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OJ Avery

Porch Pup
  • Content Count

    69
  • Joined

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4 Good

About OJ Avery

  • Rank
    Old Iron Expert

Profile Information

  • Location
    UPSTATE NY

Previous Fields

  • Make
    MACK
  • Model
    GRANITE
  • Year
    2012

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  1. OJ Avery

    Allison code P0843

    Having no luck on replacement procedure for the ps1 switch. Winging it
  2. OJ Avery

    Allison code P0843

    yes, unit has had oil and filters changed. Was in here in June for same code. Looked a little deeper and its a pressure switch. I actually found a ohm value for it when I googled it so I'm going to drop the pan and see what I see.
  3. OJ Avery

    Allison code P0843

    I'm having trouble locating in the parts manual which solenoid this is. Allison 4500. 13 Mack GU I don't have the breakouts I need to really diagnose it, boss wants to see if just replacing the solenoid will save a trip to the Allison dealer. Thanks!!
  4. OJ Avery

    Derate warning

    previously worked on at a different location, no access to their laptop
  5. OJ Avery

    Derate warning

    ok, so I did the reset, the instructions said to do a regen. Computer said regen was completed. After the regen it derated. Now it has a code for reductant pump a control circuit open ( p208A13)
  6. OJ Avery

    Derate warning

    IDK what the code was, it was cleared when I got to it this morning. I will look for the function parameters reset. Thanks MACKPRO, I'll let you know what I find
  7. OJ Avery

    Derate warning

    I have an odd one. 14 gu712 w/mp7. I'm the 3rd person to work on this so here's the story. Code for def quality. Derate for def quality on the lcd. Sensor was replaced, new def added. Same problem. Not sure what was done by 2nd person. I get it this morning , no codes, derate for def quality on lcd. Cleared lcd warning with the guard dog. Drove for 20 minutes no problems. parked in my bay, off for about 10 minutes. Turn ignition on , lightning bolt and check engine light and def quality derate on lcd all on. after about 5 seconds lightning bolt goes off, a couple seconds later the check engine light goes off. Again I clear the derate message with the guard dog. No codes. I can't find a learned data reset or an acm reset anywhere in ptt. What is going on with this thing? Thanks
  8. OJ Avery

    Bad DEF fluid, What the?!

    We've had a couple of the sensors go bad in Mack granite with mp7. We've also had drivers put washer fluid bin there too. blue cap?? blue (washer) fluid...duh. What a mess
  9. OJ Avery

    heated mirrors

    Actually I did pull the connectors apart and pried the connector yesterday. Put it back together and turned on the mirror heat. Then I wiggled the harness at the back of the panel and I could not get it to go off. Thanks for the help turckster!!
  10. OJ Avery

    heated mirrors

    ok, so I measured resistance , pin 4 to pin 27a... .5 ohm. Then pin 86 to 22b... 5.0 ohm. I wiggled the harness no changes. So then with everything connected , ignition on I pressed and held the switch and wiggled the connection at the dash panel and the light came on. So I have it positioned where it'll come on every time (so far ) but what would you recommend. I had my suspicions early on that the dash panel itself was bad. But I don't know what to do now. Should I order a dash unit? If I order a dash panel will it need to be programmed at the dealer?
  11. OJ Avery

    heated mirrors

    Does ambient air temp sensor play a part in this ?
  12. OJ Avery

    heated mirrors

    Also when I jumper pin 4 and 12 on the switch, press and hold button, I get 12 volts at the mirrors
  13. OJ Avery

    heated mirrors

    turckster, I concluded that the instrument panel controls the ground circuit. But you cannot just ground that circuit, you'll pop the fuse. ZDB I felt I should have a lit switch with out the mirrors plugged in. Here is what I have. At the switch I have power at terminal 2 with the ign on. When you push the switch I have power at term 4 on the switch, and that power goes to term 27a on the instrument panel. With ign off I have power at pins 85 and 30 at the mirror heater relay. With the relay plugged in I have power at pin 86 at the relay which sends power to pin 22b at the instrument panel. I have continuity from pin 12 on the switch to the positive at the mirror. The Ground at the mirror is good. ALSO.... I took the dash, the relay and the switch and installed them all separately in another 2013 gu and every time the heated mirrors worked. I'm so lost on this
  14. OJ Avery

    heated mirrors

    right mirror is new. I've checked for continuity and its good. Should the switch light with both them unplugged ? 1 Unplugged?
  15. OJ Avery

    heated mirrors

    Its a fairly simple circuit, that's what's driving me insane. I swapped dash, relay and switch. All those components work good in another vehicle (13 GU)

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