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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 P0036-12: HO2S Heater Control Circuit Bank 1 Sensor 2 Circuit Short to Battery; DTC P0036-13: A/F (O2) Heater Control Circuit Bank 1 Sensor 2 Circuit Open; DTC P102A-9E: O2 Sensor Heater Performance Bank 1 Sensor 2 Stuck On [12/2019 - 10/2022] >> Typical Malfunction Thresholds

Typical Malfunction Thresholds

WARNING: This page is about a different variant/trim than selected.
P0037

Heater on current Less than 0.8 A
P0038

Either of the following conditions is met -
Heater on current detected by heater monitor IC More than 13 A
Heater on voltage detected by heater monitor IC [Auxiliary battery voltage x 0.1] V or higher
P102D

Heater off voltage detected by heater monitor IC [Auxiliary battery voltage x 0.33] V or less
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