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 Power Back Door System