K33 HVAC Control Module: Scan Tool Information
WARNING: This page is about a different car, the 2018 Buick Envision. However, it is still accessible from the selected car via links, so may be relevant.
Heating Ventilation and Air Conditioning Control Module Scan Tool Data Parameters
| Parameter | System State | Expected Value | Description |
|---|---|---|---|
| Operating Conditions: Ignition ON/Vehicle in Service Mode | |||
| A/C Button/Switch | A/C Button released | Inactive | The scan tool displays Active or Inactive depending on the state of the A/C switch. |
| A/C Button pressed | Active | ||
| A/C Compressor Refrigerant Solenoid Valve Command | - | 0 - 100% | The scan tool displays % depending on the command for compressor displacement. The value increases stepwise from 0 - 100% depending on the command/request. |
| 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 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 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 | ||
| Air Inlet Door Actuator Command | - | Varies | The scan tool displays Counts. This is the desired position of the actuator. |
| Air Inlet Door Actuator Direction | - | Stop | 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 on the movement direction. |
| Air Inlet Door Actuator Learn Status | - | Complete | The scan tool displays Not Running, In Progress, Complete, or Failed depending on the actuator calibration status. |
| Air Inlet Door Actuator Position | - | Varies | The scan tool displays Counts. This is the actual position of the actuator. |
| Air Quality Sensor / Odor (AQS) Button/Switch | Button released | Inactive | The scan tool displays Active or Inactive depending on the state of the A/C switch. |
| Button pressed | Active | ||
| Air Quality / Odor (AQS) Sensor | - | Varies | The scan tool displays counts. The value increases with the increasing of the pollution of the ambient air. |
| Air Quality Sensor / Odor (AQS) Indicator | AQS Off | Off | The scan tool displays On or Off depending on the state of the AQS indicator command |
| AQS On | On | ||
| Air Recirculation Button/Switch | Button released | Inactive | The scan tool displays Active or Inactive depending on the state of the air recirculation mode switch. |
| Button pressed | Active | ||
| Air Recirculation Door Actuator Command | - | Varies | The scan tool displays Counts. This is the desired position of the actuator. |
| Air Recirculation Door Actuator Direction | - | Stop | 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 on the movement direction. |
| Air Recirculation Door Actuator Learn Status | - | Complete | The scan tool displays Not Running, In Progress, Complete, or Failed depending on the actuator calibration status. |
| Air Recirculation Door Actuator Position | - | Varies | The scan tool displays Counts. This is the actual position of the actuator. |
| Air Recirculation Indicator | Recirculation Off | Off | The scan tool displays On or Off depending on the state of the indicator command. |
| Recirculation On | On | ||
| Air Recirculation LED | Recirculation Off | Off | The scan tool displays On or Off depending on the state of the indicator command. |
| Recirculation On | 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 | ||
| Auto HVAC Button/Switch | 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 command. |
| Auto mode is activated | On | ||
| Auto HVAC Switch | Auto HVAC switch released | Inactive | The scan tool displays On or Off depending on the state of the Auto HVAC switch. |
| Auto HVAC switch pressed | Active | ||
| Auto Recirculation Button/Switch | - | Inactive | The scan tool displays Up, Down, or Inactive depending on the state of the switch. |
| Auto Recirculation Indicator | Auto Recirculation is deactivated | Off | The scan tool displays On or Off depending on the state of the Auto Recirculation indicator command. |
| Auto Recirculation is activated | On | ||
| Auxiliary Blower Motor Button/Switch | - | Varies | The scan tool displays AUTO, OFF, 1, 2, 3, 4, or 5 depending on the position of the auxiliary blower motor switch. |
| Auxiliary Blower Motor Speed | - | 0 - 100% | The scan tool displays % depending on the feedback. The value increases stepwise from 0 - 100% depending on the feedback. |
| Auxiliary Blower Motor Speed Command | - | 0 - 100% | The scan tool displays % depending on the command. The value increases stepwise from 0 - 100% depending on the command/request. |
| Auxiliary Blower Motor Speed Indicator | - | Varies | The scan tool displays On or Off depending on the state of the indicator command. |
| Auxiliary Blower Motor Switch - Rotary | - | Varies | The scan tool displays AUTO, OFF, 1, 2, 3, 4, or 5 depending on the position of the auxiliary blower motor switch. |
| Auxiliary Coolant Pump | - | Varies | The scan tool displays Active or Inactive depending on the requested state of the coolant pump. |
| Auxiliary Coolant Pump Relay Command | - | Varies | The scan tool displays Active or Inactive depending on the requested state of the relay. |
| Auxiliary Coolant Pump Speed Command Duty Cycle | - | 0 - 100% | The scan tool displays % depending on the command. The value increases stepwise from 0 - 100% depending on the command/request. |
| Auxiliary Coolant Pump Speed Feedback Duty Cycle | - | 0 - 100% | The scan tool displays % depending on the feedback. The value increases stepwise from 0 - 100% depending on the feedback. |
| Auxiliary Heater Coolant Pump Fault Status | - | Normal | The scan tool displays Normal, High/Low Current, Flow Restricted, Overvoltage, Over temperature, or Circuit Open/Shorted indicating the status of the coolant pump. |
| Auxiliary Heater Output Status | - | OK | The scan tool displays OK, or Malfunction indicating the status of the auxiliary heater. |
| Auxiliary Mode Door Actuator Command | - | Varies | The scan tool displays Counts. This is the desired position of the rear mode actuator. |
| Auxiliary Mode Door Actuator Direction | - | Stop | The scan toll displays Stop, Increase, or Decrease depending on the state of the rear mode actuator. During the movement of the door, the scan tool shows Increase or Decrease depending on the movement direction. |
| Auxiliary Mode Door Actuator Learn Status | - | Complete | The scan tool displays Not Running, In Progress, Complete, or Failed depending on the actuator calibration status. |
| Auxiliary Mode Door Actuator Position | - | Varies | The scan tool displays Counts. This is the actual position of the rear mode actuator. |
| Auxiliary Mode Switch Indicator | Auxiliary Mode Switch inactive | Off | The scan tool displays On or Off depending on the state of the indicator command. |
| Auxiliary Mode Switch active | On | ||
| Auxiliary Mode Switch Position - Knob | - | Varies | The scan tool displays Auto, Floor, Bi-level or Panel depending on the position of the switch. |
| Auxiliary Mode Switch Position - Toggle | - | Varies | The scan tool displays Auto, Floor, Bi-level or Panel depending on the position of the switch. |
| Base Model Part Number | - | Varies | Displays the currently installed part number of module. |
| Battery Voltage | - | Varies | The scan tool displays V. This is the current battery voltage. |
| Bi-Level Button/Switch | Bi-Level Switch released | Inactive | The scan tool displays Active or Inactive depending on the state of the switch. |
| Bi-Level Switch pressed | Active | ||
| Bi-Level Indicator | Bi-Level mode selected | Off | The scan tool displays On or Off depending on the state of the indicator command. |
| Bi-Level mode deselected | On | ||
| 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 on the selected speed. |
| Blower Motor Speed 1 Indicator | - | Varies | The scan tool displays On or Off depending on the state of the indicator command. |
| Blower Motor Speed 2 Indicator | - | Varies | The scan tool displays On or Off depending on the state of the indicator command. |
| Blower Motor Speed 3 Indicator | - | Varies | The scan tool displays On or Off depending on the state of the indicator command. |
| Blower Motor Speed 4 Indicator | - | Varies | The scan tool displays On or Off depending on the state of the indicator command. |
| Blower Motor Speed 5 Indicator | - | Varies | The scan tool displays On or Off depending on the state of the indicator command. |
| Blower Motor Speed 6 Indicator | - | Varies | The scan tool displays On or Off depending on the state of the indicator command. |
| 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 on the selected speed. |
| Blower Motor Switch- Toggle | - | Inactive | The scan tool displays Up, Down or Inactive depending on the state of the blower motor switch. |
| Date Programmed | - | Varies | The scan tool displays the date the module was last programmed. |
| Desired Left Temperature | - | Varies | The scan tool displays °C (°F). This is the currently selected temperature setting. |
| Desired Rear Temperature | - | Varies | The scan tool displays °C (°F). This is the currently selected temperature setting. |
| Desired Right Temperature | - | Varies | The scan tool displays °C (°F). This is the currently selected temperature setting. |
| Diagnostic Data Identifier | - | Varies | The scan tool displays the 4 character alphanumeric device ID. |
| End Model Part Number | - | Varies | The scan tool displays the end software module part number. |
| Enhanced Defrost Button/Switch | Enhanced defrost switch released | Inactive | The scan tool displays On or Off depending on the state of the switch. |
| Enhanced defrost switch pressed | Active | ||
| 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 | ||
| Floor Mode Button/Switch | Floor mode switch released | Inactive | The scan tool displays Active or Inactive depending on the state of the switch. |
| Floor mode switch pressed | Active | ||
| Floor Mode Indicator | Floor mode Not selected | Off | The scan tool displays On or Off depending on the state of the indicator command. |
| Floor mode selected | On | ||
| Fresh Air Button/Switch | Fresh air switch released | Inactive | The scan tool displays Active or Inactive depending on the state of the switch. |
| Fresh air switch pressed | Active | ||
| Fresh Air Indicator | Fresh air not selected | Off | The scan tool displays On or Off depending on the state of the indicator command. |
| Fresh air selected | On | ||
| Front Defog Button/Switch | Front defog switch released | Inactive | The scan tool displays Active or Inactive depending on the state of the switch. |
| Front defog switch pressed | Active | ||
| Front Defog Indicator | Front defog not selected | Off | The scan tool displays On or Off depending on the state of the indicator command. |
| Front defog selected | On | ||
| Front Defrost Button/Switch | Defrost switch released | Inactive | The scan tool displays Active or Inactive depending on the state of the switch. |
| Defrost switch pressed | Active | ||
| Front Defrost Indicator | Front defrost not selected | Off | The scan tool displays On or Off depending on the state of the indicator command. |
| Front defrost selected | On | ||
| Front HVAC System Status | - | Varies | The scan tool displays Comfort, ECO, or Fan Only depending on the selected operating mode of the HVAC system. |
| Front HVAC System Status Indicator | - | Varies | The scan tool displays: Link Active, AQS Active, Front Off Active, Fan Blower Minus Active, Fan Blower Plus Active, Knob Fan Active, Knob Temp Active, FR Fahrenheit Active, FR Celsius Active, FL Fahrenheit Active, FL Celsius Active, Front Fan 6 Active, Front Fan 5 Active, Front Fan 4 Active, Front Fan 3 Active, Front Fan 2 Active, Front Fan 1 Active, FL Active, Rear Enable Active, Extended Defrost Active, Heat Mode Active, Bi-level Active, Floor Active, Vent Active, Defog Active, Rear Defrost Active, Automatic Active, Fresh Active, Recirculation Active, or A/C Active depending on the current operating mode of the HVAC system. |
| Heat Mode Button/Switch | Heat switch released | Inactive | The scan tool displays Active or Inactive depending on the state of the switch. |
| Heat switch pressed | Active | ||
| Heat Mode Indicator | Heat not selected | Off | The scan tool displays On or Off depending on the state of the indicator command. |
| Heat selected | On | ||
| Heater Core Coolant Temperature Sensor | - | -40 to +215°C (-40 to +419°F) | The scan tool displays °C (°F). This is the temperature of the coolant at the inlet of the coolant heater |
| Heating Element 1 Duty Cycle Command | - | Varies | The scan tool displays % from 0 - 100, depending on the state of the command. |
| High Voltage Heater Pump Status | - | Varies | The scan tool displays % from 0 - 100, depending on the feedback. |
| HVAC Indicator Commanded Status | - | Varies | The scan tool displays On or Off depending on the state of the indicator command. |
| 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. |
| HVAC Control Switch Activations - Extended | - | Inactive | The scan tool displays Active or Inactive. Active is displayed when a switch is pressed. |
| HVAC Heater Coolant Pump Speed Command Duty Cycle | - | Varies | The scan tool displays % from 0 - 100, depending on the state of the command. |
| HVAC Heater Coolant Pump Speed Feedback Duty Cycle | - | Varies | The scan tool displays % from 0 - 100, depending on the feedback. |
| HVAC Mode Status | - | Varies | The scan tool displays: Peak Performance Mode, Normal, Economy Mode, Blower Only Mode, or Heater Economy Mode indicating the currently selected mode. |
| Hybrid/EV Battery Pack Coolant Pump Command | - | Varies | The scan tool displays % from 0 - 100, depending on the state of the command. |
| Hybrid/EV Battery Pack Coolant Pump Speed | - | Varies | The scan tool displays % from 0 - 100, depending on the feedback. |
| Hydrocarbon Air Quality Sensor | - | Varies | The scan tool displays counts. The value increases with the increasing of the pollution of the ambient air. |
| Ignition Voltage | - | 11 - 14 V | The scan tool displays the current Ignition voltage. |
| Instrument Panel Vents Button/Switch | Instrument Panel Vent switch released | Inactive | The scan tool displays Active or Inactive depending on the state of the switch. |
| Instrument Panel Vent switch pressed | Active | ||
| Instrument Panel Vents Indicator | Panel Vents not selected | Off | The scan tool displays On or Off depending on the state of the indicator command. |
| Panel Vents selected | On | ||
| Left / Single Solar Sensor | - | Varies | The scan tool displays W/m2 . This is the current sun heat intensity. |
| Left Temperature Button/Switch | - | Inactive | The scan tool displays Up, Down, or Inactive depending on the state of the temperature switch. |
| Left Temperature Door Actuator Command | - | Varies | The scan tool displays Counts. This is the desired position of the actuator. |
| Left Temperature Door Actuator Direction | - | Varies | The scan tool displays stop, increase, or decrease. This is the current direction of the actuator. |
| Left Temperature Door Actuator Learn Status | - | Complete | The scan tool displays Not Running, In Progress, Complete, or Failed depending on the actuator calibration status. |
| Left Temperature Door Actuator Position | - | Varies | The scan tool displays Counts. This is the actual position of the actuator. |
| Left Temperature Knob Position | - | Varies | The scan tool displays Increase or Decrease when the left temperature knob is rotated. |
| Lower Left Duct Air Temperature Sensor | - | -40 to +80°C (-40 to +176°F) | The scan tool displays °C (°F). This is the current temperature at the duct temperature sensor. |
| Lower Rear Duct Air Temperature Sensor | - | -40 to +80°C (-40 to +176°F) | The scan tool displays °C (°F). This is the current temperature at the duct temperature sensor. |
| Lower Right Duct Air Temperature Sensor | - | -40 to +80°C (-40 to +176°F) | The scan tool displays °C (°F). This is the current temperature at the duct temperature sensor. |
| Manufacturing Enable Counter | - | 0 | The scan toll displays 0 - 255 counts. This counter typically decrements 1 count per ignition cycle. 0 indicates a locked ECU. |
| Manufacturing Traceability Data | - | Varies | This parameter displays the diagnostic module traceability number, which may be up to 16 digits long. This information may be used in certain situations to identify the manufacturer of the component. |
| Mode Door Actuator Command | - | Varies | The scan tool displays Counts. This is the desired position of the actuator. |
| Mode Door Actuator Direction | - | Stop | The scan tool displays stop, increase, or decrease. This is the current direction of the actuator. |
| Mode Door Actuator Learn Status | - | Complete | The scan tool displays Not Running, In Progress, Complete, or Failed depending on the actuator calibration status. |
| Mode Door Actuator Position | - | Varies | The scan tool displays Counts. This is the actual position of the actuator. |
| Mode Switch - Toggle | - | Inactive | The scan tool displays Up, Down, or Inactive depending on the state of the mode switch. |
| Mode Switch Knob Position | - | Varies | The scan tool displays: Rear, Sync, Floor/Vent/Defrost (Tri-Level), Vent/Defrost, Front Defrost, Foot/Defrost 3 (Blend+), Foot/Defrost 2 (Blend), Foot/Defrost 1 (Floor +), Foot (Floor), Bi-level 3 (Bi-level +), Bi-level 2 (Bi-level), Bi-level 1 (Panel +), Face (Panel), or AUTO depending on the position of the switch. |
| MULTI-ZONE Button/Switch | MULTI-ZONE switch released | Inactive | The scan tool displays Active or Inactive depending on the state of the switch. |
| MULTI-ZONE switch pressed | Active | ||
| MULTI-ZONE Indicator | MULTI-ZONE not selected | Off | The scan tool displays On or Off depending on the state of the indicator command. |
| MULTI-ZONE selected | On | ||
| Outside Air Temperature Sensor Voltage | - | -40 to +80°C (-40 to +176°F) | The scan tool displays °C (°F). This is the current temperature at the outside air temperature sensor. |
| Passenger Compartment Air Temperature (Filtered) | - | -40 to +80°C (-40 to +176°F) | The scan tool displays °C (°F). This is the stored temperature of the passenger compartment air temperature sensor. |
| Passenger Compartment Air Temperature (Unfiltered) | - | -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 windshield 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 Defogger Button/Switch | Rear Defogger switch released | Inactive | The scan tool displays Active or Inactive depending on the state of the switch. |
| Rear Defogger switch pressed | Active | ||
| Rear Defogger Deactivation Reason | - | Varies | The scan tool displays: Auto Start Active, Rear Defrost Inhibited, Load Shed Active, Convertible Top Down, or Battery State of Charge Low. This is the reason the defogger has been disabled. |
| Rear Defogger 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 command. |
| Vehicle ON/Rear defogger is activated | On | ||
| Rear In Vehicle Temperature Sensor (Filtered) | - | -40 to +80°C (-40 to +176°F) | The scan tool displays °C (°F). This is the stored temperature of the rear passenger compartment air temperature sensor. |
| Rear In Vehicle Temperature Sensor (Unfiltered) | - | -40 to +80°C (-40 to +176°F) | The scan tool displays °C (°F). This is the current temperature at the rear passenger compartment air temperature sensor. |
| Rear Temperature Button/Switch | - | Inactive | The scan tool displays Up, Down or Inactive depending on the state of the temperature switch. |
| Rear Temperature Door Actuator Command | - | Varies | The scan tool displays Counts. This is the desired position of the mode actuator. |
| Rear Temperature Door Actuator Direction | - | Stop | The scan tool displays stop, increase, or decrease. This is the current direction of the actuator. |
| Rear Temperature Door Actuator Learn Status | - | Complete | The scan tool displays Not Running, In Progress, Complete, or Failed depending on the actuator calibration status. |
| Rear Temperature Door Actuator Position | - | Varies | The scan tool displays Counts. This is the actual position of the actuator. |
| Rear Temperature Knob Position | - | Varies | The scan tool displays Increase or Decrease when the rear temperature knob is rotated. |
| Repair Shop Code or Tester Serial Number | - | Varies | This number may be used in certain situations to identify the supplier, control module and diagnostic capability of the component. |
| Right Solar Load | - | Varies | The scan tool displays W/m2 . This is the current sun heat intensity. |
| Right Solar Sensor | - | Varies | The scan tool displays W/m2 . This is the current sun heat intensity. |
| Right Temperature Button/Switch | - | Inactive | The scan tool displays Up, Down or Inactive depending on the state of the temperature switch. |
| Right Temperature Door Actuator Command | - | Varies | The scan tool displays Counts. This is the desired position of the mode actuator. |
| Right Temperature Door Actuator Direction | - | Stop | The scan tool displays stop, increase, or decrease. This is the current direction of the actuator. |
| Right Temperature Door Actuator Learn Status | - | Complete | The scan tool displays Not Running, In Progress, Complete, or Failed depending on the actuator calibration status. |
| Right Temperature Door Actuator Position | - | Varies | The scan tool displays Counts. This is the actual position of the actuator. |
| Right Temperature Knob Position | - | Varies | The scan tool displays Increase or Decrease when the right temperature knob is rotated. |
| Security Code Accepted | - | Yes | The scan tool displays Yes or No depending on the current security code status. |
| Security Code Lockout | - | Security Code Accepted | The scan tool displays Tool Learn Delay Active, Vehicle Assembly Mode Flag, Security Code Lockout Active, Security Code Programmed, Security Code Accepted depending on the current security code status. |
| Security Code Lockout Active | - | Inactive | When active, the scan tool displays a timer which prohibits programming the security code when a certain number of attempts have been exceeded. The security code is a method of verifying that the module has not been swapped with a module from another vehicle |
| Security Code Programmed | - | Yes | The scan tool displays Yes or No depending on the current security code status. |
| Security Code Programming Counter | - | Varies | This parameter indicates the number of times the security code has been programmed. The security code is a method of verifying that the module has not been swapped with a module from another vehicle. |
| Security Code Reset Counter | - | Varies | This parameter indicates the number of times the security code has been reset. The security code is a method of verifying that the module has not been swapped with a module from another vehicle. |
| Software Module 1 Identifier | - | Varies | The scan tool displays the software calibration part number 1. |
| Software Module 2 Identifier | - | Varies | The scan tool displays the software calibration part number 2. |
| Software Module 3 Identifier | - | Varies | The scan tool displays the software calibration part number 3. |
| Sun Azimuth | - | 0 - 90° | The scan tool displays degrees. 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 degrees. This is the current angle in the vertical sun height. |
| Sunload / Sun Intensity | - | 0 - 1200 W/m2 | The scan tool displays W/m2 . This is the current sun heat intensity. |
| Upper Left Duct Air 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. |
| Upper Rear Duct Air Temperature Sensor | - | -40 to +80°C (-40 to +176°F) | The scan tool displays °C (°F). This is the current temperature at the rear upper duct temperature sensor. |
| Upper Right Duct Air Temperature Sensor | - | -40 to +80°C (-40 to +176°F) | The scan tool displays °C (°F). This is the current temperature at the upper right duct temperature sensor. |
| Vehicle Identification Number (VIN) | - | Varies | The scan tool displays the learned vehicle identification number. |
| Windshield Temperature | - | -40 to +80°C (-40 to +176°F) | The scan tool displays °C (°F). This is the current temperature at the windshield temperature sensor. |
Heating Ventilation and Air Conditioning Control Module Scan Tool Output Controls
| Output Control | Description |
|---|---|
| A/C Compressor Clutch Enable | This control function enables or disables the A/C Compressor Clutch. The scan tool displays Engaged or Disengaged depending on the state of the A/C compressor clutch. |
| A/C Compressor Valve Control | This control function increases or decreases the command to the A/C Compressor Solenoid in %. The scan tool displays amperage in % depending on the state of the command for increased/decreased compressor displacement. |
| Aero Shutter Enable | This control function commands the state of the Aero Shutter between Active and Not Active. |
| Air Inlet Door Actuator Control | This control function commands the door position to increase or decrease. During the movement of the door, the scan tool shows Increase or Decrease dependant on the movement direction. When the position of the door is reached, the scan tool displays Stop. |
| Air Recirculation Door Actuator Direction | This control function commands the door position to increase or decrease. During the movement of the door, the scan tool shows Increase or Decrease dependant on the movement direction. When the position of the door is reached, the scan tool displays Stop. |
| Auxiliary Blower Motor Speed | This control function commands the auxiliary blower motor speed from 0 to 100% and back again. |
| Auxiliary Coolant Pump Speed | The HVAC control module enables or disables the coolant pump, and varies the pump speed when commanded from the scan tool. |
| Auxiliary Heater Output Enable | This control function increases or decreases the command to the Auxiliary Heater in %. The scan tool displays amperage in % depending on the state of the command. |
| Auxiliary Mode Door Actuator Control | This control function commands the door position to increase or decrease. During the movement of the door, the scan tool shows Increase or Decrease dependant on the movement direction. When the position of the door is reached, the scan tool displays Stop. |
| Blower Motor Speed/Command | This control function commands the blower motor speed from 0 to 100% and back again. |
| Heater Core Pump Relay Control Circuit | This control function commands the heater core pump relay On and Off. |
| Illuminate All Indicators | The HVAC control module illuminates all the indicators when commanded from the scan tool. |
| Left Temperature Door Actuator Control | This control function commands the door position to increase or decrease. During the movement of the door, the scan tool shows Increase or Decrease dependant on the movement direction. When the position of the door is reached, the scan tool displays Stop. |
| Mode Door Position Control | This control function commands the door position to increase or decrease. During the movement of the door, the scan tool shows Increase or Decrease dependant on the movement direction. When the position of the door is reached, the scan tool displays Stop. |
| Rear Defogger | This control function enables or disables the Rear Defogger. The scan tool displays Active or Not Active depending on the state of the rear defogger command. |
| Rear Temperature Door Actuator Control | This control function commands the door position to increase or decrease. During the movement of the door, the scan tool shows Increase or Decrease dependant on the movement direction. When the position of the door is reached, the scan tool displays Stop. |
| Right Temperature Door Actuator Control | This control function commands the door position to increase or decrease. During the movement of the door, the scan tool shows Increase or Decrease dependant on the movement direction. When the position of the door is reached, the scan tool displays Stop. |
| Single Zone Temperature Actuator Direction | This control function commands the door position to increase or decrease. During the movement of the door, the scan tool shows Increase or Decrease dependant on the movement direction. When the position of the door is reached, the scan tool displays Stop. |
Heating Ventilation and Air Conditioning Control Module Configuration/Reset Functions
| Output Control | Description |
|---|---|
| HVAC Afterblow Configuration | This control function enables or disables the afterblow configuration. When enabled, the Afterblow mode operates the blower motor after the engine has been turned off and the air conditioning has been used. This operation of the blower motor aids in drying the evaporator core |
| HVAC Actuators Learn | The HVAC control module executes the Motor Learn Routine when commanded. The actuators are commanded to their extreme travel available at both ends. These values are then used for future reference when determining door position. |
| Reset Source ID | Resets the communication IDs between modules |