METER / GAUGE SYSTEM Entire Combination Meter does not Operate

DESCRIPTION

This circuit is the power source circuit for the combination meter assembly. This circuit provides two types of power sources; one is a constant power source, and the other is an IG power source.

WIRING DIAGRAM

B003V6HE02

CAUTION / NOTICE / HINT

Note

Inspect the fuses of circuits related to this system before performing the following procedure.

PROCEDURE


  1. CONFIRM VEHICLE TYPE


    1. Choose the model to be inspected.

      Result
      Result Proceed to
      w/ Stop and Start System A
      w/o Stop and Start System B

    B

    GO TO STEP 3 Click here

    A

  2. CHECK STOP AND START SYSTEM


    1. Check the backup boost converter circuit.

      Click here

      OK
      The operation of the combination meter assembly returns to normal.
      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

  3. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - BODY GROUND)


    1. Disconnect the K3 combination meter assembly connector.

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      K3-31 (ES) - Body ground Always Below 1 Ω
      K3-40 (EP) - Body ground Always Below 1 Ω

    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      K3-21 (IG+) - Body ground* Engine switch off Below 1 V
      Engine switch on (IG) 11 to 14 V
      K3-22 (B) - Body ground Always 11 to 14 V

      • *: w/o Stop and Start System

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR