Inspection Procedure 3
No Sound from One Speaker.Speaker System Circuit <Without Amplifier> Part 1:
Speaker System Circuit <Without Amplifier> Part 2:
CIRCUIT OPERATION
- The sound is heard from the speaker according to audio signal output from the radio and CD player.
TECHNICAL DESCRIPTION (COMMENT)
The cause is probably a faulty speaker circuit system.
TROUBLESHOOTING HINTS
- Malfunction of the speaker.
- Damaged wiring harness or connector.
- Malfunction of the radio and CD player.
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?
Front speaker (LH) : Go to Step 2.
Front speaker (RH) : Go to Step 5.
Rear speaker (LH) : Go to Step 8.
Rear speaker (RH) : Go to Step 11.
STEP 2. Check the front speaker (LH).
1. Remove the front speaker (LH).
2. Check that the front speaker (LH) generates noise when a five-volt voltage is applied on the front speaker (LH) terminal.
Q: Is the front speaker (LH) generating noise?
YES: Go to Step 3.
NO: Replace the front speaker (LH). The front speaker (LH) should sound.
STEP 3. Check front speaker (LH) connector E-13 and radio and CD player connector C-102 for damage.
Q: Are harness connectors E-13 and C-102 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 front speaker (LH) connector E-13 (terminal 1 and 2) and radio and CD player connector C-102 (terminal 5 and 13).
NOTE: Also check intermediate connector C-118. If intermediate connector C-118 is damaged, repair or replace the connector as described in Harness Connector Inspection.
Q: Are the wiring harness between front speaker (LH) connector E-13 (terminal 1 and 2) and radio and CD player connector C-102 (terminal 5 and 13) in good condition?
YES: Repair or replace the radio and CD player. The front speaker (LH) should sound.
NO: Repair the wiring harness. The front speaker (LH) should sound.
STEP 5. Check the front speaker (RH).
1. Remove the front speaker (RH).
2. Check that the front speaker (RH) generates noise when a five-volt voltage is applied on the front speaker (RH) terminal.
Q: Is the front speaker (RH) generating noise?
YES: Go to Step 6.
NO: Replace the front speaker (RH). The front speaker (RH) should sound.
STEP 6. Check front speaker (RH) connector E-20 and radio and CD player connector C-102 for damage.
Q: Are harness connectors E-20 and C-102 in good condition?
YES: Go to Step 7.
NO: Repair or replace the connector. Refer to Harness Connector Inspection. The front speaker (RH) should sound.
STEP 7. Check the wiring harness between front speaker (RH) connector E-20 (terminal 1 and 2) and radio and CD player connector C-102 (terminal 6 and 14).
NOTE: Also check intermediate connector C-15. If intermediate connector C-15 is damaged, repair or replace the connector as described in Harness Connector Inspection.
Q: Are the wiring harness between front speaker (RH) connector E-20 (terminal 1 and 2) and radio and CD player connector C-102 (terminal 6 and 14) in good condition?
YES: Repair or replace the radio and CD player. The front speaker (RH) should sound.
NO: Repair the wiring harness. The front speaker (RH) should sound.
STEP 8. Check the rear speaker (LH).
1. Remove the rear speaker (LH).
2. 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 E-09 and radio and CD player connector C-102 for damage.
Q: Are harness connectors E-09 and C-102 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 E-09 (terminal 1 and 2) and radio and CD player connector C-102 (terminal 8 and 2).
NOTE: Also check intermediate connector C-117 and D-23. If intermediate connector C-117 or D-23 are damaged, repair or replace the connector as described in Harness Connector Inspection.
Q: Are the wiring harness between the rear speaker (LH) connector E-09 (terminal 1 and 2) and radio and CD player connector C-102 (terminal 8 and 2) in good condition?
YES: Repair or replace the radio and CD player. The rear speaker (LH) should sound.
NO: Repair the wiring harness. The rear 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 E-24 and radio and CD player connector C-102 for damage.
Q: Are harness connectors E-24 and C-102 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 E-24 (terminal 1 and 2) and radio and CD player connector C-102 (terminal 1 and 7).
NOTE: Also check intermediate connector C-13 and D-01. If intermediate connector C-13 or D-01 are damaged, repair or replace the connector as described in Harness Connector Inspection.
Q: Are the wiring harness between rear speaker (RH) connector E-24 (terminal 1 and 2) and radio and CD player connector C-102 (terminal 1 and 7) in good condition?
YES: Repair or replace the radio and CD player. The rear speaker (RH) should sound.
NO: Repair the wiring harness. The rear speaker (RH) should sound.