ECU Power Source Circuit

DOOR / HATCH: POWER BACK DOOR SYSTEM: ECU Power Source Circuit

ECU Power Source Circuit

DESCRIPTION

This circuit supplies power to operate the power back door unit.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT FUSE (ECU-B2, PBD, ECU-IG4)
(a) Remove the ECU-B2 and PBD fuses from the engine room relay block.
(b) Remove the ECU-IG4 fuse from the cowl side junction block RH.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:






NG -- REPLACE FUSE
OK -- Continue to next step.
2. CHECK HARNESS AND CONNECTOR (UNIT - BATTERY AND BODY GROUND)





(a) Disconnect the L36 unit connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:





(c) 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