Inspection Procedure 6
INSPECTION PROCEDURE 6: No Sound from One SpeakerSpeaker System Circuit Vehicle Without Audio Amplifier Part 1:
Speaker System Circuit Vehicle Without Audio Amplifier Part 2:
CIRCUIT OPERATION
The speakers sound 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
DIAGNOSIS
STEP 1. Check which speaker has no sound on the vehicles with audio amplifier.
Determine which speaker does not sound
Q: Which speaker does not sound?
Tweeter (LH) : Go to Step 2 Tweeter (RH) : Go to Step 5
Front door speaker (LH) : Go to Step 8
Front door speaker (RH) : Go to Step 11
Rear speaker (LH) : Go to Step 14
Rear speaker (RH) : Go to Step 17
STEP 2 Check the tweeter (LH)
1. Remove the tweeter (LH) Refer to
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 3
NO: Replace the tweeter (LH) The tweeter (LH) should sound
STEP 3 Check tweeter (LH) connector C-129 and radio and CD player connector C-111 for loose, corroded or damaged terminals, or terminals pushed back in the connector
Q: Are harness connectors C-129 and C-111 in good condition?
YES: Go to Step 4
NO: Repair or replace the component(s) Refer to Harness Connector Inspection The tweeter (LH) should sound
STEP 4 Check the wiring harness between tweeter (LH) connector C-129 (terminals 1 and 2) and radio and CD player connector C-111 (terminals 5 and 13)
Q: Is the wiring harness between tweeter (LH) connector C-129 (terminals 1 and 2) and radio and CD player connector C-111 (terminals 5 and 13) in good condition?
YES: The procedure is complete
NO: Repair the wiring harness The tweeter (LH) should sound
STEP 5 Check the tweeter (RH)
1. Remove the tweeter (RH) Refer to P54A-228 2 Check that the tweeter (RH) generates noise when a five-volt voltage is applied on the tweeter (RH) terminal
Q: Is the tweeter (RH) generating noise?
YES: Go to Step 6
NO: Replace the tweeter (RH) The tweeter (RH) should sound
STEP 6 Check tweeter (RH) connector C-108 and radio and CD player connector C-111 for loose, corroded or damaged terminals, or terminals pushed back in the connector
Q: Are harness connectors C-108 and C-111 in good condition?
YES: Go to Step 7
NO: Repair or replace the component(s) Refer to Harness Connector Inspection The tweeter (RH) should sound
STEP 7 Check the wiring harness between tweeter (RH) connector C-108 (terminals 1 and 2) and radio and CD player connector C-111 (terminals 6 and 14)
Q: Is the wiring harness between tweeter (RH) connector C-108 (terminals 1 and 2) and radio and CD player connector C-111 (terminals 6 and 14) in good condition?
YES: The procedure is complete
NO: Repair the wiring harness The tweeter (RH) should sound
STEP 8 Check the front door speaker (LH)
1. Remove the front door speaker (LH) Refer to 2 Check that the front door speaker (LH) generates noise when a five-volt voltage is applied on the front door speaker (LH) terminal
Q: Is the front door speaker (LH) generating noise?
YES: Go to Step 9
NO: Replace the front door speaker (LH) The front door speaker (LH) should sound
STEP 9 Check front door speaker (LH) connector E-10 and radio and CD player connector C-111 for loose, corroded or damaged terminals, or terminals pushed back in the connector
Q: Are harness connectors E-10 and C-111 in good condition?
YES: Go to Step 10
NO: Repair or replace the component(s) Refer to Harness Connector Inspection The front door speaker (LH) should sound
STEP 10 Check the wiring harness between front door speaker (LH) connector E-10 (terminals 1 and 2) and radio and CD player connector C-111 (terminals 5 and 13)
NOTE: Also check intermediate connector C-26 for loose, corroded, or damaged terminals, or terminals pushed back in the connector If intermediate connector C-26 is damaged, repair or replace the connector as described in Harness Connector Inspection
Q: Is the wiring harness between front door speaker (LH) connector E-10 (terminals 1 and 2) and radio and CD player connector C-111 (terminals 5 and 13) in good condition?
YES: The procedure is complete
NO: Repair the wiring harness The front door speaker (LH) should sound
STEP 11 Check the front door speaker (RH)
1. Remove the front door speaker (RH)
2. Check that the front door speaker (RH) generates noise when a five-volt voltage is applied on the front door speaker (RH) terminal
Q: Is the front door speaker (RH) generating noise?
YES: Go to Step 12
NO: Replace the front door speaker (RH) The front door speaker (RH) should sound
STEP 12 Check front door speaker (RH) connector E-02 and radio and CD player connector C-111 for loose, corroded or damaged terminals, or terminals pushed back in the connector
Q: Are harness connectors E-02 and C-111 in good condition?
YES: Go to Step 13
NO: Repair or replace the component(s) Refer to Harness Connector Inspection The front door speaker (RH) should sound
STEP 13 Check the wiring harness between front door speaker (RH) connector E-02 (terminals 1 and 2) and radio and CD player connector C-111 (terminals 6 and 14)
NOTE: Also check intermediate connector C-12 for loose, corroded, or damaged terminals, or terminals pushed back in the connector If intermediate connector C-12 is damaged, repair or replace the connector as described in Harness Connector Inspection
Q: Is the wiring harness between front door speaker (RH) connector E-02 (terminals 1 and 2) and radio and CD player connector C-111 (terminals 6 and 14) in good condition?
YES: The procedure is complete
NO: Repair the wiring harness The front door speaker (RH) should sound
STEP 14 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 15
NO: Replace the rear speaker (LH) The rear speaker (LH) should sound
STEP 15 Check rear speaker (LH) connector D-12 and radio and CD player connector C-111 for loose, corroded or damaged terminals, or terminals pushed back in the connector
Q: Are harness connectors D-12 and C-111 in good condition?
YES: Go to Step 16
NO: Repair or replace the component(s) Refer to Harness Connector Inspection The rear speaker (LH) should sound
STEP 16 Check the wiring harness between rear speaker (LH) connector D-12 (terminals 1 and 2) and radio and CD player connector C-111 (terminals 2 and 8)
NOTE: Also check intermediate connector C-28 for loose, corroded, or damaged terminals, or terminals pushed back in the connector If intermediate connector C-28 is damaged, repair or replace the connectors as described in Harness Connector Inspection
Q: Is the wiring harness between the rear speaker (LH) connector D-12 (terminals 1 and 2) and radio and CD player connector C-111 (terminals 2 and 8) in good condition?
YES: Replace the radio and CD player The rear speaker (LH) should sound
NO: Repair the wiring harness The rear speaker (LH) should sound
STEP 17 Check the rear speaker (RH)
1. Remove the rear speaker (RH) Refer to
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 18
NO: Replace the rear speaker (RH) The rear speaker (RH) should sound
STEP 18 Check rear speaker (RH) connector D-09 and radio and CD player connector C-111 for loose, corroded or damaged terminals, or terminals pushed back in the connector
Q: Are harness connectors D-09 and C-111 in good condition?
YES: Go to Step 19
NO: Repair or replace the component(s) Refer to Harness Connector Inspection The rear speaker (RH) should sound.
STEP 19 Check the wiring harness between rear speaker (RH) connector D-09 (terminals 1 and 2) and radio and CD player connector C-111 (terminals 1 and 7)
NOTE: Also check intermediate connector C-13 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector C-13 is damaged, repair or replace the connectors as described in Harness Connector Inspection.
Q: Is the wiring harness between rear speaker (RH) connector D-09 (terminals 1 and 2) and radio and CD player connector C-111 (terminals 1 and 7) in good condition?
YES: Replace the radio and CD player. The rear speaker (RH) should sound.
NO: Repair the wiring harness. The rear speaker (RH) should sound.