engine MITSUBISHI LANCER EVOLUTION 2007 Service Repair Manual

CHASSIS ELECTRICAL -Combination Meter54A-16
INSPECTION PROCEDURE FOR TROUBLE SYMPTOMS
Inspection procedure 1
Speedometer inoperative (other meters are operated)
Probable cause
Failure may occur on engine-ECU system, harnesses, connectors, meter
assembly.DEngine-ECU fault
DHarness or connector fault
DMeter assembly fault
NO
MUT-IISelf-Diag. Code
Is diagnostic code P0500 for MPI output?YESPerform troubleshooting for MPI (Refer to GROUP 13A -
Troubleshooting)
OK
NG
Check the following connectors:
C-01, C-29, C-130, B-03
C-01, C-102, C-130, B-03
Repair
OK
Check trouble symptom.
NG
NG
RepairCheck harnesses:
DCombination meter to engine-ECU.
Check trouble symptom.
NG
Replace meter assembly.
OK
Check for input signal from ETACS-ECU with MUT-II
DVehicle speed signal (engine-ECU)NGReplace engine-ECU
NOTE
When vehicle speed signal is checked with MUT-IIin the ETACS-ECU input signal test, drive the vehicle
with MUT-IIconnected to diagnostic connector. When the buzzer sounds, this test is evaluated OK.
Inspection procedure 2
Tachometer inoperative (other meters are operated)
Probable cause
No input of ignition signal from engine, or failure may occur on power and earth
circuits of meter.DHarness or connector fault
DMeter assembly fault
OK
NO
MUT-IISelf-Diag. Code
Is DTC P0300 for MPI output?YESPerform troubleshooting for MPI (Refer to GROUP 13A -
Troubleshooting.)
NG
NG
RepairRepair
Check trouble symptom.
OK
Check the following connectors:
C-01, C-129, C-108, C-118
C-01, C-128, C-108, C-118
Replace meter assembly.Check harnesses:
DCombination meter to engine-ECU

CHASSIS ELECTRICAL -Combination Meter54A-20
TACHOMETER CHECK
1. Insert paper clip (Zem clip) from harness side of the probe
for detection of engine speed to connect engine speed
indicator.
2. Compare measured values of individual engine speed
with tachometer values, and ensure that indication
allowance is within standard value.
Standard value:
Engine speed (rpm)Indication allowance of tachometer
rpm
700±70
2,000- 100 +150
3,000- 100 +225
4,000- 125 +275
5,000- 125 +325
6,000- 125 +375
7,000- 100 +400
8,000+400
FUEL GAUGE UNIT CHECK
Remove fuel gauge unit from fuel tank.
BASIC RESISTANCE OF FUEL GAUGE UNIT
1. When float of fuel gauge unit is in Position F and E,
ensure that resistance between fuel gauge unit terminal
and earth terminal is within standard value.
Standard Value:
Float PositionMain fuel gauge unitSub fuel gauge unit
Position F2±1Ω2±1Ω
Position E41±1Ω69±1Ω
2. When float is moved slowly between Position F and E,
also ensure that resistance is smoothly changing.
Paper clipEngine speed indicator
Probe for detection
of engine speed
Position F
Position E Main fuel gauge unit
Sub fuel gauge unit

CHASSIS ELECTRICAL -Combination Meter54A-21
FLOAT HEIGHT OF FUEL GAUGE UNIT
When float is moved to contact float arm on stopper,
ensure that Position F (A) and E (B) are within standard
value.
Standard Value:
FloatPositionMainfuelgaugeunitSubfuelgaugeunitFloatPositionMainfuelgaugeunitSubfuelgaugeunit
Position F (A)33.3 mm10.7 mm
Position E (B)121.9 mm138.6 mm
ENGINE COOLANT TEMPERATURE GAUGE
UNIT CHECK
1. Drain coolant. (Refer to GROUP 14 - On-vehicle Service)
2. Remove water temperature gauge unit.
3. Put water temperature gauge unit into the hot water in
specified temperature, and ensure that basic resistance
is within standard value.
Standard value: 70_C 104±13.5Ω
Reference value:
TemperatureResistanceΩ
50_C230
60_C155
80_C73
4. After inspection, apply specified sealant at threads of
water temperature gauge unit, and tighten to the specified
torque.
Semi-drying sealant: 3M ATD Part No.1215 or
equivalent
5. Refill coolant. (Refer to GROUP 14 - On-vehicle Service.)
Main fuel gauge unit
Sub fuel gauge unit
A
B
A
B
ThermometerCircuit tester
11±1 N·m

CHASSIS ELECTRICAL -Headlamp Assembly54A-28
HEADLAMP INTENSITY MEASUREMENT
1. Using a photometer, and following its manufacture’s
instruction manual.
2. Maintain an engine speed of 2,000 r/min., with the battery
in the charging condition
3. Set the headlamps to high beam
4. Measure the headlamp centre intensity (a point of H line
and V line) and check to be sure that the limit value
is satisfied.
Limit:
High beam 30,000 cd or more per one headlamp
NOTE
1. There may be special local regulations pertaining to
headlamp intensity, be sure to make any adjustments
necessary to satisfy such regulations.
2. If an illuminometer is used to make the measurements,
convert its values to photometer values by using the
following formula.
I=Er
2Where:
I=intensity (cd)
E=illumination (lux)
r=distance (m) from headlamps to illuminometer
Caution
1. On the headlamp not yet adjusted, perform aiming
with connector removed and the lamps switched off,
if applicable. In addition, care should be taken to
prevent a change of optical axis when connector is
reconnected.
2. Plastic outer lens are equipped with headlamps. When
lens surface is covered with materials for not
penetrating light, headlamp operation time should be
within 3 minutes. In addition, masking such as taping
should not be performed.
HEADLAMP BULB (LOW BEAM)REPLACEMENT
(1) Disconnect battery.
(2) Disconnect connector.
(3) Screw out socket to pull out bulb.
(4) After bulb is replaced, properly reconnect connector.
Caution
Do not touch bulb surface bare-handed or with dirty
gloves. If dirt is attached on glass surface of the bulb,
immediately use alcohol or thinner to remove dirt, and
install the bulb after well dried.
Headlamp bulb

CHASSIS ELECTRICAL -Defogger54A-43
ON-VEHICLE SERVICE
PRINTED HEATER CHECK
(1) With engine running at 2,000 rpm and battery in charging
mode, check print heater for normal operation.
(2) With defogger switch in “ON” position, use circuit tester
to measure voltage of individual print heaters at the center
point A of rear window glass. When the tester indicates
approx. 6V, the print heater is evaluated normal.
(3) When the measured value at Position A is 12V, open
circuit occurs between Position A and minus terminal.
In this case, carefully move test bar to minus terminal
side to detect a rapid voltage drop point (0V). This voltage
drop point indicates open circuit section.
(4) When voltage at Position A is 0V, open circuit occurs
between Position A and plus terminal. According to the
previous step, detect a rapid voltage increase point (12V).
DEFOGGER RELAY CONTINUITY CHECK
Battery voltageTerminal No.yg
1345
De-energized
Energized
DEFOGGER SWITCH
REMOVAL, INSTALLATION AND CHECK
Refer to GROUP 55 - Heater Control Assembly, A/C Switch
and Fresh/Recirculated Air Switch.
(–) Terminal
(–) Terminal
A (Mid point): Approx. 6 V
Normal characteristics of print heater
Abnormal characteristics of print heater
Voltage
Voltage
(+) Terminal
(+) Terminal
Print heater length
Print heater length
Open section
Defogger relay
04Z0001
\

HEATER, AIR CONDITIONER AND VENTILATION-Troubleshooting55-7
Inspection procedure 5
Cold air not coming out from the air outlet
Probable cause
If cold air does not come out from the air outlet, the amount of refrigerant may
be inappropriate or the compressor circuit system may be defective.DRefrigerant line fault
DAmount of refrigerant fault
DCompressor fault
DCompressor relay fault
DDual pressure switch fault
DEngine-ECUfault
DA/C-ECU fault
OK
NG
Repair
NG
Check the harness between the A/C compressor relay and the
ignition switch (IG2), and repair if necessary.
OK
Check the trouble
symptoms.
Check the following connectors:
C-12X, C-130, C-102, C-209, C-210
C-12X, C-128, D-102, C-209, C-210NG
Repair
Check the following connectors:
C-12X, A-13, A-47.
C-12X, A-136, A-47.
OK
OK
Check the trouble
symptoms.
NG
OK
NG
Replace
OK
OK
OK
NG
Check the harness between the battery and the A/C
compressor relay., and repair if necessary.
OK
Check the trouble
symptoms.
Check the following connectors:
B-12X, A-43
B-12X, C-136.(1) NG
RepairNG
(2) NG
OK
Check the dual pressure switch.
OK
NG
Repair
Check the harness between the A/Compressor relay and the
A/Compressor.
NG
Repair
Check the following connectors:B-12X, C-126.
OK
Check the trouble
symptoms.
NG
OKNG
Repair
Check the harness between the A/Compressor relay and the
Engine-ECU.
To the next page
Check refrigerant for leakage.
NG
Replace
NG
Replace
NG
NG
Replace
Check the amount of refrigerant.
Check the compressor relay.
Check the compressor magnetic clutch.
Check the refrigerant temperature switch.
Measure at the compressor relay B-12X.
DDisconnect the connector and measure at the harness
side.
DIgnition switch: ON
(1) Voltage between terminal 1 and body earth.
OK :Battery voltage
(2) Continuity between terminal 2 and body earth.
OK :Battery voltage
Refer to Inspection procedure 6 magnet clutch not working
normally.

HEATER, AIR CONDITIONER AND VENTILATION-Troubleshooting55-8
Repair
Repair
NG
Replace the A/C-ECU .
Replace the Engine-ECU .
NG
Repair
Check the following connectors:
A-36, C-111, C-130, C-122, C-32.
A-36, C-111, C-128, C-122, C-32.
OK
Check the trouble
symptoms.
NG
OKNG
Check the harness between the dual pressure switch and the
Engine-ECU.
Check the following connectors:C-32, C-111, A-36.
OK
NG
OKNG
Check the harness between the dual pressure switch and the
A/C-ECU.
From the previous page
Check the trouble
symptoms.RepairNG
Inspection procedure 6
Magnet clutch not working normally
Probable cause
If the magnet clutch does not work normally, the field core or the compressor
may be defective.DCompressor fault
DField core fault
Replace the field core.
Is not the Compressor locked ?NGReplace the compressor and field core.
No

HEATER, AIR CONDITIONER AND VENTILATION-Troubleshooting55-9
Inspection procedure 7
Condenser fan not working at all
Probable cause
If the condenser fan does not work at all, the condenser fan circuit system may
be defective.DCondenser fan motor fault
DHarness or connector fault
DEngine-ECU fault
NG
Check the harness betweenthe condenser fan relay (LO) and
the ignition switch (IG2) , and repair if necessary.
OK
Check the trouble
symptoms.
NG
Repair
NG
Replace
OK
Check the condenser fan motor. (Refer to P.55-40.)
NGCheck the following connectors:A-06X, C-135, C-102,
C-209, C-210.
OK
Measure at the condenser fan relay (LO) A-06X.
DDisconnect the connector and measure at the harness
side.
DIgnition switch: ON
DVoltage between terminal 2 and body earth.
OK :Battery voltage
NG
Check the harness betweenthe condenser fan motor and body
earth, and repair if necessary.
OK
Check the trouble
symptoms.Repair
NGCheck the following connectors:A-46.
NG
OK
Measure at the condenser fan motor A-46.
DDisconnect the connector and measure at the harness
side.
DContinuity between terminal 2 and body earth
OK :Continuity
NG
OK
Check the trouble
symptoms.RepairNG
Check the following connectors:
C-122, A-43, A-06X.
C-122, C-136, A-06X
Replace the Engine-ECU.
OK
RepairNG
Check the harness betweenthe condenser fan relay (LO) and
the Engine-ECU.

HEATER, AIR CONDITIONER AND VENTILATION-Troubleshooting55-10
Inspection procedure 8
Condenser fan not working only for LO
Probable cause
If the condenser fan does not work only for LO, the condenser fan circuit
system or the condenser fan relay (LO) circuit system may be defective.DCondenser fan motor fault
DCondenser fan relay (LO) fault
DHarness or connector fault
DEngine-ECU fault
NG
Check the harness betweenthe condenser fan relay (LO) and
the ignition switch (IG2), and repair if necessary.
OK
Check the trouble
symptoms.
NG
Repair
NG
Replace
OK
Check the condenser fan motor. (Refer to P.55-40.)
Check the following connectors:A-06X, C-135, C-102,
C-209, C-210.
OK
NG
OK
Check the trouble
symptoms.Repair
Check the following connectors:A-06X.
NG
NG
OK
Check the trouble
symptoms.RepairNG
Check the following connectors:
A-06X, A-43, C-122.
A-06X, C-136, C-122.
Replace the Engine-ECU .
OK
RepairNG
Check the harness betweenthe condenser fan relay (LO) and
the Engine-ECU.
(2) NG
Measure at the condenser fan relay (LO) A-06X.
DDisconnect the connector and measure at the junction box
side.
DIgnition switch: ON
(1) Voltage between terminal 2 and body earth.
OK :Battery voltage
(2) Voltage between terminal 4 and body earth.
OK :Battery voltage(1) NG
NG
Replace
OK
Check the condenser fan relay (LO) (Refer to P.55-23.)
NG
OK
Check the trouble
symptoms.Repair
Check the following connectors:A-06X, A-45.
OK
Check the harness betweenthe condenser fan relay (LO) and
the condenser fan motor, and repair if necessary.
Check the harness betweenthe condenser fan relay (LO) and
the battery, and repair if necessary.

HEATER, AIR CONDITIONER AND VENTILATION-Troubleshooting55-11
Inspection procedure 9
Condenser fan not working only for HI
Probable cause
If the condenser fan does not work only for HI, the condenser fan circuit system
or the condenser fan relay (HI) circuit system may be defective.DCondenser fan motor fault
DCondenser fan relay (HI) fault
DHarness or connector fault
DEngine-ECU fault
NG
Check the harness between the condenser fan relay (HI) and
the Ignition switch (IG2), and repair if necessary.
OK
Check the trouble
symptoms.
NG
Repair
NG
Replace
OK
Check the condenser fan motor. (Refer to P.55-40.)
Check the following connectors:A-07X, C-135, C-102,
C-209, C-210.
OK
NG
Check the harness betweenthe condenser fan relay
(HI) and the fusible link (2)
, and betweenthe condenser fan relay (HI) and the
battery, and repair if necessary.
OK
Check the trouble
symptoms.Repair
Check the following connectors:A-07
NG
NG
OK
Check the trouble
symptoms.RepairNG
Check the following connectors:
A-07X, A-43, C-122.
A-07X, C-136,C-122
Replace the Engine-ECU.
OK
RepairNG
Check the harness betweenthe condenser fan relay (HI) and
the Engine-ECU.
(2) NG
Measure at the condenser fan relay (HI) A-07X.
DDisconnect the connector and measure at the junction box
side.
DIgnition switch: ON
(1) Voltage between terminal 2 and body earth.
OK :Battery voltage
(2) Voltage between terminal 4 and body earth.
OK :Battery voltage(1) NG
NG
Replace
OK
Check the condenser fan relay (HI) . (Refer to P.55-23.)
NG
Check the harness betweenthe condenser fan relay (HI) and
the condenser fan motor, and repair if necessary.
OK
Check the trouble
symptoms.Repair
Check the following connectors:A-07X, A-45.
OK