CAUTION / NOTICE / HINT HINT: If the operation of a cellular phone or the navigation receiver assembly is requested, make sure to follow the instructions closely and perform the operation. PROCEDURE
(a) Check that the vehicle and cellular phone meet the following conditions: NOTICE: If changing cellular phone settings, updating software, etc. is necessary, make sure to obtain the permission of the customer before performing it.
(b) Connect the cellular phone to the in-vehicle device and check that it is connected correctly. OK: The cellular phone is connected correctly.
(a) Restart the cellular phone. (b) Turn the ignition switch off. (c) Turn the ignition switch to ACC. (d) Connect the cellular phone to the in-vehicle device and check that it is connected correctly. OK: The cellular phone is connected correctly.
(a) Check if the in-vehicle device can be recognized by the cellular phone. OK: In-vehicle device can be recognized
(a) Clear all "Bluetooth" devices registered to the cellular phone and navigation receiver assembly. (b) Register the cellular phone again. (c) Connect the cellular phone to the in-vehicle device and check that it is connected correctly. OK: The cellular phone is connected correctly.
(a) Check if the customer's cellular phone functions normally using another "Bluetooth" compatible vehicle. HINT:
OK: The cellular phone is connected correctly.
(a) Check if the system functions normally using another "Bluetooth" compatible cellular phone. HINT:
OK: The cellular phone is connected correctly.
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Toyota Tundra Service Manual > Can Communication System: Lost Communication with Tilt and Telescopic Module (U1115)
DESCRIPTION DTC No. DTC Detection Condition Trouble Area U1115 There is no communication from the multiplex tilt and telescopic ECU. Outer multiplex tilt and telescopic ECU CAN branch wire or connector Power source or inside of multiplex tilt and telescopic ECU Multiplex tilt and telescopic ECU grou ...