1998 MITSUBISHI LANCER EVOLUTION IV Workshop Manual

CHASSIS ELECTRICAL – Front Fog Lamp
ILL
ILL
54-41
FOG LAMP
REMOVAL AND INSTALLATION
31
4 2
1. Front fog lamp switchFog lamp removal steps
2. Front bumper
3. Fog lamp bezel
4. Fog lamp assembly
INSPECTION
FOG LAMP SWITCH CONTINUITY CHECK
Switch positionTerminal No.p
1234–56
OFF
ON

CHASSIS ELECTRICAL – Rear Combination Lamp54-42
REAR COMBINATION LAMP
TROUBLESHOOTING
For the troubleshooting of the lighting monitor warning buzzer, refer to P.54-33.
REAR COMBINATION LAMP
REMOVAL AND INSTALLATION
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.
2
1
3
1. Column switchRear combination lamp removal
steps
2. Rear end trim
3. Rear combination lamp
INSPECTION
LIGHTING SWITCH CONTINUITY CHECK
Switch positionTerminal No.
Connector BConnector A
5671
LIGHTING
SWITCH
OFF
SWITCHTAIL
HEAD
Connector A Connector B

CHASSIS ELECTRICAL – Side Turn-signal Lamp54-43
SIDE TURN-SIGNAL LAMP
SPECIAL TOOL
ToolNumberNameUse
MB990784Ornament removerRemoval of side turn-signal lamp
SIDE TURN-SIGNAL LAMP
REMOVAL
INSTALLATION
Fit the hook side rearward.
Fender panelMB990784
LockMB990784
Lock
Fender
panel
Hook

CHASSIS ELECTRICAL – Hazard Warning Lamp Switch, Clock
ILL
ILL
54-44
HAZARD WARNING LAMP SWITCH, CLOCK
SPECIAL TOOL
ToolNumberNameUse
MB990784Ornament removerAir conditioner panel removal
HAZARD WARNING LAMP SWITCH
REMOVAL AND INSTALLATION
2
1 3
4
Hazard warning lamp switch
removal steps
1. Air conditioner panel
2. Switch holder
3. Hazard warning lamp switchClock removal steps
1. Air conditioner panel
4. Clock
INSPECTION
HAZARD WARNING LAMP SWITCH CONTINUITY
CHECK
Switch
iti
Terminal No.
position1245679–10
OFF
ON

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