Without Auto A/C

SYSTEM

WITHOUT AUTO A/C : System Description


OPERATION DESCRIPTION

- BCM detects that rear window defogger switch turns ON while ignition switch is ON, and then transmits rear window defogger control signal to IPDM E/R via CAN communication for approximately 15 minutes.
- IPDM E/R turns rear window defogger relay ON when it receives rear window defogger control signal.
- The power is supplied to rear window defogger and door mirror defogger* when rear window defogger relay turns ON.
- When rear window defogger is activated, indicator lamp on rear window defogger switch turns ON.
*: For models with door mirror defogger.

TIMER FUNCTION

- BCM transmits rear window defogger control signal to IPDM E/R for approximately 15 minutes when the rear window defogger switch is turns ON while ignition switch is ON. Then, IPDM E/R activates rear window defogger and door mirror defogger*.
- The timer is cancelled if the rear window defogger switch is pressed again during timer operation. BCM
stops the output of rear window defogger control signal. The same action occurs during timer operation if the ignition switch is OFF.
*: For models with door mirror defogger.