For 1990-2009 cars

Table 1: | Body Control Module (BCM)
Table 2: | Electronic Control Module (ECM)
Table 3: | Immobilizer

#### Body Control Module (BCM)

Scan Tool Parameter | Data List | Units Displayed | Typical Data Value
--- | --- | --- | ---
Operating Condition: Ignition ON/Engine OFF
2nd to Last Alarm Cause | Theft Deterrent | None/Trunk/Doors/ Ignition/Battery | Varies
3rd to Last Alarm Cause | Theft Deterrent | None/Trunk/Doors/ Ignition/Battery | Varies
4th to Last Alarm Cause | Theft Deterrent | None/Trunk/Doors/ Ignition/Battery | Ignition
5th to Last Alarm Cause | Theft Deterrent | None/Trunk/Doors/ Ignition/Battery | Battery
6th to Last Alarm Cause | Theft Deterrent | None/Trunk/Doors/ Ignition/Battery | Varies
7th to Last Alarm Cause | Theft Deterrent | None/Trunk/Doors/ Ignition/Battery | Varies
8th to Last Alarm Cause | Theft Deterrent | None/Trunk/Doors/ Ignition/Battery | Varies
Door Jamb Switch | Inputs | On/Off | Off
Door Unlock Output | Outputs | Active/Inactive | Inactive
Driver Unlock Output | Outputs | Active/Inactive | Inactive
Exterior Lamp Output | Outputs | Active/Inactive | Inactive
Horn Output | Outputs | Active/Inactive | Inactive
Key Disarm Input | Inputs | On/Off | Off
Key In Ignition | Inputs | Yes/No | Yes
Last Alarm Cause | Theft Deterrent | None/Trunk/Doors/ Ignition/Battery | Doors
Security Lamp Output | Outputs | Active/Inactive | Inactive
Theft Deterrent | Theft Deterrent | Off/Idle/Arm Delay/Armed/Alarm | Idle
Trunk Jamb Switch | Inputs | On/Off | Off

#### Electronic Control Module (ECM)

Scan Tool Parameter | Data List | Units Displayed | Typical Data Value
--- | --- | --- | ---
Operating Condition: Ignition ON/Engine OFF
Theft Deterrent Status | Engine Data | Correct Code/Incorrect Code/No Immobilizer | Correct Code

#### Immobilizer

Scan Tool Parameter | Data List | Units Displayed | Typical Data Value
--- | --- | --- | ---
Operating Condition: Ignition ON/Engine OFF
Display Key Cylinder Number | Special Functions | Numeric | Varies
Display VIN | Special Functions | Numeric | Varies
Engine Request | Data Display |  |
Erase Transponder-Keys | Special Functions |  |
Ignition Status | Data Display |  |
Immobilizer Relay Output Test | Special Functions |  |
Immobilizer Signal | Data Display |  |
MIL | Data Display | On/Off | Off
Program Engine Type | Special Functions | Numeric | Varies
Program Immobilizer | Special Functions | Numeric | Varies
Program Key Cylinder Number | Special Functions | Numeric | Varies
Program Transponder-Key | Special Functions | Numeric | Varies
Program VIN | Special Functions | Numeric | Varies
Security Wait Time | Data Display | Numeric | Varies
Transponder-Key | Data Display | Numeric | Varies
Transponder-Key 1 Status | Data Display |  |
Transponder-Key 2 Status | Data Display |  |
Transponder-Key 3 Status | Data Display |  |
Transponder-Key 4 Status | Data Display |  |
Transponder-Key 5 Status | Data Display |  |
Transponder-Key Status | Data Display |  |
Vehicle Speed | Data Display | Km/h--/mph | Varies
Vehicle Speed Signal | Data Display | Numeric | Varies