Mirror Heater Does Not Operate With Rear Defogger Switch

Mirror Heater Does Not Operate With Rear Defogger Switch

SYSTEM DESCRIPTION
The mirror heater operates when the following conditions are met: 1) the air conditioning amplifier sends a rear defogger switch signal through the BEAN (multiplex communication) line to the front multiplex network door ECU LH and RH, and 2) the defogger operates.

WIRING DIAGRAM