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Home >> Toyota >> 2008 >> Land Cruiser >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter >> Meter / Gauge System >> Speedometer Malfunction >> Inspection Procedure

Inspection Procedure

  1. CHECK CAN COMMUNICATION 
    1. Check for DTCs (See DATA LIST / ACTIVE TEST  ).

      Result 

      RESULT CHART

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

    B: Go to CAN COMMUNICATION SYSTEM  (See CAN COMMUNICATION SYSTEM )

    A: Go to next step. 

  2. CHECK SFI SYSTEM (VEHICLE SPEED) 
    1. Check for DTCs (See DATA LIST / ACTIVE TEST  ).

    NG: Go to DIAGNOSTIC TROUBLE CODE CHART  (See DIAGNOSTIC TROUBLE CODE CHART )

    OK: Go to next step. 

  3. PERFORM ACTIVE TEST USING TECHSTREAM (SPEEDOMETER) 
    1. Operate the Techstream according to the display and select Active Test (See DATA LIST / ACTIVE TEST  ).

      Combination Meter 

      DIAGNOSTIC NOTE CHART

      Tester Display Test Part Control Range Diagnostic Note
      Speed Meter Operation Speedometer 0,40,80,120, 160, 200, 240 or 280 Perform the test with the vehicle stopped and engine idling.

      HINT:

      • Make sure that the vehicle is stopped and the engine is idling. The doors will be locked automatically when performing the speedometer Active Test. This is a normal function.
      • The displayed value has the same units (km/h, mph) as the main scale of the vehicle speedometer.
      • The needle position should be within the acceptable tolerance.

        OK: Needle indication is normal. 

    NG: REPLACE COMBINATION METER ASSEMBLY  (See REMOVAL  )

    OK: Go to next step. 

  4. READ VALUE USING TECHSTREAM (VEHICLE SPEED) 
    1. Operate the Techstream according to the display and select Data List (See DATA LIST / ACTIVE TEST  ).

      Combination Meter 

      DIAGNOSTIC NOTE CHART

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Vehicle Speed meter Vehicle speed/Min.: 0 (0), Max.: 255 (158) Almost same as actual speed (when driving) Unit: km/h (mph)

      OK: Vehicle speed displayed on the Techstream is almost the same as actual vehicle speed measured using speedometer tester (calibrated chassis dynamometer). 

    NG: Go to step 5 

    OK: REPLACE COMBINATION METER ASSEMBLY  (See REMOVAL  )

  5. READ VALUE USING TECHSTREAM (WHEEL SPEED SENSOR) 
    1. Operate the Techstream according to the display and select Data List (See DATA LIST / ACTIVE TEST  ).

      ABS/VSC/TRAC 

      DIAGNOSTIC NOTE CHART

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      FR Wheel Speed Wheel speed sensor FR reading/ Min.: 0 (0), Max.: 326 (202) Actual wheel speed A similar speed is indicated on the speedometer.
      FL Wheel Speed Wheel speed sensor FL reading/ Min.: 0 (0), Max.: 326 (202) Actual wheel speed A similar speed is indicated on the speedometer.
      RR Wheel Speed Wheel speed sensor RR reading/ Min.: 0 (0), Max.: 326 (202) Actual wheel speed A similar speed is indicated on the speedometer.
      RL Wheel Speed Wheel speed sensor RL reading/ Min.: 0 (0), Max.: 326 (202) Actual wheel speed A similar speed is indicated on the speedometer.

      OK: Vehicle speed displayed on the Techstream is almost the same as actual vehicle speed measured using speedometer tester (calibrated chassis dynamometer). 

    NG: REPLACE HYDRAULIC BRAKE BOOSTER ASSEMBLY  (See REMOVAL )

    OK: REPLACE COMBINATION METER ASSEMBLY  (See REMOVAL  )