4 Runner 2WD L4-2693cc 2.7L DOHC MFI (1997)
2. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 2.
3. Turn the rheostat knob to fully counterclockwise, check that the test bulb goes out.
4. Gradually turn the rheostat knob to clockwise, check that the test bulb brightness changes from dark to bright.
If operation is not as specified, replace the rheostat.
