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Home >> Acura >> 2023 >> Integra Base, Standard Trans >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> HVAC System - Troubleshooting >> Connector View >> Climate Control Unit Connector for Inputs and Outputs
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Climate Control Unit Connector for Inputs and Outputs

Connector Index
Climate Control Unit Connector A (28P)
Climate Control Unit Connector B (24P)

Climate Control Unit Connector A (28P) (female terminals) 

GHH655374Courtesy of HONDA, U.S.A., INC.
Terminal Number Terminal Name Description
1 Not used ---
2 Not used ---
3 Not used ---
4 RR_DEF_RLY_CL- Signal for rear window defogger relay
5 SOL_IN Outputs to A/C compressor variable capacity control solenoid
6 *1 HUM_DATA Humidity/in-car temperature sensor communication signal
7 *2 TR Detects in-car temperature sensor signal
8 *3 TSUN Detects sunlight sensor signal
9 Not used ---
10 *1*4 DEF_SW2 Signal for window defrost switch 2
11 Not used ---
12 GND Ground for climate control unit (G015)
13 BB-CAN_L B-CAN communication signal
14 IG2_OPTION IG2 power source
15 Not used ---
16 Not used ---
17 Not used ---
18 Not used ---
19 SOL_OUT Detects feedback signal of A/C compressor variable capacity control solenoid
20 SENSOR_COM Sensor ground
21 *1 HUM_CLK Humidity/in-car temperature sensor communication signal
22 TAM Detects outside air temperature sensor signal
23 *1 S_5V Outputs sensor 5 V
24 BUS-DATA Communication signal
25 Not used ---
26 Not used ---
27 BB-CAN_H B-CAN communication signal
28 *1*4 DEF_SW1 Signal for window defrost switch 1

*1: With auto idle stop system*2: Without auto idle stop system*3: With automatic wiper*4:'25

Climate Control Unit Connector B (24P) (female terminals) 

GHH655375Courtesy of HONDA, U.S.A., INC.
Terminal Number Terminal Name Description
1 Not used ---
2 Not used ---
3 TEVA Detects evaporator temperature sensor signal
4 MDD-P Detects potentiometer signal of mode control motor (door position)
5 * AMD-P-AS Detects potentiometer signal of passenger's air mix control motor (door position)
6 Not used ---
7 Not used ---
8 BLW-V Feedback signal of power transistor drain voltage
9 M-VENT Outputs to drive mode control motor to VENT side
10 M-REC Outputs to drive recirculation control motor to RECIRCULATE side
11 * M-HOT-AS Outputs to drive passenger's air mix control motor to HOT side
12 M-HOT-DR Outputs to drive (driver's) * air mix control motor to HOT side
13 Not used ---
14 Not used ---
15 S5V Outputs sensor 5 V
16 AMD-P-DR Detects potentiometer signal of (driver's) * air mix control motor (door position)
17 RFD-P Detects potentiometer signal of recirculation control motor (door position)
18 Not used ---
19 SENS-COM Sensor ground
20 BLW-G Outputs power transistor gate voltage
21 M-DEF Outputs to drive mode control motor to DEF side
22 M-FRS Outputs to drive recirculation control motor to FRESH side
23 * M-COOL-AS Outputs to drive passenger's air mix control motor to COOL side
24 M-COOL-DR Outputs to drive (driver's) * air mix control motor to COOL side

*: With dual zone climate control