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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 C13A9: Brake System Malfunction [04/2018 - 08/2019] >> Description

DTC C13A9: Brake System Malfunction [04/2018 - 08/2019]: Description

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The parking brake ECU (brake actuator assembly) receives the wheel speed signal of each wheel from the skid control ECU (brake booster with master cylinder assembly) via CAN communication.

This DTC is stored when a malfunction occurs in the skid control ECU (brake booster with master cylinder assembly).

DTC No. Detection Item DTC Detection Condition Trouble Area Memory Note
C13A9 Brake System Malfunction Both of following conditions are met:
  1. Power switch on (IG)
  2. Malfunction signal is received from skid control ECU (brake booster with master cylinder assembly) for approximately 0.3 seconds.
  • Skid control ECU (brake booster with master cylinder assembly)
  • Parking brake ECU (brake actuator assembly)
DTC stored An electric parking brake system malfunction is displayed on the multi-information display.