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Home >> Toyota >> 2003 >> Highlander Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 768 (Brakes - Abs With EBD & BA & TRAC & VSC (Diagnostics)) >> DTC C0226/21, C0236/22, C0246/23, C0256/24, C1225/25, C1226/26, C1227/27, C1228/28: Open Or Short Circuit In Hydraulic Brake Booster Solenoid Circuit (SFR/SFL/SRR/SRL Circuit) & Open Or Short In Hydraulic Brake Booster Solenoid Circuit (SMC/SPC(SA1/SA2/SA3) Circuit) >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2005 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.

The solenoid goes on when signals are received from the ECU and controls the pressure acting on the wheel cylinders, thus controlling braking force.

Fig 1: Identifying Hydraulic Brake Booster Solenoid Circuit Description
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