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.
Diagnostic Mode 09 - Read Vehicle Information
Diagnostic Mode 09 makes it possible to access vehicle-specific information from the ECM and the TCM (where applicable).
Depending on scan tool and protocol used, Diagnostic Mode 09 and the information provided may be referred to by a different name.
Test requirement
- No DTCs stored in the DTC memory.
Procedure
-- Connect the scan tool.
-- Switch the ignition on.
-- Select Mode 09: Vehicle information.
-- Select the desired Test-ID.
-- The information requested will be displayed on the scan tool screen.
The following table is a numerical list of all Test-IDs that may be selected.
| Test-ID | Diagnostic text |
|---|---|
| 02: | Vehicle identification number e.g. |
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| 04: | Calibration identification e.g. |
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| 06: | CVN (check sum) e.g. |
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| Service $0A | Request Emission Related DTC's with Permanent Status - SUPPORTED |
-- Switch the ignition off.
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.