Remove the instrument panel.

Remove the VSA OFF switch (A) from the back side of the instrument panel.

Check for continuity between VSA OFF switch 5P connector terminals No. 1 and No. 2 (without headlight washer) or VSA OFF switch 6P connector terminals No. 1 and No. 2 (with headlight washer). There should be continuity when the switch is pushed.

Check for continuity between VSA OFF switch 5P connector terminals No. 4 and No. 5 (without headlight washer) or VSA OFF switch 6P connector terminals No. 5 and No. 6 (with headlight washer). There should be continuity at all times.

Install the VSA OFF switch in the reverse order of removal.