E/M Button Does Not Toggle HVAC Temperature Display Between °F & °C. E/M Button Does Toggle Odometer Units Between English & Metric

Using scan tool, check instrument cluster for DTCs B0034 and B0037. See DTC DEFINITIONS table under SELF-DIAGNOSTIC SYSTEM. If DTC B0034 or B0037 exist, locate and repair problem in serial data line circuits. See WIRING DIAGRAMS  . Recheck system operation.