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Re: what is the wiring diagrams for 2003 Toyota 4runner:...
Be careful to never place your fingers in an electronically controlled throttle body as it could open and close on your fingers causing serious injury. BBB Industries should list a wiring diagram for your vehicle.
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code p2118 refers to throttle actuator control (ATC) throttle motor current--range/performance problem===causes--wiring --throttle motor.
check that the wiring connections are clean and tight then replace the ATC unit
P2118 Throttle Actuator Control Motor Current. Range performance problem. P2118 sets when the power supply voltage to the
throttle actuator motor is out of range. The throttle actuator motor has
its own regulated power supply in the PCM. If the supply voltage is
less than 4 volts, the system shuts down, the code will set and the MIL
will illuminate. The normal operating range for the power supply is 9 to
14 volts. To solve the problem you are having, I set up a pdf with all the instructions including the diagrams to fix your problem. Click on this link and it will lead you to the pdf. http://highlanderclub.ru/files/manual/04/21j6674h/cip2118.pdf