Recent content by TJ Baker

  1. T

    How do thieves circumvent the passlock theft deterrent?

    I agree, I don't spend a lot of time on the grade school level relays and switches these days. My current project is an Arduino that reads all messages on the serial data bus and I can choose any given message to trigger any given action that a Tech 2 could do in response, short of...
  2. T

    How do thieves circumvent the passlock theft deterrent?

    Getting back on topic, just in case anyone is interested. Circled here is the actual resistor on an actual passlock sensor circuit board that varies from vehicle to vehicle and produces the variable voltage drop that the BCM sees and evaluates. The component with the blue dot is the...
  3. T

    How do thieves circumvent the passlock theft deterrent?

    On a nice quiet street a thief could spend a half hour or more checking things out. Just might find your switch since it logically would be within a drivers reach. But if the truck dies in the middle of the road it's far more likely to draw attention to the thief as they try to get it restarted...
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    How do thieves circumvent the passlock theft deterrent?

    In that case I could set it to die in say .25 miles. Or once it reached a speed of my choosing. Maybe just cut the fuel if the rpm went above 1200. I can do any of this with my 05 Yukon if I choose to.
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    How do thieves circumvent the passlock theft deterrent?

    Better yet use a timed-off system that allows the fuel pump to run for like 2 or 3 minutes. Let them get out on the road then kill it. Their less likely to hang around trying to get it going again when they're dead in the middle of the road attracting attention!!
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    Front Diff or Transfer Case

    Do remember if replacing the front differential you need to match your existing gear ratio.
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    ABS Light With No Codes

    Just tossing this out here for what it's worth. The trouble with scanners is they don't always tell you the true status byte value but their intepretation. I read my codes hands-on, issuing the requests with a serial terminal so I see the actual response from the module, not some softwares...
  8. T

    2002 5.3 OBD protocol?

    Exactly what model and manufacturer of scanner are you using?
  9. T

    2002 5.3 OBD protocol?

    You could look at your OBD2 port and see what terminals have wiring in them. If it is SAE J1850 VPW it will have wires at terminals #2, #4, #5, and #16. Google "OBD2 Pinout" to find a diagram of what wires are used for each of the possible protocols.
  10. T

    2002 5.3 OBD protocol?

    My guess is the SAE J1850 VPW protocol. That what GM was using mostly at the time. My 2005 5.3 LM7 Yukon uses J1850 exclusively. Edit: I cannot say what was used for vehicles not sold in the USA. European models might be different?
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    Cutting rotors for new brakes

    Hell, when I was in high school in our auto shop we even had a machine that arced new shoes (drum brakes) to match the inside diameter of the turned drums!
  12. T

    New Tires - who's running 44psi ???

    Thanks, Swathdiver. I knew that ;) My post was prompted by previous posts that claimed the max tire pressure was ONLY as a limit to be used when mounting a tire, and at least suggested that a tire should never be operated at that pressure. My example, at least on the face of it appears to...
  13. T

    New Tires - who's running 44psi ???

    The tires are the exact same tire sold with the truck as new. The door sticker is factory supplied. Are you suggesting they manufactured the truck with the wrong tires!!??
  14. T

    New Tires - who's running 44psi ???

    So what about a case where the door sticker for the rear tires is the same as the max pressure for the tire!!
  15. T

    Tech 2 Purchase

    To be clear here... anything George sends to me remains Georges property. We're just looking to see what can be learned here.
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