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GX 470
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Engine Control System
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SFI System
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DTC P0412 Secondary Air Injection System Switching Valve "A" Circuit
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Monitor Strategy
Monitor Strategy
MONITOR STRATEGY
Related DTCs
P0412 Air switching valve circuit malfunction (Secondary air injection system)
Required sensors/components
Air injection control driver, Air switching valve
Frequency of operation
Continuous
Duration
3 seconds
MIL operation
Immediate
Sequence operation
None