Climate Control Unit Connector for Inputs and Outputs
WARNING: This page is about a different car, the 2022 Honda Accord, 2021 Honda Accord, 2020 Honda Accord, 2019 Honda Accord, and 2018 Honda Accord. However, it is still accessible from the selected car via links, so may be relevant.
| Connector Index |
|---|
| Climate Control Unit Connector A (32P) |
| Climate Control Unit Connector B (24P) |
Climate Control Unit Connector A (32P) (female terminals)
| Cavity | Terminal name | Description | Signal |
|---|---|---|---|
| 1 | Not used | ---- | ---- |
| 2 | Not used | ---- | ---- |
| 3 | Not used | ---- | ---- |
| 4 | Not used | ---- | ---- |
| 5 | Not used | ---- | ---- |
| 6 | Not used | ---- | ---- |
| 7 | HUM DATA | Humidity/in-car temperature sensor communication signal | With vehicle in ON mode: pulses |
| 8 | B-CAN_L | B-CAN communication signal | With vehicle in ON mode: pulses |
| 9 | Not used | ---- | ---- |
| 10 *1 | 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 |
| 11 | TAM | Detects outside air temperature sensor signal | With vehicle in ON mode: about 1.0-4.0 V (depending on outside air temperature) |
| 12 | SENSOR COM | Sensor ground | With vehicle in ON mode: less than 0.2 V |
| 13 | Not used | ---- | ---- |
| 14 | SOL OUT | Outputs 12 V to A/C compressor variable capacity control solenoid | Variable voltage based on cooling load. With A/C compressor at maximum: battery voltage |
| 15 | Not used | ---- | ---- |
| 16 *2 | +B BACKUP2 SUB | +B BACKUP2 SUB power source | Battery voltage |
| 17 | Not used | ---- | ---- |
| 18 | Not used | ---- | ---- |
| 19 | Not used | ---- | ---- |
| 20 | Not used | ---- | ---- |
| 21 | Not used | ---- | ---- |
| 22 | Not used | ---- | ---- |
| 23 | Not used | ---- | ---- |
| 24 | HUM CLK | Humidity/in-car temperature sensor communication signal | With vehicle in ON mode: pulses |
| 25 | B-CAN_H | B-CAN communication signal | With vehicle in ON mode: pulses |
| 26 | S 5V | Outputs sensor 5 V | With vehicle in ON mode: about 5.0 V |
*1: With automatic wiper or without automatic lighting
*2: With auto idle stop system
| Cavity | Terminal name | Description | Signal |
|---|---|---|---|
| 27 | Not used | ---- | ---- |
| 28 | GND | Ground for climate control unit (G503) | With vehicle in ON mode: less than 0.2 V |
| 29 | BUS-DATA | BUS-DATA communication signal | ---- |
| 30 | SOL IN | Ground for A/C compressor variable capacity control solenoid | With vehicle in ON mode: less than 0.2 V |
| 31 | Not used | ---- | ---- |
| 32 | IG2 A/C | IG2 power source | With vehicle in ON mode: battery voltage |
*1: With automatic wiper or without automatic lighting
*2: With auto idle stop system
Climate Control Unit Connector B (24P) (female terminals)
| Cavity | Terminal name | Description | Signal |
|---|---|---|---|
| 1 | S5V | Outputs sensor 5 V | With vehicle in ON mode: about 5.0 V |
| 2 | AMD-P-DR | Detects potentiometer signal of driver's air mix control motor (door position) | With vehicle in ON mode: about 0.5-4.5 V (depending on driver's air mix control motor position) |
| 3 | AMD-P-AS | Detects potentiometer signal of passenger's air mix control motor (door position) | With vehicle in ON mode: about 0.5-4.5 V (depending on passenger's air mix control motor position) |
| 4 | RFD-P | Detects potentiometer signal of recirculation control motor (door position) | With vehicle in ON mode: about 0.5-3.5 V (depending on recirculation control motor position) |
| 5 | MDD-P-DR | 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) |
| 6 | Not used | ---- | ---- |
| 7 | Not used | ---- | ---- |
| 8 | T-EVA | Detects evaporator temperature sensor signal | With vehicle in ON mode: about 1.0-4.0 V (depending on evaporator temperature) |
| 9 | Not used | ---- | ---- |
| 10 | SENS-COM | Sensor ground | With vehicle in ON mode: less than 0.2 V |
| 11 | BLOWER G | Outputs power transistor gate voltage | With vehicle in ON mode and fan control dial OFF: less than 0.2 V With vehicle in ON mode and fan control dial ON: about 4.0 V-battery voltage (depending on blower motor control) |
| 12 | BLOWER V | Feedback signal of power transistor drain voltage | With vehicle in ON mode: about 0 V-battery voltage (depending on blower motor speed) |
| 13 | 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 |
| 14 | 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 |
| 15 | 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 |
| Cavity | Terminal name | Description | Signal |
|---|---|---|---|
| 16 | 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 |
| 17 | M-REC | Output to drive recirculation control motor to RECIRCULATE side | With vehicle in ON mode and recirculation control motor moving to RECIRCULATE: battery voltage |
| 18 | M-FRS | Output to drive recirculation control motor to FRESH side | With vehicle in ON mode and recirculation control motor moving to FRESH: battery voltage |
| 19 | MODE-VENT-DR | Outputs to drive mode control motor to VENT side | With vehicle in ON mode and mode control motor moving to VENT: battery voltage |
| 20 | M-DEF-DR | Outputs to drive mode control motor to DEF side | With vehicle in ON mode and mode control motor moving to DEF: battery voltage |
| 21 | Not used | ---- | ---- |
| 22 | Not used | ---- | ---- |
| 23 | Not used | ---- | ---- |
| 24 | Not used | ---- | ---- |