1998 MITSUBISHI LANCER EVOLUTION IV headlamp

MPI – Troubleshooting13-16
Code No. 64 Alternator FR Terminal SystemProbable cause
Range of Check
Engine speed is approximately 50 r/min or more.
Set conditions
Input voltage at the alternator FR terminal is 4.5 V or more for 20 seconds.Open circuit in alternator FR terminal circuit
Malfunction of the engine-ECU.
OK
Replace the alternator.
NG
Check the harness wire between
the engine-ECU and alternator
connector.NG
Repair
OK
Check trouble symptom.
Measure at the alternator connec-
tor
Connect the connector.
(Use test harness MB991519.)
Voltage between 4 (blue clip)
and earth
(Engine: Idling)
(Radiator fan: Stopped)
(Headlamp: OFF → ON)
(Brake lamp: OFF → ON)
(Rear defogger switch: OFF
→ ON)
OK:Voltage drops by 0.2 to
3.5 V.NGMeasure at the alternator connec-
tor A-05.
Disconnect the connector, and
measure at the harness side.
Voltage between 4 and earth
(Ignition switch: ON)
OK:4.8 – 5.2 VNGCheck the following connec-
tors:
B-60, A-88NG
Repair
OK
Check trouble symptom.
NG
Check the harness wire between
the engine-ECU and alternator
connector.NG
Repair
OK
Replace the engine-ECU.
OK
Check the following connector:
A-05NG
Repair
OK
Replace the engine-ECU.

MPI – Troubleshooting13-23
Terminal
No.Normal condition Check condition (Engine condition) Check item
21Fan motor relay (LOW)Fan not operating (coolant temperature: 90C or
below)Battery voltage
Fan at low speed (coolant temperature: 90 – 100C)0 – 3 V
22A/C relayEngine: Idling
A/C switch: OFF to ON (Compressor is being
driven.)Battery voltage, or 6 V
or more instanta-
neously to 0 – 3 V
33Alternator G terminalEngine: Warm, idle (radiator fan: OFF)
Headlamp: OFF to ON
Brake lamp: OFF to ON
Rear defogger switch: OFF to ONVoltage rises by 0.2 –
3.5 V.
36Engine warning lampIgnition switch: OFF → ON0 – 3 V → Battery
voltage (After several
seconds have
elapsed)
37Power steering fluid
pressure switchEngine: Idling after
warming upWhen steering wheel is
stationaryBattery voltage
When steering wheel is
turned0 – 3 V
38Control relayIgnition switch: OFFBattery voltage
Ignition switch: ON0 – 3 V
39Fuel pump relay No.2While engine is idling, suddenly depress the
accelerator pedal.Momentarily rises
slightly from 0 to 3 V.
40Exhaust temperature
warning lampIgnition switch: OFF to ON0 – 3 V to battery
voltage (After several
seconds have
elapsed)
41Alternator FR terminalEngine: Warm, idle (radiator fan: OFF)
Headlamp: OFF to ON
Brake lamp: OFF to ON
Rear defogger switch: OFF to ONVoltage drops by 0.2 –
3.5 V.
45A/C switchEngine: Idle speedTurn the A/C switch OFF0 – 3 V
Turn the A/C switch ON
(A/C compressor is oper-
ating)Battery voltage
60Oxygen sensor heater
(Evolution V only)
Engine: Idling0 – 3 V
(Evolution-V only)
Engine speed: 5,000 r/minBattery voltage
71Ignition switch-STEngine: Cranking8 V or more

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 – Battery54-5
BATTERY TESTING PROCEDURE
TEST STEP
(1) Turn headlamps on for 15 seconds.
(2) Turn headlamps off for 2 minutes to allow battery voltage to
stabilize.
(3) Disconnect cables.
Read open circuit voltage.
OK:Open circuit voltage is more than 12.4 VNGCharge battery at 5 amps. (see LOAD TEST RATE CHART)
RetestOK
(1) Connect a load tester to the battery.
(2) Load the battery at the recommended discharge rate (see LOAD
TEST RATE CHART).
(3) Read voltage after 15 seconds, then remove load.
(4) Compare the measured value with the minimum voltage (see
LOAD TEST CHART).
OK:Higher than minimum voltageNG
Replace battery
OK
Normal
LOAD TEST RATE CHART
Battery type28B19L34B19L44B20L95D31L55D23L55B24L
Charging time when fully discharged h
[5-amp rated current charging]56713108
Load test (Amps)120130160310170170
LOAD TEST CHART
Temperature C21 and
above16 to
2010 to
154 to 9–1 to 3–7 to
–2–12 to
–8–18 to
–13
Minimum voltage V9.69.59.49.39.18.98.78.5

CHASSIS ELECTRICAL – Headlamp54-32
HEADLAMP
SERVICE SPECIFICATIONS
ItemsStandard valueLimit
Headlamp
aiming
High
beam
Vertical direction25’ (22 mm) below horizontal line–
aiming
[Parenthe-
sized are
allowable
beam
Horizontal
directionLeft head-
lampParallel to direction of vehicle travel–
allowable
beam axis
deviations 3
m ahead of
Right head-
lamp15’ (13 mm) leftward from vertical line (V)–
m ahead of
headlamp.]Low
beam
Vertical direction25’ (22 mm) below horizontal line–p]beam
Horizontal directionPosition where 15* rising section intersects
vertical line (V)–
Headlamp intensity cd (Center of high-beam high intensity
zone)–15,000 or
more per
light
Cautions in Handling Headlamp Assembly
Each headlamp assembly has a plastic outer lens on. Observe the do’s and don’ts below when
handling the headlamps.

Do not leave the headlamps lit for longer than 3 minutes with a protective cover on.

Do not mask the outer lens surface by taping or in any other way.

Do not scrub the outer lens surface with a pointed tool.

Use the designated wax remover for cleaning the outer lens surface. Rinse it thoroughly.

Use the designated genuine bulbs.
SPECIAL TOOLS
ToolNumberNameUse
MB991502MUT-II sub as-
semblyETACS-ECU input signal checking

CHASSIS ELECTRICAL – Headlamp54-33
TROUBLESHOOTING
DIAGNOSIS FUNCTION
INPUT SIGNAL INSPECTION POINTS
Refer to Group 00 – How to Use Troubleshooting / Inspection Service Points.
The lighting monitor buzzer does not sound even when
the ignition key is removed with the tail lamps or
headlamps ON and the driver’s side door open. [However,
the key reminder warning buzzer sounds when inserting
the key into the ignition key cylinder.
Probable cause
The cause is probably a malfunction of the lighting switch input circuit system or
a malfunction of ETACS-ECU or buzzer ECU. When the key reminder warning buzzer
is sounding, the lighting monitor warning buzzer does not sound even if the tail lamps
or headlamps are lit.
Malfunction of harness or connector

Malfunction of ETACS-ECU

Malfunction of buzzer ECU

MUT-II Pulse check
OK:MUT-II buzzer sounds once
when the lighting switch is
turned from OFF to TAIL or
HEAD.NG
Check the following connectors.
B-79Repair
OK
Check trouble symptom.NGOK
Replace the ETACS-ECU.

NG
Check the harness in the junction block.NG
Replace the ETACS-ECU or the buzzer
ECU.OKRepair NG

CHASSIS ELECTRICAL – Headlamp54-34
ON-VEHICLE SERVICE
HEADLAMP AIMING
Bring the vehicle in the following conditions before aiming
the headlamp.

Check the tires for inflation pressure. Pump them up if
necessary to the labeled pressure level.

Set the vehicle unladen on a level floor.

Place one person (approximately 55 kg) on the driver’s
seat.
1. Position the tester so that its converging lens faces the
high-beam lamp ( marked) center to center at a distance
of 3 m from each other.
2. Aim the headlamps to appropriate standard values using
the aiming adjustment screw.
Face the face 3 m apart from each other
Lamp center
16M0001
Horizontal adjustment
Vertical
adjust-
ment

CHASSIS ELECTRICAL – Headlamp54-35
Standard values:
Vertical direction25’ (22 mm) below hori-
zontal line (H)
Horizontal
directionLeft headlampParallel to direction of
vehicle travel
Right head-
lamp15’ (13 mm) leftward
from vertical line (V)
Caution:
(1) Perform aiming adjustments, one light at a time,
with the other headlamp disconnected so as not
to be lit unless circumstances compel otherwise.
When reconnecting the headlamps, be careful not
to upset their aim. Do not leave the headlamps
on for any longer than 3 minutes if their outer
lenses are covered with a surface covering
impervious to light.
(2) Do not mask the outer lenses by taping or in any
other way.
(3) Aiming adjustment must be completed with the
aiming adjustment screws turned in the tightening
direction.
INTENSITY MEASUREMENT
1. Position the tester so that its light sensor faces each
headlamp center to center at the appropriate distance
shown.
2. Maintain an engine speed of 2,000 r/minto keep the battery
in the charged condition.
3. Check that the high-beam headlamp intensity at the center
of the high intensity zone satisfies the limit value.
Limit: 15,000 cd or more per headlamp
Caution
(1) Perform intensity measurement, one headlamp at
a time, with the low-beam lamp and the other
headlamp disconnected from the battery unless
circumstances compel otherwise. Do not leave
the headlamps on for any longer than 3 minutes
if their outer lenses are covered with a surface
covering impervious to light.
(2) Do not mask the outer lens surfaces by taping
or in any other way.
HEADLAMP BULB REPLACEMENT
1. Disconnect the connector.
2. Remove the socket cover.
3. Unhook the spring which secures the bulb, and then
remove the bulb.
Caution
Do not touch the surface of the bulb with hands or
dirty gloves. If the surface does become dirty, clean
it with alcohol or thinner, and let it dry thoroughly
before installing.

Lamp center
Vertical direction
Vertical direction High
intensity
zone
center
(optical
axis)
High
intensity
zone
center
(optical
axis)High intensity zone
High intensity zoneLamp center V
H
V
H
Screen type tester: 3 m Converging
lens type tester: 1 m
Spring