Radio MITSUBISHI ENDEAVOR 2004 Service Repair Manual

YES: Install the speaker securely. The speaker should now be free of
distortion.
NO: Repair or replace the radio and CD player. The speaker should now
be free of distortion.
INSPECTION PROCEDURE 20: Distortion on FM Only. DIAGNOSIS
STEP 1. Check that the distortion is present when the radio is tuned to
another station.
Q: Does the distortion persist when the radio is tuned to another station?
YES: Go to Step 2.
NO: The signal from that station is too weak.
STEP 2. Relocate the reception area and check the radio.
Q: When relocating the reception area does the distortion increase or
decrease?
YES: The cause may be multipath or fading noise. Multipath noise is the
echo that occurs when the broadcast signal is reflected by a large
obstruction and enters the receiver with a slight time delay relative to the
direct signal (repetitious buzzing). A fading or buzzing noise may occur
when the broadcast beam is disrupted by obstructing objects and the signal
strength fluctuates within a narrow range.
NO: Replace the radio and CD player. Check that a distortion is resolved.
INSPECTION PROCEDURE 21: Auto Select Function Inoperative, too Few Automatic Stations are Selected. DIAGNOSIS
STEP 1. Check the state of the antenna.
Q: Is the mast antenna assembled?
YES: Go to Step 2.

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

NO: Assemble the mast antenna. The auto-select function should operate
normally.
STEP 2. Check the number of radio stations.
Q: Are there sufficient numbers of radio stations within the area?
YES: Go to Step 3.
NO: Go to Step 4 .
STEP 3. Check the distance from the transmission antenna.
Q: Is there a transmission antenna within a range of 2 miles?
YES: Go to Step 5 .
NO: Go to Step 4.
STEP 4. The check if there are not that many radio stations and when
there is no transmission antenna in the vicinity.
Execute automatic selection and check to see that the strongest radio frequency
is receivable within the area.
Q: Is reception of the strongest radio frequency possible within the area?
YES: There is no action to be taken.
NO: Go to Step 5.
STEP 5. Check to see if inspections are taking place is an area exposed to
special electric fields.
Q: Are inspections taking place under special electric field conditions
(underground garage, inside a building, etc.)?
YES: Go to Step 6.
NO: Go to Step 7 .
STEP 6. Relocate and check.
Automaticall
y receive in a
good rece
ption area tha
t is not ex
posed to s
pecial

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

electric fields.
Q: Is reception of the strongest radio frequency possible within the area?
YES: There is no action to be taken.
NO: Go to Step 7.
STEP 7. Check the connection of the antenna feeder cable and radio and
CD player.
Q: Is the antenna feeder cable thoroughly connected to the radio and CD
player?
YES: Repair or replace the radio and CD player. The auto-select function
should operate normally.
NO: Thoroughly connect the antenna feeder cable and the radio and CD
player. The auto-select function should operate normally.
INSPECTION PROCEDURE 22: Preset Stations are Erased
.

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

Fig. 144: Identifying Memory Backup Power Circuit Diagram

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

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

Fig. 145: Identifying Connectors

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
CIRCUIT OPERATION Power is continuously supplied to the radio and CD player. TECHNICAL DESCRIPTION (COMMENT) The cause is probably a faulty radio and CD player memory backup power supply
system circuit. TROUBLESHOOTING HINTS
Damaged wiring harness or connector Malfunction of the radio and CD player
DIAGNOSIS Required Special Tool:
MB991223: Harness set
STEP 1. Measure at radio and CD player or radio, CD player and CD
changer connector C-105 in order to check the power supply circuit to the
radio and CD player (through the battery).
1. Disconnect radio and CD player or radio, CD player and CD changer
connector
C-105, and measure at the wirin
g harness side.

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

Fig. 146: Identifying Connector C
-105

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
2. Measure the voltage between terminal number 21 and ground.
The voltage should measure approximately 12 volts (battery positive
voltage).

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

Fig. 147: Measuring Voltage Between Terminal Number 21 And Ground

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Q: Is the measured voltage approximately 12 volts (battery positive
voltage)?
YES: Either repair or replace the radio and CD player or radio, CD player
and CD changer. Check that a memory is retained.
NO: Go to Step 2.
STEP 2. Check radio and CD player or radio, CD player and CD changer
connector C-105 for loose, corroded or damaged terminals, or terminals
pushed back in the connector.

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

Fig. 148: Identifying Connector C
-105

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Q: Is radio and CD player or radio, CD player and CD changer connector
C-105 in good condition?
YES: Go to Step 3.
NO: Repair or replace the damaged component(s). Check that a memory
is retained.
STEP 3. Check the wiring harness between radio and CD player or radio,
CD
player and CD chan
ger connector C-105 (terminal 21) and the batter
y.

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

Fig. 149: Identifying Connector C
-105

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
NOTE: Also check intermediate connector C-31 and joint
connector(1) C-04 for loose, corroded, or damaged
terminals, or terminals pushed back in the connector. If
intermediate connectors C-31 or joint connector (1) C-
04 is damaged, repair or replace the connector.

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

Fig. 150: Identifying Connector C
-04, C
-31
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

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