NO.6 NO VOICE NAVIGATION [CAR-NAVIGATION SYSTEM]

id0903e8910500

6

No voice navigation.
POSSIBLE CAUSE
•  Improper adjustment of the navigation voice volume
•  Poor connection of driver-side front door speaker connector, terminal damage
•  Front door speaker malfunction
•  Poor connection of car-navigation unit connector, terminal damage
•  Open or short circuit in wiring harness between car-navigation unit and front door speaker through audio amplifier.
•  Car-navigation unit malfunction
•  Poor connection of audio amplifier connector, terminal damage
•  Audio amplifier malfunction (with Bose®)

Diagnostic procedure

STEP

INSPECTION

ACTION
1
•  Is the voice navigation mute?
Yes
Turn on the voice navigation.
No
Go to the next step.
2
•  Turn the audio power switch (CD, radio) to ON.
•  Does front door speaker work?
Yes
Go to Step 6.
No
Go to the next step.
3
•  Turn the ignition switch to the LOCK position.
•  Remove the front door speaker.
Yes
Go to the next step.
No
Securely connect the front door speaker connector.
4
•  Disconnect the front door speaker connector (2-pin).
•  Inspect both the front door speaker and wiring harness-side connector for poor connection (such as damaged/pulled out pins, corrosion).
•  Are all the pins normal?
Yes
Go to the next step.
No
If the front door speaker connector is wrong:
•  Replace the front door speaker.
If the wiring harness-side connector is wrong:
•  Repair or replace the pins and/or the connector.
5
•  Inspect the front door speakers.
•  Are they normal?
Yes
Go to the next step.
No
Replace the front door speaker.
(See FRONT DOOR SPEAKER REMOVAL/INSTALLATION.)
6
•  Inspect the connection of car-navigation unit connector (24-pin).
•  Is the connector securely connected?
Yes
Go to the next step.
No
Securely connect the car-navigation unit connector.
7
•  Disconnect the car-navigation unit connector (24-pin).
•  Inspect both the car-navigation unit and wiring harness-side connector terminal for poor connection (such as damaged/pulled out pins, corrosion).
•  Are all pins normal?
Yes
Bose® system equipped model:
•  Go to Step 9.
Bose® system not equipped model:
•  Go to the next step.
No
If the car-navigation unit connector is wrong:
•  Replace the car-navigation unit.
If the wiring harness-side connector is wrong:
•  Repair or replace the pins and/or the connector.
8
•  Inspect there continuity between following car-navigation unit and front door speaker at harness-side connector.
―  Car-navigation unit terminal 1A (24-pin) — front door speaker terminal B (LH+)
―  Car-navigation unit terminal 1C (24-pin) — front door speaker terminal A (LH-)
―  Car-navigation unit terminal 1D (24-pin) — front door speaker terminal B (RH+)
―  Car-navigation unit terminal 1F (24-pin) — front door speaker terminal A (RH-)
•  Is there continuity?
Yes
Inspect for short circuit in wiring harness.
•  If there is a short circuit, repair or replace the suspect wiring harness.
•  If the wiring harness is okay, replace the car-navigation unit.
No
Repair or replace wiring harness.
9
•  Inspect the connection of audio amplifier connector.
•  Is the connector securely connected?
Yes
Go to the next step.
No
Securely connect the audio amplifier connector.
10
•  Disconnect the audio amplifier connector.
•  Inspect both the audio amplifier and wiring harness-side connector terminal 1C, 1D, 1E, 1F, 2D, 2B, 2M and 2O for poor connection (such as damaged/pulled out pins, corrosion).
•  Are all pins normal?
Yes
Go to the next step.
No
If the audio amplifier connector is wrong:
•  Replace the audio amplifier.
If the wiring harness-side connector is wrong:
•  Repair or replace the pins and/or the connector.
11
•  Inspect there continuity between following car-navigation unit and audio amplifier at harness-side connector.
―  Car-navigation unit terminal 1A (24-pin) — audio amplifier terminal 3D (LH+)
―  Car-navigation unit terminal 1C (24-pin) — audio amplifier terminal 3C (LH-)
―  Car-navigation unit terminal 1D (24-pin) — audio amplifier terminal 3F (RH+)
―  Car-navigation unit terminal 1F (24-pin) — audio amplifier terminal 3E (RH-)
•  Is there continuity?
Yes
Inspect for short circuit in wiring harness.
•  If there is a short circuit, repair or replace the suspect wiring harness.
•  If the wiring harness is okay, go to Step 13.
No
Repair or replace wiring harness.
12
•  Inspect there continuity between following audio amplifier and front door speaker at harness-side connector.
―  Audio amplifier terminal 2D — front door speaker terminal C (LH+)
―  Audio amplifier terminal 2B — front door speaker terminal D (LH-)
―  Audio amplifier terminal 2O — front door speaker terminal D (RH+)
―  Audio amplifier terminal 2M — front door speaker terminal C (RH-)
•  Is there continuity?
Yes
Inspect for short circuit in wiring harness.
•  If there is a short circuit, repair or replace the suspect wiring harness.
•  If the wiring harness is okay, go to the next step.
No
Repair or replace wiring harness.
13
•  Replace the audio amplifier.
•  Does the voice navigation operation properly?
Yes
Troubleshooting is completed.
No
Replace the car-navigation unit.
(See CENTER PANEL UNIT REMOVAL/INSTALLATION.)
(See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY.)