METER / GAUGE SYSTEM > Hybrid System Indicator Malfunction

for Preparation Click here


DESCRIPTION

A hybrid system indicator is adopted for this vehicle. In this circuit, the meter ECU receives the hybrid system indicator level signal from the power management control ECU via the CAN communication line. The meter ECU controls the operation of the hybrid system indicator according to the hybrid system indicator level signal received from the power management control ECU via the CAN communication line.

WIRING DIAGRAM


E143765E64


INSPECTION PROCEDURE

1.CHECK CAN COMMUNICATION SYSTEM

  1. Check if a CAN communication DTC is output (Click here).

    Result:

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



B
GO TO CAN COMMUNICATION SYSTEM (Click here)
A


2.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (HV SYSTEM INDICATOR)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the power switch on (IG).

  1. Turn the tester on.

  1. Enter the following menus: Body / Combination Meter / Active Test.

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

    Combination Meter 
    Tester Display
    		 Test Part
    		Control Range
    		Diagnostic Note
    HV System Indicator
    		HV System Indicator
    		MIN, -50, 0, 100, 200, 300, 400, MAX
    		-

    OK:
    Hybrid system indicator indication is normal.



NG
REPLACE COMBINATION METER ASSEMBLY (Click here)
OK


3.READ VALUE USING INTELLIGENT TESTER (HYBRID SYSTEM INDICATOR)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the power switch on (IG).

  1. Turn the tester on.

  1. Enter the following menus: Body / Combination Meter / Data List.

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

    Combination Meter 
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    HV System Indicator
    		Hybrid system indicator value/ Min.: -512, Max.: 512
    		-512 to 512
    		-

    OK:
    Hybrid system indicator value displayed on the intelligent tester is almost the same as hybrid system indicator indication.



NG
GO TO HYBRID VEHICLE CONTROL SYSTEM (Click here)
OK


4.REPLACE COMBINATION METER ASSEMBLY

  1. Replace the combination meter assembly with a new or a known good one (Click here).

    OK:
    The operation of the hybrid system indicator returns to normal.



NG
REPLACE POWER MANAGEMENT CONTROL ECU (Click here)
OK

END