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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 71 (Engine Control System (A25A-FXS) - Diagnostic Codes (P0030-P008B)) >> SFI System >> DTC P0030-12: HO2S Heater Control Bank 1 Sensor 1 Circuit Short to Battery; DTC P0030-13: HO2S Heater Control Bank 1 Sensor 1 Circuit Open; DTC P101A-9E: A/F Sensor Heater Performance Bank 1 Sensor 1 Stuck On [11/2023 - ] >> Monitor Strategy

Monitor Strategy

WARNING: This page is about a different variant/trim than selected.
Related DTCs P0031: Air fuel ratio sensor (sensor 1) heater range check (low current)
P0032: Air fuel ratio sensor (sensor 1) heater range check (high current)
P101D: Air fuel ratio sensor (sensor 1) heater performance
Required Sensors/Components (Main) Air fuel ratio sensor (sensor 1) heater
Required Sensors/Components (Related) -
Frequency of Operation Continuous
Duration 10 seconds: P0031 and P0032
5 seconds: P101D
MIL Operation Immediate
Sequence of Operation None
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