Always wear safety glasses when working on your vehicle. Wear other personal protective equipment (PPE) when necessary, for example latex gloves or closed toe shoes.
Refer to your vehicle's owner's manual for the specific location of your OBDI or OBDII connection.
Turn your key to the ON position so that the scanner can receive the code(s).
Plug your scan tool into the OBD connection, turn on the scan tool and select the appropriate steps to read the code.
Refer to a vehicle specific repair guide for resistance specifications for your engines idle control valve. If the resistance is out of specifications, the TPS must be replaced.
Locate the idle control valve.
Disconnect the idle control valve from its mounting point and wiring harness.
Install a new idle control valve along with a new gasket. Clean the mounting surfaces of the old gasket prior to installation.
Erase any codes on the scan tool through the delete or erase command.
Road test your vehicle to see if the light returns.
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