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Thread: 2002 PCM Red connector pin#51 Transmission Temp Signal 4L80E????'s

  1. #1
    Lifetime Member GAMEOVER's Avatar
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    Default 2002 PCM Red connector pin#51 Transmission Temp Signal 4L80E????'s

    Does anyone know if I can just tap into that wire so I can get a Temp. signal for an Autometer gauge?
    I really don't want to drill a hole in the oil pan weld an aluminum fitting for the temp sensor...
    2008 2WD Ext.Cab Silverado 1500 6.0 V-MAX E38(L76) & T42(4L70E) MAF Only CL Corvette Servo AFE CAI INNOVATIVE LM-2 WBO2

    FLASHSCAN V2 & AUTOCAL

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    Hello Gameover,

    The TFT sensor in the transmission has an analogue output. An output of 0V = 304 F (151 C). An output of 5V = -40 F (-40 C). The PCM interprets this output and then sends a serial data message to the IPC, which controls the TFT gauge.

    The Autometer gauge would need to be compatible with a 0 to 5 volt sender output - to use the OEM TFT sensor.


    Regards,
    Taz

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    Lifetime Member GAMEOVER's Avatar
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    Thanks Taz....
    2008 2WD Ext.Cab Silverado 1500 6.0 V-MAX E38(L76) & T42(4L70E) MAF Only CL Corvette Servo AFE CAI INNOVATIVE LM-2 WBO2

    FLASHSCAN V2 & AUTOCAL

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    Lifetime Member Gregs's Avatar
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    what transmission are you putting it in? I have my temp sender screwed right into the pressure test port on my 4l60e. Its already taped for a 1/8 npt GM!

    edit: i see now you have a 4l80e, same thing you still have a 1/8 npt pressure test port on the drivers side

    03 Silverado 5.3 ECSB 4x4 Z71
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    Lifetime Member GAMEOVER's Avatar
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    Realy? I can't find it... Man I must be blind...

    Edit: Thanks to Taz I found it...
    I just loaded a pic up...
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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    Last edited by GAMEOVER; November 5th, 2011 at 04:33 AM.
    2008 2WD Ext.Cab Silverado 1500 6.0 V-MAX E38(L76) & T42(4L70E) MAF Only CL Corvette Servo AFE CAI INNOVATIVE LM-2 WBO2

    FLASHSCAN V2 & AUTOCAL

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    Not the greatest diagram below ... best I could find quickly ... hopefully it helps.


    Regards,
    Taz

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