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

    See More:

    Toyota Tundra Service Manual > Forward Recognition Camera System: Front Radar Sensor Region Code Mismatch (C1A0A)
    DESCRIPTION The forward recognition camera receives necessary information from the millimeter wave radar sensor assembly. When the forward recognition camera judges that a millimeter wave radar sensor assembly which is not compatible with the vehicle has been installed, DTC C1A0A is stored. DTC No. ...

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    Toyota Tundra Service Manual

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