Phone screen To display the screen shown below, press the Several functions are available to operate on each screen that is displayed by selecting the 4 tabs.
■ Microphone The vehicle's built in microphone is used when talking on the phone. The person you are speaking to can be heard from the front speakers.
To use the hands-free system, you must register your Bluetooth phone in the system. Status display You can check indicators such as signal strength and battery charge on any screen.
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Toyota Tundra Service Manual > Can Communication System: Check Bus 3 Lines for Short Circuit
DESCRIPTION There may be a short circuit between the bus 3 CAN main wires and/or CAN branch wires when the resistance between terminals 6 (CA3H) and 21 (CA3L) or 19 (CAYH) and 20 (CAYL) of the central gateway ECU (network gateway ECU) is below 54 Ω. Symptom Trouble Area *1: w/ Audio and Visual Syst ...