Inspection Procedure 3A
No sound from one speaker.Speaker System Circuit <Vehicles Without Amplifier>:
Speaker System Circuit <Vehicles With Amplifier>:
Connectors:
CIRCUIT OPERATION
-
The sound is heard from the speaker according to audio signal output from the radio and CD player.
-
The sound signals are sent from the radio, tape player and CD auto changer into the amplifier. After the signals are amplified and filtered, the sound signals are sent to the speaker.
TECHNICAL DESCRIPTION (COMMENT)
The cause is probably a faulty speaker circuit system.
TROUBLESHOOTING HINTS
- Malfunction of the speaker.
- Damaged harness wire or connector.
- Malfunction of the radio and CD player
- Malfunction of the amplifier
- Malfunction of the DIN cable
DIAGNOSIS
STEP 1A. Which speaker has no sound on the vehicles without amplifier?
1. Use the speaker test to determine which speaker does not sound.
Q: Which speaker has no sound on the vehicles without amplifier?
Door speaker (LH): Go to Step 2.
Door speaker (RH): Go to Step 5.
Rear speaker (LH): Go to Step 8.
Rear speaker (RH): Go to Step 11.
Tweeter (LH): Go to Step 14.
Tweeter (RH): Go to Step 17.
STEP 1B. Which speaker has no sound on the vehicles with amplifier?
1. Use the speaker test to determine which speaker does not sound.
Q: Which speaker has no sound on the vehicles without amplifier?
Door speaker (LH): Go to Step 20.
Door speaker (RH): Go to Step 24.
Rear speaker (LH): Go to Step 28.
Rear speaker (RH): Go to Step 32.
Tweeter (LH): Go to Step 36.
Tweeter (RH): Go to Step 40.
Center speaker: GO to Step 44.
STEP 2. Check the door speaker (LH).
1. Remove the door speaker (LH).
2. 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-10 and radio and CD player connector C-11 for damage.
Q: Are harness connectors E-10 and C-11 in good condition?
YES: Go to Step 4.
NO: Repair or replace them. Refer to Harness Connector Inspection. The door speaker (LH) should sound.
STEP 4. Check the harness wires between door speaker (LH) connector E-10 and radio and CD player connector C-11.
NOTE: After inspecting intermediate connector -211, inspect the wire. If intermediate connector C-211 is damaged, repair or replace it. Refer to Harness Connector Inspection.
Q: Are the harness wires between door speaker (LH) connector E-10 and radio and CD player connector C-11 in good condition?
YES: Repair or replace the radio and CD player. The door speaker (LH) should sound.
NO: Repair them. The door speaker (LH) should sound.
STEP 5. Check the door speaker (RH).
1. Remove the door speaker (RH).
2. 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-01 and radio and CD player connector C-11 for damage.
Q: Are harness connectors E-01 and C-11 in good condition?
YES: Go to Step 7.
NO: Repair or replace them. Refer to Harness Connector Inspection. The door speaker (RH) should sound.
STEP 7. Check the harness wires between door speaker (RH) connector E-01 and radio and CD player connector C-11.
NOTE: After inspecting intermediate connector C-213, inspect the wire. If intermediate connector C-213 is damaged, repair or replace it. Refer to Harness Connector Inspection.
Q: Are the harness wires between door speaker (RH) connector E-01 and radio and CD player connector C-11 in good condition?
YES: Repair or replace the radio and CD player. The door speaker (RH) should sound.
NO: Repair them. The door speaker (RH) should sound.
STEP 8. Check the rear speaker (LH).
1. Remove the rear speaker (LH).
2. heck 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 door speaker (LH) should sound.
STEP 9. Check rear speaker (LH) connector F-15 and radio and CD player connector C-11 for damage.
Q: Are harness connectors F-15 and C-11 in good condition?
YES: Go to Step 10.
NO: Repair or replace them. Refer to Harness Connector Inspection. The rear speaker (LH) should sound.
STEP 10. Check the harness wires between rear speaker (LH) connector F-15 and radio and CD player connector C-11.
NOTE: After inspecting intermediate connector C-210, inspect the wire. If intermediate connector C-210 damaged, repair or replace them. Refer to Harness Connector Inspection.
Q: Are the harness wires between the rear door speaker (LH) connector H-12 and radio and CD player connector D-06 in good condition?
YES: Repair or replace the radio and CD player. The rear door speaker (LH) should sound.
NO: Repair them. The rear door speaker (LH) should sound.
STEP 11. Check the rear speaker (RH).
1. Remove the rear speaker (RH).
2. 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 radio and CD player connector C-11 for damage.
Q: Are harness connectors F-07 and C-11 in good condition?
YES: Go to Step 13.
NO: Repair or replace them. Refer to Harness Connector Inspection. The rear door speaker (RH) should sound.
STEP 13. Check the harness wires between rear speaker (RH) connector F-07 and radio and CD player connector C-11.
NOTE: After inspecting intermediate connector C-210, inspect the wire. If intermediate connector C-210 is damaged, repair or replace it. Refer to Harness Connector Inspection.
Q: Are the harness wires between rear speaker (RH) connector F-07 and radio and CD player connector C-11 in good condition?
YES: Repair or replace the radio and CD player. The rear speaker (RH) should sound.
NO: Repair them. The rear speaker (RH) should sound.
STEP 14. Check the tweeter (LH).
1. Remove the tweeter (LH).
2. 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 E-08 and radio and CD player connector C-11 for damage.
Q: Are harness connectors E-08 and C-11 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 E-08 and radio and CD player connector C-11.
NOTE: After inspecting intermediate connector C-211, inspect the wire. If intermediate connector C-211 is damaged, repair or replace it. Refer to Harness Connector Inspection.
Q: Are the harness wires between tweeter (LH) connector E-08 and radio and CD player connector C-11 in good condition?
YES: Repair or replace the radio and CD player. The tweeter (LH) should sound.
NO: Repair them. The tweeter (LH) should sound.
STEP 17. Check the tweeter (RH).
1. Remove the tweeter (RH).
2. 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 E-03 and radio and CD player connector C-11 for damage.
Q: Are harness connectors E-03 and C-11 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 E-03 and radio and CD player connector C-11.
NOTE: After inspecting intermediate connector C-213, inspect the wire. If intermediate connector C-213 is damaged, repair or replace it. Refer to Harness Connector Inspection.
Q: Are the harness wires between tweeter (RH) connector E-03 and radio and CD player connector C-11 in good condition?
YES: Repair or replace the radio and CD player. The tweeter (RH) should sound.
NO: Repair them. The tweeter (RH) should sound.
STEP 20. Check the door speaker (LH).
1. Remove the door speaker (LH).
2. 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 21.
NO: Replace the door speaker (LH). The door speaker (LH) should sound.