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Home >> Toyota >> 2019 >> Sequoia SR5, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 22 (Engine Control System (3UR-FBE) - Diagnostic Codes (4 Of 6)) >> SFI System >> DTC P144C: Open in Secondary Air Injection System Heater Control Circuit; DTC P144D: Short in Secondary Air Injection System Heater Control Circuit [08/2015 - 08/2017] >> Monitor Strategy

Monitor Strategy

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Related DTCs P144C: Air pump heater relay circuit range check (Low voltage)
P144D: Air pump heater relay circuit range check (High voltage)
Required Sensors/Components (Main) Air pump heater relay
Required Sensors/Components (Related) -
Frequency of operation Continuous
Duration 5 seconds
MIL operation Immediate
Sequence of Operation None