Climate Control Unit Connector for Inputs and Outputs (2016 2017 2018 2019 2020 2021 2022)

Climate Control Unit Connector for Inputs and Outputs

Courtesy of HONDA, U.S.A., INC.

CONNECTOR A

Cavity	Wire color	Terminal name	Description	Signal
1	GRY	AMD-P DR	Detects potentiometer signal of driver's air mix control motor (door position)	With vehicle in ON mode: about 0.5-4.0 V (depending on driver's air mix control motor position)
2	RED	AMD-P AS	Detects potentiometer signal of passenger's air mix control motor (door position)	With vehicle in ON mode: about 0.5-4.0 V (depending on passenger's air mix control motor position)
3	GRN	RFD-P	Detects potentiometer signal of recirculation control motor (door position)	With vehicle in ON mode: about 0.5-4.5 V (depending on recirculation control motor position)
4	PUR	MDD-P	Detects potentiometer signal of mode control motor (door position)	With vehicle in ON mode: about 0.5-4.5 V (depending on mode control motor position)
5	Not used	Not used	----	----
6	BRN	IG2 A/C	IG2 power source	With vehicle in ON mode: battery voltage
7	GRN	MODE MTR DEF	Outputs to drive mode control motor to DEF side	With vehicle in ON mode and mode control motor moving to DEF: battery voltage
8	WHT	MODE MTR VENT	Outputs to drive mode control motor to VENT side	With vehicle in ON mode and mode control motor moving to VENT: battery voltage
9	PNK	M-HOT DR	Output to drive driver's air mix control motor to HOT side	With vehicle in ON mode and driver's air mix control motor moving to HOT: battery voltage
10	LT BLU	M-COOL DR	Output to drive driver's air mix control motor to COOL side	With vehicle in ON mode and driver's air mix control motor moving to COOL: battery voltage
11	ORN	F/R MTR(REC)	Output to drive recirculation control motor to RECIRCULATE side	With vehicle in ON mode and recirculation control motor moving to RECIRCULATE: battery voltage
12	PUR	F/R MTR(FRESH)	Output to drive recirculation control motor to FRESH side	With vehicle in ON mode and recirculation control motor moving to FRESH: battery voltage
13	PNK	M-HOT AS	Output to drive passenger's air mix control motor to HOT side	With vehicle in ON mode and passenger's air mix control motor moving to HOT: battery voltage
14	LT BLU	M-COOL AS	Output to drive passenger's air mix control motor to COOL side	With vehicle in ON mode and passenger's air mix control motor moving to COOL: battery voltage
15	PNK	B CAN-H	B CAN-H communication signal	With vehicle in ON mode: pulses
16	Not used	Not used	----	----
17	BLU	B CAN-L	B CAN-L communication signal	With vehicle in ON mode: pulses
18	Not used	Not used	----	----
19	BRN	GND	Ground for climate control unit (G503)	With vehicle in ON mode: less than 0.2 V
20	BRN	TEVA	Detects evaporator temperature sensor signal	With vehicle in ON mode: about 1.0-4.0 V (depending on evaporator temperature)
21	BLU	TAM	Detects outside air temperature sensor signal	With vehicle in ON mode: about 1.0-4.0 V (depending on outside air temperature)

*1: USA and Canada models*2: Mexico models*3: Without touch screen *4: Except'19-21without automatic wiper

Cavity	Wire color	Terminal name	Description	Signal
22 *4	PUR	TSUN	Detects sunlight sensor signal	With vehicle in ON mode and no sunlight or the sensor covered up: 3.56 V With vehicle in ON mode and sunlight on the sensor: less than 3.56 V
23	YEL	HUM DATA	Humidity/in-car temperature sensor communication signal	With vehicle in ON mode: pulses
24	GRN	HUM CLK	Humidity/in-car temperature sensor communication signal	With vehicle in ON mode: pulses
25 *1	BRN	THERMAL PRT	Outputs A/C on/off signal	With vehicle in ON mode, normal A/C pressure, and A/C switch ON: less than 0.2 V With vehicle in ON mode, normal A/C pressure, and A/C switch OFF: battery voltage
25 *2	RED	ACS	Outputs A/C on/off signal	With vehicle in ON mode, normal A/C pressure, and A/C switch ON: less than 0.2 V With vehicle in ON mode, normal A/C pressure, and A/C switch OFF: battery voltage
26	Not used	Not used	----	----
27 *3	BLU	A/C SO	Outputs display data to HVAC display unit	With vehicle in ON mode: pulses
28 *3	PNK	A/C CLK	Inputs clock signal from HVAC display unit	With vehicle in ON mode: pulses

*1: USA and Canada models*2: Mexico models*3: Without touch screen *4: Except'19-21without automatic wiper

Climate Control Unit Connector for Inputs and Outputs

Courtesy of HONDA, U.S.A., INC.

CONNECTOR B

Cavity	Wire color	Terminal name	Description	Signal
1	BLK	S 5V	Outputs sensor 5 V	With vehicle in ON mode: about 5.0 V
2	Not used	Not used	----	----
3	Not used	Not used	----	----
4	YEL	BLOWER G	Outputs power transistor gate voltage	With vehicle in ON mode and fan control button OFF: less than 0.2 V With vehicle in ON mode and fan control button ON: about 4.0 V-battery voltage (depending on blower motor control)
5	BLU	BLOWER V	Feedback signal of power transistor drain voltage	With vehicle in ON mode: about 0 V-battery voltage (depending on blower motor speed)
6	GRY	ILLUMI+	Power source for illumination	With combination light switch ON: battery voltage
7	Not used	Not used	----	----
8	Not used	Not used	----	----
9	BRN	RR DEF RLY CL-	Signal for rear window defogger relay	With vehicle in ON mode and rear window defogger/mirror defogger button ON: less than 0.2 V With vehicle in ON mode and rear window defogger/mirror defogger button OFF: battery voltage

Cavity	Wire color	Terminal name	Description	Signal
10	RED	SENSOR COM	Sensor ground	With vehicle in ON mode: less than 0.2 V
11	Not used	Not used	----	----
12	BLU	ILL-(LED)	Detects illumination control signal	With combination light switch ON: changed voltage (depending on dashlights brightness controller)