Heater and Air Conditioning Control Unit (Dual) Components and Component Locations

Components (1)

Control Panel (Dual Heater & A/C Control Module - A)

Connector Pin Assignment (1)

Connector	PIN NUMBER	Function	Connector	PIN NUMBER	Function
Connector (A)	1	BATT+ (TAIL)	Connector (A)	29	ECV (+)
	2	SENSOR SUPPLY (+5 V)		30	ECV (-) (Ground)
	3	HAZARD SIGNAL		31	PHOTO SENSOR (-) - LEFT
	4	ACC		32	PHOTO SENSOR (-) - RIGHT
	5	ACTUATOR MODE (VENT)		33	HTD
	6	ACTUATOR MODE (DEF)		34	REAR FOG LAMP SWITCH
	7	ACTUATOR F/B MODE		35	C-CAN
	8	ACTUATOR INTAKE (FRE)		36	-
	9	INTAKE ACTUATOR (REC)		37	PTC ON SIGNAL
	10	INTAKE ACTUATOR F/B		38	PTC RELAY 2
	11	TEMP ACT''R (COOL)-DIVER		39	PTC RELAY 3
	12	TEMP ACTUATOR (HOT) - DRIVER		40	SENSOR GROUND
	13	TEMP ACT'R F/B-DIVER	Connector (B)	1	GROUND
	14	TEMP ACTUATOR (COOL) - PASSENGER		2	-
	15	TEMP ACTUATOR (WARM) - PASSENGER		3	DEF ACTUATOR (CLOSED)
	16	TEMP ACT''R F/B-PASSENGER		4	DEF ACTUATOR (OPEN)
	17	C_CAN HIGH		5	DEF ACT''R F/B
	18	C_CAN LOW		6	HUMIDITY (PWM)
	19	DELAY (+)		7	-
	20	ILL- (REO)		8	IGN2
	21	ION SIGNAL		9	GROUND
	22	CLEAN SIGNAL		10	-
	23	IONIZER DIAGNOSIS		11	BLOWER MOTOR (+)
	24	-		12	PT (GATE)
	25	-		13	FET (DRAIN F/B)
	26	AMBIENT SENSOR (+)		14	ISG-DC
	27	-		15	IGN1
	28	EVAPORATOR SENSOR (+)		16	BATT

Components (2)

Control Panel (Dual Heater & A/C Control Module - B)

Connector Pin Assignment (2)

Connector	PIN NUMBER	Function	Connector	PIN NUMBER	Function
Connector (A)	1	BATT+ (TAIL)	Connector (A)	29	ECV (+)
	2	SENSOR SUPPLY (+5 V)		30	ECV (-) (Ground)
	3	HAZARD SIGNAL		31	PHOTO SENSOR (-) - LEFT
	4	-		32	PHOTO SENSOR (-) - RIGHT
	5	ACTUATOR MODE (VENT)		33	HTD
	6	ACTUATOR MODE (DEF)		34	REAR FOG LAMP SWITCH
	7	ACTUATOR F/B MODE		35	C-CAN
	8	ACTUATOR INTAKE (FRE)		36	-
	9	INTAKE ACTUATOR (REC)		37	PTC ON SIGNAL
	10	INTAKE ACTUATOR F/B		38	PTC RELAY 2
	11	TEMP ACT''R (COOL)-DIVER		39	PTC RELAY 3
	12	TEMP ACTUATOR (HOT) - DRIVER		40	SENSOR GROUND
	13	TEMP ACT'R F/B-DIVER	Connector (B)	1	GROUND
	14	TEMP ACTUATOR (COOL) - PASSENGER		2	-
	15	TEMP ACTUATOR (WARM) - PASSENGER		3	DEF ACTUATOR (CLOSED)
	16	TEMP ACT''R F/B-PASSENGER		4	DEF ACTUATOR (OPEN)
	17	C_CAN HIGH		5	DEF ACT''R F/B
	18	C_CAN LOW		6	HUMIDITY (PWM)
	19	DELAY (+)		7	-
	20	ILL- (REO)		8	IGN2
	21	ION SIGNAL		9	GROUND
	22	CLEAN SIGNAL		10	-
	23	IONIZER DIAGNOSIS		11	BLOWER MOTOR (+)
	24	MM_CAN HIGH		12	PT (GATE)
	25	MM_CAN LOW		13	FET (DRAIN F/B)
	26	AMBIENT SENSOR (+)		14	ISG-DC
	27	-		15	IGN1
	28	EVAPORATOR SENSOR (+)		16	BATT