Mitsubishi 380. Manual - part 912

RADIO WITH CD PLAYER

CHASSIS ELECTRICAL

54A-182

STEP 7. Check the wiring harness between radio and CD 
player or radio, CD player and CD changer connector 
C-111 (terminal 10) and ignition switch (ACC).

NOTE: Also check intermediate connector C-29 for loose, cor-
roded, or damaged terminals, or terminals pushed back in the 
connector. If intermediate connector C-29 is damaged, repair or 
replace the connector as described in GROUP 00E, Harness 
Connector Inspection 

P.00E-2

. 

Q: Is the wiring harness between radio and CD player or 

radio, CD player and CD changer connector C-111 
(terminal 10) and ignition switch (ACC) in good 
condition?
YES : There is no action to be taken.
NO :  Repair the wiring harness. If the power switch is 

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

STEP 8. Check the installation condition of the radio and 
CD player or radio, CD player and CD changer.

NOTE: The radio and CD player or radio, CD player and CD 
changer are grounded to the deck crossmember directly.

Q: Are the radio and CD player or radio, CD player and CD 

changer installed correctly?
YES : Replace the radio and CD player or radio, CD player 

and CD changer. If the power switch is turned on, the 
radio and CD player or radio, CD player and CD 
changer should operate normally.

NO :  Install the radio and CD player or radio, CD player 

and CD changer properly. If the power switch is 
turned on, the radio and CD player or radio, CD player 
and CD changer should operate normally.

54DB041A

HARNESS SIDE

3

9

4

12

14

6

13

5

1110

8

2

7

1

CONNECTOR: C-111

52DB014A

CONNECTOR: C-29

RADIO WITH CD PLAYER

CHASSIS ELECTRICAL

54A-183

INSPECTION PROCEDURE 2: When Remote Controlled Radio Power Switch is Turned "ON," no 
Power is Available. But Radio, CD Player and CD Changer Power Switch is Available.

.

CIRCUIT OPERATION

• If the remote controlled radio switch is operated, 

the output voltage will change. The radio, CD 
player and CD changer operates according to the 
change on the voltage. You can switch on the 
audio unit, control the mode and volume by the 
remote controlled radio switch (RH). You can 
select a CD track and pre-set radio station, and 
tune it by the remote controlled radio switch (LH). 

NOTE: You can switch on the audio unit by the 
remote controlled switch, but can not switch it off.

.

TECHNICAL DESCRIPTION (COMMENT)

If the system does not recognise the remote con-
trolled radio switches (RH), the clock spring or the 
radio, CD player and CD changer may be defective.

.

TROUBLESHOOTING HINTS

• Refer to circuit diagrams GROUP-

90

• Refer to configuration diagrams GROUP-

80

• Malfunction of the remote controlled radio switch 

(RH)

• Malfunction of the radio, CD player and CD 

changer

• Malfunction of the clock spring

• Damaged wiring harness or connectors

16DB530A

HARNESS SIDE

CONNECTOR: C-117

21

22

23

24

25

26

27

28

29

30

16DB531A

C-301 (B)

C-303 (GR)

C-306

CONNECTORS: C-301, C-303, C-306, C-311

C-311 (B)

RADIO WITH CD PLAYER

CHASSIS ELECTRICAL

54A-184

DIAGNOSIS 

Required Special Tool:

• MB991223: Harness set

STEP 1. Measure the voltage at remote controlled radio 
switch power supply circuit at the clock spring connector 
C-306.
(1) Disconnect the clock spring connector C-306.
(2) Turn the ignition switch to "ON" position.

(3) Measure the voltage between clock spring connector C-306 

(radio, CD player and CD changer side) terminal 2 and 
ground.

• The measured value should be approximately 5 volts.

Q: Is the measured voltage approximately 5 volts?

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

16DB532A

CONNECTOR: C-306

AC209365HW

CONNECTOR C-306

RADIO WITH CD PLAYER

CHASSIS ELECTRICAL

54A-185

STEP 2. Check radio, CD player and CD changer connector 
C-117 and clock spring connector C-306 for loose, 
corroded or damaged terminals, or terminals pushed back 
in the connector.
Q: Are radio, CD player and CD changer connector C-117 

and clock spring connector C-306 in good condition?
YES : Go to Step 3.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

. The remote controlled radio switch should 

work normally.

STEP 3. Check the wiring harness between radio, CD 
player and CD changer connector C-117 (terminal 30) and 
clock spring connector C-306 (terminal 2).
Q: Is the wiring harness between radio, CD player and CD 

changer connector C-117 (terminal 30) and clock spring 
connector C-306 (terminal 2) in good condition?
YES : Go to Step 4.
NO :  Repair the wiring harness. The remote controlled 

radio switch should work normally.

16DB530A

HARNESS SIDE

CONNECTOR: C-117

21

22

23

24

25

26

27

28

29

30

16DB532A

CONNECTOR: C-306

16DB530A

HARNESS SIDE

CONNECTOR: C-117

21

22

23

24

25

26

27

28

29

30

16DB532A

CONNECTOR: C-306