Mitsubishi Colt Ralliart. Manual - part 487

RADIO AND CD PLAYER

CHASSIS ELECTRICAL

54A-93

SYMPTOM PROCEDURES

Inspection Procedure 1: Power of Radio and CD Player does not Turn ON when the Ignition Switch is 
in the "ACC" Position or "ON" Position.

IGNITION
SWITCH (ACC)

Radio and CD Player Power Supply Circuit

Wire colour code
B : Black     LG : Light green     G : Green     L : Blue     W : White     Y : Yellow     SB : Sky blue
BR : Brown     O : Orange     GR : Gray     R : Red     P : Pink     V : Violet

RADIO  AND CD PLAYER

COMMENTS ON TROUBLE SYMPTOM

The cause is probably a faulty radio and tape player 
or CD player power supply circuit system.

POSSIBLE CAUSES

• Damaged wiring harness or connector.

• Malfunction of radio and CD player.

DIAGNOSIS PROCEDURE

Step 1. Check to see that the power turns ON 
when the power switch is turned ON.
(1) Turn the ignition switch to "ACC" position.
(2) Turn ON the radio and CD player power switch.

Q:  Is it possible to put the radio and CD player power 

in the "ON" position?
YES : 

Go to Step 2.

NO : 

Go to Step 5.

Step 2. Connector check: radio and CD player 
connector B-11.

AC401055

AN

Connector: B-11

Harness side

Q: Is radio and CD player connector B-11 in good 

condition?
YES : 

Go to Step 3.

NO : 

Repair or replace the component(s). If the 
power switch is turned on, the radio and 
tape player or CD player should operate 
normally.

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RADIO AND CD PLAYER

CHASSIS ELECTRICAL

54A-94

Step 3. Voltage measurement at radio and CD 
player connector B-11 in order to check the 
battery circuit of power supply system to the 
radio and CD player (ignition switch ACC).

AC401055

AN

Connector: B-11

Harness side

(1) Disconnect radio and CD player connector B-11, 

and measure at the wiring harness side.

(2) Turn the ignition switch to "ACC" position.

AC400965

Connector B-11 
(Harness side)

AL

(3) Measure the voltage between terminal 10 and 

earth.

OK: Battery positive voltage

Q: Is the check result normal?

YES : 

Go to Step 5.

NO : 

Go to Step 4.

Step 4. Check the wiring harness between radio 
and CD player connector B-11 (terminal 10) and 
ignition switch (ACC).
NOTE: 

AC313873BD

Connectors: B-129, B-131

Harness side

Junction block (Rear view)

B-129

B-131

B-129

Harness side

B-131

AC401055

AN

Connector: B-11

Harness side

Prior to the wiring harness inspection, check junction 
block connectors B-129 and B-131, and repair if nec-
essary.

Q: Are the wiring harnesses between radio and CD 

player connector B-11 (terminal 10) and ignition 
switch (ACC) in good condition?
YES : 

Go to Step 5.

NO : 

Repair or replace the damage 
component(s). If the power switch is turned 
on, the radio and CD player should operate 
normally.

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RADIO AND CD PLAYER

CHASSIS ELECTRICAL

54A-95

Step 5. Check the assembling state of the radio 
and CD player.
NOTE: The radio and CD player is earthed to the 
instrument panel centre reinforcement directly.

Q: Is the radio and CD player installed correctly?

YES : 

Repair or replace the radio and CD player. If 

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

NO : 

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

Inspection Procedure 2: No Sound from One Speaker.

FRONT DOOR 
SPEAKER (LH)

FRONT DOOR 
SPEAKER (RH)

REAR DOOR 
SPEAKER (LH)

REAR DOOR 
SPEAKER (RH)

RADIO  AND CD PLAYER

Speaker System Circuit

Wire colour code
B : Black     LG : Light green     G : Green     L : Blue     W : White     Y : Yellow     SB : Sky blue
BR : Brown     O : Orange     GR : Gray     R : Red     P : Pink     V : Violet

COMMENTS ON TROUBLE SYMPTOM

The cause is probably a faulty speaker circuit sys-
tem.

POSSIBLE CAUSES

• Malfunction of speaker.

• Damaged wiring harness or connector.

• Malfunction of radio and CD player.

DIAGNOSIS PROCEDURE

Step 1. Check to see which speaker the sound is 
not sent from.
Use the speaker test to determine which speaker 
does not sound.

Q:  Which speaker is not working?

Front door speaker (LH) : 

Go to Step 2.

Front door speaker (RH) : 

Go to Step 5.

Rear door speaker (LH) : 

Go to Step 8.

Rear door speaker (RH) : 

Go to Step 11.

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RADIO AND CD PLAYER

CHASSIS ELECTRICAL

54A-96

Step 2. Check the front door speaker (LH).
(1) Remove the front door speaker (LH). Refer to 

P.54A-120

.

ACX01868

(2) Check that the front door speaker (LH) generates 

noise when a five-volt voltage is applied on the 
front door speaker (LH) terminal.

Q: Is the front door speaker (LH) generating noise?

YES : 

Go to Step 3.

NO : 

Replace the front door speaker (LH). The 
front door speaker (LH) should sound.

Step 3. Connector check: Front door speaker 
(LH) connector D-14 and radio and CD player 
connector B-11.

AC401055

AN

Connector: B-11

Harness side

AC313886AK

Connector: D-14

Harness side

Q: Are harness connectors D-14 and B-11 in good 

condition?
YES : 

Go to Step 4.

NO : 

Repair or replace the damage 
component(s). The front door speaker (LH) 
should sound.

Step 4. Check the wiring harness between front 
door speaker (LH) connector D-14 (terminal 1 and 
2) and radio and tape player or CD player 
connector B-11 (terminals 5 and 13).

AC401055

AN

Connector: B-11

Harness side

AC313886AK

Connector: D-14

Harness side

NOTE: 

AC401053

Connector: B-42

AB

Prior to the wiring harness inspection, check interme-
diate connectors B-42, and repair if necessary.

Q: Is the wiring harness between front door speaker 

(LH) connector D-14 (terminal 1 and 2) and radio 
and CD player connector B-11 (terminal 5 and 13) 
in good condition?
YES : 

Repair or replace the radio and CD player. 

The front door speaker (LH) should sound.

NO : 

Repair or replace the damage 
component(s). The front door speaker (LH) 
should sound.

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