DYNAMIC RADAR CRUISE CONTROL SYSTEM ECU Power Source Circuit

DESCRIPTION

This circuit provides power to operate the driving support ECU assembly.

WIRING DIAGRAM

A01MJNME58
*1 from IG1 NO. 3 Relay
*2 ECU-IG1 NO. 1
*3 Driving Support ECU Assembly

CAUTION / NOTICE / HINT

Note

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

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (DRIVING SUPPORT ECU ASSEMBLY - AUXILIARY BATTERY AND BODY GROUND)


    1. A01MIR5C75
      *a

      Rear view of wire harness connector

      (to Driving Support ECU Assembly)

      Disconnect the driving support ECU assembly connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      G72-30 (B) - Body ground Power switch on (IG) 11 to 14 V
      G72-30 (B) - Body ground Power switch off Below 1 V
      Standard Resistance
      Tester Connection Condition Specified Condition
      G72-25 (GND) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR