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FAULT FILLED NIGHT! heres my findings...

Discussion in 'A3/S3 Forum (8L Chassis)' started by superkarl, Sep 3, 2010.

  1. superkarl
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    superkarl MAN OF STEEL

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    Hi all,

    I've had some warning lights for a while now, abs and esp, relating to a longitudinal sensor fault. Earlier this week i had an engine light appear so tonight i plugged her in and did an auto scan, with some depressing results.

    on the ABS and AWD modules i've had TOO MANY faults, all being intermmitant, and all being 'no communication' to ecu and sensors etc. My innitial thoughts are an electronic fault somewhere thats triggering all this, so tommorows job is to check all the electronics i can, wires, plugs, fuses. i hope that it is being caused by something simple, the hard bit is finding the fault though :( sad times.

    Here are my findings...

    VAG-COM Version: Release 409.1-S

    Chassis Type: 8L - Audi A3/S3
    Scan: 01,02,03,08,15,17,22,35,37,45,54,55,56

    -------------------------------------------------------------------------------
    Address 01: Engine
    Controller: 8N0 906 018 J
    Component: 1.8L R4/5VT 0003
    Coding: 10710
    Shop #: WSC 06435
    WAUZZZ8LZ1A021951 AUZ7Z0Y1555870
    5 Faults Found:
    17863 - Exhaust Gas Temp Sensor 1 (G235): Implausible Signal
    P1455 - 35-10 - - - Intermittent
    16395 - Bank 1: Camshaft A (Intake): Retard Setpoint not Reached (Over-Advanced)
    P0011 - 35-10 - - - Intermittent
    16712 - Knock Sensor 1 (G61): Signal too High
    P0328 - 35-10 - - - Intermittent
    16717 - Knock Sensor 2 (G66): Signal too High
    P0333 - 35-10 - - - Intermittent
    17584 - Bank1: O2S (Lambda) Correction Behind Catalyst: Control Limit Reached
    P1176 - 35-00 - -
    Readiness: 0000 0000
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes
    Controller: 8N0 907 379 E
    Component: ESP 20 CAN V005
    Coding: 18448
    Shop #: WSC 00012
    2 Faults Found:
    01324 - Control Module for All Wheel Drive (J492)
    49-00 - No Communications
    01279 - Longitudinal Acceleration Sensor (G251)
    27-10 - Implausible Signal - Intermittent
    -------------------------------------------------------------------------------
    Address 08: Auto HVAC
    Controller:  ö8L 082 004
    Coding: 00041
    Shop #: WSC 06435
    Note: Excessive Comm Errors
    -------------------------------------------------------------------------------
    Skipping Address 15-Airbags
    -------------------------------------------------------------------------------

    Address 22: AWD
    Controller: 02D 900 554 B
    Component: HALDEX LSC ECC 0006
    3 Faults Found:
    01312 - Powertrain Data Bus
    37-00 - Faulty
    01316 - ABS Control Module
    49-10 - No Communications - Intermittent
    01314 - Engine Control Module
    49-10 - No Communications - Intermittent
    -------------------------------------------------------------------------------
    Address 35: Centr. Locks
    Controller: 8D0 862 257 E
    Component: CV-Pump, Alarm, RC D17
    Coding: 15178
    Shop #: WSC 06435
    5 Faults Found:
    01367 - Central Locking Pump Run Time Exceeded (Likely Leak)
    35-00 - -
    01371 - Alarm triggered by Door Contact Switch: Driver's Side
    35-00 - -
    01374 - Alarm triggered by Terminal 15
    35-00 - -
    01370 - Alarm triggered by Interior Monitoring
    35-00 - -
    01369 - Alarm triggered by Hood Switch
    35-00 - -
    -------------------------------------------------------------------------------
    Address 45: Inter. Monitor
    Controller: 4B0 951 173
    Component: Innenraumueberw. D03
    Coding: 00001
    Shop #: WSC 00000
    1 Fault Found:
    01381 - Alarm triggered by Anti-Theft Sensor: Rear Right
    35-00 - -

    AND AFTER CLEARING THEM ALL AND SCANNING AGAIN AFTER A DRIVE......

    VAG-COM Version: Release 409.1-S

    Chassis Type: 8L - Audi A3/S3
    Scan: 01,02,03,08,15,17,22,35,37,45,54,55,56

    -------------------------------------------------------------------------------
    Address 01: Engine
    Controller: 8N0 906 018 J
    Component: 1.8L R4/5VT 0003
    Coding: 10710
    Shop #: WSC 06435
    WAUZZZ8LZ1A021951 AUZ7Z0Y1555870
    1 Fault Found:
    17861 - Exhaust Gas Temp Sensor 1 (G235): Open or Short to Plus
    P1453 - 35-00 - -
    Readiness: 0000 0101
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes
    Controller: 8N0 907 379 E
    Component: ESP 20 CAN V005
    Coding: 18448
    Shop #: WSC 00012
    2 Faults Found:
    01324 - Control Module for All Wheel Drive (J492)
    49-00 - No Communications
    01279 - Longitudinal Acceleration Sensor (G251)
    27-10 - Implausible Signal - Intermittent
    -------------------------------------------------------------------------------
    Address 08: Auto HVAC
    Controller: 8L0 820 043 H
    Component: A3 KLIMAAUTOMAT 0101
    Coding: 00041
    Shop #: WSC 06435
    No Faults Found
    or DTCs not supported by controller
    or a communication error ocurred
    -------------------------------------------------------------------------------
    Skipping Address 15-Airbags
    -------------------------------------------------------------------------------
    Address 22: AWD
    Controller: 02D 900 554 B
    Component: HALDEX LSC ECC 0006
    3 Faults Found:
    01312 - Powertrain Data Bus
    37-00 - Faulty
    01316 - ABS Control Module
    49-10 - No Communications - Intermittent
    01314 - Engine Control Module
    49-10 - No Communications - Intermittent
    -------------------------------------------------------------------------------

    If anybody has any idea or experience with any of the above errors, i would appreciate any advice!!

    thankyou

    Karl
    #1
  2. rossbrownlee
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    rossbrownlee Ross_S4

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    hard one mate. possibly thrown an earth somewhere?
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  3. evilscotsman
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    evilscotsman Space Cowboy

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    also check for a blown fuse inside the ecu compartment mate. I've had this cause multiple sensor fails together and was just a fuse. Is the ecu nice and dry? If you have a blocked plenum drain it could have gotten water in somewhere maybe, or even a damaged wire from the engine multiplug harness.
    Last edited: Sep 4, 2010
    #3
  4. Sandip
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    Sandip Active Member

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    The 8L doesn't have the same issue as the B5 with the water building up near the ECU, i would erase those faults and have another check after a week of running it.

    The main earth point on the 8L is under the battery, check for corrosion and loose dry joints, clean it up and re grease everything. Those faults seem to be individual, all different. The longitudinal sensor and door switch fault is common.

    Have you had you had you timing belt done recently?

    16395 - Bank 1: Camshaft A (Intake): Retard Setpoint not Reached (Over-Advanced)
    P0011 - 35-10 - - - Intermittent ----------------- I had this fault when my timing belt was 1 tooth out
    #4
  5. S3 Nattie
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    S3 Nattie Quattro ist für sissies

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    The 16396 fault ive been having for a while. Its signifying that there is likely a problem with your VVT not be able to advance or retard when it needs to.

    As the VVT using oil pressure to operate the first thing to look at would be its oil supply which comes via the oil pick up pipe. If that is blocked then your VVT wont get enough oil to operate correctly plus starving your head of oil too. Another thing to look at is the timing of the chain on the VVT, could already be to advance on a cam. I adjusted mine yesterday so will have to see if it comes back.

    Nathan
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  6. superkarl
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    superkarl MAN OF STEEL

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    firstly thanks for all your responses. im spending the whole day stripping and checking what i can.

    The camshaft fault im guessing was caused when i was at the ring recently and i had an oil pressure warning light, so the top probably did run dry, im led to believe this is down to oil temperature as ther is no problems with the sump or pick up, they're brand new. Since erasing this it has not returned thankfully!

    Im am currently looking for the longitudinal sensor, under the steering column i believe, would anybody be able to tell, or even better show me where it is, everything under here is clean and connected, im just unsure as to which is the sensor, its like spaghetti junction under there!

    im also going to be jacking the car up as there is some sort of sensor or solinoid clicking and buzzing away constantly, sounds as tho its around the rear diff, hopefully this will be the cause of the AWD problems.

    Once again thanks for your thoughts, i shall be checking and cleaning everything around the battery like you suggest.

    If anyone else is able to give me answers, please do! i will love you for it.

    Karl
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  7. S3 Nattie
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    S3 Nattie Quattro ist für sissies

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    Aw there you go. May have starved the head for a second when you was maybe cornering pretty hard and no oil was supplying the head and VVT for a bit. Most people who are really into track days think about installing a dry sump as the oil supply is proportional to the engine speed.

    Not familar with your other faults but someone will be along to help you.

    Nathan
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  8. superkarl
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    superkarl MAN OF STEEL

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    i certainly hope so mate. im currently on ross-tech.com and putting my error codes in and it tells me the symptoms, causes and solutions. pretty much all of them say this: Check CAN-Databus Wiring/Connectors from/to Engine Control Module. but i have no idea where the databus wiring, or the engine control module is. This is my problem, finding exactly where to look.
    #8
  9. superkarl
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    superkarl MAN OF STEEL

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    i've located the engine control module, just under the brake servo, going to be checking this today, takes alot to get to it.

    can anyone tell me where i can find:

    a. the control module for the four wheel drive
    b. the powertrain databus
    c. and the abs control module

    ???

    cheers
    #9

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