THEFT DETERRENT SYSTEM > ECU Power Source Circuit


DESCRIPTION

  1. This circuit provides power to operate the cowl side junction block (multiplex network body ECU).

WIRING DIAGRAM


B108135E02


INSPECTION PROCEDURE

1.INSPECT FUSE (D/C CUT, MPX-B)

  1. Remove the D/C CUT and MPX-B fuses from the engine room No. 1 junction block.

  1. Measure the resistance of the fuses.

    Standard resistance:
    Below 1 Ω



NG
REPLACE FUSE
OK


2.CHECK WIRE HARNESS (COWL SIDE JUNCTION BLOCK RH - BATTERY AND BODY GROUND)
B108828E02

  1. Disconnect the DD and DK junction block connectors.

  1. Measure the voltage and resistance of the wire harness side connectors.

    Standard voltage:
    Tester Connection
    		Specified Condition
    DK-5 (BECU) - Body ground
    		10 to 14 V

    Standard resistance:
    Tester Connection
    		Specified Condition
    DD-7 (GND2) - Body ground
    		Below 1 Ω



NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE COWL SIDE JUNCTION BLOCK RH (MULTIPLEX NETWORK BODY ECU)