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


id0903e8910500

6

No voice navigation.

POSSIBLE CAUSE
•  Improper adjustment of the navigation voice volume
•  Car-navigation unit malfunction
•  Poor connection of 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.
•  Poor connection of audio amplifier connector, terminal damage

Diagnostic procedure

STEP

INSPECTION

ACTION

1
•  Is the voice navigation mute?
Yes
Go to the next step.
No
Turn on the voice navigation.
2
•  Turn the audio power switch (CD, radio) to ON.
•  Does the front speaker work?
Yes
Go to Step 6.
No
Go to the next step.
3
•  Turn the ignition switch to LOCK position.
•  Remove the front door speaker.
•  Is front door speaker securely connected?
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 speaker.
•  Is it normal?
Yes
Go to the next step.
No
Replace the front door speaker.
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 1A and 1C for poor connection (such as damaged/pulled out pins, corrosion).
•  Are all pins normal?
Yes
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 the continuity between following terminals:
―  Car-navigation unit terminal 4O (NAVI+) — audio amplifier terminal 2H
―  Car-navigation unit terminal 4P (NAVI-) — audio amplifier terminal 2G
•  Is there continuity?
Yes
Go to the next step.
No
Repair or replace the related wiring harness between the audio amplifier and the car-navigation unit.
Then go to the next step.
9
•  Inspect the connection of the audio amplifier connector.
•  Is the connector connected securely?
Yes
Go to the next step.
No
Connect the audio amplifier securely.
10
•  Turn the ignition switch to the LOCK position.
•  Disconnect the audio amplifier connector.
•  Inspect the continuity between following terminals: Inspect the continuity between the following terminals of the audio amplifier connector and speaker connector.
―  Audio amplifier terminal 3N — front door speaker (LH) terminal A
―  Audio amplifier terminal 3L — front door speaker (LH) terminal B
―  Audio amplifier terminal 3M — front door speaker (RH) terminal A
―  Audio amplifier terminal 3K — front door speaker (RH) terminal B
•  Is there continuity?
Yes
Replace the speaker.
No
Repair or replace the related wiring harness.