DSD Information System
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Toyota
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2021
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Highlander LE, 4WD
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Repair and Diagnosis
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Different variant/trim
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Section 49 (Engine Control System (A25A-FXS) - Diagnostic Codes (P0010-P0030))
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SFI System
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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 [12/2019 - 10/2022]
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Typical Malfunction Thresholds
Typical Malfunction Thresholds
WARNING:
This page is about a different variant/trim than selected.
P0031
Heater on current
Less than 0.8 A
P0032
Heater on current
More than 11.5 A
P101D
Heater terminal voltage level while heater off
Low