Replace the tail/ brake light bulb, socket or both.
2. Brake light switches
► Check the brake light switches for continuity. Refer to "CHECKING THE SWITCHES".
Replace the brake light switch.
Connect the pocket tester (DC 20 V) to the tail/brake light coupler (wire harness side) as shown.
Negative tester probe ^ black ® Positive tester probe ^ yellow (2)
► Pull in the brake lever or push down on the brake pedal.
► Measure the voltage (DC 12 V) of yellow (2) on the tail/brake light coupler (wire harness side).
► Is the voltage within specification?
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