Certification ECU Power Source Circuit

DOOR LOCK: SMART KEY SYSTEM: Certification ECU Power Source Circuit
- Certification ECU Power Source Circuit

DESCRIPTION

This is the power source circuit of the certification ECU.

The certification ECU controls the following:

* Electrical key verification confirmation

* Cabin and door oscillator control

* Entry door LOCK/UNLOCK request to the main body ECU

* Steering LOCK/UNLOCK request

* Immobiliser SET/UNSET request to the ID code box

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)

(a) Disconnect the E58 certification ECU connector.

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

Standard voltage:

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

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