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    Ecu Programming Info

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    Posts1

    Information on automotive ecu programming tips and tricks.

    Tool Reviews & Info

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    Posts5

    Automotive diagnostic and programming tool reviews and information.

    GM ecu repair

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    Posts1

    GM ecu repair information, common failures, tips and tricks, programming and parts sourcing.

    Software Development

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    Posts1

    Automotive hardware and software development information and tutorials.

    Ford ecu repair

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    Posts1

    Ford ecu repair information, common failures, tips and tricks, programming and parts sourcing.

    Chrysler ecu repair

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    Posts1

    Chrysler ecu repair information, common failures, tips and tricks, programming and parts sourcing.

    New Posts
    • Gregorius S
      Aug 01, 2021
      Wish To Dive In
      Ecu Programming Info
      I have decided that I want to get into this business. I am currently a mechanic, but I have done a little board repair on ECUs for Lexus with bad caps. Now I want to take my knowledge much further than just replacing caps, I would like to be able to test and repair these devices and start moving more toward that than turning wrenches all day. I have the Car Hacker's Handbook, many books on assembly programming and C, The Art of Electronics, etc., and many other related topics waiting for me to read finish getting through them, but I thought I'd start with an old Lexus computer that I have the pin out for. Any advice would be appreciated! I have numerous electronics tools, though I could use a better scope and scanner.
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    • Keith Lewis
      Jan 28, 2020
      Need a parts list
      Ford ecu repair
      I saw Keenans video about repairing a ford idm for a 7.3l. He said there was supposed to be a parts list for the repairs but couldn't find it anywhere.
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    • jaredporter84
      Aug 16, 2020
      Where to Start?
      Chrysler ecu repair
      I picked up a 1997 Ram with a 5.9 and 46RE. It looks like the PCM might be dead. I found Keenans Youtube video about opening a JTEC PCM and realized I was on the right track looking for a voltage protection diode. However, my PCM doesn't exibit such a failure. When I turn the key on I'm getting voltage at the two 5v supplies (4.5 on one and 3.5 on the other) I don't get any response from a scan tool or the check engine light when doing a key self test. No lamps from the PCM appear to work, and the ASD and FUEL pump relays aren't getting their ground. I removed the PCM and supplied bench power, wired up a DLC between the PCM SCI TX/RX and a ELM327 scanner and am unable to get a connection. I then wired a small bulb up to the MIL driver pin and get nothing. I checked this pcb over pretty closely and can't see any signs of poor solder joints or broken traces. Where should I go next? I feel like the simple, few skills needed, easy to diagnose failures are accounted for.
      2 comments2
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