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Connect a ohmmeter to the connector of stop lamp switch, and check whether or not there is continuity when the plunger of the stop lamp switch is pushed in and when it is released.

The switch is in good condition if there is no continuity when the plunger is pushed.

Is there no continuity when the plunger is pushed?

	▶ Fault is intermittent caused by open harness in stop lamp switch line, faulty brake lamp switch or was repaired and HECU memory was not cleared. Go to "Verification of Vehicle Repair" procedure.
	▶ Substitute with a known-good brake lamp switch and check for proper operation. If problem is corrected, replace stop lamp switch and then go to "Verification of Vehicle Repair" procedure.