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Home >> Lexus >> 2017 >> GX 460 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostic Codes) (3 Of 7) >> SFI System >> DTC P0418: Secondary Air Injection System Control "A" Circuit [08/2015 - 08/2018] >> Typical Enabling Conditions

Typical Enabling Conditions

CASE 1

Monitor runs whenever following DTCs not present None
Secondary air injection pump Operating
Secondary air injection switching valve Operating
Battery voltage 8 V or higher
Engine switch On (IG)
Starter OFF
CASE 2

Monitor runs whenever following DTCs not present None
Secondary air injection pump Not operating
Secondary air injection switching valve Not operating
Battery voltage 8 V or higher
Engine switch On (IG)
Starter OFF