For 1990-2009 cars

#### Digital Radio Receiver (DRR)

Scan Tool Parameter | Data List | Units Displayed | Typical Data Value
--- | --- | --- | ---
Operating Conditions: Ignition ON/Engine Running
Battery Voltage | Data Display | Volts | 13.9 Volts

#### Electronic Brake Control Module (EBCM)

Scan Tool Parameter | Data List | Units Displayed | Typical Data Value
--- | --- | --- | ---
Operating Conditions: Ignition ON/Engine Running
Battery Voltage Signal | Data Display/ABS Data | Volts | 13.9 Volts

#### Engine Control Module (ECM)

Scan Tool Parameter | Data List | Units Displayed | Typical Data Value
--- | --- | --- | ---
Operating Conditions: Ignition ON/Engine OFF
Crank Request Signal | ECM, Data Display, Electrical/Theft Data | Yes/No | No
EPM Inhibit Reason | ECM, Data Display, Electrical/Theft Data | None, DLC Override, Fuel Demand, OBD Demand, MAF Demand, Deact Demand, TCM Demand | None
GEN F-Terminal Signal | ECM, Data Display, Electrical/Theft Data | % | 0%
GEN L-Terminal Circuit Status | ECM, Data Display, Electrical/Theft Data | Incomplete, Short Gnd/Open, Short to B+, OK | OK
GEN L-Terminal Signal Command | ECM, Data Display, Electrical/Theft Data | On/Off | Off
Ignition 1 Signal | ECM, Data Display, Electrical/Theft Data | Volts | Varies
Ignition Accessory Signal | ECM, Data Display, Electrical/Theft Data | On/Off | On
PNP Switch (If Equipped) | ECM, Data Display, Electrical/Theft Data | Park/Neutral/In Gear | Park
Starter Relay Command | ECM, Data Display, Electrical/Theft Data | On/Off | Off

#### Transmission Control Module (TCM)

Scan Tool Parameter | Data List | Units Displayed | Typical Data Value
--- | --- | --- | ---
Operating Conditions: Ignition ON/Transmission in Park
TR Sw. | Engine Electrical | Invalid, Park, Reverse, Neutral, Drive 5, Drive 4, Drive 3, Drive 2, Drive 1 | Park