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Home >> Toyota >> 2020 >> Avalon Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 82 (Electric Parking System - Diagnostic Codes & Symptom Tests (Hybrid)) >> ELECTRIC PARKING BRAKE SYSTEM (for HV Model) >> DTC C13A1: Short circuit in Power source circuit [04/2018 - 08/2021] >> Description

DTC C13A1: Short circuit in Power source circuit [04/2018 - 08/2021]: Description

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

C13A1 is stored if the power supply relay in the parking brake ECU assembly has a short circuit.

C13A1 is stored if the power switch is off and a voltage of 2.5 V or higher is applied to the IG terminal and an electric parking brake switch assembly malfunction or wire harness malfunction between the switch and ECU occurs.

DTC No. Detection Item DTC Detection Condition Trouble Area Memory Note
C13A1 Short circuit in Power source circuit Both of following conditions are met:
  1. Electric parking brake switch (electric parking brake switch assembly) pulled to lock side with power switch off.
  2. Parking brake ECU (brake actuator assembly) power source relay shorted for approximately 60 seconds.
  • Wire harness or connector
  • Electric parking brake switch (electric parking brake switch assembly)
  • Parking brake ECU (brake actuator assembly)
DTC stored An electric parking brake system malfunction is displayed on the multi-information display.