Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSSUBARU2022IMPREZA BASE, 4D SEDAN, AUTOMATIC CVT TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 24 (HVAC SYSTEM (DIAGNOSTICS) (HEV))CONTROL MODULE I/O SIGNALELECTRICAL SPECIFICATIONHEAT PUMP CONTROL MODULE
2022 Subaru Impreza Base, 4D Sedan, Automatic CVT Trans
Heat Pump Control Module
2022 Subaru Impreza Base, 4D Sedan, Automatic CVT TransSECTION Heat Pump Control Module
WARNING: This page is about a different car, the 2022 Subaru Crosstrek. However, it is still accessible from the selected car via links, so may be relevant.
| Terminal No. | Contents | Measuring condition | Standard |
|---|---|---|---|
| (i365) No. 1 | - | - | - |
| (i365) No. 2 (+) ←→ Chassis ground (-) | High pressure solenoid valve drive | Ignition switch: ON High pressure solenoid valve: ON | Closed: Battery voltage Open: 0.7 V or less |
| (i365) No. 3 | - | - | - |
| (i365) No. 4 | - | - | - |
| (i365) No. 5 | - | - | - |
| (i365) No. 6 (+) ←→ Chassis ground (-) | Discharge temperature sensor (interior condenser IN side) | Ignition switch: ON | 0.2 - 4.8 V |
| (i365) No. 7 (+) ←→ Chassis ground (-) | Interior condenser outlet temperature sensor | Ignition switch: ON | 0.2 - 4.8 V |
| (i365) No. 8 (+) ←→ Chassis ground (-) | Exterior condenser outlet temperature sensor | Ignition switch: ON | 0.2 - 4.8 V |
| (i365) No. 9 (+) ←→ Chassis ground (-) | Evaporator outlet temperature sensor | Ignition switch: ON | 0.2 - 4.8 V |
| (i365) No. 10 (+) ←→ Chassis ground (-) | GND2 | Always | Less than 0.5 V |
| (i365) No. 11 | LIN communication (A/C control panel) | Cannot be measured (digital signal) | - |
| (i365) No. 12 | - | - | - |
| (i365) No. 13 | - | - | - |
| (i365) No. 14 (+) ←→ Chassis ground (-) | GND | Always | Less than 0.5 V |
| (i365) No. 15 | Heating expansion valve A phase Ch2 | Cannot be measured (digital signal) | - |
| (i365) No. 16 | Heating expansion valve A phase Ch1 | Cannot be measured (digital signal) | - |
| (i365) No. 17 | - | - | - |
| (i365) No. 18 | Cooling expansion valve A phase Ch2 | Cannot be measured (digital signal) | - |
| (i365) No. 19 | Cooling expansion valve A phase Ch1 | Cannot be measured (digital signal) | - |
| (i365) No. 20 (+) ←→ Chassis ground (-) | Ignition power supply | Ignition switch: ON | Battery voltage |
| (i365) No. 21 | - | - | - |
| (i365) No. 22 | - | - | - |
| (i365) No. 23 (+) ←→ Chassis ground (-) | Low pressure solenoid valve drive | Ignition switch: ON Low pressure solenoid valve: ON | Closed: 12 V Open: 0 V |
| (i365) No. 24 | - | - | - |
| (i365) No. 25 | - | - | - |
| (i365) No. 26 | - | - | - |
| (i365) No. 27 | - | - | - |
| (i365) No. 28 | - | - | - |
| (i365) No. 29 | - | - | - |
| (i365) No. 30 (+) ←→ Chassis ground (-) | Sensor GND2 | Always | Less than 0.5 V |
| (i365) No. 31 | - | - | - |
| (i365) No. 32 | - | - | - |
| (i365) No. 33 | - | - | - |
| (i365) No. 34 (+) ←→ Chassis ground (-) | Sensor GND | Always | Less than 0.5 V |
| (i365) No. 35 | Heating expansion valve B phase Ch1 | Cannot be measured (digital signal) | - |
| (i365) No. 36 | Heating expansion valve B phase Ch2 | Cannot be measured (digital signal) | - |
| (i365) No. 37 | - | - | - |
| (i365) No. 38 | Cooling expansion valve B phase Ch1 | Cannot be measured (digital signal) | - |
| (i365) No. 39 | Cooling expansion valve B phase Ch2 | Cannot be measured (digital signal) | - |
| (i365) No. 40 (+) ←→ Chassis ground (-) | Battery power supply | Always | Battery voltage |
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.