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Thread: B7 Instrument Cluster - Backlit Scales not working with Headlights OFF

  1. #1
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    B7 Instrument Cluster - Backlit Scales not working with Headlights OFF

    Battery went dead on my B7 RS4 since I haven't driven it in a couple months. After getting the battery charged up and the car going again my cluster dash lights (scales) are not showing up unless it's sunny outside. The first day it was overcast and I only had the needles lit up, which was different for me.

    I have never had this issue in the past. My dash lights are always on and I never run with the headlight switch in the "Auto" position, it is always in the "OFF" position. When I open the door all the lights come on in the cluster (Scales & Needles) but after I shut the door they fade back to just the needles lit up, which I think is just the overheard lights affecting the sensor. If I shine a light into the light sensor on the cluster then the scales light up.

    Of course when I turn on the headlights or parking lights the scales do light up but like I said I never had this issue in the past. I could be sitting in a parking lot at night with the engine running, no lights on and all my dash lights were on (Scales & Needles). It is awkward to start the car at night and only have the needles lit up.

    I double checked with Vag-Com and my code was already set to 31300

    17-Instruments:
    Mode 0: Nothing lit until ext. light on
    Mode 1: Pointers lit all the time
    Mode 2: Scales lit all the time
    Mode 3: Pointers and Scales lit all the time

    Changing the first number had the desired effect for 0,1,2 but when I switched back to 31300 I still only see the needles light up. It seems as though adding the "3" in the front doesn't have any effect at all. Even though my car was already set to "3" it now all of the sudden after the battery going dead, do I have this issue.

    Can't figure out WTF is going on here since I have never had an issue with the cluster before now??? Do I have any issue with the cluster or maybe the headlight switch is messed up. Everything else seems to function normally, parking lights, headlights, front fog and rear fog.

    Thanks,

    Bimmerod

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    Hi Bimmerod. Thanks for your post but for us to provide ideas and help, we need a autoscan from the car. Can you post one up please?
    How to post an Auto-Scan


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  4. #3
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    Auto-Scan

    Quote Originally Posted by Bruce View Post
    Hi Bimmerod. Thanks for your post but for us to provide ideas and help, we need a autoscan from the car. Can you post one up please?
    How to post an Auto-Scan

    Here you go.....

    Code:
    Chassis Type: 8E (8E - Audi A4/S4/RS4 B6/B7 (2001 > 2008))
    Scan: 01 02 03 08 09 0F 11 15 16 17 18 25 36 37 45 46 55 56 57 65
              67 69 75 76 77
     
    VIN: WUARU98E37N9xxxxx   Mileage: 57630km-35809miles
    -------------------------------------------------------------------------------
    Address 01: Engine        Labels:. 079-910-560-BNS1.lbl
       Part No SW: 8E1 910 560 A    HW: 8E1 907 560 
       Component: 4.2L V8/4V FSI     0040  
       Revision: 57H13---    Serial number: XXXXXXXXXXXXXX
       Coding: 01040009180F0160
       Shop #: WSC 22164 444 83638
       VCID: 244759DBE723166FE3-8070
    
    2 Faults Found:
    005634 - Power Supply Terminal 30 
                   P1602 - 002 - Voltage too Low - Intermittent
                 Freeze Frame:
                        Fault Status: 00100010
                        Fault Priority: 0
                        Fault Frequency: 1
                        Reset counter: 255
                        Mileage: 0 km
                        Time Indication: 0
    
                 Freeze Frame:
                        RPM: 0 /min
                        Load: 0.0 %
                        Speed: 0.0 km/h
                        Temperature: -40.0C
                        Temperature: -40.0C
                        Absolute Pres.: 0.0 mbar
                        Voltage: 0.000 V
    
    006435 - Please Check DTC Memory of ECU Number 2 
                   P1923 - 008 - 
                 Freeze Frame:
                        Fault Status: 01101000
                        Fault Priority: 0
                        Fault Frequency: 1
                        Reset counter: 255
                        Mileage: 57634 km
                        Time Indication: 0
    
                 Freeze Frame:
                        RPM: 0 /min
                        Load: 0.0 %
                        Speed: 0.0 km/h
                        Temperature: 22.0C
                        Temperature: 21.0C
                        Absolute Pres.: 990.0 mbar
                        Voltage: 11.938 V
    
    Readiness: 0000 0000
    
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes        Labels: 8E0-910-517.clb
       Part No SW: 8E0 910 517 G    HW: 8E0 614 517 BD
       Component: ESP8 quattro    H06 0150  
       Revision: 00000000    Serial number: 00000000000000
       Coding: 0004533
       Shop #: WSC 06335 000 00000
       VCID: 2B55B2E78AFDD91722-807E
    
    1 Fault Found:
    01826 - Sensor for Steering Angle (G85); Supply Voltage Terminal 30 
                000 - -
                 Freeze Frame:
                        Fault Status: 01100000
                        Fault Priority: 3
                        Fault Frequency: 6
                        Reset counter: 40
                        Time Indication: 0
    
                 Freeze Frame:
                        Hex Value: 0x0000
                        Hex Value: 0x4222
                        Hex Value: 0x0024
                        Hex Value: 0x018A
                        Hex Value: 0x0001
    
    
    -------------------------------------------------------------------------------
    Address 08: Auto HVAC        Labels: 8E0-820-043.lbl
       Part No: 8E0 820 043 BM
       Component:   A4 Klimaautomat   2833  
       Coding: 00000
       Shop #: WSC 00000  
       VCID: 6DD17CFF276917277C-5104
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 09: Cent. Elect.        Labels: 8E0-907-279-8EC.lbl
       Part No: 8E0 907 279 N
       Component: int. Lastmodul  ECE 0907  
       Coding: 01031
       Shop #: WSC 00000  
       VCID: 3D718CBF378947A78C-4AD0
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 0F: Digital Radio        Labels: 8E0-035-593-SIR.lbl
       Part No SW: 8E0 035 593 F    HW:             
       Component: SDAR SIRIUS          
       Revision:             Serial number: AUZ4Z7M0622032
       Shop #: WSC 00000 000 00000
       VCID: 2C57B1FB8CF3DE2F2B-515C
    
    1 Fault Found:
    02635 - Tuner Not Enabled/Activated 
                000 - -
    
    -------------------------------------------------------------------------------
    Address 11: Engine II        Labels:. 079-910-560-BNS2.lbl
       Part No SW: 8E1 910 560 A    HW: 8E1 907 560 
       Component: 4.2L V8/4V FSI     0040  
       Revision: 57H13---    Serial number: XXXXXXXXXXXXXX
       Coding: 01040009180F0160
       Shop #: WSC 22164 444 83638
       VCID: 244759DBE723166FE3-8070
    
    1 Fault Found:
    005634 - Power Supply Terminal 30 
                   P1602 - 002 - Voltage too Low - Intermittent
                 Freeze Frame:
                        Fault Status: 00100010
                        Fault Priority: 0
                        Fault Frequency: 1
                        Reset counter: 255
                        Mileage: 0 km
                        Time Indication: 0
    
                 Freeze Frame:
                        RPM: 0 /min
                        Load: 0.0 %
                        Speed: 0.0 km/h
                        Temperature: -40.0C
                        Temperature: -40.0C
                        Absolute Pres.: 0.0 mbar
                        Voltage: 0.000 V
    
    
    -------------------------------------------------------------------------------
    Address 15: Airbags        Labels: 8E0-959-655-94.lbl
       Part No SW: 8E0 959 655 H    HW: 8E0 959 655 H
       Component:    Airbag 9.41  H12 3840  
       Revision: 91H12384    Serial number: 0036N0G0D3L%  
       Coding: 0432707
       Shop #: WSC 06335 000 00000
       VCID: 3C7781BB7F934EAFBB-8068
    
       Subsystem 1 - Part No: 8E0 910 339 B
       Component: BF-Gewichtsens. 002 0070
    
       Subsystem 2 - Serial number: 3ASR4         
    
       Subsystem 3 - Serial number: 0001.01.00000020000000000063
    
       Subsystem 4 - Serial number: 0000006332DRB403DC109BW63
    
       Subsystem 5 - Serial number: C109BW6342DRB403CA512FW63
    
       Subsystem 6 - Serial number: A512FW6352ARB401B071FFW63
    
       Subsystem 7 - Serial number: 071FFW6362ARB401B0770BK63
    
       Subsystem 8 - Serial number: 0770BK63729RB401AECF6FD63
    
       Subsystem 9 - Serial number: ECF6FD63829RB401AECF496
    
       Subsystem 10 - Serial number: ECF496
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 16: Steering wheel        Labels: 8E0-953-549-T.lbl
       Part No: 8E0 953 549 T
       Component: Lenksulenmodul     0301  
       Coding: 04441
       Shop #: WSC 06335  
       VCID: 4487F95B5463366FC3-4AE8
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 17: Instruments        Labels: 8E0-920-9xx-8EC.lbl
       Part No SW: 8E0 920 981 S    HW: 8E0 920 981 S
       Component: KOMBI+WFS 4     H14 0050  
       Revision: 0050        Serial number: 00000000000000
       Coding: 0023001
       Shop #: WSC 22164 444 83638
       VCID: 3D718CBF678947A78C-5122
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 25: Immobilizer        Labels: 8E0-920-9xx-8EC.lbl
       Part No SW: 8E0 920 981 S    HW: 8E0 920 981 S
       Component: KOMBI+WFS 4     H14 0050  
       Revision: 0050        Serial number: 00000000000000
       Coding: 0023001
       Shop #: WSC 22164 444 83638
       VCID: 3D718CBF678947A78C-5122
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 36: Seat Mem. Drvr        Labels: 8E0-959-760.lbl
       Part No: 8E0 959 760 
       Component: Sitzmemory R2 F     0305  
       Coding: 00002
       Shop #: WSC 00000  
       VCID: 71E9608F3B51F3C758-4AE8
    
    1 Fault Found:
    00668 - Supply Voltage Terminal 30 
                07-10 - Signal too Low - Intermittent
    
    -------------------------------------------------------------------------------
    Address 37: Navigation        Labels: 8E0-035-192-RNSE.clb
       Part No SW: 8E0 035 192 J    HW: 8E0 035 192 J
       Component: RNS-E US3       H72 0200  
       Revision:      03S    Serial number: AUZBZ7F2486906
       Coding: 0309637
       Shop #: WSC 22164 444 83638
       VCID: 2B55B2E789FDD91722-5140
    
    1 Fault Found:
    00446 - Function Limitation due to Under-Voltage 
                002 - Lower Limit Exceeded - Intermittent
                 Freeze Frame:
                        Fault Status: 00100010
                        Fault Priority: 7
                        Fault Frequency: 1
                        Reset counter: 91
                        Time Indication: 0
                        Date: 2005.08.26
                        Time: 00:00:30
    
                 Freeze Frame:
                        Voltage: 10.60 V
                        Mileage: 655350 km
                        Count: 2808
                        Clock: 21:46
    
    
    -------------------------------------------------------------------------------
    Address 46: Central Conv.        Labels:. 8E0-959-433-MAX.clb
       Part No: 8E0 959 433 CG
       Component: Komfortgert T7B    4135  
       Coding: 11852
       Shop #: WSC 06335  
       VCID: 78FF5DAB582BA28F9F-4AE8
    
       Subsystem 1 - Part No: 8E1959801G
       Component: Trsteuer.FS BRM 0706  
    
       Subsystem 2 - Part No: 8E1959802G
       Component: Trsteuer.BF BRM 0706  
    
       Subsystem 3 - Part No: 8E0959801E
       Component: Trsteuer.HL BRM 0606  
    
       Subsystem 4 - Part No: 8E0959802E
       Component: Trsteuer.HR BRM 0606  
    
    1 Fault Found:
    01330 - Central Control Module for Central Convenience (J393) 
                53-10 - Supply Voltage Too Low - Intermittent
    
    -------------------------------------------------------------------------------
    Address 55: Headlight Range        Labels: 4F0-910-357.lbl
       Part No SW: 4F0 910 357 F    HW: 4F0 907 357 F
       Component: AFS 1           H01 0020  
       Revision: 00000001    Serial number:               
       Coding: 0000019
       Shop #: WSC 06335 000 00000
       VCID: 295948EF8001CB07D0-807C
    
       Subsystem 1 - Part No: 8E0 941 329 A
       Component: AFS-Modul links H03 0020
    
       Subsystem 2 - Part No: 8E0 941 329 A
       Component: AFS-Modul rechtsH03 0020
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 56: Radio        Labels: 8E0-035-192-RNSE.clb
       Part No SW: 8E0 035 192 J    HW: 8E0 035 192 J
       Component: RNS-E US3       H72 0200  
       Revision:      03S    Serial number: AUZBZ7F2486906
       Coding: 0309637
       Shop #: WSC 22164 444 83638
       VCID: 2B55B2E789FDD91722-515C
    
    1 Fault Found:
    00446 - Function Limitation due to Under-Voltage 
                002 - Lower Limit Exceeded - Intermittent
                 Freeze Frame:
                        Fault Status: 00100010
                        Fault Priority: 7
                        Fault Frequency: 1
                        Reset counter: 91
                        Time Indication: 0
                        Date: 2005.08.26
                        Time: 00:00:30
    
                 Freeze Frame:
                        Voltage: 10.60 V
                        Mileage: 655350 km
                        Count: 2808
                        Clock: 21:46
    
    
    -------------------------------------------------------------------------------
    Address 65: Tire Pressure        Labels: 8E0-907-273.lbl
       Part No SW: 8E0 907 273 A    HW: 8E0 907 273 A
       Component: Reifendruck 3   H04 0130  
       Coding: 0062523
       Shop #: WSC 02197 785 00200
       VCID: 2A5BB7E38607C01FD9-5104
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 76: Park Assist        Labels: 8E0-919-283-8EC.lbl
       Part No SW: 8E0 919 283 D    HW: 8E0 919 283 D
       Component: Parkhilfe 4-Kan H06 0010  
       Revision: 00H06000    Serial number: 00067802020626
       Coding: 0000304
       Shop #: WSC 06335 000 00000
       VCID: 3169A08FABD1B3C718-5122
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 77: Telephone        Labels: 8P0-862-335.lbl
       Part No SW: 8P0 862 335 J    HW: 8P0 862 335 J
       Component: FSE_255x BT     H26 0290  
       Revision: 00000000    Serial number: 00000005010392
       Coding: 0011877
       Shop #: WSC 06335 000 00000
       VCID: 3D718CBF678947A78C-5122
    
    No fault code found.
    
    End-------------------------(Elapsed Time: 05:34)--------------------------
    Bimmerod

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  6. #4
    Verified VCDS User PetrolDave's Avatar
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    Lots of low voltage errors on many modules, and some very strange subsystem part numbers under #15 Airbags?

    First thing is to clear all the DTCs and see which come back to get rid of the historical DTCs caused by the low battery - you never know that may fix some of the problems?

    BTW great choice of a B7 RS4 - I owned one for 10 years until retirement forced me to downsize

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    Quote Originally Posted by PetrolDave View Post
    Lots of low voltage errors on many modules, and some very strange subsystem part numbers under #15 Airbags?

    First thing is to clear all the DTCs and see which come back to get rid of the historical DTCs caused by the low battery - you never know that may fix some of the problems?

    BTW great choice of a B7 RS4 - I owned one for 10 years until retirement forced me to downsize
    What I am saying is that my cluster was never like that before the dead battery/jump start. For some reason the cluster is not accepting the coding for the third option which would turn the Scales & Needles on with the ignition on.

    I have tried to unhook the battery and reset everything but it is still not accepting the "3" coding to the cluster. All of the other ones make the desired changes so I don't know??? I have even driven it around for a few hours to make sure it was fully charged and all modules were reset after the Auto-Scan.



    Doesn't make any sense ???

    Bimmerod

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    NostraJackAss Jack@European_Parts's Avatar
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    Did you save old auto-scan with configurations if so review them and why would you let an rs4 battery go flat or jump start it?
    European Parts Emporium/Performance / Immobilizer Solutions EPE
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    Above Magic! No Written record, AUTO-SCAN or Appointment = NO HELP!
    www.FixMyEuro.com <<<<<CLICK HERE! or vwemporium@aol.com ( JPPSG & Unverified members need not PM me & Please don't email or call facility for free tech support...use the forum )
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    Verified VCDS User PetrolDave's Avatar
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    Quote Originally Posted by Bimmerod View Post
    For some reason the cluster is not accepting the coding for the third option which would turn the Scales & Needles on with the ignition on.
    In VCDS go to 'Options', 'User Interface and Identification' what values do you have in the Code(WSC), VZ/Importer and Equipment Number fields?

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  12. #8
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    Quote Originally Posted by Jack@European_Parts View Post
    Did you save old auto-scan with configurations if so review them and why would you let an rs4 battery go flat or jump start it?
    I have an old auto-scan, not sure what you mean "with configurations" though ???

    Obviously life got in the way of making sure my battery did not die, it wasn't intentional. Car is covered in the garage and either I periodically drive it or hook it up to the trickle charger. Seems as though neither one of those happened before the juice ran out


    Quote Originally Posted by PetrolDave View Post
    In VCDS go to 'Options', 'User Interface and Identification' what values do you have in the Code(WSC), VZ/Importer and Equipment Number fields?
    Here is screeen shots from those screens:





    Not sure if they are all supposed to be Zeros ???

    Let me know,

    Bimmerod

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    Quote Originally Posted by Bimmerod View Post
    Not sure if they are all supposed to be Zeros ???
    Yes, that's their default condition. When they're all zeros, VCDS tries to operate as stealthily as possible, but this is not always compatible with some changes.

    Try this:
    * Set WSC to your ZIP code (or '0' followed by the last four digits of your ZIP code if it's over 65535)
    * Set Importer to 444 (that's USA).
    * Set Equipment number to the '0' followed by the last four digits of your interface serial number.
    * Click [Save]
    * Exit VCDS and then re-start it.

    -Uwe-
    The engineering problems are likely insurmountable. It would be like proposing to land a rocket booster section on a barge floating in the middle of the ocean.

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  15. #10
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    Quote Originally Posted by Uwe View Post
    Yes, that's their default condition. When they're all zeros, VCDS tries to operate as stealthily as possible, but this is not always compatible with some changes.

    Try this:
    * Set WSC to your ZIP code (or '0' followed by the last four digits of your ZIP code if it's over 65535)
    * Set Importer to 444 (that's USA).
    * Set Equipment number to the '0' followed by the last four digits of your interface serial number.
    * Click [Save]
    * Exit VCDS and then re-start it.

    -Uwe-
    Updated those fields with the information you gave. Now those fields are greyed out and not changeable anymore. Not sure if I need to change them back to 00000 ???

    From Ross-Tech:
    https://www.ross-tech.com/vcds/tour/option_screen.php
    Note: If you are an individual user or independent mechanic, just leave the number set to "00000".

    Restarted VCDS and the attempted to recode channel 19 with the "3" option without success. It is still not changing both scales and needles, it only behaves like option "1" where just needles are lit with Ignition ON. Option "2" turns on scales without Needles. It's just option "3" that only changes it back to Needles only, no Scales come on.

    The ambient light sensor does work but I prefer to have it back to how it has been for the past 13 years, Scales & Needles ON with Ignition on all the time.

    Doesn't make any sense ???

    Bimmerod

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