COMBUSTION TYPE POWER HEATER SYSTEM ECU Power Source Circuit

DESCRIPTION

This is power source circuit for the heater assembly.

WIRING DIAGRAM

B001EFAE06

CAUTION / NOTICE / HINT

Note

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

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (HEATER ASSEMBLY - BATTERY AND BODY GROUND)


    1. B001EXFE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Heater Assembly)

      Disconnect the heater assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A97-1 (E) - 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
      A97-5 (B) - Body ground Always 11 to 14 V

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR