| Table 1: | Heating and Air Conditioning Scan Tool Data List |
| Table 2: | PCM Scan Tool Data List |
Use the Scan Tool Data Display Values and Definitions Information in order to assist in diagnosing the heater and A/C control problems. Compare the vehicles actual scan tool data with the typical data display value table information. Use the data information in order to aid in understanding the nature of the problem when the vehicle does not match with the typical data display values.
The scan tool data values were taken from a known good vehicle under the following conditions:
| • | The ignition switch is in the ON position. |
| • | The engine is running at idle. |
| • | The vehicle is in PARK. |
| • | The doors are closed. |
| • | The windows are closed. |
| • | The A/C is ON. |
| • | The ambient air temperatures are at 22-27°C (70-80°F). |
Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
Operating Conditions: Engine idling, A/C ON, ambient air temperature between 22-27°C (70-80°F) | |||
AC-Cutout | Data List | Active/Inactive | Active |
A/C Request | Data List | Yes/No | Yes |
A/C Switch | Data List | Active/Inactive | Inactive |
Air Circulation Valve | Data List | Active/Inactive | Inactive |
Air Outlet Mode | Data List | Auto Compartment Compart/Floor Defrost Defrost/Floor Floor | varies |
Auto Switch | Data List | On/Off | varies |
Battery Voltage | Data List | Volts | varies |
Blower Controller Voltage | Data List | Volts | OFF-0.0 Volts Position 1-1.5 Volts Position 2-2.1 Volts Position 3-2.8 Volts Position 4-3.4 Volts Position 5-5.0 Volts |
Blower Motor Status | Data List | Active/Inactive | Active |
Blower Speed Dec. Sw. | Data List | On/Off | Off |
Blower Speed Inc. Sw. | Data List | On/Off | Off |
Calc. Left Air Out Temp | Data List | °C/°F | 0°C/32°F |
Calc. Right Air Out Temp | Data List | °C/°F | 0°C/32°F |
Def. Air Mix Door Mot. | Data List | Active/Inactive | Inactive |
Def. Air Mix Door Pos. | Data List | Percentage | 0% |
Defrost Switch | Data List | On/Off | Off |
Desired Left Temp | Data List | °C/°F | varies |
Desired Right Temp | Data List | °C/°F | varies |
Dimmed Illumination | Data List | Percentage | 2-22% (100% when headlamps are OFF) |
Disp Outside Temp | Data List | °C/°F | varies |
Engine Status | Data List | Off/Running | Running |
Flr. Air Mix Door Mot. | Data List | Active/Inactive | Inactive |
Flr. Air Mix Door Pos. | Data List | Percentage | 0-100% |
Heating Cont. Valve | Data List | Active/Inactive | Inactive |
Inside Air Temp Filt. | Data List | °C/°F | varies |
Inside Air Temperature | Data List | °C/°F | varies |
Inside Temp Sensor | Data List | Volts | 0-5.0 Volts |
Int. Air Mix Door Mot. | Data List | Active/Inactive | Inactive |
Int. Air Mix Door Pos. | Data List | Percentage | 0-100% |
Left Air Mix Door Mot. | Data List | Active/Inactive | Inactive |
Left Air Mix Door Pos. | Data List | Percentage | 0-100% |
LH Air Out Temp Act. | Data List | °C/°F | varies |
LH Air Out Temp Filt. | Data List | °C/°F | varies |
LH Air Out Temp Sensor | Data List | Volts | varies |
Mode Down Switch | Data List | Active/Inactive | Inactive |
Mode Up Switch | Data List | Active/Inactive | Inactive |
On/Off Switch | Data List | Active/Inactive | Inactive |
Outside Air Temp Filt. | Data List | °C/°F | varies |
Outside Temperature | Data List | °C/°F | varies |
Outside Temp Sensor | Data List | Volts | varies |
Rear Defog Command | Data List | Active/Inactive | Inactive |
Rear Defog Status | Data List | Active/Inactive | Inactive |
Rear Defog Switch | Data List | Active/Inactive | Inactive |
Recirculation Switch | Data List | Active/Inactive | Inactive |
RH Air Out Temp Act. | Data List | °C/°F | varies |
RH Air Out Temp Filt. | Data List | °C/°F | varies |
RH Air Out Temp Sensor | Data List | Volts | varies |
Rt. Air Mix Door Mot. | Data List | Active/Inactive | Inactive |
Rt. Air Mix Door Pos. | Data List | Percentage | 0-100% |
Solar Intensity | Data List | W/m² | 0 W/m² |
Solar Sen. Int. Filt. | Data List | W/m² | 0 W/m |
Solar Sen. Intensity | Data List | Volts | 0 Volts |
Twilight Output | Data List | Active/Inactive | Active |
Twilight Sensor Voltage | Data List | Volts | 0 Volts |
Vehicle Speed | Data List | km/h/mph | 0 km/h/0 mph |
Zone Mode Switch | Data List | Active/Inactive | Inactive |
Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
Operating Conditions: Engine idling, A/C ON, ambient air temperature between 22-27°C (70-80°F) | |||
A/C Clutch Relay | Engine Data | On/Off | On |
