"TECHLINE SUMMARY ARTICLE - EDITORÂ’S NOTE: THIS ARTICLE REPLACES THE ONE POSTED IN SEPTEMBER 2015 TO EXTEND THAT ARTICLEÂ’S SHELF LIFE. THE ISSUES COVERED ARE STILL BEING ADDRESSED.
ARE YOU READING A DTC B121E (CLIMATE CONTROL UNIT LOST COMMUNICATION WITH TOUCH CONTROL PANEL) ON THE HDS AND YOU
CANÂ’T FIND ANYTHING IN THE SERVICE INFORMATION TO HELP YOU TROUBLESHOOT IT? JUST USE THE TROUBLESHOOTING PROCEDURE FOR
DTC U0180 (LOST COMMUNICATION WITH AUTO L/T); ITÂ’S THE ONE YOU WANT."