Manual A/C Model

Control Module I/O Signal

Fig 1: Identifying Air Conditioning System Manual A/C Model Connector Terminals

Courtesy of SUBARU OF AMERICA, INC.

• Control Module (i6)

  Terminal No.	Content	Measuring condition	Standard
  1	FAN SW signal	Blower fan is ON	1 V or less
  2	A/C thermostat signal	When blower fan is ON and A/C switch is ON	5 V or less
  3	Intake door actuator (RECIRC)	RECIRC mode	8 V or more
  4	Intake door actuator (FRESH)	FRESH mode	8 V or more
  6	IGN	Ignition switch ON	Battery voltage
  8	GND	Always	1 V or less
  9	RR DEF ON signal	When the rear defogger switch is ON	1 V or less
  10	RR DEF operating status signal		Battery voltage
  12	ILL-	Illumination ON (measure between 12 - 14)	Battery voltage
  14	ILL+

• Blower fan switch (i5)