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

BCM Data

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition ON, Engine OFF

Battery Voltage Signal

Data

Volts

12.5

Wiper Relay Cmd.

Data

On/Off

Off

IPC Data

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition ON, Engine OFF

Windshield Washer Fluid

Data

OK/Low Fluid

Off