Mitsubishi Montero Sport (2004+). Manual — part 561

RADIO AND TAPE PLAYER

TSB Revision

CHASSIS ELECTRICAL

54-231

INSPECTION PROCEDURE 16: Distortion on FM Only.

.

DIAGNOSIS

STEP 1. Check that the distortion persists when
the radio is turned to another station.

Q: Does the distortion persist when the radio is

turned to another station?

YES :

Go to Step 2.

NO :

The signal from that station is too weak.

STEP 2. Check that the distortion increases or
decreases when the vehicle is moved.

Q: Does distortion increase or decrease when the

vehicle is moved?

YES :

The cause may be multipath noise.

NO :

Repair or replace the radio. Check that a
distortion is resolved.

INSPECTION PROCEDURE 17: Using the Auto Select Function, too Few Automatic Stations are
Selected.

.

DIAGNOSIS

STEP 1. Consider the number of radio stations.
Check that there are enough in the area.

Q: Consider the number of radio stations. Are there

enough in the area?

YES :

Go to Step 2.

NO :

Confirm automatic selection selects the
strongest signals in the area. If not, go to
Step 3.

STEP 2. Consider the distance to the radio
stations. Check that the transmitting antennas
are within 2 miles.

Q: Consider the distance to the radio stations. Are the

transmitting antennas within 2 miles?

YES :

Go to Step 3.

NO :

Confirm automatic selection selects the
strongest signals in the area. If not, go to
Step 4.

STEP 3. Make sure that the check is being
conducted under special field conditions.

Q: Is the check being conducted under special

electrical field conditions (such as in an
underground garage or inside a building)?

YES :

Go to Step 4.

NO :

Go to Step 5.

STEP 4. Check that proper performance is
obtained when the vehicle is moved.

Q: Is proper performance obtained when the vehicle is

moved?

YES :

The auto-select function should operate

normally.

NO :

Go to Step 5.

STEP 5. Check that the antenna plug is
connected to the radio properly.

Q: Is the antenna plug connected to the radio

properly?

YES :

Go to Step 6.

NO :

The antenna plug is reconnected to the
radio properly. The auto-select function
should operate normally.

STEP 6. Check that the problem disappears when
another radio is used.

Q: Does the problem disappear if another radio is

used?

YES :

Replace the radio. The auto-select function

should operate normally.

No :

Move the vehicle in an area with good radio
signals. Then go to Step 1 .

RADIO AND TAPE PLAYER

TSB Revision

CHASSIS ELECTRICAL

54-232

INSPECTION PROCEDURE 18: Preset Station are Erased.

FUSIBLE
LINK

8

RELAY
BOX

JUNCTION
BLOCK

RADIO, TAPE PLAYER
AND CD PLAYER

IOD OR
STORAGE
CONNECTOR

Memory Backup Power Supply Circuit

AC003431

CONNECTOR: A-54X

A-54X

AC

AC003489

AC

CONNECTOR: C-62

C-62

AC003460 AB

CONNECTORS: D-01, D-06

D-01

D-06

JUNCTION BLOCK (FRONT)

RADIO AND TAPE PLAYER

TSB Revision

CHASSIS ELECTRICAL

54-233

.

CIRCUIT OPERATION
The power is constantly supplied to the radio, tape
player and CD player.

.

TECHNICAL DESCRIPTION (COMMENT)
The cause is probably a faulty radio, tape player and
CD player memory backup power supply circuit sys-
tem.

.

TROUBLESHOOTING HINTS

• Damaged harness wire or connector

• Malfunction of the radio, tape player and CD

player

.

DIAGNOSIS

Required Special Tool:

• MB991223: Harness set

STEP 1. Check the radio, tape player and CD player
memory backup power supply circuit.

(1) Do not disconnect radio, tape player and CD player C-62.

(2) Measure the voltage between terminal number 11 and

ground.

• The measured value should be approximately 12 volts

(battery positive voltage).

Q: Does the measured voltage correspond with this range?

YES : Repair or replace the radio, tape player and CD

player. Check that a memory is retained.

NO : Go to Step 2.

STEP 2. Check harness connector C-62 at the radio, tape
player and CD player for loose, corroded or damaged
terminals, or terminals pushed back in the connector.

Q: Is harness connector C-62 in good condition?

YES : Go to Step 3.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

. Check that a memory

is retained.

AC200783

1

7

2

8

10

11

5

13

6

14

12

4

9

3

CONNECTOR: C-62

COMPONENT SIDE

AB

C-62

AC002811 AC

C-62 HARNESS CONNECTOR:
COMPONENT SIDE

AC200783

1

7

2

8

10

11

5

13

6

14

12

4

9

3

CONNECTOR: C-62

COMPONENT SIDE

AB

C-62

RADIO AND TAPE PLAYER

TSB Revision

CHASSIS ELECTRICAL

54-234

STEP 3. Check the harness wires between radio, tape
player, CD player connector C-62 (terminal No.11) and
fusible link number 6.

NOTE: After inspecting junction block D-01 and D-06, IOD or
storage connector A-54X, inspect the wire. If junction block
D-01 and D-06, IOD or storage connector A-54X are damaged,
repair or replace them. Refer to GROUP 00E, Harness Con-
nector Inspection

P.00E-2

.

Q: Are the harness wires between the connector C-62

(terminal No.11) and fusible link number 6 in good
condition?
YES : Go to Step 4.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

.

AC200783

1

7

2

8

10

11

5

13

6

14

12

4

9

3

CONNECTOR: C-62

COMPONENT SIDE

AB

C-62

AC201082

1 2

AB

A-54X

RELAY BOX IN ENGINE COMPARTMENT

CONNECTOR: A-54X

AC201728

2

3

8 7

9

10

1
6

5

12

4

11

1
8

3

4

5

7 6

10

15

16

14

12

13

11

9

2

JUNCTION BLOCK (FRONT)

CONNECTORS: D-01, D-06

D-01 COMPONENT SIDE

D-06 COMPONENT SIDE

AB

D-01

D-06