BRAKELIGHT Failure Sensor
- Ensure brakelights illuminate when brake pedal is depressed. If one bulb does not illuminate, check bulb condition. Repair as necessary and recheck. If all brakelights illuminate, go to next step. If no brakelights illuminate, check brakelight system. See appropriate EXTERIOR LIGHTS in SYSTEM WIRING DIAGRAMS article in ELECTRICAL.
- Open trunk. Remove left inside trunk panel to gain access to brakelight failure sensor. Turn ignition switch to OFF position. Disconnect brakelight failure sensor 6-pin connector. Start engine and let idle. BRAKE LAMP indicator should not illuminate. If BRAKE LAMP indicator illuminates and does not go out, check for a short to ground in White/Green wire between BRAKE LAMP indicator and brakelight failure sensor. See WIRING DIAGRAMS . If White/Green wire is okay, replace printed circuit board in instrument cluster. If BRAKE LAMP indicator illuminates and goes out, go to next step.
- Connect failure sensor 6-pin connector. Using a fused jumper wire, backprobe failure sensor 6-pin connector terminal No. 5 (Black wire) to ground. Turn ignition switch to ON position. Depress brake pedal. If BRAKE LAMP indicator illuminates, replace failure sensor. If BRAKE LAMP indicator illuminates and then goes out, check for open or poor ground in Black wire between failure sensor and ground G601. See WIRING DIAGRAMS .
Courtesy of AMERICAN HONDA MOTOR CO., INC.