B2785

DTC B2785 Communication Malfunction between ECUs Connected by LIN

DESCRIPTION

DTC Detection Condition:

The certification ECU monitors the LIN communication bus between the components related to the certification intermittently. DTC B2785 is output when a malfunction in the LIN communication bus between the components related to the certification is detected continuously 3 times.

Wiring Diagram:

Step 1-3:

Step 3 (Continued)-4:

Step 4 (Continued)-5:

Step 5 (Continued)-9:

Step 9 (Continued):

INSPECTION PROCEDURE

NOTE: When using the intelligent tester (with CAN VIM) or Techstream with the engine switch off to troubleshoot:
Connect the intelligent tester (with CAN VIM) or Techstream to the vehicle, and turn a courtesy switch on and off at 1.5 second intervals until communication between the tester and vehicle begins.

HINT: When DTC B2785 and B2287 are output simultaneously, perform the troubleshooting for DTC B2785 first.