Toyota Tundra Service Manual: Voice Guidance does not Function

PROCEDURE

1.

CHECK VOICE GUIDANCE SETTING

(a) Check that the voice guidance settings are not off.

OK:

Voice guidance settings are not off.

NG

CHANGE VOICE GUIDANCE SETTINGS TO ON

OK

2.

CHECK AUDIO FUNCTION

(a) Check that sound can be heard from a front speaker.

OK:

Sound can be heard.

Result

Result

Proceed to

OK (for Column Shift Type)

A

OK (for Floor Shift Type)

B

NG

C

A

REPLACE NAVIGATION RECEIVER ASSEMBLY

B

REPLACE NAVIGATION RECEIVER ASSEMBLY

C

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

    Vehicle Speed Signal Circuit between Stereo Component Amplifier and Combination Meter

    Voice is not Recognized

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    Toyota Tundra Service Manual > Rear View Monitor System(for Radio And Display Type): Terminals Of Ecu
    TERMINALS OF ECU 1. CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY (a) Disconnect the J137 and J139 radio and display receiver assembly connectors. (b) Measure the voltage and resistance according to the value(s) in the table below. Terminal No. (Symbol) Wiring Color Terminal Description Condition Specif ...

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    Toyota Tundra Service Manual

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