1st Gen Sequoia/Tundra ScanGauge II Transmission Monitoring (Fluid Temp, Converter Temp, Gear Position, and Converter Lockup)

Wisconsinite762

New member
With my extensive knowledge of CANbus communications and automotive sensors/electronics I believe I have figured out how to monitor additional features of the transmission, which may come in handy for some of y'all so I figured I would share. These are Xgauges that can be put into your ScanGauge II in order to monitor the torque converter fluid temp, torque converter lock up status, and gear position. Combined with the already published transmission fluid temp Xgauge, you can now monitor 4 different points of the transmission which may come in handy in situations, like towing or slow speed wheeling in really hot weather.

In reality I just mashed together different Xgauge commands from different years/models and hoped for the best...to my surprise they actually worked.

EXPERIMENTAL XGAUGE COMMANDS (working on my 2006 Sequoia)
Please report below if you try these out and whether or not they do or do not work for you.

Trans Fluid Temp from Torque Converter (F)
TXD: 07E021D9
RXF: 032100000000
RXD: 2808
MTH: 00090005FFD8
NAME: TFC

Torque Converter Lockup (On/Off)
TXD: 07E021DA
RXF: 046125DA0000
RXD: 2901
MTH: 000100010000
NAME: TCL

Gear Position (1, 2, 3, 4, 5)
TXD: 07E021DA
RXF: 046105DA8000
RXD: 2C04
MTH: 000100010000
NAME: GP


Below is the already released Xgauge command straight from the ScanGauge website that I use for transmission fluid temp (pan)

Transmission Fluid Temp (F)
TXD: 07E021D9
RXF: 032100000000
RXD: 1808
MTH: 00090005FFD8
NAME: TFT
 

Wisconsinite762

New member
I have a feeling these may only work with later year 1st gens. Either 1st gens with the 5 speed A750 transmission (i.e. 05-07 Sequoia)
Or, possibly 03+ because I'm pretty sure 01-02 used a different communication protocol.
 

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