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Home >> Toyota >> 2019 >> Sequoia SR5, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 17 (Engine Control System (3UR-FBE) - Diagnostic Codes (2 Of 6)) >> SFI System >> DTC P0412: Secondary Air Injection System Switching Valve "A" Circuit; DTC P0415: Secondary Air Injection System Switching Valve "B" Circuit [08/2015 - 08/2017] >> Typical Enabling Conditions

Typical Enabling Conditions

WARNING: This page is about a different car, the 2018 Toyota Sequoia, 2017 Toyota Sequoia, and 2016 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
CASE 1:

Monitor runs whenever following DTCs not stored -
Secondary air injection pump Operating
Secondary air injection switching valve Operating
Battery voltage 8 V or more
Ignition switch ON
Starter OFF
CASE 2:

Monitor runs whenever following DTCs not stored -
Secondary air injection pump Not operating
Secondary air injection switching valve Not operating
Battery voltage 8 V or more
Ignition switch ON
Starter OFF