METER / GAUGE SYSTEM Speedometer Malfunction

DESCRIPTION

The combination meter receives vehicle speed signals from the skid control ECU via the CAN line. The vehicle speed sensor detects the voltage that varies according to the vehicle speed. The skid control ECU supplies power to the vehicle speed sensor. The skid control ECU detects vehicle speed signals based on the pulses of the voltage.

INSPECTION PROCEDURE

PROCEDURE

1. Click here

   CHECK CAN COMMUNICATION SYSTEM

   
   

   1. Check for DTCs (Click here).

      Table 1. Result

      Result	Proceed to
      CAN communication DTC is not output	A
      CAN communication system (for LHD) DTC is output	B
      CAN communication system (for RHD) DTC is output	C

   
   
   • AClick here
   • BClick here
   • CClick here
2. Click here

   CHECK ANTI-LOCK BRAKE SYSTEM (VEHICLE SPEED)

   
   

   1. Check for DTCs (Click here).

   
   
   • OKClick here
   • NGClick here
3. Click here

   PERFORM ACTIVE TEST USING INTELLIGENT TESTER (SPEEDOMETER)

   
   

   1. Operate the intelligent tester according to the display and select Active Test (Click here).

      Table 2. Combination Meter

      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.

      Tip:
      

      • 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.

      Table 3. Result

      Result	Proceed to
      OK	A
      NG (w/ Multi-information Display)	B
      NG (w/o Multi-information Display)	C

   
   
   • AClick here
   • BClick here
   • CClick here
4. Click here

   READ VALUE USING INTELLIGENT TESTER (VEHICLE SPEED)

   
   

   1. Operate the intelligent tester according to the display and select Data List (Click here).

      Table 4. Combination Meter

      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 intelligent tester is almost the same as actual vehicle speed measured using speedometer tester (calibrated chassis dynamometer).

      Table 5. Result

      Result	Proceed to
      NG	A
      OK (w/ Multi-information Display)	B
      OK (w/o Multi-information Display)	C

   
   
   • AClick here
   • BClick here
   • CClick here
5. Click here

   READ VALUE USING INTELLIGENT TESTER (WHEEL SPEED SENSOR)

   
   

   1. Operate the intelligent tester according to the display and select Data List (Click here).

      Table 6. ABS/VSC/TRAC

      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 intelligent tester is almost the same as actual vehicle speed measured using speedometer tester (calibrated chassis dynamometer).

      Table 7. Result

      Result	Proceed to
      NG (for LHD)	A
      NG (for RHD)	B
      OK (w/ Multi-information Display)	C
      OK (w/o Multi-information Display)	D

   
   
   • AClick here
   • BClick here
   • CClick here
   • DClick here
6. Click here

   REPLACE HYDRAULIC BRAKE BOOSTER ASSEMBLYClick here

7. Click here

   Go to CAN COMMUNICATION SYSTEMClick here

8. Click here

   Go to CAN COMMUNICATION SYSTEMClick here

9. Click here

   Go to DIAGNOSTIC TROUBLE CODE CHARTClick here

10. Click here

    REPLACE COMBINATION METER ASSEMBLYClick here

11. Click here

    REPLACE COMBINATION METER ASSEMBLYClick here

12. Click here

    REPLACE COMBINATION METER ASSEMBLYClick here

13. Click here

    REPLACE COMBINATION METER ASSEMBLYClick here

14. Click here

    REPLACE HYDRAULIC BRAKE BOOSTER ASSEMBLYClick here

15. Click here

    REPLACE COMBINATION METER ASSEMBLYClick here

16. Click here

    REPLACE COMBINATION METER ASSEMBLYClick here