NO DVD SOUND OUTPUT [ENTERTAINMENT SYSTEM [WITH CENTER DISPLAY]]


id0903l8061200

Description
NO DVD SOUND OUTPUT
•  Radio, CD, AUX audio, Bluetooth® audio, Internet radio, USB audio, and guidance audio is output, but not DVD audio
•  DVD images are output, but no audio
Possible Causes
•  DVD disc malfunction
•  Connector poor contact or terminal damage
•  Open circuit in wiring harness between the following terminals:
―  Tuner and amp unit (TAU) terminal 1M and DVD/CD player terminal L
―  Tuner and amp unit (TAU) terminal 1N and DVD/CD player terminal N
―  Tuner and amp unit (TAU) terminal 1O and DVD/CD player terminal P
―  Tuner and amp unit (TAU) terminal 1P and DVD/CD player terminal R
•  Short to ground in wiring harness between the following terminals:
―  Tuner and amp unit (TAU) terminal 1M and DVD/CD player terminal L
―  Tuner and amp unit (TAU) terminal 1N and DVD/CD player terminal N
―  Tuner and amp unit (TAU) terminal 1O and DVD/CD player terminal P
―  Tuner and amp unit (TAU) terminal 1P and DVD/CD player terminal R
•  Short to power supply in wiring harness between the following terminals:
―  Tuner and amp unit (TAU) terminal 1M and DVD/CD player terminal L
―  Tuner and amp unit (TAU) terminal 1N and DVD/CD player terminal N
―  Tuner and amp unit (TAU) terminal 1O and DVD/CD player terminal P
―  Tuner and amp unit (TAU) terminal 1P and DVD/CD player terminal R
•  DVD/CD player malfunction
•  Tuner and amp unit (TAU) malfunction
•  Connectivity master unit (CMU) malfunction


Diagnostic Procedure

Step

Inspection

Action

1
VERIFY DVD DISC CONDITION
•  Verify the DVD disc condition when the malfunction occurred.
•  Is there any dirt or scratches on the DVD disc?
Yes
•  Remove dirt on the DVD disc or replace the DVD disc with no damage.
•  Go to Step 11.
No
Go to the next step.
2
DETERMINE IF MALFUNCTION CAUSE IS DVD DISC
•  After obtaining the customer's consent, replace with a DVD that was not used when the malfunction occurred.
•  Is DVD sound produces?
Yes
Go to the next step.
No
Go to Step 4.
3
VERIFY IF DATA TYPE OTHER THAN VIDEO/DVD-VR IS MIXED IN DVD DISC
•  Verify the DVD disc data content when the malfunction occurred.
•  Is data other than DVD VIDEO/DVD-VR mixed in?
Yes
•  Replace with a DVD disc containing only DVD VIDEO/DVD-VR data and verify the malfunction symptom.
If the malfunction symptom is eliminated
―  System is normal (explain to the customer that the cause was a DVD disc containing data other than DVD VIDEO/DVD-VR).)
If the malfunction symptom is not eliminated
―  Replace the DVD/CD player, then go to Step 11.
No
Go to the next step.
4
INSPECT DVD/CD PLAYER CONNECTOR CONDITION
•  Disconnect the DVD/CD player connector.
•  Inspect the connector engagement and connection condition, and inspect the terminals for damage, deformation, corrosion, or disconnection.
•  Is the connector normal?
Yes
Go to the next step.
No
Repair or replace the connector, then go to Step 11.
5
INSPECT CONNECTIVITY MASTER UNIT (CMU) CONNECTOR CONDITION
•  Disconnect the connectivity master unit (CMU) connector.
•  Inspect the connector engagement and connection condition, and inspect the terminals for damage, deformation, corrosion, or disconnection.
•  Is the connector normal?
Yes
Go to the next step.
No
Repair or replace the connector, then go to Step 11.
6
VERIFY IF MALFUNCTION CAUSE IS OPEN CIRCUIT IN WIRING HARNESS BETWEEN TUNER AMP UNIT (TAU) AND DVD/CD PLAYER
•  Verify that the DVD/CD player and the amp unit (TAU) connector are disconnected.
•  Inspect the wiring harness for continuity between the following terminals (vehicle wiring harness side).
―  Tuner and amp unit (TAU) terminal 1M and DVD/CD player terminal L
―  Tuner and amp unit (TAU) terminal 1N and DVD/CD player terminal N
―  Tuner and amp unit (TAU) terminal 1O and DVD/CD player terminal P
―  Tuner and amp unit (TAU) terminal 1P and DVD/CD player terminal R
•  Is there continuity?
Yes
Go to the next step.
No
•  Refer to the wiring diagram and verify if there is a common connector between the following terminals.
―  Tuner and amp unit (TAU) terminal 1M and DVD/CD player terminal L
―  Tuner and amp unit (TAU) terminal 1N and DVD/CD player terminal N
―  Tuner and amp unit (TAU) terminal 1O and DVD/CD player terminal P
―  Tuner and amp unit (TAU) terminal 1P and DVD/CD player terminal R
If there is a common connector:
•  Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for an open circuit to determine the malfunctioning location.
•  Repair or replace the malfunctioning location.
If there is no common connector:
•  Repair or replace the wiring harness which has an open circuit.
•  Go to Step 11.
7
VERIFY IF MALFUNCTION CAUSE IS SHORT TO GROUND IN WIRING HARNESS BETWEEN TUNER AMP UNIT (TAU) AND DVD/CD PLAYER
•  Verify that the DVD/CD player and the amp unit (TAU) connector are disconnected.
•  Inspect for continuity between the following terminals (vehicle wiring harness side) and body ground.
―  DVD/CD player terminal L
―  DVD/CD player terminal N
―  DVD/CD player terminal P
―  DVD/CD player terminal R
•  Is there continuity?
Yes
•  Refer to the wiring diagram and verify if there is a common connector between the following terminals.
―  Tuner and amp unit (TAU) terminal 1M and DVD/CD player terminal L
―  Tuner and amp unit (TAU) terminal 1N and DVD/CD player terminal N
―  Tuner and amp unit (TAU) terminal 1O and DVD/CD player terminal P
―  Tuner and amp unit (TAU) terminal 1P and DVD/CD player terminal R
If there is a common connector:
•  Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for short to ground to determine the malfunctioning location.
•  Repair or replace the malfunctioning location.
If there is no common connector:
•  Repair or replace the wiring harness which is shorted to ground.
•  Go to Step 11.
No
Go to the next step.
8
VERIFY IF MALFUNCTION CAUSE IS SHORT TO POWER SUPPLY IN WIRING HARNESS BETWEEN TUNER AMP UNIT (TAU) AND DVD/CD PLAYER
•  Verify that the DVD/CD player and the amp unit (TAU) connector are disconnected.
•  Switch the ignition to ACC or ON (engine off or on).
•  Measure the voltage at the following terminals (vehicle wiring harness side).
―  DVD/CD player terminal L
―  DVD/CD player terminal N
―  DVD/CD player terminal P
―  DVD/CD player terminal R
•  Is the voltage B+?
Yes
•  Refer to the wiring diagram and verify if there is a common connector between the following terminals.
―  Tuner and amp unit (TAU) terminal 1M and DVD/CD player terminal L
―  Tuner and amp unit (TAU) terminal 1N and DVD/CD player terminal N
―  Tuner and amp unit (TAU) terminal 1O and DVD/CD player terminal P
―  Tuner and amp unit (TAU) terminal 1P and DVD/CD player terminal R
If there is a common connector:
•  Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for short to power supply to determine the malfunctioning location.
•  Repair or replace the malfunctioning location.
If there is no common connector:
•  Repair or replace the wiring harness which is shorted to the power supply.
•  Go to Step 11.
No
Go to the next step.
9
VERIFY IS MALFUNCTION CAUSE IS DVD/CD PLAYER
•  Replace the DVD/CD player.
•  Connect all the connectors.
•  Switch the ignition to ACC or ON (engine off or on).
•  Insert the DVD disc when the malfunction occurred.
•  Is DVD sound produced?
Yes
Troubleshooting completed. (Explain the contents of the servicing to the customer.)
No
Go to the next step.
10
VERIFY IF MALFUNCTION CAUSE IS TUNER AND AMP UNIT (TAU)
•  Replace the tuner and amp unit (TAU).
•  Connect all the connectors.
•  Switch the ignition to ACC or ON (engine off or on).
•  Insert the DVD disc when the malfunction occurred.
•  Is DVD sound produced?
Yes
Troubleshooting completed. (Explain the contents of the servicing to the customer.)
No
Replace the connectivity master unit (CMU), then go to the next step.
11
VERIFY IF MALFUNCTION CAUSE IS CORRECTED
•  Switch the ignition to ACC or ON (engine off or on).
•  Insert the DVD disc when the malfunction occurred.
•  Is DVD sound produced?
Yes
Troubleshooting completed. (Explain the contents of the servicing to the customer.)
No
Verify the malfunction symptom in the symptom troubleshooting chart and perform the other applicable malfunction diagnosis.