VEHICLE PROXIMITY NOTIFICATION SYSTEM Vehicle Approaching Speaker Switch Indicator does not Illuminate or Turn OFF

DESCRIPTION

When the pattern select switch assembly (vehicle approaching speaker switch) is pushed when the vehicle approaching speaker system is on, the hybrid vehicle control ECU receives a signal to temporarily suspend output of the warning sound from the vehicle approaching speaker assembly and illuminate the indicator light of the pattern select switch assembly (vehicle approaching speaker switch).

WIRING DIAGRAM

A003MT8E01

CAUTION / NOTICE / HINT

Note


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

  • Before replacing the hybrid vehicle control ECU, refer to Service Bulletin.

PROCEDURE


  1. INSPECT PATTERN SELECT SWITCH ASSEMBLY (VEHICLE APPROACHING SPEAKER SWITCH)


    1. Remove the pattern select switch assembly (vehicle approaching speaker switch).

      Click here

    2. Inspect the pattern select switch assembly (vehicle approaching speaker switch).

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE PATTERN SELECT SWITCH ASSEMBLY Click here

    OK

  2. CHECK HARNESS AND CONNECTOR (PATTERN SELECT SWITCH ASSEMBLY (VEHICLE APPROACHING SPEAKER SWITCH) - HYBRID VEHICLE CONTROL ECU)


    1. Disconnect the I3 hybrid vehicle control ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I47-11 (IND) - I3-9 (KIND) Always Below 1 Ω
      I47-11 (IND) or I3-9 (KIND) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE HYBRID VEHICLE CONTROL ECU Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR