ECU Power Source Circuit

THEFT DETERRENT: THEFT DETERRENT SYSTEM: ECU Power Source Circuit

ECU Power Source Circuit

DESCRIPTION

This circuit provides power for main body ECU 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 R/B and J/B No. 1.
Measure the resistance.
Standard resistance:
Below 1 Ohms
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 R/B and J/B No. 1.





(b) Disconnect the RK J/B 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 J/B RH - BODY GROUND)





(a) Disconnect the RD and RA J/B 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