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
The scan tool data lists contain all the instrument panel, gages, and console related parameters that are available on the scan tool. The parameters in the list are arranged in alphabetical order. The data list column indicates the location of the parameter within the scan tool menu selections.
Use the scan tool data lists as directed by a diagnostic table or in order to supplement the diagnostic procedures. Begin all of the diagnostic procedures with the Diagnostic System Check - Vehicle in Vehicle DTC Information.
Use the scan tool data lists only after the following is determined:
- There is no published DTC procedure nor published symptom procedure for the customer concern.
- The DTC or symptom procedure indicated by the diagnostic system check does not resolve the customer concern.
The typical data values are obtained from a properly operating vehicle under the conditions specified in the first row of the scan tool data list table. Comparison of the parameter values from the suspect vehicle with the typical data values may reveal the source of the customer concern.
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Operating Conditions: Ignition ON/Engine OFF/Seat Belt Buckled/High Beams OFF/Park Brake Unapplied | |||
| Ambient Air Temp. Sensor | HVAC Data | Volts | Varies |
| Battery Voltage Signal | Keyless/Remote Start Data | Volts | Varies |
| Brake Fluid Level Sensor | Chassis Data | Low/OK | OK |
| DIC Switch | Chassis Data | Clear/Menu/Info/Reset | Clear |
| Driver Door Ajar Switch | Keyless/Remote Start Data | Door Closed/Door Ajar | Door Closed |
| Key In Ignition Cylinder Switch | Keyless/Remote Start Data | Yes/No | Yes |
| Headlamp Off Switch | Lighting Data | Off/On | Off |
| Headlamp On Switch | Lighting Data | Off/On | Off |
| Park Lamp Switch | Lighting Data | Off/On | Off |
| Trunk Ajar Switch | Keyless/Remote Start Data | Trunk Closed/Trunk Ajar | Trunk Closed |
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Operating Conditions: Ignition ON/Engine OFF/Seat Belt Buckled/High Beams OFF/Park Brake Unapplied | |||
| Battery Voltage Signal | IPC Data | Volts | Varies |
| Chime | IPC Data | Off/On | Off |
| DIC Information Switch | IPC Data | Inactive/Active | Inactive |
| DIC Switch Input | IPC Data | Volts | Varies |
| Ignition 1 Input | IPC Data | Inactive/Active | Active |
| Menu Switch | IPC Data | Off/On | Off |
| Reset Switch | IPC Data | Inactive/Active | Inactive |
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Operating Conditions: Engine Idling/Normal Operating Temperature | |||
| Cruise Control Active | ECM/PCM IPC Data | Yes/No | No |
| ECT Sensor | ECM/PCM IPC Data | Celsius (Fahrenheit) | Varies 8 -105°C (185-220°F) |
| Engine Oil Level Switch | ECM IPC Data | OK/Low | OK |
| Engine Oil Pressure Switch | ECM/PCM IPC Data | OK/Low | OK |
| Engine Oil Temperature Calculated | ECM IPC Data | Celsius (Fahrenheit) | Varies w/oil temperature |
| Engine Speed | ECM/PCM IPC Data | RPM | +/-100 RPM from Desired Idle Speed |
| Fuel Level Sensor | ECM/PCM IPC Data | Volts | 0-5 Volts Varies w/fuel level |
| Fuel Tank Level Remaining | ECM/PCM IPC Data | Percent (%) | 0-100% Varies w/fuel level |
| Ignition Accessory Signal | ECM/PCM IPC Data | On/Off | Off |
| Ignition 1 Signal | ECM/PCM IPC Data | Volts | 9-16 Volts Varies |
| MIL Command | ECM/PCM IPC Data | On/Off | Off |
| Non-Driven Wheel Speed | ECM IPC Data | km/h (mph) | 0 km/h (0 mph) |
| Odometer | ECM IPC Data | kilometers (miles) | Varies |
| Reduced Engine Power | ECM/PCM IPC Data | Inactive/Active | Inactive |
| Vehicle Speed Sensor | ECM/PCM IPC Data | km/h (mph) | 0 km/h (0 mph) |
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.