1998 MITSUBISHI LANCER EVOLUTION IV radio

54-2
ON-VEHICLE SERVICE 27. . . . . . . . . . . . . . . .
COMBINATION METERS 30. . . . . . . . . . . . . . .
HEADLAMP 32. . . . . . . . . . . . . . . . . . . . . . . .
SERVICE SPECIFICATIONS 32. . . . . . . . . . . .
SPECIAL TOOLS 32. . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 33. . . . . . . . . . . . . . . . . .
ON-VEHICLE SERVICE 34. . . . . . . . . . . . . . . .
HEADLAMP AND FRONT TURN-SIGNAL
LAMP* 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FRONT FOG LAMP 39. . . . . . . . . . . . . . . .
SERVICE SPECIFICATIONS 39. . . . . . . . . . . .
ON-VEHICLE SERVICE 39. . . . . . . . . . . . . . . .
FOG LAMP 41. . . . . . . . . . . . . . . . . . . . . . . . . . .
REAR COMBINATION LAMP* 42. . . . . . .
TROUBLESHOOTING 42. . . . . . . . . . . . . . . . . .
REAR COMBINATION LAMP* 42. . . . . . . . . .
SIDE TURN-SIGNAL LAMP 43. . . . . . . . .
SPECIAL TOOL 43. . . . . . . . . . . . . . . . . . . . . . . SIDE TURN-SIGNAL LAMP 43. . . . . . . . . . . .
HAZARD WARNING LAMP
SWITCH, CLOCK 44. . . . . . . . . . . . . . . . . . .
SPECIAL TOOL 44. . . . . . . . . . . . . . . . . . . . . . .
HAZARD WARNING LAMP SWITCH 44. . . .
RADIO AND TAPE PLAYER 45. . . . . . . .
TROUBLESHOOTING 45. . . . . . . . . . . . . . . . . .
RADIO AND TAPE PLAYER 47. . . . . . . . . . . .
SPEAKER 47. . . . . . . . . . . . . . . . . . . . . . . . .
ANTENNA 48. . . . . . . . . . . . . . . . . . . . . . . . .
POLE ANTENNA 48. . . . . . . . . . . . . . . . . . . . . .
REAR WINDOW ANTENNA AND GLASS
DIVERSITY ANTENNA 49. . . . . . . . . . . . . . . . .
REAR WINDOW DEFOGGER 50. . . . . . .
TROUBLESHOOTING AUTOMATIC A/C> 50. . . . . . . . . . . . . . . . . . . . .
ON-VEHICLE SERVICE 50. . . . . . . . . . . . . . . .
REAR WINDOW DEFOGGER SWITCH
51. . .

CHASSIS ELECTRICAL – Ignition Switch and Immobilizer System54-14
INSPECTION PROCEDURE FOR DIAGNOSIS CODES
Code No. 11 Transponder communication systemProbable cause

The ID code of the transponder is not sent to the immobilizer-ECU immediately
after the ignition switch is turned to the ON position.

When starting the engine, one ignition key’s ID code interferes with another ignition
key’s code.
Radio interference of ID codes

Malfunction of the transponder

Malfunction of the ignition key ring antenna

Malfunction of harness or connector

Malfunction of the immobilizer-ECU
No
OK
Check the following connectors.
B-100, B-101NG
Repair
OK
Check trouble symptoms.NGCheck the harness wire between immo-
bilizer-ECU and key ring antenna.NG
Repair
OK
Replace the immobilizer-ECU.
NG
Diagnosis codes checkCode No. 12 occursTo INSPECTION PROCEDURE FOR
DIAGNOSIS CODE No. 12
(Refer to P.54-14.)
Code No. 11 occurs
Check the continuity of the ignition key
ring antenna. (Refer to P.54-20.)NG
Replace
Is there another ignition key near the
ignition key that is inserted in the ignition
switch?Ye sRemove the extra ignition key.
Check trouble symptoms.
Does the engine start using the spare
ignition key which has had the ID code
registered?OKReplace the ignition key that does not
work.Re-register the ID code.
(Refer to P.54-21.) NG
Code No. 12 ID code are not the same or are not registeredProbable cause
The ID code which is sent from the transponder is not the same as the ID code
which is registered in the immobilizer-ECU.
The ID code in the ignition key being used has not
been properly registered.

Malfunction of the immobilizer-ECU
Re-register the ID code.
(Refer to P.54-21.)Check trouble symptoms.NGReplace the immobilizer-ECU.

CHASSIS ELECTRICAL – Ignition Switch and Immobilizer System54-19
IGNITION SWITCH AND IMMOBILIZER SYSTEM
Caution: SRS
Before removal of air bag module and clock spring, refer to GROUP 52B – SRS Service Precautions
and Air Bag Module and Clock Spring.
REMOVAL AND INSTALLATION
4
58 6
109 7
2
13


3 4
Immobilizer-ECU removal steps
1. Hood lock release handle
2. Driver‘s side lower cover

Radio and tape player vehicles>

Heater control assembly vehicles>
3. Immobilizer-ECUIgnition switch and ignition key
ring antenna removal steps
1. Hood lock release handle
2. Driver‘s side lower cover
4. Steering wheel
5. Column cover, lower
6. Column cover, upper
7. Column switch
8. Ignition key ring antenna
A9. Steering lock cylinder
10. Ignition switch

CHASSIS ELECTRICAL – Radio and Tape Player54-45
RADIO AND TAPE PLAYER
TROUBLESHOOTING
There is noise when the engine is running.
Kind of Noise (Parenthe-
sized is how noise
sounds.)SymptomCauseRemedy
AM, FM: Ignition noise
(Popping, snapping,
crackling, buzzing)
Popping sound becomes
faster with the increase
of engine speed.

The noise is lost with
ignition switch turned to
ACC.
Mainly due to the
spark plugs.

Due to noise circula-
tion from elsewhere

Noise from the engineCheck the noise capacitor
and earth cable and
replace if necessary. (See
Fig. 1 and Fig. 2.)
AM, FM: Defogger noise
(1) (Murmuring)Occurs when the defogger
switch is turned to ON and
OFF.Noise produced by spark-
ing when the defogger
switch is turned to ON/
OFF enters the glass
antenna.Check the noise capacitor
and replace if necessary.
(See Fig. 1.)
AM, FM: Defogger noise
(2) (Snapping noise)Occurs when the defogger
switch is turned to ON.Noise produced by current
flowing in the defogger
enters the glass antenna.Check the choke coil and
replace if necessary.
(See Fig. 3.)
AM, FM: Defogger noise
(3) (Scratching, gaggling)Occurs when the defogger
switch is turned to ON with
print heater wire broken.Noise produced by spark-
ing where print heater is
broken enters the glass
antenna.Repair the print heater.
AM, FM: Wiper motor
noise (Humming, wheez-
ing)Sound becomes faster with
the increase of wiper speed
and is lost when the wiper is
stopped.Caused by sparking in
wiper motor brush.Replace the wiper motor.
FM: Mirror motor noise
(Humming, wheezing)Occurs when electric mirror
operates.Caused by sparking in
mirror motor brush.Replace the electric
motor.
Other electrical compo-
nents–Noise is emitted by some
electrical components in
long use.Repair or replace electri-
cal components.
Static electricity (Crack-
ling, crinkling)
Noise is stopped when
the vehicle comes to a
complete stop.

Noise becomes louder
when the clutch is
released.Occurs when parts or
wiring move for some
reason and contact metal
parts of the body.Put parts or wiring into
position.
Various noises are produced
by body parts.Due to electrical detach-
ment of the hood, exhaust
pipe and muffler, suspen-
sion, etc. from the body.Tighten mounting bolts
securely. In many cases,
remedy of one part does
not eliminate the problem
due to incomplete earthing
elsewhere.
Caution
(1) Never let the noise filter contact a high tension cable. The noise filter could break down.
(2) Check that there is no external noise. This check is necessary to prevent misidentification of noise
sources.
(3) Noise prevention should be performed by eliminating noise sources in the descending order of loudness.

CHASSIS ELECTRICAL – Radio and Tape Player54-46
NOTE
1. Noise Suppressing Capacitor
The capacitor does not allow the passage of DC current but AC current. It decreases in impedance (resistance
to AC) as the number of waves increases, making the AC flow easier. A noise suppressing capacitor relying
on this property to function is inserted between a noise generating power line and earthing line to suppress
noise by earthing noise components (in AC or pulse signal) to the vehicle body.
2. Noise Filter
The coil allows the passage of DC current and increases in impedance (resistance to AC) as the number of
waves increases. A noise suppressing coil relying on this property to function is inserted somewhere in a noise
generating power line, preventing noise components from flowing or radiating from the line.
Fig: 1
Fig: 2
Fig: 3
Noise condensor
Choke coil
Choke coil

CHASSIS ELECTRICAL – Radio and Tape Player / Speaker54-47
RADIO AND TAPE PLAYER
REMOVAL AND INSTALLATION
1
32
Removal steps
1. Radio panel
2. Radio and tape player
3. Radio bracket
SPEAKER
REMOVAL AND INSTALLATION
21
345
Removal steps
1. Door trim
2. Speaker
3. Speaker cover4. Speaker brakcet
5. Tweeter speaker

CHASSIS ELECTRICAL – Speaker / Antenna54-48

7 6
Rear shelf speaker removal steps
6. Speaker garnish 7. Speaker
ANTENNA
POLE ANTENNA
REMOVAL AND INSTALLATION
1
23
5
47 68 9
Removal steps
1. Pole
2. Radio panel
3. Radio and tape player
4. Hood lock release handle5. Driver side lower cover
6. Clip
7. Cowl side trim
A8. Antenna assembly
9. Antenna base gasket

CHASSIS ELECTRICAL – Antenna54-49
REMOVAL SERVICE POINT
AANTENNA ASSEMBLY REMOVAL
To facilitate the installation work of the antenna assembly,
perform the following before removing the feeder cable:
1. Tie a cord to the end of the feeder cable.
2. Pull out the antenna assembly until the end of the drain
pipe can be seen.
3. Pass the cord through the hole in the end of the drain
pipe and wrap it with vinyl tape.
Caution
Wrap it securely so that the cord will not come off.
4. Pull out the antenna assembly little by little to remove
it.
REAR WINDOW ANTENNA AND GLASS DIVERSITY ANTENNA
REMOVAL AND INSTALLATION
12
Removal steps

Glove box

Front pillar trim (LH), center pillar trim
(LH), rear pillar trim (LH)
Assist grip
1. Radio and tape player
A2. Antenna assembly
Feeder cable
Cord
Cord
Tape
Hole