Climate Control Unit Inputs and Outputs

Fig 1: Identifying Climate Control Unit 40P Connector Terminals

Courtesy of AMERICAN HONDA MOTOR CO., INC.

WIRE COLOR SPECIFICATION

Cavity	Wire color	Signal
1	LT BLU	TAILLIGHT RELAY	INPUT
3	WHT	VARIABLE CAPACITY CONTROL SOLENOID VALVE	INPUT
4	GRN	VARIABLE CAPACITY CONTROL SOLENOID VALVE	OUTPUT
5	GRY	CONTROL MOTOR RELAY	INPUT
6	PUR	NAVIGATION UNIT	OUTPUT
7	ORN	NAVIGATION UNIT	INPUT
8	BRN	NAVIGATION UNIT	OUTPUT
9	BLU	BLOWER FEEDBACK	INPUT
10	RED	POWER TRANSISTOR CONTROL	OUTPUT
12	GRY	A/C PRESSURE SENSOR	OUTPUT
14	LT GRN	A/C PRESSURE SENSOR	OUTPUT
15	LT BLU	IN-CAR TEMPERATURE SENSOR	OUTPUT
16	PNK	OUTSIDE AIR TEMPERATURE SENSOR	OUTPUT
17	BRN	EVAPORATOR TEMPERATURE SENSOR	OUTPUT
18	PUR	SUNLIGHT SENSOR	OUTPUT
20	YEL	IG2 (Power)	INPUT
21	RED	GAUGE ASSEMBLY	OUTPUT
23	LT GRN	BUS COMMUNICATION LINE	INPUT/OUTPUT
24	LT GRN	A/C SIGNAL	INPUT
29	YEL	AUDIO UNIT	INPUT
30	RED	AUDIO UNIT	OUTPUT
31	BLK	GROUND (G503)	OUTPUT
32	PNK	CONTROL MOTOR COMMON GROUND	INPUT
33	ORN	SENSOR COMMON GROUND	INPUT
36	WHT	DRIVER'S VENT AIR TEMPERATURE SENSOR	OUTPUT
37	LT BLU	PASSENGER'S VENT AIR TEMPERATURE SENSOR	OUTPUT
39	PUR	CONTROL MOTOR RELAY	INPUT
40	GRN	CONTROL MOTOR COMMON POWER	OUTPUT