For 1990-2009 cars

#### Body Control Module (BCM)

Scan Tool Parameter | Data List | Units Displayed | Typical Data Value
--- | --- | --- | ---
Operating Conditions: Ignition ON/Engine OFF/Vehicle in PARK/Headlamps in AUTO
CTD Status | Theft Data | Current State | Disarmed
Current CTD Trigger | Theft Data | Event | None
Hood Closed Switch | Theft Data | Active/Inactive | Active
Hood Open Switch | Theft Data | Active/Inactive | Inactive
Theft LED | Theft Data | Current State | Off

#### Theft Deterrent Module

Scan Tool Parameter | Data List | Units Displayed | Typical Data Value
--- | --- | --- | ---
Operating Conditions: Ignition ON/Engine OFF/Vehicle in PARK/Headlamps in AUTO
Power Mode | TDM Data | Current State | Run
Ignition Voltage Signal | TDM Data | Not Present/Present | Present
TDM State | TDM Data | Event | Normal
Previous TDM State | TDM Data | Event | Normal
Telltale Status | TDM Data | Current State | On
Immobilization | TDM Data | Active/Inactive | Inactive
Start Disabled | TDM Data | Yes/No | No
Tamper Status | TDM Data | Active/Inactive | Inactive
Theft Problem | TDM Data | Yes/No | No
Auto Learn Counter | TDM Data | Counts | Varies
Auto Learn Timer | TDM Data | min | Varies
Total Keys Learned | Learn Key Data | Counts | Varies
Master Keys Learned | Learn Key Data | Counts | Varies
Valid Key | Learn Key Data | Yes/No | Yes
Transponder Key | Learn Key Data | Present/Not Present | --
Fleet Vehicle | Learn Key Data | Yes/No | --
Learn Coded Key | Learn Key Data | Yes/No | No
PCM Password Learning | Powertrain Status | Enabled/Disabled | Disabled
PCM Auto. Learn Timer | Powertrain Status | Active/Inactive | Inactive
Powertrain DTC | Powertrain Status | Yes/No | No
Security Code Programmed | Powertrain Status | Yes/No | Yes
Immobilizer Programmed | Powertrain Status | Yes/No | Yes