Mike's Workshop Manuals
: Service manuals for every vehicle
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Scion
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2012
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xB Automatic Trans
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Repair and Diagnosis
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Engine Performance
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System
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Engine Control System (Diagnostic Codes (P0420-P1605))
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SFI System
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DTC P0604: Random Access Memory (RAM)
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Typical Malfunction Thresholds
Typical Malfunction Thresholds
Main CPU and sub CPU mirroring
Fail