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Home >> Subaru >> 2021 >> Crosstrek Limited >> Repair and Diagnosis (Single Page) >> Brakes >> Anti-Lock Brakes >> Electric Brake Booster System (Diagnostics) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC C0503 Left Front Wheel Speed Sensor Circuit High >> General Description >> Diagnostic Method

Diagnostic Method

The LF speed sensor power source voltage is high.

JUDGMENT VALUE SPECIFICATION

Malfunction Criteria Threshold Value
LF Wheel Speed Sensor Voltage More than 3.7 V

Time needed for diagnosis:  530 ms

Malfunction indicator light illumination:  Illuminates as soon as a malfunction occurs.