DSD Information System
Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 65 (Electronically Controlled Brake System (HV) - Diagnostic Codes (10 Of 11)) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model) >> DTC C1505-7E: Brake Pressure Control solenoid "E" Actuator Stuck On; DTC C150B-7E: Brake Pressure Control solenoid "F" Actuator Stuck On [11/2023 - ] >> Description

DTC C1505-7E: Brake Pressure Control solenoid "E" Actuator Stuck On; DTC C150B-7E: Brake Pressure Control solenoid "F" Actuator Stuck On [11/2023 - ]: Description

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

The No. 1 skid control ECU (brake booster with master cylinder assembly) controls braking force according to the hybrid control system regenerative braking force and provides the hydraulic pressure necessary for operating the master cylinder and each wheel cylinder according to the servo pressure sensor.

HINT: 

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Note
C1505-7E Brake Pressure Control solenoid "E" Actuator Stuck On When all of the following conditions are met, there is an SSA valve malfunction (stuck closed, etc.).
  • The vehicle was driven before the ignition switch was turned off.
  • 90 seconds have elapsed since the ignition switch was turned off.
  • The vehicle is stopped and the shift position is P.
Brake booster with master cylinder assembly Does not come on Output ECU: No. 1 skid control ECU (brake booster with master cylinder assembly)
C150B-7E Brake Pressure Control solenoid "F" Actuator Stuck On When all of the following conditions are met, there is a SGH valve malfunction (stuck closed, etc.).
  • The vehicle was driven before the ignition switch was turned off.
  • 90 seconds have elapsed since the ignition switch was turned off.
  • The vehicle is stopped and the shift position is P.
Brake booster with master cylinder assembly Comes on
  • SAE Code: C150C
  • Output ECU: Both skid control ECUs