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Home >> Toyota >> 2020 >> Avalon Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 128 (Electronically Controlled Brake System - Diagnostic Codes (C1311-C1413) (Hybrid)) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model) >> DTC C1413: Front Speed Sensor RH Circuit Output; DTC C1414: Front Speed Sensor LH Circuit Output [04/2018 -] >> Monitor Description

Monitor Description

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

The skid control ECU (brake booster with master cylinder assembly) monitors the output value of the speed sensors. When the vehicle is being driven and a sudden irregular change in acceleration due to iron particles being attached to the speed sensor is detected repeatedly, or periodic sudden changes in acceleration due to iron particles being attached to the speed sensor rotor is detected, the skid control ECU (brake booster with master cylinder assembly) judges that speed sensor noise is occurring and illuminates the MIL and stores a DTC.

Also, when the vehicle is being driven and the output value of the speed sensor is momentarily interrupted repeatedly, the skid control ECU (brake booster with master cylinder assembly) judges that there is a momentary interruption in the speed sensor circuit and illuminates the MIL and stores a DTC.

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