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Thread: J1850 Data Question

  1. #21
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    Other than all the other stray indicators and DIC messages that are still displayed.

  2. #22
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    Quote Originally Posted by matthud View Post
    Other than all the other stray indicators and DIC messages that are still displayed.
    What is the length of the message number? 3 bytes?

    You could write up a python script to run through the full range of messages and see what pops up. Or find someone with the switch on sequence as hoped to do.

  3. #23
    Tuner in Training WDZaphod's Avatar
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    If you need a log of a 2000 Corvette with HUD, pls tell me - I can provide some raw data via ELM322 if still needed...

    I'm also playing around with this things, basically I like to deactivate the panic button on my FOB to use it as keyless ignition

    Greetings from switzerland,
    Michael

  4. #24
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    Quote Originally Posted by WDZaphod View Post
    If you need a log of a 2000 Corvette with HUD, pls tell me - I can provide some raw data via ELM322 if still needed...

    I'm also playing around with this things, basically I like to deactivate the panic button on my FOB to use it as keyless ignition

    Greetings from switzerland,
    Michael
    I would love it. I am still having trouble getting rid of the reduced power message on the DIC. If you could put the ELM322 in the bus monitor mode and record a few minutes worth of data to both address 60(IPC) and address EA(DIC and indicator lights). I would appreciate it immensely.

  5. #25
    Tuner in Training WDZaphod's Avatar
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    I'm pretty new to this things, can you pls tell me how to just record this adresses?
    > ATH1
    > ATMA
    and copy the output to a text file? If you need something else, pls tell me. When should I start, with running engine or before?
    Would be nice if you could post a list of the adresses on the corvette bus - I'm happy for every available information

    -Michael-

  6. #26
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    Quote Originally Posted by WDZaphod View Post
    I'm pretty new to this things, can you pls tell me how to just record this adresses?
    > ATH1
    > ATMA
    and copy the output to a text file? If you need something else, pls tell me. When should I start, with running engine or before?
    Would be nice if you could post a list of the adresses on the corvette bus - I'm happy for every available information

    -Michael-
    I replied to your email with some of my information.

  7. #27
    Tuner in Training WDZaphod's Avatar
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    sorry for the long delay, I had some troubles at work, and I didn't see my red lady for a couple of days.
    Finally it's done :-)

    -------------------------
    >atmrea
    8A EA 40 20 9E 40 2B <= ACC ON

    >
    8A EA 40 A0 9E 40 EB <= Ignition ON
    8A EA 28 20 95 00 F4
    8A EA 28 20 96 00 20
    8A EA 28 20 99 00 83
    8A EA 28 20 AE 00 BB
    8A EA 28 20 D3 00 AB
    8A EA 28 20 96 00 20
    8A EA 28 20 EF 00 1D
    8A EA 28 20 99 00 83
    8A EA 28 20 AE 00 BB
    8A EA 28 20 D3 00 AB
    C9 EA 99 04 79
    8A EA 28 20 E8 00 E4
    8A EA 10 20 81 00 9E
    8A EA 10 20 83 00 06
    8A EA B0 20 AC 00 AF
    8A EA 10 20 B7 00 EA
    8A EA 40 20 DB 40 A0
    8A EA 10 20 D5 00 ED
    8A EA 40 20 F0 40 5B
    8A EA 10 20 89 00 C4
    8A EA 28 20 96 00 20
    8A EA 40 A0 A5 40 A4
    8A EA 40 20 DB 40 A0
    8A EA 40 20 DE 40 C1
    8A EA 28 20 99 00 83
    8A EA 28 20 AE 00 BB
    8A EA 28 20 D3 00 AB
    8A EA 40 20 A6 40 B0
    8A EA 28 20 D4 00 52
    8A EA 40 20 DB 40 A0
    8A EA 40 20 DE 40 C1
    8A EA 28 20 B8 00 BA
    8A EA 28 20 B8 00 BA
    8A EA 28 20 B8 00 BA
    8A EA 28 20 B8 00 BA
    8A EA 28 20 B8 00 BA

    >
    8A EA 28 20 95 00 F4 <= Engine Start
    8A EA 28 20 99 00 83
    8A EA 28 20 9B 00 1B
    8A EA 28 20 C2 00 53
    8A EA 28 20 E8 00 E4
    8A EA 10 20 83 00 06
    8A EA 28 20 96 00 20
    8A EA 10 20 8F 00 71
    8A EA 10 20 D5 00 ED
    8A EA 10 20 81 00 9E
    8A EA 28 20 99 00 83
    8A EA 10 20 84 00 FF
    8A EA 10 20 8F 00 71
    8A EA 10 20 CB 00 B6
    8A EA 40 20 9E 40 2B
    8A EA 40 20 A6 40 B0
    8A EA 40 20 DB 40 A0
    8A EA 40 20 DD 40 15
    8A EA B0 20 AC 00 AF
    8A EA 40 20 A5 40 64
    8A EA 40 20 D0 40 2E
    8A EA 40 20 DB 40 A0
    8A EA 40 20 DE 40 C1
    8A EA 28 20 96 00 20
    C9 EA 99 04 79
    8A EA 40 20 9E 40 2B
    8A EA 40 20 A6 40 B0
    8A EA 28 20 99 00 83
    8A EA 10 20 B7 00 EA
    8A EA 28 20 B8 00 BA
    8A EA 40 20 DE 40 C1
    8A EA 10 20 E9 00 5B
    8A EA 40 20 D0 40 2E
    8A EA 40 20 F0 40 5B
    8A EA 28 20 B8 00 BA
    8A EA 28 20 B8 00 BA
    8A EA 28 20 B8 00 BA
    8A EA 28 20 B8 00 BA
    8A EA 28 20 B8 00 BA

    output stopped here, nothing more with still running engine for 2 mins
    ---------------------------
    ATMR60 didn't show ANY output, no matter if ignition was on, off, engine running, playing with the door lock, radio, lights, whatever...
    Maybe wrong adress?
    Hope it helps, if you need more, just tell me :-)

    have a nice weekend,
    Michael

  8. #28
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    Unfortunately none of those messages turned off the "reduced power message" on the driver information center. Is there a chance you could do a capture using ATMT 10. Maybe the PCM is sending out some message or a status message that clears that message.

  9. #29
    Tuner in Training WDZaphod's Avatar
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    No Problem, I will check again this weekend

  10. #30
    Tuner in Training WDZaphod's Avatar
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    Long time ago...
    Since a few days I'm back playing with my C5 OBD2 Stuff.
    Target is a kind of Valet ( ) with an ELM and an Arduino for my Vette. Works so far, I can open and close my Window via Remote Transmitter, also opening the fuel door works fine (driven by a relais).

    Did you solve your Prob already? Searching for Class2 Signal of Speed and RPM I found out, that the IPC directly gets a speed signal (4000 Pulses per mile) from a speed sensor.
    This might be the reason why you have this error? AFAIK also a Tacho Signal goes directly to the IPC, plus a Class2 Message for RPM on the bus.
    It seems you can control IPC via Class2 Data for testing reasons, but this might be not the usual way of driving the panel.

    Greetings,
    Michael