GM Service Manual Online
For 1990-2009 cars only
Table 1: Rollover Sensor Scan Tool Data Parameters
Table 2: Rollover Sensor Scan Tool Output Controls

Rollover Sensor Scan Tool Data Parameters

Parameter

Expected Value

Definition

Operating Conditions: Ignition ON

Average Speed

Varies

This displays km/h (mph). This is the average speed of the vehicle.

Battery Voltage Signal

Varies

This displays volts. This is the voltage input supplied to the rollover sensor.

Current Power Mode

Run

The scan tool displays Off, Accessory, Run or Crank Request. This is the state of the ignition switch.

Engine Virtual Device

Present

The scan tool displays Present or Not Present.

Primary Key Status

Valid

The scan tool displays Unknown, Valid or Invalid. This is the state of the primary key.

Received Primary Key

Varies

The scan tool displays the primary key received.

ROS Occupant Containment Req.

Enable

The scan tool displays Reserved, Disable or Enable.

ROS Primary Key

Varies

The scan tool displays the ROS primary key.

SDM Occupant Containment Status

Enabled

The scan tool displays Disabled or Enabled.

Vehicle Speed Status

Valid

The scan tool displays Valid or Invalid. This is the state of the vehicle speed.

Rollover Sensor Scan Tool Output Controls

Scan Tool Output Control

Description

Setup New ROS

This procedure should be used after a new rollover sensor has been installed.