DIAGNOSIS SYSTEM DIAGNOSIS FUNCTION (a) The diagnosis function turns off the cruise control indicator, illuminates the master warning light and displays a warning message when a malfunction is detected. When a malfunction is detected in the dynamic radar cruise control system, DTCs are stored in the ECM or driving support ECU assembly.
NOTICE:
DESCRIPTION (a) The ECM and driving support ECU assembly control the dynamic radar cruise control system of the vehicle. The data and DTCs relating to the dynamic radar cruise control system can be read from the DLC3 of the vehicle. Use the Techstream to check and solve the problem. CHECK DLC3 (a) Check the DLC3. Click here CHECK INDICATOR (a) Turn the engine switch on (IG). (b) Check that the cruise control indicator illuminates when the dynamic radar cruise control system is turned on using the cruise control main switch, and that the indicator turns off when the dynamic radar cruise control system is turned off using the cruise control main switch.
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Can Communication System(for Hv Model): Check Bus 5 Line for Short to +B
DESCRIPTION There may be a short circuit between one of the CAN bus lines and +B when there is no resistance between terminal 15 (CA5H) of the central gateway ECU (network gateway ECU) and terminal 16 (BAT) of the DLC3, or terminal 16 (CA5L) of the central gateway ECU (network gateway ECU) and termi ...