2004 MITSUBISHI ENDEAVOR Speakers

11 (terminal 7 and 17) and ground
.
Q: Is the wiring harness between audio amplifier connector C-11
(terminal 7 and 17) and ground in good condition?
YES: There is no action to be taken.
NO: Repair the wiring harness. The speakers should sound.
Fig. 56: Identifying Connector C-11
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
STEP 7. Check radio, CD player and CD changer connector C-113 and
aud
io amplifi
er conn
ecto
r C-12 f
or loose,
corroded
or da
maged
termin
als,

2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Radio With Tape Player & Cd Player - Endeavor

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
Q: Do the speakers sound normally?
YES: The procedure is complete.
NO: Repair or replace the audio amplifier.
INSPECTION PROCEDURE 6: No Sound from One Speaker. < Vehicles with Six Speakers >.
2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Radio With Tape Player & Cd Player - Endeavor

Fig. 59: Speaker System Circuit Diagra
m
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Fig. 60: Identifying Connectors

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
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.
2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Radio With Tape Player & Cd Player - Endeavor

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 six
speakers.
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 door speaker (LH) : Go to Step 14 .
Rear door speaker (RH) : Go to Step 17 .
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
a
pplied on the tweeter
(LH
) terminal.

2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Radio With Tape Player & Cd Player - Endeavor

Fig. 93: Identifying 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 radio and CD player connector C-105 (terminals
11 and 17) in good condition?
YES: Replace the radio and CD player. The rear door speaker (RH)
should sound.
NO: Repair the wiring harness. The rear door speaker (RH) should sound.
INSPECTION PROCEDURE 7: No Sound from One Speaker. < vehicles with seven speakers >.
2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Radio With Tape Player & Cd Player - Endeavor

Malfunction of the speaker Damaged wiring harness or connector Malfunction of the audio amplifier
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?
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 door speaker (LH) : Go to Step 14 .
Rear door speaker (RH) : Go to Step 17 .
Woofer : Go to Step 20 .
STEP 2. Check the tweeter (LH).
1. Remove the tweeter
(LH
). Refer to SPEAKER
.

2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Radio With Tape Player & Cd Player - Endeavor

Q: Is there more noise on the customers radio?
YES: Check all power and ground connections. If all connections are in
good condition, consult the radio manufacturers service center.
NO: The observed noise is normal.
INSPECTION PROCEDURE 13: Noise is Detected with Engine Running. DIAGNOSIS
CAUTION:
Never connect a noise filter to the high tension
cable (spark plug wire). Spark plug wires
incorporate resistors which have the effect of
suppressing noise. If a spark plug wire is found
to be causing noise, it must be replaced. Confirm that the noise is not from an external
source. Noise prevention should be performed by
suppressing strong sources of noise first.
NOTE: Voltage surges can be induced in the electrical system by
the collapse of a field (i.e. When power is removed from the
coil in an A/C compressor clutch). This induced voltage
surge will radiate a Radio Frequency (RF) signal that is
picked up by the audio unit. In the case of the compressor
clutch a "pop" will be heard through the speakers. The
capacitor, installed on this vehicle, will store the excess
voltage and prevent the production of RF noise. This is
because the capacitor will charge and discharge as the
voltage fluctuates. This has the effect of "attracting" noise
and bleeding it to ground without interfering with the
normal flow of current through the system.

2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Radio With Tape Player & Cd Player - Endeavor

reception is resolved.
INSPECTION PROCEDURE 19: Distortion on AM and/or FM. DIAGNOSIS
STEP 1. Check the level of distortion.
Q: How much distortion is there?
Occasional distortion : Go to Step 2.
Constant distortion : Go to Step 3 .
STEP 2. Check the location of the distortion.
Q: Is there distortion when the vehicle is near the radio station?
YES: The antenna is receiving too strong a signal.
NO: Go to Step 3.
STEP 3. Check the wires at each speaker.
Q: Are the speaker wires contacting the paper speaker cone?
YES: Move the speaker wires away from the paper speaker cone. The
speaker should now be free of distortion.
NO: Go to Step 4.
STEP 4. Remove the speakers, and check the paper cone for foreign
material or damage.
Q: Is there foreign material or damage on the paper cone of the speaker?
YES: Repair or replace the speakers. The speaker should now be free of
distortion.
NO: Go to Step 5.
STEP 5. Check for distortion with the speaker installed.
Q: Does a distortion occur?

2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Radio With Tape Player & Cd Player - Endeavor