Mitsubishi Colt Ralliart. Manual — part 488

RADIO AND CD PLAYER

CHASSIS ELECTRICAL

54A-97

Step 5. Check the front door speaker (RH).
(1) Remove the front door speaker (RH). Refer to

P.54A-120

.

ACX01868

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

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

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

YES :

Go to Step 6.

NO :

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

Step 6. Connector check: Front door speaker
(RH) connector D-02 and radio and tape player or
CD player connector B-11.

AC401055

AN

Connector: B-11

Harness side

AC313880AJ

Connector: D-02

Harness side

Q: Are harness connectors D-02 and B-11 in good

condition?
YES :

Go to Step 7.

NO :

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

Step 7. Check the wiring harness between front
door speaker (RH) connector D-02 (terminal 1
and 2) and radio and CD player connector B-11
(terminal 6 and 14).

AC401055

AN

Connector: B-11

Harness side

AC313880AJ

Connector: D-02

Harness side

NOTE:

AC401055

Connector: B-21

AB

Prior to the wiring harness inspection, check interme-
diate connector B-21, and repair if necessary.

Q: Is the wiring harness between front door speaker

(RH) connector D-02 (terminal 1 and 2) and radio
and CD player connector B-11 (terminal 6 and 14)
in good condition?
YES :

Repair or replace the radio and CD player.

The front door speaker (RH) should sound.

NO :

Repair the wiring harness. The front door
speaker (RH) should sound.

Main

Index

Group

TOC

RADIO AND CD PLAYER

CHASSIS ELECTRICAL

54A-98

Step 8. Check the rear door speaker (LH).
(1) Remove the rear door speaker (LH). Refer to

P.54A-120

.

ACX01868

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

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

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

YES :

Go to Step 9.

NO :

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

Step 9. Connector check: Rear door speaker (LH)
connector D-18 and radio and CD player
connector B-11.

AC401055

AN

Connector: B-11

Harness side

AC313884AJ

Connector: D-18

Harness side

Q: Are harness connectors D-18 and B-11 in good

condition?
YES :

Go to Step 10.

NO :

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

Step 10. Check the wiring harness between rear
door speaker (LH) connector D-18 (terminal 1 and
2) and radio and CD player connector B-11
(terminal 2 and 8).

AC401055

AN

Connector: B-11

Harness side

AC313884AJ

Connector: D-18

Harness side

NOTE:

AC401059

Connector: C-18

AB

Prior to the wiring harness inspection, check interme-
diate connector C-18, and repair if necessary.

Q: Is the wiring harness between rear door speaker

(LH) connector D-18 (terminal 1 and 2) and radio
and CD player connector B-11 (terminal 2 and 8) in
good condition?
YES :

Repair or replace the radio and tape player

or CD player. The rear door speaker (LH)
should sound.

NO :

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

Main

Index

Group

TOC

RADIO AND CD PLAYER

CHASSIS ELECTRICAL

54A-99

Step 11. Check the rear door speaker (RH).
(1) Remove the rear door speaker (RH). Refer to

P.54A-120

.

ACX01868

(2) Check that the rear door speaker (RH) generates

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

Q: Is the rear door speaker (RH) generating noise?

YES :

Go to Step 12.

NO :

Replace the rear door speaker (RH). The
rear door speaker (RH) should sound.

Step 12. Connector check: Rear door speaker
(RH) connector D-07 and radio and CD player
connector B-11.

AC401055

AN

Connector: B-11

Harness side

AC313882AJ

Connector: D-07

Harness side

Q: Are harness connectors D-07 and B-11 in good

condition?
YES :

Go to Step 13.

NO :

Repair or replace the damage
component(s). The rear door speaker (RH)
should sound.

Step 13. Check the wiring harness between rear
door speaker (RH) connector D-07 (terminals 1
and 2) and radio and CD player connector B-11
(terminals 1 and 7).

AC401055

AN

Connector: B-11

Harness side

AC313882AJ

Connector: D-07

Harness side

NOTE:

AC401057

Connector: C-01

AB

Prior to the wiring harness inspection, check interme-
diate connector C-01, and repair if necessary.

Q: Is the wiring harness between rear door speaker

(RH) connector D-07 (terminal 1 and 2) and radio
and CD player connector B-11 (terminal 1 and 7) in
good condition?
YES :

Repair or replace the radio and CD player.

The rear door speaker (RH) should sound.

NO :

Repair or replace the damage
component(s). The rear door speaker (RH)
should sound.

Main

Index

Group

TOC

RADIO AND CD PLAYER

CHASSIS ELECTRICAL

54A-100

INSPECTION PROCEDURE 3: Noise Appears at Certain Places when Travelling (AM).

DIAGNOSIS PROCEDURE

Step 1. Check the noise occur when entering or
near a particular structure (building, tunnel,
mountain, etc).

Q: Does the noise occur when entering or near a

particular structure (building, tunnel, mountain,
etc).?
YES :

Go to Step 3.

NO :

Go to Step 2.

Step 2. After taking the following measures to
prevent the noise, check that no noise appears.
(1) Change to a different station with a stronger wave

to boost resistance to interference.

(2) Suppress high tones to reduce noise.
(3) Extend antenna completely.

Q: Do the following measures eliminate the noise?

YES :

The following causes can be considered.

NO :

Go to Step 4.

Step 3. Ask the owner about the state of the
noise.
(1) Find out the following information from the owner.
(2) Place where the noise occurs.
(3) Locality conditions (valley, mountain, etc).
(4) Name and frequency of stations affected by noise

Q: Which is the noise, vehicle noise or external

noise?
Vehicle noise :

It may not be possible to prevent

noise if the signal is weak.

External noise :

In almost all cases, prevention on

the receiver side is impossible. Weak
signals especially are susceptible to
interference. Go to Step 4.

Step 4. Check that there is no noise.

Q: Does noise still exist?

YES :

If there is more noise than on radios in other

vehicles, find out the noise condition and
the name and frequency of the receiving
stations from the owner, and consult with
the radio manufacturer's service centre.

NO :

Normal.

Main

Index

Group

TOC