| Table 1: | HVAC Control Module Scan Tool Data Parameters |
| Table 2: | HVAC Control Module Scan Tool Output Controls |
Parameter | System State | Expected Value | Description |
|---|---|---|---|
Operating Conditions: Ignition ON, HVAC OFF | |||
A/C Request | -- | No | The scan tool displays Yes or No. Yes is displayed if the air conditioner is requested. |
Ambient Air Temp. Sensor | -- | Varies | This displays °F (°C). This is the current temperature at the ambient air temperature sensor. |
Ambient Light Sensor | -- | Varies | This displays Counts. This is the current ambient light measured in counts at the ambient light sensor. |
Blower Motor Speed | -- | 0% | This displays %. This is the actual blower motor speed measured in percentage. |
Blower Motor Speed Command | -- | 0% | This displays %. This is the commanded blower motor speed measured in percentage. |
Compressor Clutch Status | -- | Off | This displays Off or Auto. This is the status when the A/C is commanded Off or if the HVAC control module is automatically controlling the A/C compressor clutch. |
Driver Program Number | -- | Varies | This displays Counts. This is the driver program number measured in counts. |
Driver Temp. Dr. Cal. Range | -- | Varies | This displays Pulses. This is the driver temperature door calibration range measured in pulses. |
Driver Temp. Dr. Motor Command | -- | Varies | This displays Counts. This is the commanded driver temperature door motor request measured in counts. |
Driver Temp. Dr. Position | -- | Varies | This displays Counts or Pulses. This is the current driver temperature door position measured in either counts or pulses. |
Inside Air Temp. Sensor | -- | Varies | This displays °F (°C). This is the current temperature at the inside air temperature sensor. |
LED Intensity | -- | Varies | This displays Counts. This is the light emitting diode (LED) intensity measured in counts. |
Left Sunload Sensor | -- | Varies | This displays Counts. This is the current sunload measured in counts at the driver sunload sensor. |
Load Management Status | -- | Off | The scan tool displays On or Off. This is the status of the load management. |
Lower Left Duct Temp. Sensor | -- | Varies | This displays Counts. This is the current temperature at the driver lower duct temperature sensor measured in counts. |
Lower Right Duct Temp. Sensor | -- | Varies | This displays Counts. This is the current temperature at the passenger lower duct temperature sensor measured in counts. |
Mode Door Position | -- | Varies | This displays Counts or Pulses. This is the current mode door position measured in either counts or pulses. |
Mode Dr. Cal. Range | -- | Varies | This displays Pulses. This is the mode door calibration range measured in pulses. |
Mode Dr. Motor Command | -- | Varies | This displays Counts. This is the commanded mode door motor request measured in counts. |
Mode Status | -- | Off | The scan tool displays Off, Auto, Heater, Bi-Level, Defog, Defrost or Mid. This is the current mode of the HVAC system. |
Psgr. Program Number | -- | Varies | This displays Counts. This is the passenger program number measured in counts. |
Psgr. Temp. Dr. Cal. Range | -- | Varies | This displays Pulses. This is the passenger temperature door calibration range measured in pulses. |
Psgr. Temp. Dr. Motor Command | -- | Varies | This displays Counts. This is the commanded passenger temperature door motor request measured in counts. |
Psgr. Temp. Dr. Position | -- | Varies | This displays Counts or Pulses. This is the current passenger temperature door position measured in either counts or pulses. |
Recirculation Temp. Dr. Cal. Range | -- | Varies | This displays Pulses. This is the recirculation temperature door calibration range measured in pulses. |
Recirculation Temp. Dr. Motor Command | -- | Varies | This displays Counts. This is the commanded recirculation temperature door motor request measured in counts. |
Recirculation Temp. Dr. Position | -- | Varies | This displays Counts or Pulses. This is the current recirculation temperature door position measured in either counts or pulses. |
Right Sunload Sensor | -- | Varies | This displays Counts. This is the current sunload measured in counts at the passenger sunload sensor. |
Upper Left Duct Temp. Sensor | -- | Varies | This displays Counts. This is the current temperature at the driver upper duct temperature sensor measured in counts. |
Upper Right Duct Temp. Sensor | -- | Varies | This displays Counts. This is the current temperature at the passenger upper duct temperature sensor measured in counts. |
Valet Switch | -- | Inactive | The scan tool displays Active or Inactive. This is the state of the valet switch. |
Vehicle Speed | -- | 0 km/h (0 mph) | This displays km/h (mph). This is the current vehicle speed. |
Output Control | Description |
|---|---|
Afterblow Option | When afterblow is activated the scan tool displays an *. |
Blower Motor | The scan tool displays Off or On selections. This function allows you to command the blower motor to its maximum (100%) or minimum (0%) speeds for 5 seconds. |
Compressor Clutch | The scan tool displays the A/C compressor clutch status: Engage or Disengage. This function allows you to command the A/C compressor clutch On and Off. |
Driver Temp. Door | The scan tool displays On or Off selections. The selection drives the actuator to its minimum (cold) or maximum (hot) positions for 20 seconds. |
Instant OAT Update | The scan tool displays Commanded State: On or Off. This function updates the HVAC control module ambient air temperature input to the current raw value. |
Mode Door Position | The scan tool displays On or Off selections. This function drives the actuator to its minimum (defrost) or maximum (upper) positions for 20 seconds. |
Passenger Temp. Door | The scan tool displays On or Off selections. The selection drives the actuator to its minimum (hot) or maximum (cold) positions for 20 seconds. |
Recalibrate All Motors | When commanded the scan tool displays the actuators counts moving from hot to cold until the re-cal is complete. |
Recirculation Door | The scan tool displays On or Off selections. This function drives the actuator to its minimum (outside air) or maximum (recirculate) stops for 20 seconds. |
