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Home >> Toyota >> 2004 >> 4Runner Limited, 4.7 T, RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (SFI) (2UZ-FE) - Diagnostics >> DTC P0504 >> Inspection Procedure >> Notes

Inspection Procedure: Notes

NOTE: Read freeze frame date using the hand held tester or the OBD II scan tool. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, freeze frame data can held determine if the vehicle was funning to stopped, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.