ECU Power Source Circuit

THEFT DETERRENT / KEYLESS ENTRY: THEFT DETERRENT SYSTEM: ECU Power Source Circuit
- ECU Power Source Circuit

DESCRIPTION

This circuit provides power for main body ECU RH (cowl side junction block RH) operation.

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 relay block and junction block No. 1.

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

Standard Resistance:





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

2. CHECK COWL SIDE JUNCTION BLOCK RH (POWER SOURCE)

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

(b) Disconnect the RK cowl side junction block RH connector.





(c) Measure the voltage according to the value(s) in the table below.

Standard Voltage:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (COWL SIDE JUNCTION BLOCK RH - BODY GROUND)

(a) Disconnect the RD and RA cowl side junction block RH connectors.





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

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE Theft Deterrent System