Climate Control Unit Inputs and Outputs

WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Climate Control Unit 36P Connector

Courtesy of AMERICAN HONDA MOTOR CO., INC.

36P CONNECTOR

CONNECTOR TERMINAL REFERENCE

Cavity	Wire color	Terminal name	Description	Signal
1	LT GRN	S-COM	Ground for sensors, air mix control motor, and mode control motor	Less than 0.2V at all times
3	GRN	S5V	Power source for humidity sensor and air mix control motor	With ignition switch ON (II): about 5V
5	RED	AMD-P	Outputs air mix control motor potentiometer signal	Drive on COOL side: about 1V Drive on HOT side: about 4V
6	GRN	CAN	B-CAN communication line	With ignition switch ON (II): pulses
7	PUR	RrDEF Ry	Signal for rear window defogger relay	With defogger switch OFF: battery voltage With defogger switch ON: 0 V
8	LT BLU	REC	Drivers recirculation control motor on the RECIRCULATE side	With ignition switch ON (II) and recirculation control motor in position FRESH: battery voltage
9	GRN	FRS	Drivers recirculation control motor on the FRESH side	With ignition switch ON (II) and recirculation control motor in position RECIRCU: battery voltage
10	BRN	M-DEF	Mode control motor on the DEF side	With ignition switch ON (II) and mode control motor moving to DEF: battery voltage
11	RED	M-VENT	Mode control motor on the VENT side	With ignition switch ON (II) and mode control motor moving to VENT: battery voltage
12	PUR	M-HOT	Air mix control motor on the HOT side	With ignition switch ON (II) and air mix control motor moving to HOT: battery voltage
13	BLU	M-COOL	Air mix control motor on the COOL side	With ignition switch ON (II) and air mix control motor moving to COOL: battery voltage
14	BLK	GND	Climate control unit ground (G502)	Less than 0.2 V at all times
15	LT BLU	BLW-V	Feedback of power transistor drain voltage	With ignition switch ON (II): about 0 V -battery voltage (depending on blower motor speed)
17	RED	IG2	IG2 power supply	With ignition switch ON (II): battery voltage
18	GRY	ILL+	Power source for illumination	With lighting switch ON: battery voltage
19	PUR	Tsum	Detects sunlight sensor signal	With ignition switch ON (II) and sensor out of direct sunlight: 3.6-3.7 V or more With ignition switch ON (II) and sensor in direct sunlight: 3.3-3.5 V or less
20	LT BLU	Tr	Detects in-car temperature sensor signal	With ignition switch ON (II): about 1.0-4.0 V (depending on in-car temperature)
22	PNK	Tarn	Detects outside air temperature sensor signal	With ignition switch ON (II): about 1.0-4.0 V (depending on outside air temperature)
23	ORN	Teva	Detects evaporator temperature sensor signal	With ignition switch ON (II): about 1.0-4.0 V (depending on evaporator temperature)
24	WHT	HUM	Detects humidity sensor signal	With ignition switch ON (II): about 1.0-4.0 V (depending on humidity)
26	BLU	ACS	Outputs A/C on/off signal	With ignition switch ON (II), normal A/C pressure, and A/C switch ON: less than 0.5 V With ignition switch ON (II), normal A/C pressure, and A/C switch OFF: battery voltage
27	PNK	MODE1	Mode control motor position feedback 1 signal	With ignition switch ON (II): about 5 V (depending on motor position)
28	YEL	MODE 2	Mode control motor position feedback 2 signal	With ignition switch ON (II): about 5 V (depending on motor position)
29	WHT	MODE 3	Mode control motor position feedback 3 signal	With ignition switch ON (II): about 5 V (depending on motor position)
30	GRY	MODE 4	Mode control motor position feedback 4 signal	With ignition switch ON (II): about 5 V (depending on motor position)
31	WHT	AC SI	Communication signal to audio-navigation unit	With ignition switch ON (II): pulses
32	BRN	AC CLK	Communication signal to audio-navigation unit	With ignition switch ON (II): pulses
33	YEL	AC SO	Communication signal to audio-navigation unit	With ignition switch ON (II): pulses
34	ORN	BLW-G	Outputs power transistor gate voltage	With ignition switch ON (II) and fan control button OFF: less than 0.5 V. With ignition switch ON (II) and fan control button ON: about 4.0 V - battery voltage (depending on blower motor control)
36	BLU	ILL-	Detects illumination control signal	With illumination switch ON: changed voltage (depending on dashlights brightness controller)

Fig 2: Identifying Climate Control Unit 5P Connector

Courtesy of AMERICAN HONDA MOTOR CO., INC.

5P CONNECTOR

CONNECTOR TERMINAL REFERENCE

cavity	wire color	terminal name	Description	Signal
3	BLK	GND	Climate control unit ground (G502)	Less than 0.2V at all times