| Table 1: | HVAC Control Module Scan Tool Output Controls |
| Table 2: | Aux. HVAC Control Module Scan Tool Output Controls |
| Table 3: | ECM Scan Tool Output Controls |
Scan Tool Output Control | Additional Menu Selections | Description |
|---|---|---|
Auxiliary Air Temp Door | Special Functions | The scan tool displays Off and On selections. The selection drives the actuator to its minimum and maximum positions when commanded in both directions. |
auxiliary Mode Door | Special Functions | The scan tool displays Off and On selections. The selection drives the actuator to its minimum and maximum positions when commanded in both directions. |
Blower Motor | Special Functions | The scan tool displays Off and On selections. The selection commands the blower speed to its minimum and maximum when commanded On and Off. |
Displays Test | Special Functions | The scan tool displays Off and On selections. When commanded Off the LED display on the HVAC module is blank. When commanded back On the LED displays the original settings displayed before being commanded Off. |
Driver Temp Door | Special Functions | The scan tool displays Off and On selections. The selection drives the actuator to its minimum and maximum positions when commanded in both directions. |
Inside Air Temp. Sensor Fan | Special Functions | The scan tool displays On and Off. When the inside air temp. sensor fan is commanded On the inside air temp sensor fan scan tool parameter also displays On. |
Mode Door Position | Special Functions | The scan tool displays Off and On selections. The selection drives the actuator to its minimum and maximum positions when commanded in both directions. |
Passenger Temp Door | Special Functions | The scan tool displays Off and On selections. The selection drives the actuator to its minimum and maximum positions when commanded in both directions. |
Power Down Now | Special Functions | The key must be in the Off position when Power Down Now is selected. Then the scan tool is disconnected to perform a parasitic load test. |
Recirculation Door | Special Functions | The scan tool displays Off and On selections. The selection drives the actuator to its minimum and maximum positions when commanded in both directions. |
Segment Check | Special Functions | The scan tool displays Off and On selections. When commanded Off the LCD display on the HVAC module is blank. When commanded back On the LCD displays all viewable numbers and symbols. |
Scan Tool Output Control | Additional Menu Selections | Description |
|---|---|---|
Auxiliary Blower Motor | Special Functions | The scan tool displays Off and On selections. The selection commands the blower speed to its minimum and maximum when commanded On and Off. |
Backlight Dimming | Special Functions | The scan tool displays Off and On selections. When commanded On the backlighting is illuminated when commanded Off the Backlights are Off. |
Display Test | Special Functions | The scan tool displays Off and On selections. When commanded Off the LCD display on the AUX HVAC module is blank. When commanded back On the LCD displays the original settings displayed before being commanded Off. |
Power Down Now | Special Functions | The key must be in the Off position when Power Down Now is selected. Then the scan tool is disconnected to perform a parasitic load test. |
Segment Check | Special Functions | The scan tool displays Off and On selections. When commanded Off the LCD display on the AUX HVAC module is blank. When commanded back On the LCD displays all viewable numbers and symbols. |
Scan Tool Output Control | Additional Menu Selections | Description |
|---|---|---|
A/C Relay | Output Controls | The engine must be running and the ECM must receive an A/C request from the HVAC control module in order to enable the output control. The ECM de-energizes the A/C compressor clutch relay when you select OFF. The relay remains de-energized until you select ON. |
