Multiplex Communication System
DTC U1127 Lost Communication with Center Console Switch ECUDESCRIPTION
DTC Detection Condition:
This DTC is output when LIN communication between the outer mirror switch and NO.1 console switch stops for 10 seconds or more.
Wiring Diagram:
Step 1-2:
Step 3:
Step 4-6:
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 U1127, U1128 and U1129 are output simultaneously, perform troubleshooting for "Driver Side Switch Module LIN Communication Malfunction" first.