Got one for my dec 05 build camry 2AZ-FE. Of course it doesn't work. HOWEVER, I believe the pins just aren't in the right position. THe port is labelled "OBD-II"... There are 8 pins in each row, 2 rows, making 16 pins. On my car end, looking at the plug, with narrow side of the trapezoidal plug to the top, there are pins in 1, , ,4,5, ,7, , 9, , , ,13,14,15,16 On the Scanguage end there are pins at ,2, , 4,5,6,7,, ,10, , , ,14,15,16 , Beats me but it would seem by extrapolation that pins 1 on the car and 2 on the guage must match, same for pin 9 on the car and 10 on the guage. also 4,5,7 on the car likely 6,7,8 on the guage 13,14,15,16 on the car likely 12,13,14,15 on the guage Now, I am determined to make it work but worried about frying my car's brain if i rewire. Also I have no idea of what to do. You say you have an echo with which it works on, mind checking your car's port for the pin positions? The scanguage detects that the camry uses to ISO comms standard, and the pin layout on the car confirms this, but it switches itself off after about 1 minute 15 seconds. Also I recall either 15 or 16 may be the 12V power supply from the battery. Have alos emailed toyota OZ and scangauge in the US.