2004 MITSUBISHI ENDEAVOR service

mounted
.
Q: Is the antenna in good condition and is it properly mounted?
YES: Consult the radio manufacturer's service center.
NO: Either repair or replace the antenna assembly. Check to see that the
noise is gone.
INSPECTION PROCEDURE 12: Excessive Noise on AM and FM. DIAGNOSIS Radio reception can be affected by Radio Frequency (RF) emissions from a variety
of sources. The disturbance is even greater if the station is weak or poorly tuned.
FM reception is not as sensitive to disturbances as AM. AM reception is sensitive to
electrical disturbances such as power lines, lightening and other types of similar
electrical phenomena.
STEP 1. Check if the customer heard the noise under any of the following
conditions.
A motorcycle was passing. Lighting was flashing. Passed beneath a power line. Passed beneath a telephone line. Passed by a signal generator. Passed by any other sources of electrical noise. Passed under a bridge or through a tunnel.
Q: Did the noise occur during any of the circumstances listed above?
YES: The observed noise is normal.
NO: Go to Step 2.
STEP 2. Compare the customers radio to another identical model.
Operate the radio in a vehicle with a known good audio system of the same
t
ype as the customer's.

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

Fig. 141: Identifying Noise Capacitor (2 Of 2)

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
INSPECTION PROCEDURE 14: Noise Appears During Vibration or Shocks. DIAGNOSIS
STEP 1. Check the fit of the mast antenna.
Q: Is the mast antenna base fitted securely?
YES: Go to Step 2.
NO: Install the mast antenna, and tighten the mounting nut (Refer to
INSTALLATION SERVICE POINTS
). Check that there is no noise.
STEP 2. Check the fit of antenna feeder cable.
Q: Is the antenna feeder cable fitted securely?

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

STEP 6. Check by replacing radio and CD player.
Q: Do the other radio and CD player work normally?
YES: Either repair or replace the original radio and CD player. Check that
there is no noise.
NO: Either repair or replace the antenna assembly. Check that there is no
noise.
INSPECTION PROCEDURE 16: Constant Noise. DIAGNOSIS Use the Symptom Chart to diagnose the possible cause(s) of the noise. Noise is
often created by the following factors:
Traveling conditions of the vehicle Terrain of area traveled through Surrounding buildings Signal conditions Time period
If there are still problems with noise, even after performing inspection procedures 8
to 15, obtain information on the factors listed above. Determine whether the
problem occurs on AM or FM, the station names, frequencies, etc. and contact the
radio manufacturer's service center.
INSPECTION PROCEDURE 17: No Reception (AM). DIAGNOSIS
STEP 1. Check the state of the antenna.
Q: Is the mast antenna assembled?
YES: Go to Step 2.
NO: Assemble the mast antenna. The radio should sound normally.
STEP 2. Check to see if inspections are taking place is an area exposed to

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

NO: Go to Step 4.
STEP 4. Check by tapping the radio and CD player.
Q: Does the sound jump when tapping the radio and CD player?
YES: Securely mount the audio. Check that a CD sound skip is resolved.
NO: Either replace the audio system or take the following measures if a
servicing shop is nearby.
1. Investigate in detail the conditions when the sound jumps while
driving the car.
2. Describe these conditions to the service shop for consultation.
3. Either replace the audio according to the instructions of the service
shop.
Check that a CD sound skip is resolved.
INSPECTION PROCEDURE 26: Sound Quality is Poor. DIAGNOSIS Check to see that the CD can be played normally and that it is free of any
scratches or soiling.
Replace with better sound quality CD.
Q: Is the sound quality better replacing the CD with a clean CD without any
scratches that can be played?
YES: The CD is defective. The sound quality should return to normal.
NO: Replace the audio. The sound quality should return to normal. INSPECTION PROCEDURE 27: CD can not be Ejected. DIAGNOSIS
NOTE: Check by using a known-good CD which is free from
scratches, dirt or any other abnormality.

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

Check the power of ignition switch "ACC"
.
Q: Does the radio and CD player power turn ON when the ignition switch is in
the "ACC" or "ON" position?
YES: Either replace the audio. Check that a CD can be ejected normally.
NO: Check the memory backup power supply circuit. Refer to INSPECTION
PROCEDURE 1
.
ON-VEHICLE SERVICE SPEAKER TEST < VEHICLES WITH SEVEN SPEAKERS > Operate the radio panel switches to test the speakers. The middle grade type multi-
center display shows which speaker is sounding. Enter the speaker test mode
according to the following steps:
1. Turn the ignition switch to "ACC" position and switch off the audio
2. Press the following buttons in that order within 60 seconds from step (1).
1. Memory select "1" button
2. "SEEK" switch (down side)
3. "SEEK" switch (up side)
4. Memor
y select "6" button

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

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
REMOTE CONTROLLED RADIO SWITCH REMOVAL AND INSTALLATION Fig. 155: Removing/Installing Remote Controlled Radio Switch

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
REMOVAL SERVICE POINT << A >> REMOTE CONTROLLED RADIO SWITCH REMOVAL Use a tool to hold the tabs on the remote controlled radio switch, and push out the
switch b
y your fin
ger.
WARNING:
Before removing the air bag module, refer to AIR BAG RESTRAINT SYSTEMS
).
When removing and installing the steering
wheel, do not let it bump against the air bag
module.

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

Fig. 162: Removing/Installing Amplifier

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
REMOVAL SERVICE POINTS << A >> AMPLIFIER REMOVAL Move the audio amplifier wiring harness to one side, and then maneuver out the
audio amplifier.
2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Radio With Tape Player & Cd Player - Endeavor