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



GAMEOVER
November 4th, 2011, 12:53 PM
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...:grin::grin::grin:

Taz
November 4th, 2011, 01:11 PM
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

GAMEOVER
November 4th, 2011, 02:00 PM
Thanks Taz....

Gregs
November 5th, 2011, 02:30 AM
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 :thankyou2: 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

GAMEOVER
November 5th, 2011, 03:47 AM
Realy? I can't find it... Man I must be blind...:D

Edit: Thanks to Taz I found it...
I just loaded a pic up...

Taz
November 5th, 2011, 04:18 AM
Not the greatest diagram below ... best I could find quickly ... hopefully it helps.


Regards,
Taz