DTC B1003: ECU Malfunction [10/2015 - ]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Central Gateway / Trouble Codes.

   	Proceed to
   DTC B1003 is not output from the central gateway ECU (Techstream display: Central Gateway)	A
   DTC B1003 is output from the central gateway ECU (Techstream display: Central Gateway)	B

Result: 

A 

USE SIMULATION METHOD TO CHECK. Refer to  ELECTRONIC CIRCUIT INSPECTION PROCEDURE [10/2014 - ] 

Result: 

B 

REPLACE CENTRAL GATEWAY ECU. Refer to  REMOVAL [10/2015 - ]