fails intermittently. Steering becomes heavy.
Car has over 120,000 miles. Battery is 2017 but car has undergone recent, professional(?) repairs under the hood.
Other discussions on forum suggest this may be a battery issue.
I suspect a bad connection ("open circuit"). Where should I look for the open circuit?
PS. Local garage that did all the work wants to replace the steering rack.
History:
  1. Transmission locked up.
  2. Local garage replaced transmission with used. Drives okay.
  3. Within a week, steering assist failed.
  4. Disconnected battery 15 min for "reset". Steering assist was restored.
  5. Within a week, alternator failed.
  6. Local garage replaced alternator with new.
  7. Within a week, steering assist failed (again). Could not reset.
  8. Bought VCDS for Auto Scan. See below. There are other DTCs.
  9. Code:
    Address 44: Steering Assist        Labels: 1Kx-909-144-G2V2.clb
       Part No: 1K1 909 144 K
       Component: EPS_ZFLS Kl.5   D06 1701 
       Shop #: WSC 00000 000 00000
       VCID: 33331B75373926339F1-8066
    
    1 Fault Found:
    00569 - Steering Motor Current
                011 - Open Circuit
                 Freeze Frame:
                        Mileage: 7920 km
                        Temperature: 42.0°C
  10. Used VCDS to clear all DTCs. Steering assist was restored.
  11. Waiting for next failure ........
 
   #2  

DanVermont

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C?ID=418840
I think there must be a grounding strap issue.
Here is the complete scan.
Code:
Tuesday,29,September,2020,12:27:22:50410
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x86
VCDS Version: 20.4.2.0  HEX-V2 CB: 0.4513.4
Data version: 20200730 DS317.0
www.Ross-Tech.com


VIN: WVWCS71K26W184542   License Plate:


Chassis Type: 1K (1K0)
Scan: 01 03 08 09 15 16 17 19 25 42 44 46 52 56 62 72

VIN: WVWCS71K26W184542   Mileage: 263420km-163681miles

00-Steering Angle Sensor -- Status: OK 0000
01-Engine -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: Malfunction 0010
15-Airbags -- Status: Malfunction 0010
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
25-Immobilizer -- Status: Malfunction 0010
42-Door Elect, Driver -- Status: Malfunction 0010
44-Steering Assist -- Status: Malfunction 0010
46-Central Conv. -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
56-Radio -- Status: OK 0000
62-Door, Rear Left -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine        Labels: 06A-906-032-BGP.lbl
   Part No SW: 07K 906 032 AP    HW: Hardware No
   Component: 2.5l R5/4V      G   6745 
   Revision: --------    Serial number: VWZ7Z0F3684870
   Coding: 0000001
   Shop #: WSC 01279 785 00200
   VCID: 77ABEF6563C10A13639-8022

No fault code found.
Readiness: 0000 0000

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 1K0-907-379-MK60-F.lbl
   Part No SW: 1K0 907 379 AA    HW: 1K0 907 379 AA
   Component: ESP FRONT MK60      0102 
   Revision: 00H13001   
   Coding: 0021122
   Shop #: WSC 01279 785 00200
   VCID: 71BFD17D0DA55423ADD-8024

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: 1K0-820-047.lbl
   Part No: 1K0 820 047 EC
   Component: Climatic PQ35   090 0505 
   Shop #: WSC 00000 000 00000
   VCID: 698FB91D2575ACE3E5D-803C

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect.        Labels:. 3C0-937-049-23-M.lbl
   Part No SW: 3C0 937 049 P    HW: 3C0 937 049 P
   Component: Bordnetz-SG     H46 1501 
   Revision: 00H46000    Serial number: 00000005619264
   Coding: 108D8F214004150000140000001400000008730B5C0000
   Shop #: WSC 01017 444 53928
   VCID: 36352261244B331BB8F-8062

   Subsystem 1 - Part No: 1K1 955 119 C  Labels: 1KX-955-119.CLB
   Component: Wischer VW350  013  0402 
   Coding: 00063445
   Shop #: WSC 01017 

2 Faults Found:
01505 - Bulb for Blinkers; Rear Right (M8)
            012 - Electrical Fault in Circuit
             Freeze Frame:
                    Fault Status: 01101100
                    Fault Priority: 2
                    Fault Frequency: 254
                    Reset counter: 104
                    Mileage: 0 km
                    Time Indication: 0

             Freeze Frame:
                        OFF
                    Voltage: 7.90 V
                        OFF
                        ON
                        OFF
                        OFF
                        OFF

00834 - Signal for Activation of Heated Rear Window
            009 - Open or Short to Ground - Intermittent
             Freeze Frame:
                    Fault Status: 00101001
                    Fault Priority: 5
                    Fault Frequency: 2
                    Reset counter: 144
                    Mileage: 261996 km
                    Time Indication: 0

             Freeze Frame:
                        ON
                    Voltage: 13.75 V
                        ON
                        ON
                        OFF
                        OFF
                        OFF


-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 1K0-909-605.lbl
   Part No SW: 1K0 909 605 P    HW: 1K0 909 605 P
   Component: 5L AIRBAG VW8R  032 7900 
   Revision: 03032000    Serial number: 0038FD05MTKT 
   Coding: 0013644
   Shop #: WSC 01269 785 00200
   VCID: 392F295D1555DC6355D-806C

   Subsystem 1 - Part No: 1K0 959 339 D
   Component: BF-Gewichtsens. 006 0006

   Subsystem 2 - Serial number: 6332MSME104F3B70C

   Subsystem 3 - Serial number: 6342MSME104F217AC

   Subsystem 4 - Serial number: 6352QSME0C592349L

   Subsystem 5 - Serial number: 6362QSME0C363D1FV

   Subsystem 6 - Serial number: 63727SME0A025D3A3

   Subsystem 7 - Serial number: 63827SME0965542E6

2 Faults Found:
02513 - Belt Force Sensor for Seat Occupied Recognition (G453)
            003 - Mechanical Failure - Intermittent
00532 - Supply Voltage B+
            002 - Lower Limit Exceeded - Intermittent

-------------------------------------------------------------------------------
Address 16: Steering wheel        Labels: 1K0-953-549-MY8.lbl
   Part No SW: 1K0 953 549 AH    HW: 1K0 953 549 AH
   Component: J0527           034 0070 
   Coding: 0000022
   Shop #: WSC 01279 785 00200
   VCID: 78A9EC596EDF056B6A3-802C

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 1K0-920-xxx-17.lbl
   Part No: 1K0 920 953 C
   Component: KOMBIINSTRUMENT VDD 4312 
   Coding: 0007203
   Shop #: WSC 01505 444 54606
   VCID: 2B030315EF097EF3D71-807E

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway        Labels:. 1K0-907-530-V1.clb
   Part No SW: 1K0 907 530 F    HW: 1K0 907 951
   Component: Gateway         H10 0120 
   Revision:   H10       Serial number: 280010641005A1
   Coding: 3D3F0340070002
   Shop #: WSC 01279 785 00200
   VCID: 2A0D0611E0F367FB2C7-807E

No fault code found.

-------------------------------------------------------------------------------
Address 25: Immobilizer        Labels: 1K0-920-xxx-25.clb
   Part No: 1K0 920 953 C
   Component: IMMO            VDD 4312 
   Shop #: WSC 00000 000 00000
   VCID: 2B030315EF097EF3D71-807E

1 Fault Found:
01176 - Key
            008 - Implausible Signal - Intermittent

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver        Labels: 1K0-959-701-MIN2.lbl
   Part No: 1K0 959 701 K
   Component: Tuer-SG         024 2373 
   Coding: 0001205
   Shop #: WSC 01279 785 00200
   VCID: 36352261244B331BB8F-8062

2 Faults Found:
00912 - Window Regulator Switch; Front Left (E40)
            008 - Implausible Signal - Intermittent
00928 - Locking Module for Central Locking; Front Driver Side (F220)
            008 - Implausible Signal

-------------------------------------------------------------------------------
Address 44: Steering Assist        Labels: 1Kx-909-144-G2V2.clb
   Part No: 1K1 909 144 K
   Component: EPS_ZFLS Kl.5   D06 1701 
   Shop #: WSC 00000 000 00000
   VCID: 33331B75373926339F1-8066

1 Fault Found:
00569 - Steering Motor Current
            011 - Open Circuit
             Freeze Frame:
                    Mileage: 7920 km
                    Temperature: 42.0°C


-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels:. 1K0-959-433-MIN.clb
   Part No: 1K0 959 433 AF
   Component:    KSG              0401 
   Coding: 13C803281B09058F880F048050CC
   Shop #: WSC 01505 444 94845
   VCID: 74B1D86972B7610B46B-8020

   Subsystem 1 - Component:   Sounder n.mounted     

   Subsystem 2 - Component:       NGS n.mounted     

   Subsystem 3 - Component:      IRUE n.mounted     

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass.        Labels: 1K0-959-702-MIN2.lbl
   Part No: 1K0 959 702 K
   Component: Tuer-SG         024 2373 
   Coding: 0001205
   Shop #: WSC 01279 785 00200
   VCID: 372B2F652341CA13A39-8062

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio        Labels: 1K0-035-1xx-56.lbl
   Part No SW: 1K0 035 180 D    HW: 1K0 035 180 D
   Component: Radio PM6       016 0017 
   Revision: 00016000    Serial number: VWZ5Z7F2067439
   Coding: 0040400
   Shop #: WSC 01279 785 00200
   VCID: 211FE13D9DC5A4A37DD-8074

No fault code found.

-------------------------------------------------------------------------------
Address 62: Door, Rear Left        Labels: 1K0-959-703-GEN2.lbl
   Part No: 1K0 959 703 F
   Component: Tuer-SG         021 2438 
   Coding: 0000144
   Shop #: WSC 01279 785 00200
   VCID: 33331B75373926339F1-8066

No fault code found.

-------------------------------------------------------------------------------
Address 72: Door, Rear Right        Labels: 1K0-959-704-GEN2.lbl
   Part No: 1K0 959 704 F
   Component: Tuer-SG         021 2438 
   Coding: 0000144
   Shop #: WSC 01279 785 00200
   VCID: 343118693237210B86B-8060

No fault code found.

End----------(Elapsed Time: 01:02, VBatt start/end: 13.8V/13.7V)-----------
 
   #3  

DanVermont

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Geoffzie posted to this list back in July 2018 that the Steering Rack is grounded to the Transmission in his 1K "Passetta" (2.5L engine). Geoffzie cleaned this ground and the Steering Assist problem was fixed. I think this is my starting point. Still to be done.
 
   #4  

Uwe

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It certainly wouldn't hurt to check all wiring/verify and connections to the rack.

-Uwe-
 
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