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Home >> Chevrolet >> 2005 >> Chevy Express G3500, Van Passenger Extended >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Computer/Integrating Systems >> Diagnostic Information and Procedures >> Scan Tool Data Definitions

Scan Tool Data Definitions

Accessory Switch

Input from ignition switch Accessory circuit. Used to determine power mode. Hot in ACC and ON.

Battery Voltage

The scan tool displays 0.0-16.0 volts. The battery voltage input represents the system voltage measured at the BCM ignition feed input.

Cargo Door Ajar Switch

Input from the cargo door showing the state of it.

Driver/Passenger Door Ajar Sw.

Input from the respecting door indicating door status.

GM Part Number

The module's part number.

Ignition Unlock

Input to the control module from the ignition switch indicating the Ignition 0 position. Switch closed (HOT) in ignition switch positions UNLOCK, ACC, ON, and START.

Run/Crank

Input to the control module from the ignition switch indicating the Ignition 1 position. Switch closed (HOT) in ignition switch positions ON and START.

Key in Ignition

Input from ignition switch indicating that the ignition key is inserted into the ignition switch. HOT with key in ignition switch.

Julian Date of Build

The day of the year when module was built.

RAP Relay

Output indicating the state of the RAP relay. It is On for all power modes except Off Awake.

Year Module Built

The year when module was built.