LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2006 >> RX 330 AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 8 (Brakes - Abs With EBD & BD & TRAC & VSC (Diagnostics)) >> Auto LSD Indicator Light Circuit (Does Not Come On) >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2006 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: When replacing the master cylinder solenoid, perform zero point calibration (see CALIBRATION  ).
  1. INSPECT AUTO LSD INDICATOR LIGHT 
    1. Disconnect the skid control ECU connector.
    2. Ground terminal INFR of the skid control ECU.
    3. Turn the ignition switch to the ON position.
    4. Check that the AUTO LSD indicator light comes on.

      OK: AUTO LSD indicator light comes on. 

    NG: Go to step   2 

    OK: REPLACE MASTER CYLINDER SOLENOID (See  OVERHAUL  ) 

  2. CHECK HARNESS AND CONNECTOR (BETWEEN SKID CONTROL ECU AND COMBINATION METER) (See  HOW TO PROCEED WITH TROUBLESHOOTING  ) 
    1. Disconnect the combination meter connector.
    2. Measure the resistance according to the value(s) in TERMINALS RESISTANCE SPECIFICATION TABLE .

      Standard: 

      TERMINALS RESISTANCE SPECIFICATION TABLE

      Tester Connection Specified Condition
      S28-15 (INFR) - C10-17 Below 1
      S28-15 (INFR) - Body ground 10 k or higher
      Fig 1: Identifying Skid Control ECU Connector & Combination Meter Connector
      G04336052Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  3. INSPECT COMBINATION METER ASSY 
    1. Check the combination meter system (See HOW TO PROCEED WITH TROUBLESHOOTING ).

    NG: REPLACE COMBINATION METER ASSY (SEE  COMBINATION METER ASSY  ) 

    OK: Go to next step 

  4. INSPECT SKID CONTROL ECU (CSW TERMINAL) 
    1. Disconnect the skid control ECU connector.
    2. Measure the resistance according to the value(s) in TERMINALS RESISTANCE SPECIFICATION TABLE .

      Standard: 

      TERMINALS RESISTANCE SPECIFICATION TABLE

      Tester Connection Condition Specified Condition
      S28-43 (CSW) - Body ground AUTO LSD switch is pushed in Below 1
      Fig 2: Identifying Skid Control ECU Connector Terminals
      G04336053Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: Go to step   5 

    OK: REPLACE MASTER CYLINDER SOLENOID (See  OVERHAUL  ) 

  5. INSPECT AUTO LSD SWITCH 
    1. Disconnect the AUTO LSD switch connector.
    2. Measure the resistance according to the value(s) in TERMINALS RESISTANCE SPECIFICATION TABLE .

      Standard: 

      TERMINALS RESISTANCE SPECIFICATION TABLE

      Tester Connection Condition Specified Condition
      A42-3 - A42-4 Switch is pushed in Below 1
      A42-3 - A42-4 Switch is not pushed in 10 k or higher
      Fig 3: Inspecting AUTO LSD Switch
      G04336054Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE AUTO LSD SWITCH 

    OK: Go to next step 

  6. CHECK HARNESS AND CONNECTOR (BETWEEN SKID CONTROL ECU, BODY GROUND AND AUTO LSD SWITCH) (See  HOW TO PROCEED WITH TROUBLESHOOTING  ) 
    1. Measure the resistance according to the value(s) in TERMINALS RESISTANCE SPECIFICATION TABLE .

      Standard: 

      TERMINALS RESISTANCE SPECIFICATION TABLE

      Tester Connection Specified Condition
      S28-43 (CSW) - A42-3 Below 1
      S28-43 (CSW) - Body ground 10 k or higher
      A42-4 - Body ground Below 1
      Fig 4: Identifying Skid Control ECU Connector & AUTO LSD Switch Connectors
      G04336055Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: END 

scientia non olet · About LEMON Manuals