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 > Tire Pressure Warning System(for Gasoline Model): Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Tire Pressure Warning ECU and Receiver DTC No. Detection Item Note Link B1247 Tire Pressure Monitor Receiver Communication Stop This DTC is for main body ECU (multiplex network body ECU) C2111 Transmitter ID1 Operation Stop - C2112 Transmitter ID2 Operation Stop - C2113 ...