Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Scan Tool Data List - Wiring Systems and Power Management
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 |
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.