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Home >> Toyota >> 2021 >> 4Runner TRD Pro >> Repair and Diagnosis >> Brakes >> Anti-Lock Brakes >> Vehicle Stability Control System (For Hydraulic Brake Booster) - Diagnostic Codes (C1422-U0073) & Symptom Tests >> VEHICLE STABILITY CONTROL SYSTEM (for Hydraulic Brake Booster) >> Multi-terrain Select Indicator Light does not Come ON [08/2015 - 08/2019] >> Procedure

Multi-terrain Select Indicator Light does not Come ON [08/2015 - 08/2019]: Procedure

  1. CHECK CAN COMMUNICATION LINE 
    1. Turn the ignition switch off.
    2. Connect the Techstream to the DLC3.
    3. Turn the ignition switch to ON.
    4. Turn the Techstream on.
    5. Select CAN Bus Check from the System Selection Menu screen and follow the prompts on the screen to inspect the CAN bus (Refer to DIAGNOSIS SYSTEM [08/2015 - 08/2019] ).

      OK

      CAN Bus Check indicates no malfunctions in CAN communication.

    Result: 

    NG 

    GO TO CAN COMMUNICATION SYSTEM (HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS) 

    (Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - 08/2019] )

    Result: 

    OK 

    See step  2

  2. CHECK FOR DTC 
    1. Check for DTCs (Refer to DTC CHECK / CLEAR [08/2015 - 08/2019] ).
      RESULT

      Result Proceed to
      DTC is not output A
      DTC is output B

    Result: 

    B 

    REPAIR CIRCUITS INDICATED BY OUTPUT DTCS 

    (Refer to DIAGNOSTIC TROUBLE CODE CHART [08/2015 - 08/2019] )

    Result: 

    A 

    See step  3

  3. READ VALUE USING TECHSTREAM (OFF-ROAD GUIDANCE SWITCH (MULTI-TERRAIN SELECT SWITCH)) 
    1. Turn the ignition switch off.
    2. Connect the Techstream to the DLC3.
    3. Turn the ignition switch to ON.
    4. Turn the Techstream on.
    5. Enter the following menus: Body Electrical / D-SEAT SW / Data List.
      D-SEAT SW

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Off-road Guidance Switch Multi-terrain select switch/ ON or OFF ON: Multi-terrain select switch on
      OFF: Multi-terrain select off
      -

      OK

      The Techstream displays ON or OFF according to multi-terrain select switch operation.

    Result: 

    OK 

    GO TO METER / GAUGE SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) 

    (Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - ] )

    Result: 

    NG 

    See step  4

  4. CHECK TERMINAL VOLTAGE AND RESISTANCE (IG, +B, GND) 

    Refer to PROCEDURE - Step 10

    Result: 

    OK 

    REPLACE DRIVE MONITOR SWITCH 

    (Refer to REMOVAL [08/2015 - ] )

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR