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Home >> Lexus >> 2002 >> SC 430 >> Repair and Diagnosis (Single Page) >> Brakes >> Traction Control >> Abs With EBD & BA & TRAC & VSC System - Diagnosis >> DTC C0226/21: SFR SOLENOIDO Circuit, DTC C0236/22: SFL Solenoid Circuit, DTC C0246/23: SRR Solenoid Circuit, DTC C0256/24: SRL Solenoid Circuit, DTC C1225/25: SMC Solenoid Circuit(SA1), DTC C1226/26: SPC Solenoid Circuit(SA2), DTC C1227/27: SRC Solenoid Circuit(SA3), DTC C1228/28: STR Solenoid Circuit >> Inspection Procedure

Inspection Procedure

  1. INSPECT BRAKE MASTER CYLINDER SUB-ASSY 
    1. Disconnect the 2 connectors (B1 and B3) from the brake master cylinder.
    2. Check continuity between each of terminals B1 - 4 and B3 - 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12 of brake master cylinder connector.

      OK: 

      Continuity 

    NOTE: Resistance of each solenoid at 20 °C (68 °F)

    SFRH, SFLH, SRRH, SRLH, SRC: 4.75 - 5.25 Ω

    SFRR, SFLR, SRRR, SRLR: 2.00 - 2.40 Ω

    SMC, SPC, STR: 3.5 - 3.9 Ω

    Fig 1: Checking Continuity Between Brake Master Cylinder Connector Terminals
    G03386348Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPLACE BRAKE MASTER CYLINDER SUB-ASSY 
    2. OK: Go to next step. 
  2. CHECK HARNESS AND CONNECTOR(BRAKE MASTER CYLINDER - SKID CONTROL ECU) 
    1. Check for open and short circuit in harness and connector between each solenoid and skid control ECU.
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: CHECK EACH CONNECTION IF SAME CODE IS STILL OUTPUT AFTER DTC DELETION (IF BE DEFECTIVE.) 
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