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ECU Power Source Circuit





THEFT DETERRENT: THEFT DETERRENT SYSTEM: ECU Power Source Circuit
- ECU Power Source Circuit

DESCRIPTION

* This circuit provides power to operate the main body ECU RH.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

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

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

(b) Measure the resistance of the fuses.

Standard resistance:

Below 1 Ohms

NG -- REPLACE FUSE
OK -- Continue to next step.

2. CHECK WIRE HARNESS (MAIN BODY ECU RH - BATTERY AND BODY GROUND)

(a) Disconnect the DD and DK ECU connectors.





(b) Measure the resistance of the wire harness side connector.

Standard resistance:





(c) Measure the voltage of the wire harness side connector.

Standard voltage:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE MAIN BODY ECU RH

3. REPLACE FUSE

4. REPLACE MAIN BODY ECU RH

5. REPAIR OR REPLACE HARNESS OR CONNECTOR