INSPECTION PROCEDURE 7: No Sound from One Speaker. < Vehicles with Seven Speakers >: Diagnosis

STEP 1. Check which speaker has no sound on the vehicles with seven speakers.
Determine which speaker does not sound.

Q: Which speaker does not sound?
1. Tweeter (LH): Go to Step 2.
2. Tweeter (RH) : Go to Step 5.
3. Front door speaker (LH) : Go to Step 8.
4. Front door speaker (RH) : Go to Step 11.
5. Rear door speaker (LH) : Go to Step 14.
6. Rear door speaker (RH) : Go to Step 17.
7. Woofer : Go to Step 20.
STEP 2. Check the tweeter (LH).
1. Remove the tweeter (LH). Refer to SPEAKER .
2. Check that the tweeter (LH) generates noise when a five-volt voltage is applied on the tweeter (LH) terminal.
  
  Fig 1: Checking Tweeter (LH)
  Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Q: Is the tweeter (LH) generating noise?
1. YES : Go to Step 3.
2. NO : Replace the tweeter (LH). The tweeter (LH) should sound.
STEP 3. Check tweeter (LH) connector C-126 and audio amplifier connector C-11 for loose, corroded or damaged terminals, or terminals pushed back in the connector.

Fig 2: Identifying Audio Amplifier Connector C-11
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Fig 3: Identifying Tweeter (LH) Connector C-126
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Q: Are harness connectors C-126 and C-11 in good condition?
1. YES : Go to Step 4.
2. NO : Repair or replace the damaged component(s). Refer to HARNESS CONNECTOR INSPECTION . The tweeter (LH) should sound.
STEP 4. Check the wiring harness between tweeter (LH) connector C-126 (terminals 1 and 2) and audio amplifier connector C-11 (terminals 3 and 11).

Fig 4: Identifying Audio Amplifier Connector C-11 (Terminals 3 And 11)
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Fig 5: Identifying Tweeter (LH) Connector C-126 (Terminals 1 And 2)
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Q: Is the wiring harness between tweeter (LH) connector C-126 (terminals 1 and 2) and audio amplifier connector C-11 (terminals 3 and 11) in good condition?
1. YES : Replace the audio amplifier. The tweeter (LH) should sound.
2. NO : Repair the wiring harness. The tweeter (LH) should sound.
STEP 5. Check the tweeter (RH).
1. Remove the tweeter (RH). Refer to SPEAKER .
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?
1. YES : Go to Step 6.
2. NO : Replace the tweeter (RH). The tweeter (RH) should sound.
  
  Fig 6: Checking Tweeter (RH)
  Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
STEP 6. Check tweeter (RH) connector C-107 and audio amplifier connector C-11 for loose, corroded or damaged terminals, or terminals pushed back in the connector.

Fig 7: Identifying Tweeter (RH) Connector C-107 And Audio Amplifier Connector C-11
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Q: Are harness connectors C-107 and C-11 in good condition?
1. YES : Go to Step 7.
2. NO : Repair or replace the damaged component(s). Refer to HARNESS CONNECTOR INSPECTION . The tweeter (RH) should sound.
STEP 7. Check the wiring harness between tweeter (RH) connector C-107 (terminals 1 and 2) and audio amplifier connector C-11 (terminals 4 and 12).

Fig 8: Identifying Tweeter (RH) Connector C-107 (Terminals 1 And 2) And Audio Amplifier Connector C-11 (Terminals 4 And 12)
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Q: Is the wiring harness between tweeter (RH) connector C-107 (terminals 1 and 2) and audio amplifier connector C-11 (terminals 4 and 12) in good condition?
1. YES : Replace the audio amplifier. The tweeter (RH) should sound.
2. 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 SPEAKER .
2. Check that the front door speaker (LH) generates noise when a five-volt voltage is applied on the front door speaker (LH) terminal.
  
  Fig 9: Checking Front Door Speaker (LH)
  Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Q: Is the front door speaker (LH) generating noise?
1. YES : Go to Step 9.
2. NO : Replace the front door speaker (LH). The front door speaker (LH) should sound.
STEP 9. Check front door speaker (LH) connector E-16 and audio amplifier connector C-11 for loose, corroded or damaged terminals, or terminals pushed back in the connector.

Fig 10: Identifying Audio Amplifier Connector C-11
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Fig 11: Identifying Front Door Speaker (LH) Connector E-16
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Q: Are harness connectors E-16 and C-11 in good condition?
1. YES : Go to Step 10.
2. NO : Repair or replace the damaged 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-16 (terminals 1 and 2) and audio amplifier connector C-11 (terminals 13 and 14).

Fig 12: Identifying Front Door Speaker (LH) Connector E-16 (Terminals 1 And 2)
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Fig 13: Identifying Audio Amplifier Connector C-11 (Terminals 13 And 14)
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

NOTE: Also check intermediate connector C-29 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector C-29 is damaged, repair or replace the connector as described in HARNESS CONNECTOR INSPECTION .

Fig 14: Identifying Intermediate Connector C-29
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Q: Is the wiring harness between front door speaker (LH) connector E-16 (terminals 1 and 2) and audio amplifier connector C-11 (terminals 13 and 14) in good condition?
1. YES : Replace the audio amplifier. The front door speaker (LH) should sound.
2. 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). Refer to SPEAKER .
2. Check that the front door speaker (RH) generates noise when a five-volt voltage is applied on the front door speaker (RH) terminal.
  
  Fig 15: Checking Front Door Speaker (RH)
  Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Q: Is the front door speaker (RH) generating noise?
1. YES : Go to Step 12.
2. NO : Replace the front door speaker (RH). The front door speaker (RH) should sound.
STEP 12. Check front door speaker (RH) connector E-08 and audio amplifier connector C-11 for loose, corroded or damaged terminals, or terminals pushed back in the connector.

Fig 16: Identifying Audio Amplifier Connector C-11
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Fig 17: Identifying Front Door Speaker (RH) Connector E-08
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Q: Are harness connectors E-08 and C-11 in good condition?
1. YES : Go to Step 13.
2. NO : Repair or replace the damaged 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-08 (terminals 1 and 2) and audio amplifier connector C-11 (terminals 5 and 15).

Fig 18: Identifying Audio Amplifier Connector C-11 (Terminals 5 And 15)
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Fig 19: Identifying Front Door Speaker (RH) Connector E-08 (Terminals 1 And 2)
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

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 connector as described in HARNESS CONNECTOR INSPECTION .

Fig 20: Identifying Intermediate Connector C-13
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Q: Is the wiring harness between front door speaker (RH) connector E-08 (terminals 1 and 2) and audio amplifier connector C-11 (terminals 5 and 15) in good condition?
1. YES : Replace the audio amplifier. The front door speaker (RH) should sound.
2. NO : Repair the wiring harness. The front door speaker (RH) should sound.
STEP 14. Check the rear door speaker (LH).
1. Remove the rear door speaker (LH). Refer to SPEAKER .
2. Check that the rear door speaker (LH) generates noise when a five-volt voltage is applied on the rear door speaker (LH) terminal.
  
  Fig 21: Checking Rear Door Speaker (LH)
  Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Q: Is the rear door speaker (LH) generating noise?
1. YES : Go to Step 15.
2. NO : Replace the rear door speaker (LH). The rear door speaker (LH) should sound.
STEP 15. Check rear door speaker (LH) connector E-22 and audio amplifier connector C-11 for loose, corroded or damaged terminals, or terminals pushed back in the connector.
Q: Are harness connectors E-22 and C-11 in good condition?
1. YES : Go to Step 16.
2. NO : Repair or replace the damaged component(s). Refer to HARNESS CONNECTOR INSPECTION . The rear door speaker (LH) should sound.
  
  Fig 22: Identifying Audio Amplifier Connector C-11
  Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  
  Fig 23: Identifying Rear Door Speaker (LH) Connector E-22
  Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
STEP 16. Check the wiring harness between rear door speaker (LH) connector E-22 (terminals 1 and 2) and audio amplifier connector C-11 (terminals 2 and 10).

Fig 24: Identifying Audio Amplifier Connector C-11 (Terminals 2 And 10)
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Fig 25: Identifying Rear Door Speaker (LH) Connector E-22 (Terminals 1 And 2)
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

NOTE: Also check intermediate connector C-30 and D-22 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector C-30 or D-22 is damaged, repair or replace the connectors as described in HARNESS CONNECTOR INSPECTION .

Fig 26: Identifying Intermediate Connector C-30
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Fig 27: Identifying Intermediate Connector D-22
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Q: Is the wiring harness between the rear door speaker (LH) connector E-22 (terminals 1 and 2) and audio amplifier connector C-11 (terminals 2 and 10) in good condition?
1. YES : Replace the audio amplifier. The rear door speaker (LH) should sound.
2. NO : Repair the wiring harness. The rear door speaker (LH) should sound.
STEP 17. Check the rear door speaker (RH).
1. Remove the rear door speaker (RH). Refer to SPEAKER .
2. Check that the rear door speaker (RH) generates noise when a five-volt voltage is applied on the rear door speaker (RH) terminal.
  
  Fig 28: Checking Rear Door Speaker (RH)
  Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Q: Is the rear door speaker (RH) generating noise?
1. YES : Go to Step 18.
2. NO : Replace the rear door speaker (RH). The rear door speaker (RH) should sound.
STEP 18. Check rear door speaker (RH) connector E-05 and audio amplifier connector C-11 for loose, corroded or damaged terminals, or terminals pushed back in the connector.

Fig 29: Identifying Audio Amplifier Connector C-11
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Fig 30: Identifying Rear Door Speaker (RH) Connector E-05
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Q: Are harness connectors E-05 and C-11 in good condition?
1. YES : Go to Step 19.
2. NO : Repair or replace the damaged component(s). Refer to HARNESS CONNECTOR INSPECTION . The rear door speaker (RH) should sound.
STEP 19. Check the wiring harness between rear door speaker (RH) connector E-05 (terminals 1 and 2) and audio amplifier connector C-11 (terminals 1 and 9).

Fig 31: Identifying Audio Amplifier Connector C-11 (Terminals 1 And 9)
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Fig 32: Identifying Rear Door Speaker (RH) Connector E-05 (Terminals 1 And 2)
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

NOTE: Also check intermediate connector C-112 and D-34 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector C-112 or D-34 is damaged, repair or replace the connectors as described in HARNESS CONNECTOR INSPECTION .

Fig 33: Identifying Intermediate Connector C-112
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Fig 34: Identifying Intermediate Connector D-34
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Q: Is the wiring harness between rear door speaker (RH) connector E-05 (terminals 1 and 2) and audio amplifier connector C-11 (terminals 1 and 9) in good condition?
1. YES : Replace the audio amplifier. The rear door speaker (RH) should sound.
2. NO : Repair the wiring harness. The rear door speaker (RH) should sound.
STEP 20. Check the woofer.
1. Remove the woofer. Refer to SPEAKER .
2. Check that the woofer generates noise when a five-volt voltage is applied on the woofer terminal.
  
  Fig 35: Checking Woofer
  Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Q: Is the woofer generating noise?
1. YES : Go to Step 21.
2. NO : Replace the woofer. The woofer should sound.
STEP 21. Check woofer connector D-08 and audio amplifier connector C-11 for loose, corroded or damaged terminals, or terminals pushed back in the connector.

Fig 36: Identifying Audio Amplifier Connector C-11
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Fig 37: Identifying Woofer Connector D-08
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Q: Are harness connectors D-08 and C-11 in good condition?
1. YES : Go to Step 22.
2. NO : Repair or replace the damaged component(s). Refer to HARNESS CONNECTOR INSPECTION . The woofer should sound.
STEP 22. Check the wiring harness between woofer connector D-08 (terminals 1 and 2) and audio amplifier connector C-11 (terminals 8 and 18).

Fig 38: Identifying Audio Amplifier Connector C-11 (Terminals 8 And 18)
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Fig 39: Identifying Woofer Connector D-08 (Terminals 1 And 2)
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

NOTE: Also check intermediate connector C-112 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector C-112 is damaged, repair or replace the connector as described in HARNESS CONNECTOR INSPECTION .

Fig 40: Identifying Intermediate Connector C-112
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Q: Is the wiring harness between woofer connector D-08 (terminals 1 and 2) and audio amplifier connector C-11 (terminals 8 and 18) in good condition?
1. YES : Replace the audio amplifier. The woofer should sound.
2. NO : Repair the wiring harness. The woofer should sound.