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2007
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LX 470
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Repair and Diagnosis
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Engine Performance
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Engine Control System (2UZ-FE)
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SFI System
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DTC P1440 Secondary Air Injection Vacuum Switching Valve Circuit Malfunction Bank 1; DTC P1443 Secondary Air Injection Vacuum Switching Valve Circuit Malfunction Bank 2
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Typical Malfunction Thresholds
Typical Malfunction Thresholds
P1440:
TYPICAL MALFUNCTION THRESHOLDS
No. 2 air switching valve (bank 1) output terminal level
Low
P1443:
TYPICAL MALFUNCTION THRESHOLDS
No. 2 air switching valve (bank 2) output terminal level
Low