DESCRIPTION If the windshield frequently fogs up even though the air conditioning system is operating, the following factors may be the cause.
PROCEDURE
(a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Air Conditioner / Utility / Refrigerant Gas Volume Check. Body Electrical > Air Conditioner > Utility
(e) Check that the following conditions are met and perform the refrigerant shortage check according to the display on the Techstream. Measurement Condition:
*: If the ambient temperature is not within the range shown, do not perform this check.
OK: "Refrigerant correct" is displayed on the Techstream.
(a) Press the front defroster switch on the air conditioning control panel (radio and display receiver assembly). OK: The air outlet mode changes to DEF mode.
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Meter / Gauge System(for Gasoline Model): Engine Coolant Temperature Receiver Gauge Malfunction
DESCRIPTION In this circuit, the combination meter assembly receives engine coolant temperature signals from the ECM via CAN communication. The combination meter assembly displays an engine coolant temperature warning based on the data received from the ECM. WIRING DIAGRAM CAUTION / NOTICE / HINT NO ...