CAUTION / NOTICE / HINT NOTICE: When replacing the radio and display receiver assembly, always replace it with a new one. If a radio and display receiver assembly which was installed to another vehicle is used, the following may occur:
HINT: Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Navigation System. Click here PROCEDURE
(a) w/ Manual (SOS) Switch: Check that the current position of the vehicle is within the HD weather and traffic or DCM communication function coverage area. w/o Manual (SOS) Switch: Check that the current position of the vehicle is within the HD weather and traffic coverage area. OK: Vehicle is within coverage area.
(a) Check for symptoms (poor sound quality, sounds cannot be heard, etc.) during conventional FM radio broadcasting.
(a) Check for symptoms (Unable to connect to call center, etc.) with an ordinary safety connect.
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Headup Display System(for Hv Model): Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Headup Display System DTC No. Detection Item Memory Note Link B132187 Lost Communication with EMV Missing Message DTC stored - U010087 Lost Communication With ECM/PCM "A" Missing Message DTC stored - U012987 Lost Communication With Brake System Control Module Missing Me ...