INSPECTION PROCEDURE 3: No Sound from One Speaker. < Vehicles with Amplifier >: Diagnosis
- STEP 1. Check to see which speaker the sound is not output from.
Use the speaker test to determine which speaker does not sound.
Q: Which speaker is not working?
- STEP 2. Check the door speaker (LH).
- Remove the door speaker (LH). Refer to SPEAKER .
- Check that the door speaker (LH) generates noise when a five-volt voltage is applied on the door speaker (LH) terminal.
Q: Is the door speaker (LH) generating noise?
- YES: Go to Step 3.
- NO: Replace the door speaker (LH). The door speaker (LH) should sound.
- STEP 3. Check door speaker (LH) connector E-06 and audio amplifier connector D-33 for damage.
Q: Are harness connectors E-06 and D-33 in good condition?
- YES: Go to Step 4.
- NO: Repair or replace the connector. Refer to HARNESS CONNECTOR INSPECTION . The door speaker (LH) should sound.
- STEP 4. Check the wiring harness between door speaker (LH) connector E-06 (terminal 1 and 2) and audio amplifier connector D-33 (terminal 13 and 14.)
NOTE: Also check intermediate connector C-17. If intermediate connector C-17 are damaged, repair or replace the connector as described in HARNESS CONNECTOR INSPECTION .
Q: Are the wiring harness between door speaker (LH) connector E-06 (terminal 1 and 2) and audio amplifier connector D-33 (terminal 13 and 14) in good condition?
- YES: Repair or replace the audio amplifier. The door speaker (LH) should sound.
- NO: Repair the wiring harness. The door speaker (LH) should sound.
- STEP 5. Check the door speaker (RH).
- Remove the door speaker (RH). Refer to SPEAKER .
- Check that the door speaker (RH) generates noise when a five-volt voltage is applied on the door speaker (RH) terminal.
Q: Is the door speaker (RH) generating noise?
- YES: Go to Step 6.
- NO: Replace the door speaker (RH). The door speaker (RH) should sound.
- STEP 6. Check door speaker (RH) connector E-13 and audio amplifier connector D-33 for damage.
Q: Are harness connectors E-13 and D-33 in good condition?
- YES: Go to Step 7.
- NO: Repair or replace the connector. Refer to HARNESS CONNECTOR INSPECTION . The door speaker (RH) should sound.
- STEP 7. Check the wiring harness between door speaker (RH) connector E-13 (terminal 1 and 2) and audio amplifier connector D-33 (terminal 5 and 15.)
NOTE: Also check intermediate connector C-110. If intermediate connector C-110 are damaged, repair or replace the connector as described in HARNESS CONNECTOR INSPECTION .
Q: Are the wiring harness between door speaker (RH) connector E-13 (terminal 1 and 2) and audio amplifier connector D-33 (terminal 5 and 15) in good condition?
- YES: Repair or replace the audio amplifier. The door speaker (RH) should sound.
- NO: Repair the wiring harness. The door speaker (RH) should sound.
- STEP 8. Check the rear speaker (LH).
- Remove the rear speaker (LH). Refer to SPEAKER .
- Check that the rear speaker (LH) generates noise when a five-volt voltage is applied on the rear speaker (LH) terminal.
Q: Is the rear speaker (LH) generating noise?
- YES: Go to Step 9.
- NO: Replace the rear speaker (LH). The rear speaker (LH) should sound.
- STEP 9. Check rear speaker (LH) connector F-01 and audio amplifier connector D-33 for damage.
Q: Are harness connectors F-01 and D-33 in good condition?
- YES: Go to Step 10.
- NO: Repair or replace the connector. Refer to HARNESS CONNECTOR INSPECTION . The rear speaker (LH) should sound.
- STEP 10. Check the wiring harness between rear speaker (LH) connector F-01 (terminal 1 and 2) and audio amplifier connector D-33 (terminal 2 and 10.)
NOTE: Also check intermediate connector C-127. If intermediate connector C-127 is damaged, repair or replace the connector as described in HARNESS CONNECTOR INSPECTION .
Q: Are the wiring harness between the rear speaker (LH) connector F-01 (terminal 1 and 2) and audio amplifier connector D-33 (terminal 2 and 10) in good condition?
- YES: Repair or replace the audio amplifier. The rear speaker (LH) should sound.
- NO: Repair the wiring harness. The rear speaker (LH) should sound.
- STEP 11. Check the rear speaker (RH).
- Remove the rear speaker (RH). Refer to SPEAKER .
- Check that the rear speaker (RH) generates noise when a five-volt voltage is applied on the rear speaker (RH) terminal.
Q: Is the rear speaker (RH) generating noise?
- YES: Go to Step 12.
- NO: Replace the rear speaker (RH). The rear speaker (RH) should sound.
- STEP 12. Check rear speaker (RH) connector F-07 and audio amplifier connector D-33 for damage.
Q: Are harness connectors F-07 and D-33 in good condition?
- YES: Go to Step 13.
- NO: Repair or replace the connector. Refer to HARNESS CONNECTOR INSPECTION . The rear speaker (RH) should sound.
- STEP 13. Check the wiring harness between rear speaker (RH) connector F-07 (terminal 1 and 2) and audio amplifier connector D-33 (terminal 9 and 1.)
NOTE: Also check intermediate connector C-112. If intermediate connector C-112 is damaged, repair or replace the connector as described in HARNESS CONNECTOR INSPECTION .
Q: Are the wiring harness between rear speaker (RH) connector F-07 (terminal 1 and 2) and audio amplifier connector D-33 (terminal 9 and 1) in good condition?
- YES: Repair or replace the audio amplifier. The rear speaker (RH) should sound.
- NO: Repair the wiring harness. The rear speaker (RH) should sound.
- STEP 14. Check the tweeter (LH).
- Remove the tweeter (LH).
- Check that the tweeter (LH) generates noise when a five-volt voltage is applied on the tweeter (LH) terminal.
Q: Is the tweeter (LH) generating noise?
- YES: Go to Step 15.
- NO: Replace the tweeter (LH). The tweeter (LH) should sound.
- STEP 15 Check tweeter (LH) connector D-29 and audio amplifier connector D-33 for damage.
Q: Are harness connectors D-29 and D-33 in good condition?
- YES: Go to Step 16.
- NO: Repair or replace them. Refer to HARNESS CONNECTOR INSPECTION . The tweeter (LH) should sound.
- STEP 16. Check the harness wires between tweeter (LH) connector D-29 (terminal 1 and 2) and audio amplifier connector D-33 (terminal 11 and 3.)
NOTE: After inspecting intermediate connector C-18, inspect the wire. If intermediate connector C-18 are damaged, repair or replace it. Refer to HARNESS CONNECTOR INSPECTION .
Q: Are the harness wires between tweeter (LH) connector D-29 (terminal 1 and 2) and audio amplifier connector D-33 (terminal 11 and 3) in good condition?
- YES: Repair or replace the audio amplifier. The tweeter (LH) should sound.
- NO: Repair them. The tweeter (LH) should sound.
- STEP 17. Check the tweeter (RH).
- Remove the tweeter (RH).
- Check that the tweeter (RH) generates noise when a five-volt voltage is applied on the speaker terminal.
Q: Is the tweeter (RH) generating noise?
- YES: Go to Step 18.
- NO: Replace the tweeter (RH). The tweeter (RH) should sound.
- STEP 18. Check tweeter (RH) connector D-30 and audio amplifier connector D-33 for damage.
Q: Are harness connectors D-30 and D-33 in good condition?
- YES: Go to Step 19.
- NO: Repair or replace them. Refer to HARNESS CONNECTOR INSPECTION . The tweeter (RH) should sound.
- STEP 19. Check the harness wires between tweeter (RH) connector D-30 (terminal 1 and 2) and audio amplifier connector D-33 (terminal 12 and 4.)
NOTE: After inspecting intermediate connector C-109, inspect the wire. If intermediate connector C-109 are damaged, repair or replace it. Refer to HARNESS CONNECTOR INSPECTION .
Q: Are the harness wires between tweeter (RH) connector D-30 (terminal 1 and 2) and audio amplifier connector D-33 (terminal 12 and 4) in good condition?
- YES: Repair or replace the audio amplifier. The tweeter (RH) should sound.
- NO: Repair them. The tweeter (RH) should sound.
- STEP 20. Check the woofer.
- Remove the woofer. Refer to SPEAKER .
- Check that the woofer generates noise when a five-volt voltage is applied on the woofer terminal.
Q: Is the woofer generating noise?
- YES: Go to Step 21.
- NO: Replace the woofer. The woofer should sound.
- STEP 21. Check woofer connector F-17 and audio amplifier connector D-33 for damage.
Q: Are harness connectors F-17 and D-33 in good condition?
- YES: Go to Step 22.
- NO: Repair or replace the connector. Refer to HARNESS CONNECTOR INSPECTION . The woofer should sound.
- STEP 22. Check the wiring harness between woofer connector F-17 (terminal 1 and 2) and audio amplifier connector D-33 (terminal 8 and 18.)
NOTE: Also check intermediate connector C-112. If intermediate connector C-112 is damaged, repair or replace the connector as described in HARNESS CONNECTOR INSPECTION .
Q: Are the wiring harness between woofer connector F-17 (terminal 1 and 2) and audio amplifier connector D-33 (terminal 8 and 18) in good condition?
- YES: Repair or replace the audio amplifier. The woofer should sound.
- NO: Repair the wiring harness. The woofer should sound.