Mitsubishi 380. Manual — part 915
RADIO WITH CD PLAYER
CHASSIS ELECTRICAL
54A-194
STEP 2. Check the radio switch (LH) connector C-311 and
clock spring connector C-303 for loose, corroded or
damaged terminals, or terminals pushed back in the
connector.
Q: Is remote controlled radio switch (LH) connector C-311
and clock spring connector C-303 in good condition?
YES : Go to Step 3.
NO : Repair or replace the connector. Refer to GROUP
00E, Harness Connector Inspection
. The
remote controlled radio switch (LH) should work
normally.
STEP 3. Check the wiring harness between remote
controlled radio switch connector C-311 (terminals1 and 2)
and clock spring connector C-303 (terminals 4 and 5).
Q: Are the wiring harness between remote controlled radio
switch connector C-311 (terminals 1 and 2) and clock
spring connector C-303 (terminals 4 and 5) in good
condition?
YES : No action to be taken.
NO : Repair the wiring harness. The remote controlled
radio switch (LH) should work normally.
16DB535A
CONNECTORS: C-303, C-311
C-311 (B)
C-303 (GR)
C-303
C-311
HARNESS SIDE
16DB535A
CONNECTORS: C-303, C-311
C-311 (B)
C-303 (GR)
C-303
C-311
HARNESS SIDE
RADIO WITH CD PLAYER
CHASSIS ELECTRICAL
54A-195
INSPECTION PROCEDURE 5: No Sound from One Speaker.
.
CIRCUIT OPERATION
The speakers sound according to audio signal output
from the radio and CD player.
.
TECHNICAL DESCRIPTION (COMMENT)
The cause is probably a faulty speaker circuit sys-
tem.
.
TROUBLESHOOTING HINTS
• Refer to circuit diagrams GROUP-
• Refer to configuration diagrams GROUP-
• Malfunction of the speaker.
• Damaged wiring harness or connector.
• Malfunction of the radio and CD player.
16DB536A
CONNECTORS: C-26, C-129, C-111
C-26
C-111
C-129 (B)
16DB537A
CONNECTORS: C-12, C-28, C-108
C-12
C-28
C-108 (B)
AC305268
D-09
D-12
AT
CONNECTORS: D-09, D-12
16DB539A
CONNECTOR: E-10
16DB538A
CONNECTOR: E-02
RADIO WITH CD PLAYER
CHASSIS ELECTRICAL
54A-196
DIAGNOSIS
STEP 1. Check which speaker has no sound on the
vehicles with audio amplifier.
Determine which speaker does not sound.
Q: Which speaker does not sound?
Tweeter (RH) : Go to Step 2.
Tweeter (LH) : Go to Step 5.
Front door speaker (LH) : Go to Step 8.
Front door speaker (RH) : Go to Step 11.
Rear speaker (LH) : Go to Step 14.
Rear speaker (RH) : Go to Step 17.
STEP 2. Check the tweeter (RH).
(1) Remove the tweeter (RH). Refer to
(2) Check that the tweeter (RH) generates noise when a
five-volt voltage is applied on the tweeter (RH) terminal.
Q: Is the tweeter (RH) generating noise?
YES : Go to Step 3.
NO : Replace the tweeter (RH). The tweeter (RH) should
sound.
STEP 3. Check tweeter (RH) connector C-108 and radio
and CD player connector C-111 for loose, corroded or
damaged terminals, or terminals pushed back in the
connector.
Q: Are harness connectors C-108 and C-111 in good
condition?
YES : Go to Step 4.
NO : Repair or replace the component(s). Refer to GROUP
00E, Harness Connector Inspection
. The
tweeter (RH) should sound.
ACX01868AB
5V
54DB041A
HARNESS SIDE
3
9
4
12
14
6
13
5
1110
8
2
7
1
CONNECTOR: C-111
16DB540A
CONNECTOR: C-108
C-108 (B)
HARNESS SIDE
RADIO WITH CD PLAYER
CHASSIS ELECTRICAL
54A-197
STEP 4. Check the wiring harness between tweeter (RH)
connector C-108 (terminals 1 and 2) and radio and CD
player connector C-111 (terminals 6 and 14).
Q: Is the wiring harness between tweeter (RH) connector
C-108 (terminals 1 and 2) and radio and CD player
connector C-111 (terminals 6 and 14) in good condition?
YES : The procedure is complete.
NO : Repair the wiring harness. The tweeter (RH) should
sound.
STEP 5. Check the tweeter (LH).
(1) Remove the tweeter (LH). Refer to
.
(2) Check that the tweeter (LH) generates noise when a
five-volt voltage is applied on the tweeter (LH) terminal.
Q: Is the tweeter (LH) generating noise?
YES : Go to Step 6.
NO : Replace the tweeter (LH). The tweeter (LH) should
sound.
54DB041A
HARNESS SIDE
3
9
4
12
14
6
13
5
1110
8
2
7
1
CONNECTOR: C-111
16DB540A
CONNECTOR: C-108
C-108 (B)
HARNESS SIDE
ACX01868AB
5V
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