No Sound/No Display With Auxiliary Video Unit Inputs
No sound/no display with auxiliary video unit inputsNOTE:
- Check the vehicle battery condition first.
- Check that the auxiliary device is properly connected, and has fresh batteries or power source connected.
- Do not connect an RCA type shorting plug with the auxiliary jack assembly 16P connected, or system damage may occur.
1. Turn the ignition switch ON (II).
2. Connect an auxiliary video source, and check the volume/display operation.
Are the sound and display normal?
YES - Operation is normal at this time.
NO - Go to step 3.
3. Substitute a known-good auxiliary video unit, and recheck.
Does the auxiliary video unit operate properly?
YES - Original auxiliary video unit faulty.
NO - Go to step 4.
4. Check the Diagnosis Menu 1. CONNECT of the rear entertainment system self-diagnostic mode.
Is the auxiliary jack assembly connection OK (green color)?
YES - Go to step 7.
NO - Go to step 5.
5. Turn the ignition switch OFF.
6. Remove the auxiliary jack assembly. Check that the auxiliary jack assembly is properly connected.
Is the auxiliary jack assembly connected properly?
YES - Go to step 7.
NO - Reconnect the connector, and recheck the function.
7. Remove the audio unit, and disconnect audio unit connector D (40P).
8. Disconnect auxiliary jack assembly 16P connector.
9. Check for continuity between body ground and audio unit connector D (40P) terminal No.25 and No.27 individually.
Is there continuity?
YES - Short to body ground in the wire(s) between audio unit connector D (40P) and auxiliary jack assembly 16P connector. Replace the affected shielded harness.
NO - Go to step 10.
10. Check for continuity between audio unit connector D (40P) according to the table.
Is there continuity between any of the terminals?
YES - Short in the wire(s) between audio unit connector D (40P) and auxiliary jack assembly 16P connector. Replace the affected shielded harness.
NO - Go to step 11.
11. Check for continuity between audio unit connector D (40P) and auxiliary jack assembly 16P connector according to the table.
Is there continuity?
YES - Go to step 12.
NO - Open in the wire(s) between audio unit connector D (40P) and auxiliary jack assembly 16P connector. Replace the affected shielded harness.
12. Check for continuity between body ground and audio unit connector D (40P) terminal No. 29, No 31 and No. 32 individually.
Is there continuity?
YES - Short to body ground in the wire(s) between audio unit connector D (40P) and auxiliary jack assembly 16P connector. Replace the affected shielded harness.
NO - Go to step 13.
13. Check for continuity between the audio unit connector D (40P) according to the table.
Is there continuity between any of the terminals?
YES - Short in the wire(s) between audio unit connector D (40P) and auxiliary jack assembly 16P connector. Replace the affected shielded harness.
NO - Go to step 14.
14. Check for continuity between audio unit connector D (40P) and auxiliary jack assembly 16P connector according to the table.
Is there continuity?
YES - Go to step 15.
NO - Open in the wire(s) between audio unit connector D (40P) and auxiliary jack assembly 16P connector. Replace the affected shielded harness.
15. Connect an RCA type shorting plug to each audio input (R and L).
NOTE: Do not connect the RCA type shorting plug with the auxiliary jack assembly 16P connector, or system damage may occur.
16. Check for continuity between the following terminals of the auxiliary jack assembly.
Is there continuity?
YES - Go to step 17.
NO - Faulty auxiliary jack assembly.
17. Remove the RCA type shorting plug(s) and check the same terminals again for continuity.
Is there continuity?
YES - Faulty auxiliary jack assembly.
NO - Faulty audio unit.