Timer Function

BCM transmits rear window defogger ON signal to rear window defogger relay (integrated in fuse block J/B) for approximately 15 minutes when rear window defogger switch is turned ON while ignition switch is ON.
Timer is cancelled when rear window defogger switch is pressed again during timer operation. BCM stops the output of rear window defogger ON signal. The same reaction also occurs during timer operation when ignition switch is turned OFF.