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Battery drainage

Bigster
in Skoda Octavia Mk2 (2004 - 2013)

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  • Author
On 09/12/2022 at 10:26, varooom said:

The fault in your new Gateway is stored because on it's list you don't have these selected...

56-Radio -- Status: Not registered 0011

77-Telephone -- Status: Not registered 0011

 

But the new gateway knows they are there!

If you tick the two choices, then the gateway fault can go away, in theory, and also hopefully they can RESPOND back to the gateway they are ready for sleep, this allows the gateway to put the CANbus into sleep mode... saving power!

 

It doesn't matter that the car will complain that there is a fault in the Telephone, that can be fixed at a later date or never depending on how you use the car.

 

 

tl;dr Tick 56 & 77 in new gateway, store and save.  Then see if gateway fault is clear.

 

Hi, 

 

Just did the tick on telephone and radio and like you said the CAN Gateway error disappeared.

This is the status of the thing:

 

01-Engine -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
04-Steering Angle -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: OK 0000
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: Malfunction 0010
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
25-Immobilizer -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
56-Radio -- Status: Malfunction 0010
62-Door, Rear Left -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
76-Park Assist -- Status: OK 0000
77-Telephone -- Status: Malfunction 0010

 

The Malfuntions: 

-------------------------------------------------------------------------------
Address 16: Steering wheel        Labels: 1K0-953-549-MY8.lbl
   Part No SW: 1K0 953 549 G    HW: 1K0 953 549 G
   Component: Lenks‰ulenmodul 021 0050  
   Coding: 0002042
   Shop #: WSC 73430 790 00000
   VCID: 3663C05341B2A6AE7EF-8063

   Subsystem 1 - Part No: XXXXXXXXXXX 
   Component: Lenkradmodul    007 0050

1 Fault Found:
00888 - Wiper Switch for Intermittent Operation (E22) 
            014 - Defective

 

-------------------------------------------------------------------------------
Address 56: Radio
Cannot be reached
 

-------------------------------------------------------------------------------
Address 77: Telephone        Labels: 5P0-862-335.lbl
   Part No SW: 5P0 862 335     HW: 5P0 862 335 
   Component: FSE_2P5x        H18 0030  
   Revision: 00000001    Serial number: 00000000188674
   Coding: 0000422
   Shop #: WSC 73430 790 00000
   VCID: F0EFB64BE356489EE43-80A5

1 Fault Found:
01523 - Microphone for Telephone (R38) 
            011 - Open Circuit
             Freeze Frame:
                    Fault Status: 01101011
                    Fault Priority: 5
                    Fault Frequency: 1
                    Reset counter: 12
                    Mileage: 191274 km
                    Time Indication: 0
                    Date: 2000.00.00
                    Time: 12:33:37
 

About the microphone i've replaced the microphone by an external one and i've just used the same bay. Probably its detecting that the old micro is no longer there.

About the radio like you suggested i will not do anything.

Regarding the wiper switch (i don't know what this is) i need to investigate further because i've not tested the wipers. neither front neither in the back.

Any lights would be appreciated.

 

 

Cheers.

As your old radio is not there now, I would change my recommendation to untick 56 radio.

 

Save and check again if gateway is without fault, and if the car is not draining.

 

77 Telephone, the open circuit suggests something unplugged perhaps, did you unplug old microphone (or maybe it cannot reach radio so reports open circuit)

 

 

Hopefully you can get new multimeter and check battery.

  • Author
On 10/12/2022 at 19:39, varooom said:

As your old radio is not there now, I would change my recommendation to untick 56 radio.

 

Save and check again if gateway is without fault, and if the car is not draining.

 

77 Telephone, the open circuit suggests something unplugged perhaps, did you unplug old microphone (or maybe it cannot reach radio so reports open circuit)

 

 

Hopefully you can get new multimeter and check battery.

 

Hi,

 

i've only got the time now to have this done.

So, about the radio tick when i untick the thing it gives me an error on the gateway. 

Address 19: CAN Gateway (J533)       Labels: 7N0-907-530-V2.clb
   Part No SW: 7N0 907 530 H    HW: 1K0 907 951 
   Component: J533  Gateway H42 1620  
   Revision:   H42       Serial number: 070911F1002505
   Coding: 352302
   Shop #: WSC 73430 790 00085
   VCID: 3561C75F9CB4ADB6775-8060

1 Fault Found:
01044 - Control Module Incorrectly Coded 
            000 - -
             Freeze Frame:
                    Fault Status: 01100000
                    Fault Priority: 1
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 191567 km
                    Time Indication: 0
                    Date: 2000.00.00
                    Time: 12:16:43

 

So i think this needs to be ticked.

This is what i've got now: 

01-Engine -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
04-Steering Angle -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: OK 0000
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: Malfunction 0010
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
25-Immobilizer -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
56-Radio -- Status: Malfunction 0010
62-Door, Rear Left -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
76-Park Assist -- Status: OK 0000
77-Telephone -- Status: Malfunction 0010



-------------------------------------------------------------------------------
Address 16: Steering wheel        Labels: 1K0-953-549-MY8.lbl
   Part No SW: 1K0 953 549 G    HW: 1K0 953 549 G
   Component: Lenks‰ulenmodul 021 0050  
   Coding: 0002042
   Shop #: WSC 73430 790 00000
   VCID: 3663C05341B2A6AE7EF-8063

   Subsystem 1 - Part No: XXXXXXXXXXX 
   Component: Lenkradmodul    007 0050

1 Fault Found:
00888 - Wiper Switch for Intermittent Operation (E22) 
            014 - Defective - Intermittent


-------------------------------------------------------------------------------
Address 56: Radio
Cannot be reached



-------------------------------------------------------------------------------
Address 77: Telephone        Labels: 5P0-862-335.lbl
   Part No SW: 5P0 862 335     HW: 5P0 862 335 
   Component: FSE_2P5x        H18 0030  
   Revision: 00000001    Serial number: 00000000188674
   Coding: 0000422
   Shop #: WSC 73430 790 00000
   VCID: F0EFB64BE356489EE43-80A5

1 Fault Found:
01523 - Microphone for Telephone (R38) 
            011 - Open Circuit
             Freeze Frame:
                    Fault Status: 01111011
                    Fault Priority: 5
                    Fault Frequency: 1
                    Reset counter: 62
                    Mileage: 191567 km
                    Time Indication: 0
                    Date: 2000.00.00
                    Time: 12:25:00

 

So ignoring the telephone because it could be that i disconnected the original microphone, i've got only the Steering wheel problem and the radio not reachable.

 

Measuring the battery with the new multimeter it seems that the problem is yet not solved.

Same as before, but with a new CAN Gateway, the battery is drained by 0,45 amps.

Pictures below:

 

This is the measure with the radio fuse ON (Arrow in the picture):

measureWithFuse.thumb.jpg.1c12d481c9bad8db68cafdee33f2fb18.jpg

 

This is the measure with the radio fuse OFF (Arrow in the picture):

measureWithoutFuse.thumb.jpg.346320de37f78e158337aee2ec4d098f.jpg

 

As you can see the drain continues...

 

 

Cheers.

    • Like 1

    Seems the radio is broken in some way, where it seems to pull power when it shouldn't.

     

    Fuse removed for radio, and battery drain hits zero (or close enough to)

     

    Is that correct?

    • Author
    50 minutes ago, varooom said:

    Fuse removed for radio, and battery drain hits zero (or close enough to)

     

    Is that correct?

     

    Yes. i've posted pictures with and without the fuse.

    • Like 1
    1 hour ago, Bigster said:

    Yes. i've posted pictures with and without the fuse.

    Thanks I wished to double check.

     

    Maybe you need to locate a positive power feed, that is only live when the ignition is on, and feed that to the radio, with fuse of course?

     

    So key out, radio looses power immediately.

    • Like 1

    Can you unplug the supply to the rear of the radio and replace the fuse? See what reading that gives. There maybe something else in the circuit.

    • Like 1
    • Author
    On 17/12/2022 at 15:44, varooom said:

    Maybe you need to locate a positive power feed, that is only live when the ignition is on, and feed that to the radio, with fuse of course?

     

    No, this battery drain happens when the ignition is OFF. No key in the car.

    14 minutes ago, Bigster said:

     

    No, this battery drain happens when the ignition is OFF. No key in the car.

    You don't understand me, the radio currently has a permanent live power yes?

     

    It must do as the power keeps coming without a key.

     

    So you need to locate a wire that only has power when key is in and turned, and use that to power the radio.  No key, no power to radio, no drain right.

     

     

    • Like 1
    • Author
    On 17/12/2022 at 15:51, Jocko said:

    Can you unplug the supply to the rear of the radio and replace the fuse? See what reading that gives. There maybe something else in the circuit.

     

    I just get the fuse and replace it.

    More news to come...

    • Author
    On 19/12/2022 at 11:58, varooom said:

    You don't understand me, the radio currently has a permanent live power yes?

     

    It must do as the power keeps coming without a key.

     

    So you need to locate a wire that only has power when key is in and turned, and use that to power the radio.  No key, no power to radio, no drain right.

     

     

     

    Ah ok. Now i get what you mean.

    Yeah i can have a go on that.

     

     

    • Like 1
    • Author

    Just to have a, at least, other option to solve this issue (one that i would like to avoid, but...), do you guys know any good place to buy a radio for my Skoda Octavia MK2 (probably now with Android) to substitute the one that have got that is causing all this problems (potentially)?

    (and that ships to Portugal)

    2 hours ago, Bigster said:

     

    I just get the fuse and replace it.

    More news to come...

    What I am saying is unplug the supply to the back of the radio then make your measurement. If it is the radio then the current will be zero. If there is something else connected to the fuse which is causing the parasitic drain then it will still show on the meter. Basic fault finding. If there is something else then buying and fitting a brand new radio won't help the situation.

    My credentials: I am a retired electronic/electrical engineer.

    • Like 1
    • Author
    17 hours ago, Jocko said:

    What I am saying is unplug the supply to the back of the radio then make your measurement. If it is the radio then the current will be zero. If there is something else connected to the fuse which is causing the parasitic drain then it will still show on the meter. Basic fault finding. If there is something else then buying and fitting a brand new radio won't help the situation.

    My credentials: I am a retired electronic/electrical engineer.

    Hi, yes i've understood what was your recommendation to debug the thing. 

    The new radio option is only if nothing else works and also to start to look what will be the prices and types of radio that you guys recommend.

    • Author
    On 22/12/2022 at 17:53, Jocko said:

    What I am saying is unplug the supply to the back of the radio then make your measurement. If it is the radio then the current will be zero. If there is something else connected to the fuse which is causing the parasitic drain then it will still show on the meter. Basic fault finding. If there is something else then buying and fitting a brand new radio won't help the situation.

    My credentials: I am a retired electronic/electrical engineer.

     

    Hi guys, news...

     

    Changed the fuse, the drain continues. So it's not the fuse.

    Unplug all the plugs in the back of the radio, one by one and only i unplug the power the drain is over.

    So the conclusion it's the radio that does this consumption.

     

    Any more ideas?

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