DESCRIPTION This DTC is stored when items controlled by the air conditioning amplifier assembly cannot be customized via the audio and visual system vehicle customization screen. HINT: The air conditioning amplifier assembly controls the air conditioning system related items that are customizable via the audio and visual system vehicle customization screen.
CAUTION / NOTICE / HINT NOTICE:
PROCEDURE
(a) Use the Techstream to check if the CAN communication system is functioning normally. Click here OK: CAN communication DTCs are not output.
(a) Check if the air conditioning system is malfunctioning. Click here HINT: Customization may not be possible depending on the malfunction in the air conditioning system. OK: No malfunctions are present in the air conditioning system.
(a) Make a note of the customizable items for the air conditioning system. HINT: The items shown as customizable via the audio and visual system vehicle customization screen can also be changed using the Techstream. In the following step, the Techstream will be used. (1) To match-up the items on the audio and visual system vehicle customization screen with the items on the Techstream, check the customize parameters list for the air conditioning system related items that can be customized via the audio and visual system vehicle customization screen. Click here (b) Using the Techstream, check that it is possible to change the settings of the customize parameters that are available for customization via the audio and visual system vehicle customization screen. OK: The items available for customization via the audio and visual system vehicle customization screen can be customized successfully using the Techstream.
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Can Communication System(for Gasoline Model): Open in Bus 2 Main Bus Line
DESCRIPTION There may be an open circuit in one of the CAN main bus lines when the resistance between terminals 18 (CA4H) and 17 (CA4L) of the central gateway ECU (network gateway ECU) is 70 Ω or higher. Symptom Trouble Area Resistance between terminals 18 (CA4H) and 17 (CA4L) of the central gatewa ...