INSPECTION PROCEDURE 20: Only the front left speaker does not sound (including the audio sound): Diagnosis

STEP 1. Check the front door speaker (LH).
1. Remove the front door speaker (LH). Refer to < TWEETER/REAR 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.
Q: Is the front door speaker (LH) generating noise?

YES: Go to Step 2.

NO: Replace the front door speaker (LH). The front door speaker (LH) should sound.

Fig 1: Checking Speaker
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
STEP 2. Check front door speaker (LH) connector E-10 and multi-center display connector C-33 for loose, corroded or damaged terminals, or terminals pushed back in the connector.
Q: Are front door speaker (LH) connector E-10 and multi-center display connector C-33 in good condition?

YES: Go to Step 3.

NO: Repair or replace the component(s). Refer to HARNESS CONNECTOR INSPECTION . The front door speaker (LH) should sound.

Fig 2: Locating Multi-Center Display Connector C-33
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Fig 3: Locating Front Door Speaker (LH) Connector E-10
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
STEP 3. Check the wiring harness between front door speaker (LH) connector E-10 (terminals 1 and 2) and multi-center display connector C-33 (terminals 45 and 42).

Fig 4: Locating Multi-Center Display Connector C-33
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Fig 5: Locating Front Door Speaker (LH) Connector E-10
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

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 multi-center display connector C-33 (terminals 13 and 14) in good condition?

YES: Go to Step 4.

NO: Repair the wiring harness. The front door speaker (LH) should sound.

Fig 6: Checking Connector C-26 Terminals
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
STEP 4. Check audio amplifier connector C-113 for loose, corroded or damaged terminals, or terminals pushed back in the connector.
Q: Is harness connectors C-113 in good condition?

YES: Go to Step 5.

NO: Repair or replace the component(s). Refer to HARNESS CONNECTOR INSPECTION . The front door speaker (LH) should sound.

Fig 7: Locating Audio Amplifier Connector C-113
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
STEP 5. Check the wiring harness between multi-center display connector C-33 (terminals 44 and 43) and audio amplifier connector C-113 (terminals 8 and 18).
Q: Is the wiring harness between multi-center display connector C-33 (terminals 44 and 43) and audio amplifier connector C-113 (terminals 8 and 18) in good condition?

YES: Go to Step 6.

NO: Repair the wiring harness. The front door speaker (LH) should sound.

Fig 8: Locating Multi-Center Display Connector C-33 And Audio Amplifier Connector C-113
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
STEP 6. Temporarily replace the multi-center display, and check that the sound is output from the front left speaker.
Q: When the multi-center display is temporarily replaced, is the sound output from the front left speaker?

YES: Replace the multi-center display. The front door speaker (LH) should sound.

NO: Replace the audio amplifier. The front door speaker (LH) should sound.