4409433

Connect a ohmmeter to the connector of brake light switch, and check whether or not there is continuity when the plunger of the brake light 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?

YES

Fault is intermittent caused by open harness in brake light switch line, faulty brake lamp switch or was repaired and HECU memory was not cleared. Go to the applicable troubleshooting procedure.

Substitute with a known-good brake lamp switch and check for proper operation. If problem is corrected, replace brake lamp switch and then go to "Verification of Vehicle Repair" procedure.