Driver Side Switch Module LIN Communication Malfunction
Driver Side Switch Module LIN Communication MalfunctionDESCRIPTION
The outer mirror switch monitors the LIN communication bus between the components related to the switches on the driver side seat.
HINT: DTC U1127, U1128 and U1129 are output simultaneously when: 1. there is an open or short in the LIN communication bus between the switches on the driver side seat, and 2. their LIN communication bus stops.
Wiring Diagram:
Step 1-2:
Step 3-4:
Step 4 (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.