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A Few faults

Discussion in 'A4/A4 cabriolet/S4 forum(B6 chassis)' started by defsix, Mar 12, 2010.

  1. defsix
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    defsix Member

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    Just looking for a bit of help on the faults that i've logged, here's the logged faults;

    Address 08: Auto HVAC Labels: 8E0-820-043.lbl
    Part No: 8E0 820 043 AC
    Component: A4 Klimaautomat 1323
    Coding: 00000
    Shop #: WSC 63251

    2 Faults Found:
    00819 - High Pressure Sensor (G65)
    30-00 - Open or Short to Plus
    01336 - Data Bus for Comfort System
    80-00 - Single-Wire Operation

    Address 17: Instruments Labels: 8E0-920-9xx-8E2.lbl
    Part No: 8E0 920 950 M
    Component: KOMBI+WEGFAHRS. RB4 D42
    Coding: 00401
    Shop #: WSC 00183
    WAUZZZ8E74A177160 AUZ6Z0C0428500

    1 Fault Found:
    01336 - Data Bus for Comfort System
    80-00 - Single-Wire Operation
    Address 46: Central Conv. Labels: 8E0-959-433-MIN.lbl
    Part No: 8E0 959 433 BD
    Component: Komfortgerát TBF 1511
    Coding: 07163
    Shop #: WSC 63251

    Part No: 8E2959802B
    Component: Tõrsteuer.FS BRM 0003

    Part No: 8E2959801B
    Component: Tõrsteuer.BF BRM 0003

    4 Faults Found:
    01336 - Data Bus for Comfort System
    80-00 - Single-Wire Operation
    01370 - Alarm triggered by Interior Monitoring
    35-00 - -
    01331 - Door Control Module; Driver Side (J386)
    80-00 - Single-Wire Operation
    01332 - Door Control Module; Passenger Side (J387)
    80-00 - Single-Wire Operation

    Address 56: Radio Labels: 8E0-035-1xx-56.lbl
    Part No: 8E0 035 195 M
    Component: symphony II NP2 0400
    Coding: 01201
    Shop #: WSC 66048

    2 Faults Found:
    01317 - Control Module in Instrument Cluster (J285)
    49-00 - No Communications
    00466 - Control Module for Steering Column Electronics (J527)
    49-00 - No Communications

    A few faults i have noticed are A/C stuck on ECo ( needs gassing i think ) OneClick up/down didn't always work ( is working correctly now) . My ipod connected to my denison300 has decided to start skipping when driving on rough roads.

    Any help is much appreciated .
    Last edited: Mar 12, 2010
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  2. pjmspeedy
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    pjmspeedy Dude, what's mine say ?

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    The best thing to do is check the codes on the RossTech wiki site for possible solutions.

    Good luck and let us know how you get on. Interesting the coding for your aircon
    unit is all 00000
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  3. Woorlord
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    Woorlord shifting to Hyperspace... .

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    Clear all DTC's and see what pop's again - saves on a wild goose chase and narrows faults down to what's happening now!

    Some of these errors look like items have been removed and, car ignition was switched on, hence some of the" no" communication errors.
    Coding for A/C set to 00000 is fine.
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  4. quattrojames
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    quattrojames Moderator Staff Member Moderator

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    The fault in the pressure sensor on the condenser would explain why the econ light is on. This can be changed with no loss of refrigerant so I've read on here.
    #4
  5. defsix
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    defsix Member

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    So I checked through the Ross Wiki, I am a little confused about the air con problem, is it the switch ( is this behind the nearside headlight ? ) or is it low pressure ( needs gassing ) . As for the single wire operation , can anyone explain this to me in further detail, is it a problem or bad coding of some part ( I am running Canadian cluster for DRL's ) . And to the last problems.. the CCM, this appears to be working now , will log faults next week ( the last log has been from the last month ) , i will lift the carpets and check the ccm for corrosion as i think this may be the problem... intermittent connection.
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  6. Woorlord
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    Woorlord shifting to Hyperspace... .

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    Some A/C info here on your "G65" error.....>>Link Here<<
    Last edited: Mar 14, 2010
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  7. defsix
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    defsix Member

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    Thanks , that was the post i was looking for, however mine has short to plus, this is short to ground , does it matter ?
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  8. mattyboyc
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    mattyboyc Active Member

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    Gaurnteed once you change the sensor all will be ok, £38+vat from tps, simply unscrew with a 17mm spanner,screw new one in, job done all this can be done with no loss of gas, i did mine last week.
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  9. Woorlord
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    Woorlord shifting to Hyperspace... .

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    Now you've made me get the circuits out to check the sensor connections!

    G65 sensor has three wires,
    Pin 1: 0v (Chassis) [brown/white]
    Pin 2: Signal to A/C Control Head unit [brown/blue]
    Pin 3: +12v [grey/red]

    As I recall from the workshop manuals, the Pin 2 signal back to the A/C control unit is a pulse width modulated (digital) signal depending on the pressure sensed.
    So the detected fault states can be continuously grounded to 0v (short to ground), or continuously tied up to 12v (Short to plus).
    Any of these fault states could be a duff sensor.
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