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Home >> Lexus >> 2008 >> GX 470 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> SFI System >> DTC P0418 Secondary Air Injection System Control "A" Circuit >> Typical Enabling Conditions
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Typical Enabling Conditions

All: 

TYPICAL ENABLING CONDITIONS

The monitor will run whenever this DTC is not present None

Case 1: 

TYPICAL ENABLING CONDITIONS

Air pump Operating
Air switching valve Operating
Battery voltage 8 V or more
Ignition switch ON
Starter OFF

Case 2: 

TYPICAL ENABLING CONDITIONS

Air pump Not operating
Air switching valve Not operating
Battery voltage 8 V or more
Ignition switch ON
Starter OFF