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Highlander Hybrid
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Engine Performance
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Engine Control System (Hybrid)
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SFI System
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DTC P0604 Internal Control Module Random Access Memory (RAM) Error
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Monitor Strategy
Monitor Strategy
MONITOR STRATEGY
Related DTC
P0604: ECM (included in the hybrid vehicle control ECU) RAM error
Required Sensors/Components
ECM (included in the hybrid vehicle control ECU)
Frequency of Operation
Continuous
Duration
Within 1 second
MIL Operation
Immediate
Sequence of Operation
None