Inspection Procedure

WARNING: This page is about a different car, the 2002 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.

Inspect Brake Actuator Assy.
1. Disconnect the brake actuator connector.
2. Check continuity between terminal BS(16) and terminals SFRH(7), SFLH(14), SRRH(20), SRLH(6), SFRR(5), SFLR(19), SRRR(18) and SRLR(12) of brake actuator.
  
  Fig 1: Inspecting Brake Actuator Assembly
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. OK: Continuity
  NOTE:
  Resistance of each solenoid
  
  SFRH, SFLH, SRRH, SRLH: 8.3-9.3 ohms
  
  SFRR, SFLR, SRRR, SRLR: 4.0-4.6 ohms
3. Check continuity between terminals SM1 + (13) - SM1-(21), and terminals SM2+(22) - SM2-(23) of brake actuator.
  1. OK: Continuity
  Resistance of each solenoid: 8.3-9.3 Ω
4. Check continuity between terminal BS(16) and terminals SRM1(3) and SRM2(10) of brake actuator.
  1. OK: Continuity
  NOTE:
  Resistance of each solenoid
  
  SRM1, SRM2: 6.2-6.8 ohms
1. NG: Replace Brake Actuator Assy.
2. OK: Go To Next Step .
Check Wire Harness And Connector (Brake Actuator - Skid Control ECU). See HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS .
1. NG: Repair Or Replace Harness Or Connector
2. OK: Go to next step .
Check Skid Control ECU Terminal Voltage (SR Terminal)
1. Remove the skid control ECU with connectors still connected.
2. Turn the ignition switch ON, measure between terminal SR and GND.
  1. OK: Voltage: 1 V or less
1. OK: Check And Repair Harness And ABS Solenoid Relay
2. NG: Go To Next Step .
Check DTC Once More. See PRE-CHECK

Fig 2: Reviewing DTC Malfunction Code Information
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. A : Go To Next Step .
2. B : No Problem
Check Contact Condition (Each Connection)
1. OK: Check And Replace Skid Control ECU Assy.
2. NG: Check And Repair Harness And Connector