Heating, Ventilation and Air Conditioning Control Module Scan Tool Information
HVAC Control Module Scan Tool Data Parameters
| Parameter | System State | Expected Value | Description |
|---|---|---|---|
| Operating Conditions: Engine ON | |||
| A/C Requested | - | No | The scan tool displays Yes or No. Yes is displayed if the air conditioning is requested. |
| Air Inlet Dr Actual | - | Varies | This displays Volts. This is the current numeric value of the air inlet door as monitored by the HVAC module. |
| Air Inlet Dr Actual Commanded | - | Varies | This displays Volts. This is the current numeric value of the air inlet door as commanded by the HVAC module. |
| Commanded Blower | - | Varies | This displays percent. This is the percentage of power supplied to the blower motor. |
| Coolant Temperature | - | Varies | This displays °C (°F). This is the current temperature of the engine coolant. |
| Driver Heated Seat | - | Off | The scan tool displays On or Off. This is the current state of the driver heated seat. |
| Driver Program Number | - | Varies | This displays Counts. |
| Inside Air Temp. | - | Varies | This displays °C (°F). This is the current temperature of the vehicle interior. |
| Left AC Duct Temp. | - | Varies | This displays Counts. This is the numeric value of the left A/C duct temperature as commanded by the HVAC module. |
| Left Duct Temp. Desired | - | Varies | This displays Counts. This is the numeric value of the left duct temperature as commanded by the HVAC module. |
| Left Htr. Duct Temp. | - | Varies | This displays Counts. This is the numeric value of the left duct temperature door as reported to the HVAC module. |
| Left Solar | - | Varies | This displays Counts. This is an approximate value at the left sunload sensor. |
| Left Temp Dr Actual | - | Varies | This displays Volts. This is the current voltage of the driver temperature door as monitored by the HVAC module. |
| Left Temp. Dr. Commanded | - | Varies | This displays Volts. This is the voltage of the driver temperature door commanded by the HVAC module. |
| Mode Dr. Motor Command | - | Varies | This displays Volts. This is the voltage of the mode door commanded by the HVAC module. |
| Mode Door Position | - | Varies | This displays Counts or Volts. This is the actual voltage of the mode door reported the HVAC module. |
| Outside Air Temp. | - | Varies | This displays °C (°F). This is the raw value of the outside air temperature. |
| Passenger Heated Seat | - | Off | The scan tool displays On or Off. This is the current state of the passenger heated seat. |
| Psgr. Program Number | - | Varies | This displays Counts. |
| Remote Start Request | - | Disabled | The scan tool displays Enabled or Disabled. |
| Right AC Duct Temp. | - | Varies | This displays Counts. This is the numeric value of the right A/C duct temperature as commanded by the HVAC module. |
| Right Duct Temp. Desired | - | Varies | This displays Counts. This is the numeric value of the right duct temperature as commanded by the HVAC module. |
| Right Htr. Duct Temp. | - | Varies | This displays Counts. This is the numeric value of the right duct temperature door as reported to the HVAC module. |
| Right Solar | - | Varies | This displays Counts. This is an approximate value at the right sunload sensor. |
| Right Temp Dr Actual | - | Varies | This displays Volts. This is the current voltage of the passenger temperature door as monitored by the HVAC module. |
| Right Temp. Dr. Commanded | - | Varies | This displays Volts. This is the voltage of the passenger temperature door commanded by the HVAC module. |
| Selected Air Mode | - | Varies | The scan tool displays Auto; Upper; Bi-Level; Heat/Defrost; Defrost; Off or N/A. This displays the current air delivery mode commanded by the HVAC control module. |
| System Program Number | - | Varies | This displays Counts. |
| Vehicle Speed Signal | - | 0 mph | This displays the current vehicle speed in MPH. |
HVAC Control Module Scan Tool Output Controls
| 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. |
| Air Inlet Door | The scan tool displays On or Off selections. The selection drives the actuator to its minimum or maximum positions. |
| All Status LEDs | All HVAC status LEDs illuminate when ON is selected and turn off when OFF is selected. |
| Blower Motor | The scan tool displays Off or On selections. This function allows you to command the blower motor to its maximum or minimum speeds. |
| Left Temp. Door Position | The scan tool displays On or Off selections. The selection drives the actuator to its minimum or maximum positions. |
| Mode Door Position | The scan tool displays On or Off selections. The selection drives the actuator to its minimum or maximum positions. |
| Recalibrate All Motors | When ON is selected, all air temp and mode actuators have the capability to perform a recalibration. |
| Right Temp. Door Position | The scan tool displays On or Off selections. The selection drives the actuator to its minimum or maximum positions. |
| Segment Check | The scan tool displays On or Off selections. Selecting ON activates all display segments and lamps in the HVAC control. |
| Temp. Door Position | The scan tool displays On or Off selections. The selection drives the actuator to its minimum or maximum positions. |