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| Table 1: | Heating Ventilation and Air Conditioning Control Module Scan Tool Data Parameters |
| Table 2: | Heating Ventilation and Air Conditioning Control Module Scan Tool Output Controls |
Parameter | System State | Expected Value | Description |
|---|---|---|---|
Operating Conditions: Ignition ON | |||
A/C Compressor Clutch Inhibit Reason | -- | Varies | The scan tool displays the reason why the activation of the A/C compressor is inhibited. |
A/C Compressor Clutch Status | Engine running, A/C Off | Disengaged | The scan tool displays Engaged or Disengaged depending on the state of the A/C compressor. |
Engine running, A/C On | Engaged | ||
A/C Evaporator Temperature Sensor | -- | -40 to +80°C (-40 to + 176°F) | The scan tool displays °C (°F). This is the current temperature at the A/C evaporator temperature sensor. |
A/C High Side Pressure Sensor | -- | Varies | The scan tool displays kPa. This is the current pressure of the A/C refrigerant. |
A/C Indicator | A/C Off | Off | The scan tool displays On or Off depending on the state of the A/C mode. |
A/C On | On | ||
A/C Request Signal | A/C Off | Inactive | The scan tool displays Active or Inactive depending on the state of the A/C mode. |
A/C On | Active | ||
A/C Switch | A/C Switch released | Inactive | The scan tool displays Active or Inactive depending on the state of the A/C switch. |
A/C Switch pressed | Active | ||
Air Recirculation LED | Air recirculation mode is deactivated | Off | The scan tool displays On or Off depending on the state of the Recirculation mode. |
Air recirculation mode is activated | On | ||
Air Recirculation Mode Switch | Air recirculation switch released | Inactive | The scan tool displays Active or Inactive depending on the state of the air recirculation mode switch. |
Air recirculation switch pressed | Active | ||
Ambient Air Temperature (Filtered) | -- | -40 to +80°C (-40 to + 176°F) | The scan tool displays °C (°F). This is the current temperature at the ambient air temperature sensor. |
Air Quality Sensor Indicator | -- | Varies | The scan tool displays On or Off depending on the state of the automatic recirculation switch. |
Air Quality Sensor Switch | -- | Varies | The scan tool displays On or Off depending on the state of the automatic recirculation switch. |
Auto HVAC Button | Auto HVAC button released | Inactive | The scan tool displays On or Off depending on the state of the Auto HVAC button. |
Auto HVAC button pressed | Active | ||
Auto HVAC Indicator | Auto mode is deactivated | Off | The scan tool displays On or Off depending on the state of the Auto mode. |
Auto mode is activated | On | ||
Auxiliary Heater Output Status | -- | OK | The scan tool displays OK or Malfunction. Malfunction is displayed if there is an auxiliary heater malfunction. |
Battery Voltage | -- | 11-14 V | The scan tool displays V. This is the current battery voltage. |
Blower Motor Speed | -- | 0-100% | The scan tool displays % depending on the state of the selected blower motor speed. The value increases stepwise from 0-100% depending the selected speed. |
Blower Motor Speed Command | -- | 0-100% | The scan tool displays % depending on the state of the selected blower motor speed. The value increases stepwise from 0-100% depending the selected speed. |
Blower Motor Switch | -- | Varies | The scan tool displays OFF, 1-8 depending on the state of the selected blower motor speed. |
Desired Left Duct Temperature | -- | Varies | The scan tool displays °C (°F). This is the desired temperature at the left duct temperature sensor. |
Desired Left Temperature | -- | Varies | The scan tool displays °C (°F) depending on the selected left temperature. |
Desired Left Temperature Motor Door Position | -- | Varies | The scan tool displays Counts. This is the desired position of the left temperature actuator. |
Engine Coolant Temperature | -- | -40 to +215°C (-40 to +419°F) | The scan tool displays °C (°F). This is the current engine coolant temperature. |
Enhanced Defrost Indicator | Enhanced defrost mode is deactivated | Off | The scan tool displays On or Off depending on the state of the enhanced defrost mode. |
Enhanced defrost mode is activated | On | ||
Enhanced Defrost Switch | Enhanced defrost switch released | Off | The scan tool displays On or Off depending on the state of the enhanced defrost switch. |
Enhanced defrost switch pressed | On | ||
Floor Mode Indicator | Floor mode is deactivated | Off | The scan tool displays On or Off depending on the state of the floor mode. |
Floor mode is activated | On | ||
Floor Mode Switch | Floor mode switch released | Off | The scan tool displays On or Off depending on the state of the floor mode switch. |
Floor mode switch pressed | On | ||
Front Defrost Indicator | Front defrost mode is deactivated | Off | The scan tool displays On or Off depending on the state of the front defrost mode. |
Front defrost mode is activated | On | ||
Front Defrost Switch | Front defrost switch released | Off | The scan tool displays On or Off depending on the state of the front defrost switch. |
Front defrost switch pressed | On | ||
Front HVAC System Status | -- | Varies | The scan tool displays On or Off depending on the state of the POWER switch. |
HVAC Actuators Supply Voltage | -- | Active | The scan tool displays Active or Inactive. Inactive is displayed if there is a malfunction at the actuators supply voltage circuit. |
Instrument Panel Vents Indicator | Instrument panel vents mode is deactivated | Off | The scan tool displays On or Off depending on the state of the instrument panel vents mode. |
Instrument panel vents mode is activated | On | ||
Instrument Panel Vents Switch | Instrument panel vents switch released | Inactive | The scan tool displays Active or Inactive depending on the state of the instrument panel vents switch. |
Instrument panel vents switch pressed | Active | ||
Left Front Seat Heating Switch | Left front seat heating switch released | Off | The scan tool displays On or Off depending on the state of the left front seat heating switch. |
Left front seat heating switch pressed | On | ||
Left Front Seat Ventilation Switch | Left front seat ventilation switch released | Off | The scan tool displays On or Off depending on the state of the left front seat ventilation switch. |
Left front seat ventilation switch pressed | On | ||
Left Mode Door Motor Direction | -- | Varies | The scan tool displays Stop, Increase or Decrease. During the movement of the door, the scan tool shows Increase or Decrease depending the movement direction. When the position of the door is reached, the scan tool displays Stop. |
Left Temperature Door Motor Calibration Status | -- | Varies | The scan tool displays Not Running, In Progress, Complete or Failed depending the calibration status. |
Left Temperature Door Motor Direction | -- | Varies | The scan tool displays Stop, Increase or Decrease. During the movement of the left temperature door, the scan tool shows Increase or Decrease depending the movement direction. When the selected position of the door is reached, the scan tool displays Stop. |
Left Temperature Door Position | -- | Varies | The scan tool displays Counts. This is the current position of the left temperature actuator. |
Left Temperature Knob Position | -- | Varies | The scan tool displays counts. Only with C67 The value varies between -7 to +7 depending the selected temperature knob position. At the left end position is the value 16 and at the right end position -16. Only with C68 The value varies between -5 to +5 depending the selected temperature knob position. At the left end position is the value 18 and at the right end position -18. |
Lower Left Duct Temperature Sensor | -- | -40 to +80°C (-40 to + 176°F) | The scan tool displays °C (°F). This is the current temperature at the lower left duct temperature sensor. |
Mode Door Motor Calibration Status | -- | Varies | The scan tool displays Not Running, In Progress, Complete or Failed depending the calibration status. |
Mode Switch | -- | Varies | The scan tool displays Up or Inactive depending on the state of the mode switch. |
Odour Sensor | - | 5-95% | The scan tool displays %. The value increases with the increasing of the pollution of the ambient air. |
Passenger Compartment Air Temperature (Filtered Data) | -- | -40 to +80°C (-40 to + 176°F) | The scan tool displays °C (°F). This is the current temperature at the passenger compartment air temperature sensor. |
Passenger Compartment Air Temperature (Unfiltered Data) | -- | -40 to +80°C (-40 to + 176°F) | The scan tool displays °C (°F). This is the current temperature at the passenger compartment air temperature sensor. |
Passenger Compartment Humidity | - | 3-100% | The scan tool displays %. This is the current relative humidity level at the windscreen temperature and inside moisture sensor. |
Passenger Compartment Humidity Sensor Temperature | -- | -40 to +80°C (-40 to + 176°F) | The scan tool displays °C (°F). This is the current temperature at the humidity sensing element temperature sensor. |
Rear Demister Indicator | Rear defogger is deactivated | Off | The scan tool displays On or Off depending on the state of the rear defogger. |
Rear defogger is activated | On | ||
Rear Defogger Status | Rear defogger is deactivated | Off | The scan tool displays On or Off depending on the state of the rear defogger. |
Engine running/Rear demister is activated | On | ||
Rear Defogger Switch | Rear defogger switch released | Inactive | The scan tool displays Active or Inactive depending on the state of the rear defogger switch. |
Rear defogger switch pressed | Active | ||
Recirculation Door Motor Direction | Air recirculation mode is deactivated | Outside Air | The scan toll displays Stop, Outside Air, Increase, Recirculation, Decrease or Not Used depending on the state of the recirculation door. During the movement of the door, the scan tool shows Increase or Decrease depending the movement direction. |
Air recirculation mode is activated | Recirculation | ||
Right Front Seat Heating Switch | Right front seat heating switch released | Inactive | The scan tool displays Active or Inactive depending on the state of the right front seat heating switch. |
Right front seat heating switch pressed | Active | ||
Right Front Seat Ventilation Switch | Right front seat ventilation switch released | Inactive | The scan tool displays Active or Inactive depending on the state of the right front seat ventilation switch. |
Right front seat ventilation switch pressed | Active | ||
Sun Azimuth | -- | 0-90° | The scan tool displays °. This is the current angle in the horizontal plane between the sun and the vehicle driving direction. |
Sun Elevation | -- | 0-360° | The scan tool displays °. This is the current angle in the vertical sun height. |
Sunload | -- | 0-1 200 W/m² | The scan tool displays W/m². This is the current sun heat intensity. |
Upper Left Duct Temperature Sensor | -- | -40 to +80°C (-40 to + 176°F) | The scan tool displays °C (°F). This is the current temperature at the upper left duct temperature sensor. |
Windscreen Temperature | -- | -40 to +80°C (-40 to + 176°F) | The scan tool displays °C (°F). This is the current temperature at the windscreen temperature sensor. |
Output Control | Description |
|---|---|
A/C Indicator | The HVAC control module illuminates the A/C indicator when commanded from the scan tool. |
A/C Switch | This control function simulates the state of the A/C switch. |
Air Recirculation LED Command | The HVAC control module illuminates the Air Recirculation indicator when commanded from the scan tool. |
Air Recirculation Mode Switch | When On is selected, the HVAC control module commands the air recirculation door from outside air to recirculation. When Off is selected, the HVAC control module commands the air recirculation door from recirculation to outside air. |
Auto HVAC Indicator | The HVAC control module illuminates the Auto indicator when commanded from the scan tool. |
Auxiliary Heater Request | When On is selected, the HVAC control module sends a request signal to the auxiliary heater. |
Blower Motor Switch | This control function simulates the state of the blower motor switch. |
Enhanced Defrost Indicator | The HVAC control module illuminates the enhanced defrost indicator when commanded from the scan tool. |
Floor Mode Indicator | The HVAC control module illuminates the floor mode indicator when commanded from the scan tool. |
Front Defrost Indicator | The HVAC control module illuminates the front defrost indicator when commanded from the scan tool. |
HVAC Actuators | The HVAC control module executes the Motor Learn Routine when commanded from the scan tool. |
HVAC Afterblow Configuration | This control function disables and enables the afterblow configuration. |
Instrument Panel Vents Indicator | The HVAC control module illuminates the instrument panel vents indicator when commanded from the scan tool. |
Left Temperature Door Motor Direction | When Increase is selected, the left temperature door position increases stepwise. When Decrease is selected, the left temperature door position decreases stepwise. |
Left Temperature Door Position | This commands the left temperature door position from Cold to Hot. |
Mode Door Motor Command | The HVAC control module commands the mode actuator stepwise from defrost to floor and back again. |
Mode Door Position | When Floor is selected, the HVAC control module commands the mode actuator to the floor position. When Defrost is selected, the HVAC control module commands the actuator to the defrost position. |
Rear Defog | The HVAC control module commands the rear defogger On and Off. |
Rear Demister Indicator | The HVAC control module commands the rear demister indicator On and Off. |
Recirculation Door | The HVAC control module commands the recirculation actuator stepwise from outside air to recirculation and back again. |
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