Electrical Specification
| Terminal No. | Content | Measuring condition | Standard | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| A1 ←→ Chassis ground | Ignition power supply | Ignition switch: ON | Battery voltage | ||||||||
| A2 | CAN-H (CAN communication line) | Measurement load (digital signal) | - | ||||||||
| A3 | CAN-L (CAN communication line) | Measurement load (digital signal) | - | ||||||||
| A4 ←→ Chassis ground | Ground | Always | 0 V | ||||||||
| A5 ←→ Chassis ground | Driver's side seat heater temperature sensor(4) | Ignition switch: ON Varies depending on temperature at seat heater |
0 - 5 V | ||||||||
| A6 ←→ Chassis ground | Mode door actuator position signal | Ignition switch: ON Mode door FACE position |
4 V | ||||||||
| Ignition switch: ON Mode door DEF position |
1 V | ||||||||||
| A7 ←→ Chassis ground | Mode servo drive signal (FACE) | When turning towards FACE side: A7 is 12 V, B18 is GND | While operating: 12 V While not operating: 0 V |
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| A8 ←→ Chassis ground | Battery power supply | Always | Battery voltage | ||||||||
| A9 | - | - | - | ||||||||
| A10 | - | - | - | ||||||||
| A11 ←→ Chassis ground | Air mix door actuator drive signal (HOT)(1) or air mix door actuator (driver's seat) drive signal (HOT)(2) | Turning towards HOT side: A11 is 12 V, A21 is GND | While operating: 12 V While not operating: 0 V | ||||||||
| A12 ←→ Chassis ground | Each potentiometer and sensor power supply | Ignition switch: ON | 5 V | ||||||||
| A13 | - | - | - | ||||||||
| A14 ←→ Chassis ground | Passenger's side seat heater temperature sensor(4) | Ignition switch: ON Varies depending on temperature at seat heater |
0 - 5 V | ||||||||
| A15 ←→ Chassis ground | Rear vent actuator position signal(3) | Ignition switch: ON Air mix door: Maximum cool position |
1.8 V | ||||||||
| Ignition switch: ON Air mix door: Maximum hot position |
4.1 V | ||||||||||
| A16 ←→ Chassis ground | Air mix door actuator (passenger's side) position signal(2) | Ignition switch: ON Air mix door: Maximum cool position |
4 V | ||||||||
| Ignition switch: ON Air mix door: Maximum hot position |
1 V | ||||||||||
| A17 ←→ Chassis ground | Air mix door position signal(1) or air mix door (driver's side) position signal(2) | Ignition switch: ON Air mix door: Maximum cool position |
4 V | ||||||||
| Ignition switch: ON Air mix door: Maximum hot position |
1 V | ||||||||||
| A18 ←→ Chassis ground | Mode servo drive signal (DEF) | When turning towards DEF side: A18 is 12 V, A7 is GND | While operating: 12 V While not operating: 0 V |
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| A19 | - | - | - | ||||||||
| A20 ←→ Chassis ground | ACC power supply | Ignition switch: ACC | Battery voltage | ||||||||
| A21 ←→ Chassis ground | Air mix door actuator drive signal (COOL)(1) or air mix door actuator (driver's side) drive signal (COOL)(2) | Turning towards COOL side: A21 is 12 V, A11 is GND | While operating: 12 V While not operating: 0 V | ||||||||
| A22 ←→ Chassis ground | After-evaporator sensor signal | Ignition switch: ON Varies depending on temperature after the evaporator |
1 - 4.5 V | ||||||||
| A23 ←→ Chassis ground | In-vehicle sensor signal | Ignition switch: ON | 25°C (77°F): Approx. 1.5 V 40°C (104°F): Approx. 1.0 V |
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| A24 ←→ Chassis ground | Pressure sensor signal | Ignition switch: ON | 0.5 - 4.9 V | ||||||||
| A25 ←→ Chassis ground | Sunload sensor signal Ignition switch: ON (0 | V: No sunload) | 0 - 4.9 V | ||||||||
| A26 ←→ Chassis ground | Flow sensor signal | Ignition switch: ON | 0.3 - 4.7 V | ||||||||
| B1 ←→ Chassis ground | Driver's side seat heater control(4) | Ignition switch: ON Seat heater switch: ON |
0 V or battery voltage | ||||||||
| B2 ←→ Chassis ground | Seat heater (driver's side) GND(4) | Always | Less than 0.5 V | ||||||||
| B3 ←→ Chassis ground | Blower motor voltage feedback(2) | Ignition switch: ON Blower switch: ON |
0.45 - 10 V | ||||||||
| B4 ←→ Chassis ground | Blower motor control signal(2) | Ignition switch: ON Blower switch: ON |
9.05 V | ||||||||
| B5 ←→ Chassis ground | Passenger's side seat heater control(4) | Ignition switch: ON Seat heater switch: ON |
0 V or battery voltage | ||||||||
| B6 ←→ Chassis ground | Seat heater (passenger's side) GND(4) | Always | Less than 0.5 V | ||||||||
| B7 ←→ Chassis ground | Intake door actuator drive signal (RECIRC) | Intake door actuator operating on the RECIRC side | 0.7 V or less | ||||||||
| B8 ←→ Chassis ground | Variable compressor solenoid valve | Ignition switch: ON Blower switch: ON A/C switch: ON |
2 - 12 V | ||||||||
| B9 | - | - | - | ||||||||
| B10 | - | - | - | ||||||||
| B11 | A/C control panel communication | Measurement load (digital signal) | - | ||||||||
| B12 | A/C control panel communication | Measurement load (digital signal) | - | ||||||||
| B13 ←→ Chassis ground | Heater main relay drive signal(2) | Ignition switch: ON Blower switch: ON |
0.7 V or less | ||||||||
| B14 | - | - | - | ||||||||
| B15 ←→ Chassis ground | Air mix door actuator (passenger's side) drive signal (HOT)(2) | Turning towards HOT side: B14 is 12 V, B15 is GND | While operating: 12 V While not operating: 0 V |
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| B16 ←→ Chassis ground | Air mix door actuator (passenger's side) drive signal (COOL)(2) | Turning towards COOL side: B15 is 12 V, B14 is GND | While operating: 12 V While not operating: 0 V |
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| B17 ←→ Chassis ground | Intake door actuator drive signal (FRESH) | Intake door actuator operating on the FRESH side | 0.7 V or less | ||||||||
| B18 ←→ Chassis ground | Sensor GND | Always | Less than 0.5 V | ||||||||
| B19 | - | - | - | ||||||||
| B20 | - | - | - | ||||||||
| B21 | - | - | - | ||||||||
| B22 | - | - | - | ||||||||
| B23 ←→ Chassis ground | Rear vent actuator drive signal (HOT)(3) | Turning towards HOT side: B22 is 12 V, B23 is GND | While operating: 12 V While not operating: 0 V |
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| B24 ←→ Chassis ground | Rear vent actuator drive signal (COOL)(3) | Turning towards COOL side: B23 is 12 V, B22 is GND | While operating: 12 V While not operating: 0 V |
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