| Table 1: | Dash Integration Module (DIM) |
| Table 2: | Instrument Panel Integration Module (IPM) |
| Table 3: | PCM Scan Tool Data List |
| Table 4: | Rear Climate Control Panel 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: Ignition ON/Engine OFF/Driver seat belt buckled | |||
8-Digit GM Part Number | Module Information 2 | Numeric | varies |
A/C Clutch (Actual) | A/C Information | On/Off | Off |
A/C Clutch (Desired) | A/C Information | On/Off | Off |
Battery Saver - History | Data | Active/Inactive | Inactive |
Battery Voltage | Data | Volts | 12.8 V |
Calibration ID | Module Information 1 | Numeric | varies |
Clutch Voltage | A/C Information | Normal/Low | Normal |
Component Serial # 8-11 | Module Information 2 | Numeric | varies |
Component Serial # 12 | Module Information 2 | Numeric | varies |
Component Serial # 13-16 | Module Information 2 | Numeric | varies |
Component Serial # 17-18 | Module Information 2 | Numeric | varies |
Control Head (Desired) | A/C Information | A/C Off/ A/C On | A/C Off |
Control Power | Outputs | On/Off | Off |
Coolant Temperature | Data | °C/°F | varies |
Daytime Running Lamp | Outputs | On/Off | Off |
Evaporator Temp | A/C Information | °C/°F | varies |
Evaporator Temp Status | A/C Information | Cold/OK | OK |
Flash to Pass Switch | Inputs | On/Off | Off |
Front Foglamp Relay | Outputs | On/Off | Off |
Head Lamp Switch | Inputs | On/Off | Off |
High Beam Output (Flash to Pass) | Outputs | On/Off | Off |
High Beam Switch/Relay | Inputs | On/Off | Off |
Hood Jamb Switch | Inputs | On/Off | Off |
Horn (Except SWC) | Outputs | On/Off | Off |
Ignition Accessory | Inputs | Active/Inactive | Inactive |
Ignition 1 | Inputs | Active/Inactive | Active |
Ignition 3 | Inputs | Active Inactive | Active |
Ignition Switch | Inputs | RAP/ RAP_Unlock/ Accy/ Run/ Crank | Run |
Ignition Unlock | Inputs | Active/Inactive | Active |
Incandescent Dim #1 | Outputs | % | 0% |
Interior Temp. Sensor Fan | Outputs | On/Off | Off |
Julian Date of Build | Module Information 1 | Numeric | varies |
Lights On With Wipers | Inputs | On/Off | Off |
Low/High Beam Output | Outputs | On/Off | Off |
Park Lamp | Inputs | On/Off | Off |
Park Lamp Relay Output | Outputs | On/Off | Off |
Position Lamp Relay | Outputs | On/Off | Off |
Pressure Status | A/C Information | Low/Normal/High | Normal |
Prom ID | Module Information 1 | Numeric | varies |
Reverse Lockout Drive | Outputs | On/Off | Off |
Steering Wheel Controls A/D | Inputs | Counts | varies |
Steering Wheel Control Feed Voltage | Data | Volts | 12.0 Volts |
Temperature Status | A/C Information | OK/Hot | OK |
Theft Lighting | Outputs | On/Off | Off |
Trans Fluid Temp | Data | °C/°F | 170°F |
Vehicle Speed | Data | Mph/Kmh | varies |
Wiper Switch | Inputs | On/Off | Off |
Year Module Built | Module Information 1 | Year | varies |
Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
Operating Conditions: Ignition ON/Engine OFF/Driver seat belt buckled | |||
8-Digit GM Part Number | Module Information | Numeric | varies |
A/C Requested | HVAC System Data | Yes/No | Yes |
Air Inlet Cal Status | HVAC Door Calibrations | Cal OK/Low req/High req | Cal OK |
Air Inlet Dr Range | HVAC Door Calibrations | Pulses | varies |
Air Inlet Dr Actual | HVAC Door Positions | Counts | varies |
Air Inlet Dr Commanded | HVAC Door Positions | Counts | varies |
Calibration ID | Module Information | Numeric | varies |
Command Blower | HVAC System Data | % | varies |
Component Serial Number | Module Information | Numeric | varies |
Coolant Temperature | HVAC System Data | °C/°F | varies |
Door Move Counter | HVAC Door Calibrations | Pulses | varies |
Front Fog Lamp Switch | Non-HVAC Data | On/Off | Off |
Fuel Door Release Sw | Non-HVAC Data | On/Off | Off |
Hazard Lamp Switch | Non-HVAC Data | On/Off | Off |
Htr./Def./AC Door Cal Status | HVAC Door Calibrations | Cal OK/High req/Low req | Cal OK |
Htr/Def/AC Door Range | HVAC Door Calibrations | Pulses | varies |
Htr./Def./AC Dr Actual | HVAC Door Positions | Counts | varies |
Htr./Def./AC Dr Commanded | HVAC Door Positions | Counts | varies |
Htr./Def./AC Temp Door Status | HVAC Door Calibrations | Cal OK/High req/Low req | Cal OK |
HUD Dimming | Non-HVAC Data | On/Off | Off |
Ignition 3 Input | Non-HVAC Data | Active/Inactive | Active |
Ignition Counter | Non-HVAC Data | Counts | varies |
Inside Air Temp | HVAC Sensors | °C/°F | varies |
Inside Air Temp | Open/Short Data | Counts/volts | varies |
Interior Dim Pot | Open/Short Data | Counts | varies |
Interior Lamp Switch | Non-HVAC Data | On/Auto | Auto |
Julian Date of Build | Module Information | Numeric | varies |
Key In Ignition | Non-HVAC Data | Yes/No | Yes |
Left AC Duct Temp | HVAC Sensors | °C/°F | varies |
Left AC Duct Temp | Open/Short Data | Counts/volts | varies |
Left Cal Status | HVAC Door Calibrations | Cal OK/High req/Low req | Cal OK |
Left A/C Duct Temp Desired | HVAC Sensors | °C/°F | varies |
Left Htr Duct Temp | HVAC Sensors | °C/°F | varies |
Left Htr. Duct Temp. | Open/Short Data | Counts/volts | varies |
Left Program Number | HVAC System Data | Counts | varies |
Left Solar | HVAC Sensors | Counts | varies |
Left Solar Sensor | Open/Short Data | Counts | varies |
Left Temp Dr Actual | HVAC Door Positions | Counts | varies |
Left Temp Dr Commanded | HVAC Door Positions | Counts | varies |
Left Temp Dr Range | HVAC Door Calibrations | Pulses | varies |
Load Reduction Active | HVAC System Data | Yes/No | No |
Outside Air Temp | HVAC Sensors | °C/°F | varies |
Outside Air Temp | Open/Short Data | Counts/volts | varies |
Prom ID | Module Information | Numeric | varies |
Rear Cal Status | HVAC Door Calibrations | Cal OK/High req/Low req | Cal OK |
Rear Duct Temp | HVAC Sensors | °C/°F | varies |
Rear Duct Temp | Open/Short Data | Counts/volts | varies |
Rear Duct Temp Desired | HVAC Sensors | °C/°F | varies |
Rear Fog Lamp Switch | Non-HVAC Data | On/Off | Off |
Rear Program Number | HVAC System Data | Counts | varies |
Rear Temp Dr Range | HVAC Door Calibrations | Pulses | varies |
Rear Temp Dr Actual | HVAC Door Positions | Counts | varies |
Rear Temp Dr Commanded | HVAC Door Positions | Counts | varies |
Right AC Duct Temp | HVAC Sensors | °C/°F | varies |
Right AC Duct Temp | Open/Short Data | Counts/volts | varies |
Right Cal Status | HVAC Door Calibrations | Cal OK/High req/Low req | Cal OK |
Right Duct Temp Desired | HVAC Sensors | °C/°F | varies |
Right Htr Duct Temp | HVAC Sensors | °C/°F | varies |
Right Htr Duct Temp | Open/Short Data | Counts/volts | varies |
Right Program Number | HVAC System Data | Counts | varies |
Right Solar | HVAC Sensors | Counts | varies |
Right Solar Sensor | Open/Short Data | Counts | varies |
Right Temp Dr Range | HVAC Door Calibrations | Pulses | varies |
Right Temp Dr Actual | HVAC Door Positions | Counts | varies |
Right Temp Dr Commanded | HVAC Door Positions | Counts | varies |
Selected Air Mode | HVAC System Data | Auto/Defog/ Upper/ Bi-Level/ Heater/Defrost | Auto |
System Program Number | HVAC System Data | Counts | varies |
TCS Switch | Non-HVAC Data | On/Off | Off |
Trunk Release Switch | Non-HVAC Data | On/Off | Off |
Twilight Delay Pot | Open/Short Data | Counts | varies |
Twilight Photocell | Open/Short Data | Counts | varies |
Vehicle Speed | HVAC System Data | Mph/Kmh | varies |
Year Module Built | Module Information | Year | 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 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) | |||
8 Digit GM Part Number | Module Information | 8 digit alphanumeric | 25687287 |
Auto Mode (front) | HVAC System Data | A/C/Bi-Level/Heater/Off | varies |
Calibration ID | Module Information | 4 digit numeric | 0404 |
Component Serial #13-16 | Module Information | 4 digit numeric | 0279 |
Component Serial #17-18 | Module Information | 2 digit numeric | 28 |
Fan High | Outputs | Active/Inactive | varies |
Fan Low | Outputs | Active/Inactive | varies |
Fan Medium | Outputs | Active/Inactive | varies |
Fan Medium High | Outputs | Active/Inactive | varies |
Julian Date of Build | Module Information | 3 digit numeric | varies |
Mode Dr. Commanded | Outouts | Counts | 0-255 |
PROM ID | Module Information | 4 digit numeric | 0807 |
Rear Blower | HVAC System Data | RAM Air/High/Med. High/Medium/Low | varies |
Rear Mode | HVAC System Data | A/C/ Bi-Level/ Heater/ Auto/ Off | varies |
Rear Temp Offset | HVAC System Data | -4 to +4 | varies |
Year Module Built | Module Information | 4 digit numeric | 1999 |
