GM Service Manual Online
For 1990-2009 cars only
Table 1: EBCM
Table 2: IPC

EBCM

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition ON, engine OFF, and brake fluid level normal

Brake Fluid Level Status

--

OK/Low

OK

Brake Pressure Sensor

--

psi

0

Brake Pressure Sensor

--

Volts

0

IPC

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition ON and engine OFF

Brake Warning Indicator

--

On/Off

Off