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Home >> Lexus >> 2012 >> IS 350 Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 16 (Engine Control System (Diagnostic Codes (P0190-P062F))) >> SFI System >> DTC P0604: Internal Control Module Random Access Memory (RAM) Error >> Inspection Procedure
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Inspection Procedure

WARNING: This page is about a different car, the 2012 Lexus IS 250. However, it is still accessible from the selected car via links, so may be relevant.

HINT: 

Read freeze frame data using Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air/fuel ratio was lean or rich, as well as other data recorded at the time of a malfunctionRefer to FREEZE FRAME DATA .