Chevrolet Equinox manuals

Chevrolet Equinox Service Manual: Heating, Ventilation and Air Conditioning Control Module Scan Tool Information

Chevrolet Equinox Service Manual / HVAC / HVAC Controls / Heating, Ventilation and Air Conditioning Control Module Scan Tool Information

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
Heating Ventilation and Air Conditioning Control Module Scan Tool Data Parameters

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 inhibit.

A/C Compressor Clutch Status

A/C Off

Disengaged

The scan tool displays Engaged or Disengaged depending on the state of the A/C compressorclutch.

A/C On

Engaged

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 Inlet Door Motor Calibration Status

Varies

The scan tool displays Not Running, In Progress, Complete or Failed depending thecalibration status.

Air Recirculation Door Motor Command

Varies

The scan tool displays Counts. This is the desired position of the air recirculationactuator.

Air Recirculation Door Position

Varies

The scan tool displays Counts. This is the current position of the air recirculationactuator.

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 recirculationmode 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 airtemperature sensor.

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

Battery Voltage

11–14-V

The scan tool displays V. This is the current battery voltage.

Bi-level Indicator

Bi-level mode is deactivated

Off

The scan tool displays On or Off depending on the state of the Bi-level mode.

Bi-level mode is activated

On

Bi-level switch

Bi-level switch released

Inactive

The scan tool displays Active or Inactive depending on the state of the Bi-level switch.

Bi-level switch pressed

Active

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 Indicator 1–6

Varies

The scan tool displays On or Off depending on the state on the state of the selectedblower motor 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 motorspeed.

Desired Left Duct Temperature

Varies

The scan tool displays °C (°F). This is the desired temperature at the left duct temperaturesensor.

Desired Left Temperature

Varies

The scan tool displays °C (°F). This is the selected temperature at the left temperatureswitch.

Desired Left Temperature Motor Door Position

Varies

The scan tool displays Counts. This is the desired position of the left temperatureactuator.

Engine Coolant Temperature

−40 to +215°C (−40 to +419°F)

The scan tool displays °C (°F). This is the current engine coolant temperature.

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 Defog Indicator

Front defog mode is deactivated

Off

The scan tool displays On or Off depending on the state of the front defog mode.

Front defog mode is activated

On

Front Defog Switch

Front defrost switch released

Inactive

The scan tool displays Active or Inactive depending on the state of the front defogswitch.

Front defrost switch pressed

Active

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

Inactive

The scan tool displays Active or Inactive depending on the state of the front defrostswitch.

Front defrost switch pressed

Active

Front HVAC System Status

Varies

The scan tool displays On or Off depending on the state of the POWER switch.

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 ventsmode.

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 instrumentpanel 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 heatingswitch.

Left front seat heating 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 theposition 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 thecalibration status.

Left Temperature Door Motor Direction

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 theposition 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 temperatureactuator.

Left Temperature Knob Position

Varies

The scan tool displays Counts. The value varies between −5 to +5 depending the selectedtemperature knob position. At the cold end position is the value 18 and at the hotend 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 leftduct temperature sensor.

Mode Door Motor Calibration Status

Varies

The scan tool displays Not Running, In Progress, Complete or Failed depending thecalibration status.

Mode Door Motor Command

Varies

The scan tool displays Counts. This is the desired position of the mode actuator.

Mode Door Position

Varies

The scan tool displays Counts. This is the current position of the mode actuator.

Mode Switch

Varies

The scan tool displays Up, Down or Inactive depending on the state of the MODE switch.

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 compartmentair 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 compartmentair temperature sensor.

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.

Engine running/Rear defogger 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 defoggerswitch.

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 NotUsed depending on the state of the recirculation door. During the movement of thedoor, 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 frontseat heating switch.

Right front seat heating switch pressed

Active

Sunload

0–1200-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 leftduct temperature sensor.

Heating Ventilation and Air Conditioning Control Module Scan Tool Output Controls

Output Control

Description

A/C Indicator

The HVAC control module illuminates the A/C indicator when commanded from the scantool.

Air Recirculation Door Motor Direction

The HVAC control module commands the air recirculation actuator from venting to recirculationand back again.

Air Recirculation LED Command

The HVAC control module illuminates the Air Recirculation indicator when commandedfrom the scan tool.

Air Recirculation Mode Switch

When On is selected, the HVAC control module commands the air recirculation door fromoutside air to recirculation. When Off is selected, the HVAC control module commandsthe air recirculation door from recirculation to outside air.

Auto HVAC Indicator

The HVAC control module illuminates the Auto indicator when commanded from the scantool.

Blower Motor Speed Indicator 1–6

The HVAC control module illuminates the appropriate blower speed indicator when commandedfrom the scan tool.

Blower Motor Switch

This control function simulates the state of the blower motor switch.

Front Defrost Indicator

The HVAC control module illuminates the front defrost indicator when commanded fromthe scan tool.

HVAC Actuators

The HVAC control module executes the Motor Learn Routine when commanded from the scantool.

HVAC Afterblow Configuration

This control function disables and enables the afterblow configuration.

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 floorand back again.

Mode Door Position

When Floor is selected, the HVAC control module commands the mode actuator to thefloor position. When Defrost is selected, the HVAC control module commands the actuatorto the defrost position.

Mode Switch

This control function simulates the state of the MODE switch.

Rear Defog

The HVAC control module commands the rear defogger On and Off.

Rear Defogger Indicator

The HVAC control module commands the rear defogger indicator On and Off.

Recirculation Door

The HVAC control module commands the recirculation actuator stepwise from outsideair to recirculation and back again.

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