Experimenting with bypassing the AT 4th gear prohibition when cold - Toyota Yaris Forums

bronsin · 12-31-2011, 02:07 PM

I got it hooked up. I started up the engine and pressed the momentary switch. After about 2 seconds the CEL goes out. Then it came back on.

I managed to misread the directions and hooked it up backwards.

To aid dyslexics like myself run a wire straight from the blue wire of the temperature sensor to one side of the momentary switch.

The other side of the momentary switch gets the resistor hooked up to it. Then connect a wire to the resistor and run it to ground.

No time for any further testing.

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12-31-2011, 02:07 PM	#20
bronsin Drives: 2009 Base Hatch 2 Dr Auto Join Date: Dec 2008 Location: nj Posts: 4,790	I got it hooked up. I started up the engine and pressed the momentary switch. After about 2 seconds the CEL goes out. Then it came back on. I managed to misread the directions and hooked it up backwards. To aid dyslexics like myself run a wire straight from the blue wire of the temperature sensor to one side of the momentary switch. The other side of the momentary switch gets the resistor hooked up to it. Then connect a wire to the resistor and run it to ground. No time for any further testing.