Use the Scan Tool Data Display Values and Definitions Information in order to assist in diagnosing the Instrument Panel Integration Module (IPM) 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 between 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) | |||
A/C Clutch (actual) | A/C Information | On/Off | On |
A/C Clutch (desired) | A/C Information | On/Off | On |
A/C Pressure | A/C Information | kPa/psi | 1300 kPa (188 psi) |
Clutch Voltage | A/C Information | Low/Normal | Normal |
Control Head (desired) | A/C Information | On/Off | On |
Evaporator Temp Status | A/C Information | OK/Disengaged | OK |
Evaporator Temp. | A/C Information | °C/°F | 0°C/32°F |
Pressure Status | A/C Information | Low/High/Normal | Normal |
Steering Wheel Controls | Inputs | Counts | 0-110 Counts |
Temperature Status | A/C Information | Low/High/OK | OK |
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) | |||
8 Digit GM Part Number | Module Information | 8 digit alphanumeric | 9383026 |
A/C Requested | HVAC System Data | Yes/No | Yes |
Air Inlet Dr Actual | HVAC Door Positions | Counts/Volts | 36-188 Counts (0.71-3.68 Volts) |
Air Inlet Dr Commanded | HVAC Door Positions | Counts/Volts | 36-188 Counts (0.71-3.68 Volts) |
Calibration ID | Module Information | 4 digit numeric | 7804 |
Commanded Blower | HVAC System Data | Percentage | 12-91% |
Component Serial Number | Module Information | 4 digit numeric | 7863 |
Coolant Temperature | HVAC System Data | °C/°F | 95°C (203°F) |
Driver AC Duct Temp | HVAC Sensors | °C/°F | 9°C (48°F) |
Driver Htr. Duct Temp | HVAC Sensors | °C/°F | 22°C (71°F) |
Driver Program Number | HVAC System Data | Counts | 12-243 Counts |
Driver Solar | HVAC Sensors | Counts | 236 Counts |
Htr./Def./A/C Dr Actual | HVAC Door Positions | Counts/Volts | 65-237 Counts/1.33-4.65 Volts |
Htr./Def./A/C Dr Commanded | HVAC Door Positions | Counts/Volts | 65-237 Counts/1.33-4.65 Volts |
Inside Air Temp | HVAC Sensors | °C/°F | 23°C (73°F) |
Inside Air Temp | Open/Short Data | Counts/Volts | 130 Counts/2.53 Volts |
Julian Date of Build | Module Information | 3 digit numeric | varies |
Left AC Duct Temp | Open/Short Data | Counts/Volts | 174 Counts/3.43 Volts |
Left Htr. Duct Temp | Open/Short Data | Counts/Volts | 116 Counts/2.27 Volts |
Left Solar Sensor | Open/Short Data | Counts/Volts | 236 Counts/4.63 Volts |
Left Temp Dr Actual | HVAC Door Positions | Counts/Volts | 22-221 Counts/0.43-4.31 Volts |
Left Temp. Dr. Commanded | HVAC Door Positions | Counts/Volts | 22-221 Counts/0.43-4.31 Volts |
Load Reduction Active | HVAC System Data | Yes/No | No |
Max Air Inlet Dr Pos | HVAC Door Calibrations | Counts/Volts | 205 Counts/4.02 Volts |
Max Htr./Def./A/C Dr. Pos. | HVAC Door Calibrations | Counts/Volts | 237 Counts/4.65 Volts |
Max Left Temp Dr Pos | HVAC Door Calibrations | Counts/Volts | 199 Counts/3.90 Volts |
Max Right Temp Dr Pos | HVAC Door Calibrations | Counts/Volts | 224 Counts/4.39 Volts |
Min Air Inlet Dr Pos | HVAC Door Calibrations | Counts/Volts | 36 Counts/0.71 Volts |
Min Left Temp Dr Pos | HVAC Door Calibrations | Counts/Volts | 22 Counts/0.43 Volts |
Min Right Temp Dr Pos | HVAC Door Calibrations | Counts/Volts | 55 Counts/1.08 Volts |
Min. Htr./Def./A/C Dr. Pos. | HVAC Door Calibrations | Counts/Volts | 8 Counts/.16 Volts |
Outside Air Temp | HVAC Sensors | °C/°F | 24°C (75°F) |
Outside Air Temp | Open/Short Data | Counts/Volts | 84 Counts/1.65 Volts |
Passenger AC Duct Temp | HVAC Sensors | °C/°F | 9°C/48°F |
Passenger Htr. Duct Temp | HVAC Sensors | °C/°F | 14°C/57°F |
Passenger Program Number | HVAC System Data | Counts | 12-243 Counts |
Passenger Solar | HVAC Sensors | Counts | 236 Counts |
PROM ID | Module Information | 4 digit alphanumeric | 7303 |
Right AC Duct Temp | Open/Short Data | Counts/Volts | 178 Counts/3.49 Volts |
Right Htr. Duct Temp | Open/Short Data | Counts/Volts | 155 Counts/3.04 Volts |
Right Solar Sensor | Open/Short Data | Counts/Volts | 236 Counts/4.63 Volts |
Right Temp Dr Actual | HVAC Door Positions | Counts/Volts | 55-224 Counts/1.08-4.39 Volts |
Right Temp. Dr. Commanded | HVAC Door Positions | Counts/Volts | 55-224 Counts/1.08-4.39 Volts |
Selected Air Mode | HVAC System Data | Defrost/Defog/Upper/Bi-Level/Heater/Auto | varies |
System Program Number | HVAC System Data | Counts | 12-243 Counts |
Vehicle Speed | HVAC System Data | km/h/mph | 0 km/h/0 mph |
Year Module Built | Module Information | 4 digit numeric | 1999 |
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 High Side Pressure (Except Eldorado) | Engine Data 2 | Volts | 2.00 Volts |
A/C Relay | Engine Data 2 | On/Off | On |
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) | |||
Load Shed Lvl. 1 R. Blower | Outputs | Enabled/Disabled | Disabled |
Load Shed Lvl. 2 R. Blower | Outputs | Enabled/Disabled | Disabled |
Rear Blower Control | Outputs | On/Off | On |
