| Table 1: | Body Control Module (BCM) Scan Tool Data List |
| Table 2: | Heating And Air Conditioning Scan Tool Data List |
| Table 3: | PCM Scan Tool Data List |
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 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) | |||
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 | Varies |
Control Head (desired) | A/C Information | A/C Off/A/C On | A/C On |
Pressure Status | A/C Information | Low/High/OK | OK |
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 | 9353514 |
A/C Requested | HVAC System Data | Yes/No | Yes |
Air Inlet Dr. Actual | HVAC Door Positions | Counts/Volts | 34-187 Counts (0.67-3.68 volts) |
Air Inlet Dr. Commanded | HVAC Door Positions | Counts/Volts | 35-187 Counts (0.69-3.68 volts) |
Calibration ID | Module Information | 4 digit numeric | varies |
Commanded Blower | HVAC System Data | Percentage | 10-83% |
Component Serial Number | Module Information | 4 digit numeric | varies |
Coolant Temperature | HVAC System Data | °C/°F | 91°C (195°F) |
Driver AC Duct Temp | HVAC Sensors | °C/°F | 18°C (62°F) |
Driver Htr. Duct Temp | HVAC Sensors | °C/°F | 24°C (75°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 | 244 Counts/4.8 volts |
Htr./Def./A/C Dr. Commanded | HVAC Door Positions | Counts/Volts | 244 Counts/4.8 volts |
Inside Air Temp | HVAC Sensors | °C/°F | 25°C (77°F) |
Inside Air Temp | Open/Short Data | Counts/Volts | 128 Counts/2.51 volts |
Julian Date of Build | Module Information | 3 digit numeric | varies |
Left AC Duct Temp | Open/Short Data | Counts/Volts | 159 Counts/3.12 volts |
Left Htr. Duct Temp | Open/Short Data | Counts/Volts | 141 Counts/2.78 volts |
Left Solar Sensor | Open/Short Data | Counts/Volts | 236 Counts/4.63 volts |
Left Temp Dr. Actual | HVAC Door Positions | Counts/Volts | 26-205 Counts/0.51-4.02 volts |
Left Temp Dr. Commanded | HVAC Door Positions | Counts/Volts | 24-207 Counts/0.47-4.06 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 | 245 Counts/4.80 volts |
Max Left Temp Dr. Pos | HVAC Door Calibrations | Counts/Volts | 207 Counts/4.06 volts |
Max Right Temp Dr. Pos | HVAC Door Calibrations | Counts/Volts | 220 Counts/4.31 volts |
Min Air Inlet Dr. Pos | HVAC Door Calibrations | Counts/Volts | 34 Counts/0.67 volts |
Min Left Temp Dr. Pos | HVAC Door Calibrations | Counts/Volts | 24 Counts/0.47 volts |
Min Right Temp Dr. Pos | HVAC Door Calibrations | Counts/Volts | 44 Counts/0.86 volts |
Min Htr./Def./A/C Dr. Pos | HVAC Door Calibrations | Counts/Volts | 7 Counts/.14 volts |
Outside Air Temp | HVAC Sensors | °C/°F | 24°C (75°F) |
Outside Air Temp | Open/Short Data | Counts/Volts | 82 Counts/1.61 volts |
Pass HVAC Control | HVAC System Data | Counts/Volts | 59-194 Counts/1.16-3.80 volts |
Passenger AC Duct Temp | HVAC Sensors | °C/°F | 17°C (62°F) |
Passenger Htr. Duct Temp | HVAC Sensors | °C/°F | 25°C (77°F) |
Passenger Program Number | HVAC System Data | Counts | 12-243 Counts |
Passenger Solar | HVAC Sensors | Counts | 236 Counts |
PROM ID | Module Information | 4-digit numeric | varies |
Right AC Duct Temp | Open/Short Data | Counts/Volts | 125 Counts/2.45 volts |
Right Htr. Duct Temp | Open/Short Data | Counts/Volts | 115 Counts/2.27 volts |
Right Solar Sensor | Open/Short Data | Counts/Volts | 236 Counts/4.63 volts |
Right Temp Dr. Actual | HVAC Door Positions | Counts/Volts | 46-218 Counts/0.90-4.27 volts |
Right Temp Dr. Commanded | HVAC Door Positions | Counts/Volts | 44-220 Counts/0.86-4.31 volts |
Selected Air Mode | HVAC System Data | Defrost/Defog/Upper/Bi-level/Heater/Auto | Upper |
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 | 2001 |
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 | Engine Data 2 | kPa/psi | varies |
A/C High Side Pressure | Engine Data 2 | Volts | 2.20 volts |
A/C Off for WOT | Engine Data 2 | Yes/No | No |
A/C Pressure Disable | Engine Data 2 | Yes/No | No |
A/C Relay Circuit Status | Output Driver Data | OK/Fault | OK |
A/C Relay Command | EGR Data Engine Data 1 Engine Data 2 Misfire Data | On/Off | On |
A/C Request Signal | Engine Data 2 | Yes/No | Yes |
