Outside Air Temperature Indicator Calibration: Troubleshooting
If the indicator displays "---" for more than 2 seconds after selecting the outside air temperature display mode, check for and resolve all B-CAN related DTCs, then check the HVAC system or multiplex integrated control system for DTCs.
(see B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ))