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IS 250 RWD, Automatic
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Different car
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Section 173 (Engine Control System - SFI System Diagnostics (3 Of 4))
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DTC P0604 Random Access Memory (RAM)
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Typical Malfunction Thresholds
Typical Malfunction Thresholds
WARNING:
This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.
TYPICAL MALFUNCTION THRESHOLDS CHART
Main CPU and sub CPU mirroring
Fail