Mitsubishi Montero Sport (2004+). Manual — part 549

RADIO AND TAPE PLAYER

TSB Revision

CHASSIS ELECTRICAL

54-183

.

CIRCUIT OPERATION
Power is supplied to the radio and CD player when
the ignition switch is at the "ACC" or "ON" position.

.

TECHNICAL DESCRIPTION (COMMENT)
The cause is probably a faulty radio and CD player
power supply circuit system.

.

TROUBLESHOOTING HINTS

• Damaged harness wire or connector

• Malfunction of the radio and CD player

.

AC003431

CONNECTOR: A-54X

A-54X

AC

AC003488

CONNECTORS: C-41, C-62

C-41

C-62

AB

AC003461AC

CONNECTOR: D-06

JUNCTION BLOCK (FRONT)

D-06

AC003457AE

CONNECTOR: D-08

JUNCTION BLOCK (REAR)

D-08

RADIO AND TAPE PLAYER

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CHASSIS ELECTRICAL

54-184

DIAGNOSIS

Required Special Tool:

• MB991223: Harness set

STEP 1. Check the radio and CD player power supply
circuit by backprobing.

(1) Do not disconnect radio and CD player connector C-62.
(2) Turn the ignition switch to the "ACC" position.

(3) Measure the voltage between terminal 10 and ground by

backprobing.

• The measured value should be approximately 12 volts

(battery positive voltage).

Q: Does the measured voltage correspond with this range?

YES : Go to Step 4.
NO : Go to Step 2.

STEP 2. Check radio and CD player connector C-62 for
damage.

Q: Is radio and CD player 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

. If the power switch is

turned on, the radio and CD player should operate
normally.

AC200783

1

7

2

8

10

11

5

13

6

14

12

4

9

3

CONNECTOR: C-62

COMPONENT SIDE

AB

C-62

AC002810 AB

CONNECTOR C-62
(HARNESS 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

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CHASSIS ELECTRICAL

54-185

STEP 3. Check the harness wires between radio and CD
player connector C-62 (terminal No.10) and ignition switch
(ACC).

AC003488

22

2021

10

9

8

1718

6 7

19

1415

4 5

1112

1 2 3

13

16

1

7

3 2

8

10

4

1211

5

13

6

14

9

CONNECTORS: C-41, C-62

C-41

C-62

AB

C-62

HARNESS SIDE

C-41

RADIO AND TAPE PLAYER

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CHASSIS ELECTRICAL

54-186

NOTE: After inspecting intermediate connector C-41, IOD or
storage connector A-54X and junction block connectors D-06
and D-08, inspect the wire. If intermediate connector C-41, IOD
or storage connector A-54X and junction block connectors
D-06 and D-08 are damaged, repair or replace them. Refer to
GROUP 00E, Harness Connector Inspection

P.00E-2

.

Q: Are the harness wires between radio and CD player

connector C-62 (terminal No.10) and ignition switch
(ACC) in good condition?
YES : There is no action to be taken.
NO : Repair them. If the power switch is turned on, the

radio and CD player should operate normally.

STEP 4. Check that the radio and CD player are installed
correctly.
NOTE: The radio and CD player are grounded to the instru-
ment panel center reinforcement directly.
Q: Are the radio and CD player installed correctly?

YES : Go to Step 5.
NO : Install properly. If the power switch is turned on, the

radio and CD player should operate normally.

STEP 5. Recheck for malfunction.
Q: Is a malfunction eliminated?

YES : The procedure is complete. (If no malfunctions are

found in all steps, an intermittent malfunction is
suspected. Refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Point

− How to

Cope with Intermittent Malfunction

P.00-7

.)

NO : Go to Step 1.

AC200772

1
8

3

4

5

7 6

10

15

16

14

12

13

11

9

2

COMPONENT SIDE

CONNECTOR: D-06

D-06

JUNCTION BLOCK
(FRONT)

AB

AC200773

M

3

1

4

2

CONNECTOR: D-08

D-08

COMPONENT SIDE

AB

AC200774

2

1

CONNECTOR: A-54X

AB

A-54X