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Toyota
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2009
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Highlander Base, 2.7 A
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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 (1AR-FE) - DTC P0504 - P0657
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DTC P0607 Control Module Performance
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Typical Malfunction Thresholds
Typical Malfunction Thresholds
TYPICAL MALFUNCTION THRESHOLDS CHART
Heated oxygen sensor transistors
Fail