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.
Freeze Frame Data
ECM records the engine status at detection when it detects DTCs. (Freeze frame data)
Freeze frame data is recorded on up to a second detected DTC, and not recorded on a third detected DTC and later.
- As the freeze frame data is recorded with DTC detected, permanent monitoring cannot be performed.
- For the first detected DTC, time series freeze frame data is recorded. Ref. to ENGINE (DIAGNOSTICS) (H4DO)>FREEZE FRAME DATA>NOTE>TIME SERIES FREEZE FRAME DATA .
- When performing diagnosis, you can utilize the freeze frame data to guess the vehicle status when the DTC was detected.
- For detailed operation procedures, refer to "Common (Diagnostics)". Ref. to COMMON (DIAGNOSTICS)>FREEZE FRAME DATA>OPERATION .
Use the Manual With the Right Hardware
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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.
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