Toyota Tundra. Manual — part 510

OK: Go to Next Step

3. CHECK SETTINGS

a. Check if the volume level is set to a low level on the CALL screen.

Fig. 165: Display - Call Screen On Volume Level
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

OK: The level is not low.

NG: SET VOLUME TO HIGH

OK: Go to Next Step

4. CHECK SETTINGS

a. Enter the "Handsfree Voice Quality Set" mode (see BLUETOOTH TEL CHECK MODE ).

Fig. 166: Display - Handsfree Voice Quality Set Mode
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b. Check if the Receive Voice Level is set to "0".

HINT:

The Receive Voice Level can be set to 11 different levels, -5 to +5, with a 3 dB difference.

c. Check if the Receive Voice Level is set to the minimum or maximum level.

HINT:

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Navigation - Tundra

When the Receive Voice Level is set to the minimum or maximum level, the sound may be
distorted.

OK: The Receive Voice Level is set to "0".

NG: SET RECEIVE VOICE LEVEL TO "0"

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS
TABLE

THE OTHER CALLER CANNOT HEAR YOUR VOICE, OR YOUR VOICE IS TOO QUIET OR
DISTORTED

INSPECTION PROCEDURE

1. CHECK CELLULAR PHONE

a. Check if the other side can hear your voice properly.

OK: Your voice can be heard correctly.

NG: REPLACE CELLULAR PHONE

OK: Go to Next Step

2. CHECK SETTINGS

a. Check if the mute switch is set to ON.

Fig. 167: Display - Call Screen On Volume Level
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

OK: Mute switch is not set to ON.

NG: TURN MUTE SWITCH OFF

OK: Go to Next Step

3. CHECK SETTINGS

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Navigation - Tundra

a. Enter the "Handsfree Voice Quality Set" mode (see BLUETOOTH TEL CHECK MODE ).

Fig. 168: Display - Handsfree Voice Quality Set Mode
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b. Check if the Send Voice Level is set to "0".

HINT:

The Send Voice Level can be set to 11 different levels, -5 to +5, with a 3 dB difference.

c. Check if the Send Voice Level is set to the minimum or maximum level.

HINT:

When the Send Voice Level is set to the minimum or maximum level, the sound may be distorted.

OK: The Send Voice Level is set to "0".

NG: SET SEND VOICE LEVEL TO "0"

OK: Go to Next Step

4. CHECK MICROPHONE (NAVIGATION CHECK MODE)

a. Enter the "MICROPHONE & VOICE RECOGNITION CHECK" mode (see NAVIGATION

CHECK MODE ).

b. When a voice is input into the microphone, check that the microphone input level meter changes

according to the input voice.

c. Push the recording switch and perform voice recording.

HINT:

The recording limit is 5 seconds.

d. Check that the recording indicator remains on while recording and that the recorded voice is played

normally without noise or distortion.

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Navigation - Tundra

OK: All check results are normal.

Result

MICROPHONE (NAVIGATION CHECK MODE)

Fig. 169: Display - Microphone Voice Recognition Check Mode
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

B: REPLACE NAVIGATION RECEIVER (see REMOVAL (For Floor Shift Type) )

C: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

A: REPLACE NAVIGATION RECEIVER (see REMOVAL (For Column Shift Type) )

VEHICLE SPEED SIGNAL CIRCUIT BETWEEN NAVIGATION RECEIVER ASSEMBLY AND
COMBINATION METER

DESCRIPTION

This circuit sends a speed signal from the combination meter to the navigation receiver.

HINT:



A voltage of 12 V or 5 V is output from each ECU and then input to the combination meter. The signal is
changed to a pulse signal at the transistor in the combination meter. Each ECU controls its respective
system based on the pulse signal.



If a short occurs in any of the ECUs or in the wire harness connected to an ECU, both systems in the

Result

Proceed to

OK (for Column Shift Type)

A

OK (for Floor Shift Type)

B

NG

C

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Navigation - Tundra