Meter / Gauge System Speedometer Malfunction

Body Electrical. Camry. Acv40 Gsv40
Meter. Camry. Acv40 Gsv40

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK CAN COMMUNICATION SYSTEM

PERFORM ACTIVE TEST USING INTELLIGENT TESTER

READ VALUE USING INTELLIGENT TESTER

READ VALUE USING INTELLIGENT TESTER

REPLACE SKID CONTROL ECU

METER / GAUGE SYSTEM - Speedometer Malfunction


DESCRIPTION

The meter CPU receives vehicle speed signals from the skid control ECU via the CAN communication lines (CAN No. 1 Bus). 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.

WIRING DIAGRAM


Camry. Acv40 Gsv40.Meter.Meter / Gauge System.Meter / Gauge System Speedometer Malfunction


INSPECTION PROCEDURE

1.CHECK CAN COMMUNICATION SYSTEM

  1. Check if CAN communication DTC is output (CAMRY_ACV40 RM000000WIB03ZX.htmlfor LHD, CAMRY_ACV40 RM000000WIB040X.html for RHD).

    Result:

    Result
    		Proceed to
    CAN communication DTC is not output.
    		A
    CAN communication DTC is output.
    		B (CAMRY_ACV40 RM000000WI603XX.htmlfor LHD, CAMRY_ACV40 RM000000WI603YX.html for RHD)


B
GO TO CAN COMMUNICATION SYSTEM
A


2.PERFORM ACTIVE TEST USING INTELLIGENT TESTER

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to the ON position.

  1. Turn the tester ON.

  1. Enter the following menus: Diagnosis / OBD/MOBD / Combination Meter / Active Test.

  1. Check the operation by referring to the values in the table below.

    Combination Meter:
    Tester Display
    		Test Part
    		Control Range
    		Normal Condition
    Speed Meter Operation
    		Speedometer
    		0, 40, (24), 80 (48), 120 (72), 160 (96), 200 (120) km/h (mph)
    		-
    OK:
    Needle indication is normal.


NG
REPLACE COMBINATION METER ASSEMBLY
OK


3.READ VALUE USING INTELLIGENT TESTER

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to the ON position.

  1. Turn the tester ON.

  1. Enter the following menus: Diagnosis / OBD/MOBD / Combination Meter / Data List.

  1. Check the values by referring to the values in the table below.

    Combination Meter:
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Vehicle Speed Meter
    		Vehicle speed/Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph)
    		Almost same as actual speed (When driving)
    		If data received from the skid control ECU exceeds the range that can be displayed on the meter, the meter continues to display the maximum value of the range.
OK:
Vehicle speed displayed on the tester is almost the same as the actual vehicle speed measured using a speedometer tester (calibrated chassis dynamometer).


NG
Go to step 4
OK

REPLACE COMBINATION METER ASSEMBLY

4.READ VALUE USING INTELLIGENT TESTER

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to the ON position.

  1. Turn the tester ON.

  1. Enter the following menus: Diagnosis / OBD/MOBD / ABS/TRAC/VSC / Data List.

  1. Check the values by referring to the table below.

    ABS/TRAC/VSC:
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    FR/FL/RR/RL Wheel Speed
    		Vehicle speed/Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)
    		Almost same as actual speed (When driving)
    		-
    OK:
    Vehicle speed displayed on the tester is almost the same as the actual vehicle speed.


NG
GO TO BRAKE CONTROL SYSTEM
OK


5.REPLACE SKID CONTROL ECU

  1. Replace the skid control ECU with a new or a normal one.

OK:
The operation of the speedometer returns to normal.


NG
REPLACE COMBINATION METER ASSEMBLY
OK

END