For 1990-2009 cars

Use the scan tool data display values and definitions information in order to assist in diagnosing vehicle malfunctions. Compare the vehicles actual scan tool data with the typical data display value table information. Use the information in order to aid in understanding the nature of the concern when the vehicle data does not match the typical data display values.

The scan tool data values were taken from a known good vehicle under the following conditions:

• | The ignition switch is in the Run position.

• | The engine is not running.

• | The vehicle is in PARK.

Scan Tool Parameter | Data List | Units Displayed | Typical Data Value
--- | --- | --- | ---
Operating Conditions: Ignition ON, Engine OFF
Accy/RAP Relay Command | Power Mode | On/Off | On
Battery Voltage | Charging Info | Volts | Varies
Current Power Mode | Power Mode | Off/Accessory/Run/Crank Request | Run
HS Comm. Cmd. | Outputs | On/Off | On
Ign. Off/Run/Crank | Power Mode | Key Out/ACC Key In/Off Crank Run | Run
Ignition Accessory/Run | Power Mode | Active/Inactive | Active
Ignition Run/Crank | Power Mode | Active/Inactive | Active
Key in Ignition Status | Power Mode | Key Out/Key In | Key In
Powertrain HS Comm. Cmd. | Outputs | On/Off | On
Run/Crank Relay Command | Power Mode | On/Off | On