For 1990-2009 cars

Table 1: | Body Control Module (BCM)
Table 2: | Electronic Brake Control Module (EBCM)

#### Body Control Module (BCM)

Ignition ON, engine OFF, park brake released.
Scan Tool Parameter | Data List | Units Displayed | Typical Data Value
--- | --- | --- | ---
Park Brake Switch | BCM Data | Off/On | Off

#### Electronic Brake Control Module (EBCM)

Ignition ON, engine OFF, park brake released.
Scan Tool Parameter | Data List | Units Displayed | Typical Data Value
--- | --- | --- | ---
Brake Warning Lamp | ABS Data | Off/On | Off