Table 1: | HVAC Control Module Scan Tool Data Parameters |
Table 2: | HVAC Control Module Scan Tool Output Controls |
Parameter | System State | Expected Value | Definition |
---|---|---|---|
Operating Conditions: Engine ON | |||
A/C Refrigerant Pressure | -- | Varies | The scan tool displays MPaG. This is the current refrigerant pressure. |
Engine Coolant Temp. | -- | Varies | The scan tool displays °C or °F. This is the current engine coolant temperature. |
Evaporator Temp. | -- | Varies | The scan tool displays °C or °F. This is the current evaporator temperature. |
Outside Air Temp | -- | Varies | The scan tool displays °C or °F. This is the current outside air temperature. |
Outside Air Temp. Filtered | -- | Varies | The scan tool displays °C or °F. This is the current filtered outside air temperature. |
Pressure Regulator Sol. | -- | Varies | The scan tool displays Amps. This is the current of the pressure regulator solenoid. |
Scan Tool Output Control | Description |
---|---|
A/C Request | This command allows you to turn the A/C relay On and Off. When the A/C relay is commanded On, the A/C compressor clutch should be engaged. |
Blower Motor | When On is selected, the HVAC control module commands the blower motor relay On and a command to increase or decrease air. When Off is selected, the HVAC control module commands the blower motor relay Off. |