Kia Optima: Components and Components Location

Components

Connector pin function

Connector pin function

Connector	PIN NO.	Function	Connector	PIN No.	Function
Connector(A)	1	GND	Connector(B)	18	Hazard Signal
	2	Middle High		19	-
	3	Middle Low		20	Rheostat (ILL -)
	4	High		21	IGN2
	5	Common		22	IGN1
	6	Low		23	ACC
Connector(B)	1	BAttery		24	-
	2	Tail Lamp (ILL+)		25	-
	3	Sensor REF (+5V)		26	Rear Defog S/W
	4	Mode Actuator (F/B)		27	-
	5	Temp Actuator (F/B)		28	-
	6	Intake Actuator (F/B)		29	Detent Out (+)
	7	Evaporator Sensor (+)		30	Blower F/B
	8	Ambient Sensor (+)		31	Sensor GND
	9	-		32	-
	10	Blower Common		33	C – Can HIGH
	11	HTD		34	C – Can LOW
	12	Mode Actuator (VENT)		35	ECV +
	13	Mode Actuator (DEF)		36	ECV – (GND)
	14	Temp Actuator (COOL)		37	-
	15	Temp Actuator (WARM)		38	Sensor GND
	16	Intake Actuator (FRE)		39	GND
	17	Intake Actuator (REC)		40	GND

Controller. Heater & A/C Control Unit(Manual)

...

Heater & A/C Control Unit(Manual). Repair procedures

Replacement 1. Disconnect the negative (-) battery terminal. 2. Using the screwdriver, remove the side cover (A). 3. Loosen the mounting scre ...

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