P12 and E40 Support?

They go by many names, P01, P59, VPW, '0411 etc . Circa 1999 to 2006. All VPW OBD2 PCMs.
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Re: P12 and E40 Support?

Postby Tazzi » Thu Jan 30, 2020 10:36 am

I thought the E40 used CANbus??
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Re: P12 and E40 Support?

Postby Eagle5 » Thu Jan 30, 2020 11:05 am

This is a p12 from a 4.2l trailblazer. CAN bus isn't in the wiring diagram. I beleive the hardware supports CAN bus, but only the cobalt use it. I am communicating via j1850.

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Re: P12 and E40 Support?

Postby Eagle5 » Sat Feb 01, 2020 9:08 pm

I don't think the memory search is going to bear fruit.

Does this output make sense?
STPX H:6C10F0, R:1, D:2701
67014B25

>STPX H:6C10F0, R:1, D:2702F344
670234

>STPX H:6C10F0, R:1, D:2701
67010000

>STPX H:6C10F0, R:1, D:340010001BBE1E
7F340010001BBE12

I purchased a VXDIAG plug, and tried to install the TIS2000 software. It did not work because it wants to install IE4.01 SP2, which won't work. Do you know of some other method.

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Re: P12 and E40 Support?

Postby antus » Sun Feb 02, 2020 6:44 pm

Use an older copy of windows in a virtual machine, eg windows xp.
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Re: P12 and E40 Support?

Postby Eagle5 » Mon Feb 03, 2020 4:49 am

The main chip is P/N 263 09394824 K62K. The memory controller is AM29BL802CB-65RZE.

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Re: P12 and E40 Support?

Postby kur4o » Mon Feb 03, 2020 5:03 am

Eagle5 wrote:The main chip is P/N 263 09394824 K62K. The memory controller is AM29BL802CB-65RZE.


Do you have a pic of the board?

Code: Select all
>STPX H:6C10F0, R:1, D:340010001BBE1E
7F340010001BBE12

Try loading at ff6250 memory range.
$1BBE1E address is part of the flash chip, so you can`t write there.

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Re: P12 and E40 Support?

Postby Eagle5 » Mon Feb 03, 2020 6:22 am

Didn't work ...
b'STPX H:6C10F0, R:1, D:2701\r'
b'STPX H:6C10F0, R:1, D:2701\r670116E8\r\r>'
b'STPX H:6C10F0, R:1, D:2702D5AA\r670234\r\r>'
b'STPX H:6C10F0, R:1, D:34001000ff6250\r7F34001000FF6212\r\r>'

Where is the processor RAM in memory vs. the flash chip?

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Re: P12 and E40 Support?

Postby Eagle5 » Mon Feb 03, 2020 6:50 am

Never mind, I see that the chip is mapped to addresses 000000 - $7FFFFF.

What is "00 10 00" within the 0x34 command? Your trying to write to the very last area in ram prior to the registers.

Getting Window XP is proving to be difficult.

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Re: P12 and E40 Support?

Postby kur4o » Mon Feb 03, 2020 6:56 am

I hate to say it but 7f means mode is not supported. If the mode was supported you will likely get 34 xx response. xx meaning the reason for refusing.
Flashing is likely done via canbus. Vpw is used for module integration with older design.

The processor sees ram from ff0000 til ffffff. Not all is available. It depends on pcm and configuration.
Do you have a bin from the pcm.

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Re: P12 and E40 Support?

Postby kur4o » Mon Feb 03, 2020 6:59 am

Eagle5 wrote:
What is "00 10 00" within the 0x34 command? Your trying to write to the very last area in ram prior to the registers.

Getting Window XP is proving to be difficult.


00 is submode

10 00 is the size of the requested upload

ff 62 50 is the address you are trying to upload.

Try oracle virtualbox for xp.

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