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Home >> Toyota >> 2020 >> Avalon Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 114 (Electronically Controlled Brake System - Diagnostic Codes (C1415-U0073) & Symptom Tests (Hybrid)) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model) >> DTC C146C: Open Circuit in ABS Motor Relay Circuit; DTC C146D: Short Circuit in ABS Motor Relay Circuit [04/2018 - ] >> Caution / Notice / Hint

Caution / Notice / Hint

WARNING: This page is about a different variant/trim than selected.
NOTE:
  • After replacing the skid control ECU (brake booster with master cylinder assembly), perform linear solenoid valve offset learning, ABS holding solenoid valve learning, yaw rate and acceleration sensor zero point calibration and system information memorization after performing "Reset Memory".

    Refer to INITIALIZATION [04/2018 - 08/2021] , or refer to INITIALIZATION [08/2021 - ]

  • Inspect the fuses for circuits related to this system before performing the following procedure.

HINT: 

When DTCs C1241 and/or C1417 are output together with C146C and/or C146D, inspect and repair the trouble areas indicated by C1241 and/or C1417 first.

for C1241: Refer to DTC C1241: Low or High Power Supply Voltage [04/2018 - 08/2020] , or refer to DTC C1241: Low or High Power Supply Voltage [08/2020 - ]

for C1417: Refer to DTC C1417: IG1 Voltage Supply too High; DTC C14DF: Brake Pressure Control Solenoid Supply Voltage Circuit High [04/2018 - ]