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Thread: Octavia VRS CR FL 2010 - headlights very dim

  1. #1
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    Octavia VRS CR FL 2010 - headlights very dim

    After accident, passenger headlight unit and a headlight control unit ??? were replaced. Ever since then both headlights are very dim. They used to be much brighter before the accident. It's as if they are on low power. I have tried different halogen bulbs and also LED bulbs. The LED bulbs are slightly brighter than the halogens but they are still dim.

    It was suggested that the new control unit (I think that was what the body shop said was fitted. It seemingly had to get welded in) may be set on low power to increase bulb lifespan.

    Where would I look with VCDS to set headlight power back to full??

    Any other suggestions??

  2. #2
    Benevolent Dictator Uwe's Avatar
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    Please post an Auto-Scan so people can see how this car is equipped & configured, and what faults are present.

    -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.

  3. #3
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    Log from today.
    I already knew about the alarm siren. Suspect it needs new battery.
    I have new mirror indicators ordered to replace both sides. Passenger side not working and drivers side was flickering at MOT test.
    Tested heated mirror wiring and no power so break in wiring somewhere or maybe a loose plug??
    Headlight looks like 11.7 volts. Can this be increased??
    Any other thoughts??

    Code:
    Saturday,25,January,2020,16:44:40:62090
    VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
    VCDS Version: 19a6.2.0 (x64)
    Data version: 20190930 DS308.0
    www.Ross-Tech.com
    
    
    VIN:   License Plate: 
    
    
    Chassis Type: 1Z-SK35 (1K0)
    Scan: 01 03 08 09 15 16 17 19 25 42 44 46 52 56 62 72
    
    VIN:    Mileage: 152240km-94597miles
    
    01-Engine -- Status: OK 0000
    03-ABS Brakes -- Status: Malfunction 0010
    04-Steering Angle -- Status: OK 0000
    08-Auto HVAC -- Status: OK 0000
    09-Cent. Elect. -- Status: Malfunction 0010
    15-Airbags -- Status: OK 0000
    16-Steering wheel -- Status: OK 0000
    17-Instruments -- Status: OK 0000
    19-CAN Gateway -- Status: Malfunction 0010
    25-Immobilizer -- Status: OK 0000
    42-Door Elect, Driver -- Status: Malfunction 0010
    44-Steering Assist -- Status: OK 0000
    46-Central Conv. -- Status: OK 0000
    52-Door Elect, Pass. -- Status: Malfunction 0010
    56-Radio -- Status: OK 0000
    62-Door, Rear Left -- Status: OK 0000
    72-Door, Rear Right -- Status: OK 0000
     
    -------------------------------------------------------------------------------
    Address 01: Engine (CEG)       Labels: 03L-906-022-CBA.clb
       Part No SW: 03L 906 022 RD    HW: 03L 906 022 GA
       Component: R4 2,0L EDC G000SG  5751  
       Revision: 13H03---    Serial number:               
       Coding: 0001072
       Shop #: WSC 00642 210 45725
       VCID: 78FE6A4C0B21C18F9F-802C
    
    No fault code found.
    Readiness: 0 0 0 0 0 
    
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes (J104)       Labels:. 1K0-907-379-60EC1F.clb
       Part No SW: 1K0 907 379 AH    HW: 1K0 907 379 AH
       Component: ESP MK60EC1   H30 0107  
       Revision: 00H30001    
       Coding: 163B601C09290003681306E890220082340800
       Shop #: WSC 73430 790 00999
       VCID: 78FE6A4CCB21C18F9F-802C
    
    1 Fault Found:
    02214 - Tire Pressure Warning 
                002 - Lower Limit Exceeded - Intermittent
                 Freeze Frame:
                        Fault Status: 00100010
                        Fault Priority: 2
                        Fault Frequency: 1
                        Reset counter: 175
                        Mileage: 151405 km
                        Time Indication: 0
                        Date: 2014.04.10
                        Time: 15:29:32
    
                 Freeze Frame:
                        Count: 0
                        Count: 32768
                        Count: 4608
                        Count: 397
                        Count: 52528
                        Count: 0
                        Count: 65024
                        Count: 0
    
    
    -------------------------------------------------------------------------------
    Address 08: Auto HVAC (J255)       Labels:| 5K0-907-044.clb
       Part No SW: 3T0 907 044 AS    HW: 3T0 907 044 AS
       Component: Climatronic   H15 0401  
       Revision: 00005001    
       Coding: 0000000002
       Shop #: WSC 73430 790 00999
       ASAM Dataset: EV_Climatronic A01006
       ROD: EV_ClimaAutoBasis_SK35.rod
       VCID: 03040DA08AE79257BA-8056
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 09: Cent. Elect. (J519)       Labels:. 1K0-937-08x-09.clb
       Part No SW: 1K0 937 087 D    HW: 1K0 937 087 D
       Component: BCM PQ35  H   103 0575  
       Revision: 00103 AG    
       Coding: 48180AB8B05BB1C040080080110001E4430000AE424D8560800440040000
       Shop #: WSC 20014 576 89718
       VCID: 326A98646DDDEBDF61-8066
    
       Subsystem 1 - Part No: 1Z2 955 119 C  Labels: 1KX-955-119.CLB
       Component: Wischer 16120  22  0601 
       Coding: 00D7B7
    
       Subsystem 2 - Part No: 1Z0 951 171 
       Component: Innenraumuebe  008 5101 
    
       Subsystem 3 - Part No: 1K8 951 605 
       Component: LIN BACKUP HO  H09 9002 
    
    3 Faults Found:
    01134 - Alarm Horn (H12) 
                000 - -
                 Freeze Frame:
                        Fault Status: 01100000
                        Fault Priority: 4
                        Fault Frequency: 1
                        Reset counter: 107
                        Mileage: 138925 km
                        Time Indication: 0
                        Date: 2012.12.14
                        Time: 13:34:32
    
                 Freeze Frame:
                            Term 15 On
                        Voltage: 12.30 V
                            ON
                            ON
                            Term 50 Off
                            OFF
                            OFF
    
    01134 - Alarm Horn (H12) 
                002 - Lower Limit Exceeded
                 Freeze Frame:
                        Fault Status: 01100010
                        Fault Priority: 4
                        Fault Frequency: 254
                        Reset counter: 144
                        Mileage: 140481 km
                        Time Indication: 0
                        Date: 2013.03.19
                        Time: 07:48:26
    
                 Freeze Frame:
                            Term 15 Off
                        Voltage: 14.45 V
                            OFF
                            ON
                            Term 50 Off
                            OFF
                            OFF
    
    00979 - Lamp for Low Beam; Right (M31) 
                010 - Open or Short to Plus - Intermittent
                 Freeze Frame:
                        Fault Status: 00101010
                        Fault Priority: 1
                        Fault Frequency: 1
                        Reset counter: 193
                        Mileage: 152040 km
                        Time Indication: 0
                        Date: 2014.06.11
                        Time: 10:35:10
    
                 Freeze Frame:
                            Term 15 On
                        Voltage: 11.70 V
                            ON
                            ON
                            Term 50 Off
                            OFF
                            OFF
    
    
    -------------------------------------------------------------------------------
    Address 15: Airbags        Labels: 1K0-909-605.lbl
       Part No SW: 1K0 909 605 T    HW: 1K0 909 605 T
       Component: Q4 AIRBAG VW8   020 2300  
       Revision: 05020000    Serial number: 0038PD2HS0W%  
       Coding: 0020788
       Shop #: WSC 73430 790 00999
       VCID: 3D70BB58648324A78C-8068
    
       Subsystem 1 - Serial number: 6332MSME4C602D7CR
    
       Subsystem 2 - Serial number: 6342MSME4E634629K
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 16: Steering wheel        Labels: 1K0-953-549-MY9.lbl
       Part No SW: 1K0 953 549 CQ    HW: 1K0 953 549 CQ
       Component: J0527           053 0111  
       Coding: 0000034
       Shop #: WSC 73430 790 00999
       VCID: 03040DA042E79257BA-8056
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 17: Instruments (J285)       Labels:| 5K0-920-xxx-17.clb-SRI1
       Part No SW: 1Z0 920 943 J    HW: 1Z0 920 943 J
       Component: KOMBI         H05 0305  
       Serial number: 00000000000000
       Coding: 410B00
       Shop #: WSC 73430 031 00999
       ASAM Dataset: EV_Kombi_UDS_VDD_RM09 A04052
       ROD: EV_Kombi_UDS_VDD_RM09_004_SK34.rod
       VCID: 408EC2ACDB71494FE7-8014
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 19: CAN Gateway        Labels:. 1K0-907-530-V4.clb
       Part No SW: 1K0 907 530 AD    HW: 1K0 907 951 
       Component: J533  Gateway   H16 0233  
       Revision:   H16       Serial number: 4520K09C190630
       Coding: E9807F06000202001303
       Shop #: WSC 73430 790 00999
       VCID: 69D83F08408B680710-803C
    
    1 Fault Found:
    00470 - Company Comfort Databus in Single Wire 
                011 - Open Circuit - Intermittent
                 Freeze Frame:
                        Fault Status: 00101011
                        Fault Priority: 3
                        Fault Frequency: 9
                        Reset counter: 181
                        Mileage: 150369 km
                        Time Indication: 0
    
    
    -------------------------------------------------------------------------------
    Address 25: Immobilizer (J334)       Labels:| 5K0-920-xxx-25.clb
       Part No SW: 5K0 953 234     HW: 5K0 953 234 
       Component: IMMO          H05 0305  
       Serial number: 00000000000000
       Coding: 000000
       Shop #: WSC 00000 000 00000
       ASAM Dataset: EV_Immo_UDS_VDD_RM09 A03005
       ROD: EV_Immo_UDS_VDD_RM09.rod
       VCID: 6ADA40048D8D631F19-803E
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 42: Door Elect, Driver        Labels:. 1K0-959-701-MIN3.clb
       Part No SW: 1T0 959 701 T    HW: 1T0 959 701 T
       Component: Tuer-SG         009 2114  
       Coding: 0000756
       Shop #: WSC 73430 790 00999
       VCID: 489EDA8C3B41710F2F-801C
    
    1 Fault Found:
    00100 - Drivers Interior Locking Button (E308) 
                008 - Implausible Signal - Intermittent
    
    -------------------------------------------------------------------------------
    Address 44: Steering Assist        Labels: 1K0-909-14x-GEN3.clb
       Part No: 1K0 909 144 J
       Component: EPS_ZFLS Kl. 74     3001  
       Revision: 00H17000    
       Shop #: WSC 73430 790 00999
       VCID: 31689768A8DBD0C718-8064
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 52: Door Elect, Pass.        Labels:. 1K0-959-702-MIN3.clb
       Part No SW: 1T0 959 702 R    HW: 1T0 959 702 R
       Component: Tuer-SG         009 2114  
       Coding: 0000756
       Shop #: WSC 73430 790 00999
       VCID: 479CD9B0365F7E7726-8012
    
    2 Faults Found:
    00944 - Heated Exterior Mirror; Passenger Side (Z5) 
                012 - Electrical Fault in Circuit
    00110 - Right Mirror Turn Signal Lamp (L132) 
                012 - Electrical Fault in Circuit
    
    -------------------------------------------------------------------------------
    Address 56: Radio (J503)       Labels:. 5M0-035-1xx-56.clb
       Part No SW: 1Z0 035 156 F    HW: 1Z0 035 156 F
       Component: BOLERO        008 0053  
       Revision: 0A001001    Serial number: SKZ1Z3I8180238
       Coding: 050004000001
       Shop #: WSC 73430 790 00999
       VCID: 3560A3789CB3FCE744-8060
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 62: Door, Rear Left        Labels:. 1K0-959-703-GEN3.clb
       Part No SW: 5K0 959 703 A    HW: 5K0 959 703 A
       Component: Tuer-SG         007 2101  
       Coding: 0000144
       Shop #: WSC 73430 790 1012551
       VCID: 326A9864ADDDEBDF61-8066
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 72: Door, Rear Right        Labels:. 1K0-959-704-GEN3.clb
       Part No SW: 5K0 959 704 A    HW: 5K0 959 704 A
       Component: Tuer-SG         007 2101  
       Coding: 0000144
       Shop #: WSC 73430 790 1012551
       VCID: 33649D6052C7E2D76A-8066
    
    No fault code found.
    
    End-------------------------(Elapsed Time: 02:28)--------------------------
    Last edited by Uwe; 01-25-2020 at 03:20 PM. Reason: CODE tags

  4. #4
    Benevolent Dictator Uwe's Avatar
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    Quote Originally Posted by Fatbloke View Post
    Headlight looks like 11.7 volts. Can this be increased??
    That's not voltage at the headlight. That's system voltage at the time the fault code was set.

    I would suggest verifying the connections between the BCM and the headlights. Check for voltage drop under load. Also check for voltage drop between the ground side of the headlights and a known good ground.

    -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.

  5. Likes Jack@European_Parts liked this post
  6. #5
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    Thanks Uwe.

    How do I check the voltage to the lights? Can it be adjusted?

  7. #6
    Benevolent Dictator Uwe's Avatar
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    Quote Originally Posted by Fatbloke View Post
    How do I check the voltage to the lights?
    With a multimeter.

    -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.

  8. #7
    NostraJackAss Jack@European_Parts's Avatar
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    What Uwe aforementioned is correct.

    Additionally with DVOM in series to ground or hot you can see the draw of current measured to qualify the tracks ability to carry current and with visual load light.
    Usually the issue is a ground but sometimes the bulb or inadequate feed, so check it all by isolating each part.
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