1998 MITSUBISHI LANCER EVOLUTION IV key

ENGINE – Crankshaft Oil Seal11-15
CRANKSHAFT OIL SEAL
REMOVAL AND INSTALLATION
4
3 2
1
5127 – 137
{13.0 – 14.0}
3
Unit: Nm {kgf
m} Engine oil
5
Crankshaft front oil seal removal
steps
Timing belt and timing belt B
(Refer to P.11-21.)
Crank angle sensor
(Refer to GROUP 16.)
1. Crankshaft sprocket B
2. Key
C3. Crankshaft front oil sealCrankshaft rear oil seal removal
steps
Transmission assembly
Clutch cover and disc
AB4. Flywheel
A5. Crankshaft rear oil seal

ENGINE – Timing Belt11-21
TIMING BELT
REMOVAL AND INSTALLATION
1
2
3
4 56
7
8
910
11 1213
14 15
16 171821
22
23
242526
27
28
20
19
11 {1.1}
11 {1.1} 11 {1.1}
88 {9.0}
49 {5.0}
9 {0.9}
48 {4.9}54 {5.5}49 {5.0} 118 {12.0}
9 {0.9}3.5 {0.35}
49 {5.0}
45 {4.6}
19 {1.9}30 {3.1} 24 {2.4}24 {2.4}
Unit: Nm {kgf
m}
Removal steps
1. Front upper cover
2. Front center cover
3. Front lower cover
4. Bracket

AL
5. Timing belt
K
6. Tensioner pulley
7. Tensioner arm
J
8. Auto tensioner
9. Idle pulley
10. Crankshaft position sensor

BI
11. Oil pump sprocket

CH
12. Crankshaft bolt

D13. Crankshaft sprocket
14. Sensing blade15. Tensioner B

EG
16. Timing belt B

FF
17. Counterbalance shaft sprocket
E
18. Spacer

G19. Crankshaft sprocket B
20. Crankshaft key
D
21. Rocker cover
C
22. Semi-circular packing
B
23. Engine support bracket

HA
24. Camshaft sprocket bolt
25. Camshaft sprocket
26. Timing belt rear right cover
27. Timing belt rear left upper cover
28. Timing belt rear left lower cover

REAR AXLE – Troubleshooting 27-21
5. INSPECTION CHART FOR TROUBLE SYMPTOMS
Trouble symptomInspection
procedure No.Ref. page
AYC warning lamp does not light up when the ignition key is turned to “ON” (engine
stationary).127-21
AYC warning lamp remains lit up after the engine has started.227-22
AYC is inoperative.
Unable to start or accelerate on slippery road surfaces.327-22
Rear tires are noisy during low-speed cornering.
Vehicle skews.427-23
6. INSPECTION PROCEDURE FOR TROUBLE SYMPTOMS
INSPECTION PROCEDURE 1
AYC warning lamp does not light up when the ignition key
is turned to “ON” (engine stationary).
Probable cause
The lamp power supply circuit is probably open-circuited, lamp bulb is out, or the
circuit between AYC warning lamp and AYC-ECU or AYC-ECU itself is defective.
Blown fuse

AYC warning lamp out

Defective harness or connector

Defective AYC-ECU
NG
Check and repair the harness between
ignition switch (IG
2) and AYC warning
lamp.
OK
Check the trouble symptom.
OK
Replace combination meter.
NG
Check the harness between AYC
warning lamp and AYC-ECU.NG
Repair
OK
Check the trouble symptom.OK
Replace AYC-ECU.
OK
Check the following connectors:
B-96, B-94, B-08NG
Repair
OK
Measure at B-96 AYC-ECU connector.

Disconnect the connector and
measure at the harness side.

Ignition switch: ON

Warning lamp when 36 is grounded
to body
OK:Lit upNGCheck the lamp bulb.NG
Replace
Measure at B-08 combination meter
connector.

Disconnect the connector and
measure at the harness side.

Ignition switch: ON

Voltage across 48 and body ground
OK:Battery voltageNGCheck the following connectors:
B-08, B-74, B-76NG
Repair

ABS – Troubleshooting35B-11
3. INSPECTION CHART FOR TROUBLE SYMPTOMS
Get an understanding of the trouble symptoms and check according to the inspection procedure chart.
Trouble symptomsInspection pro-
cedure No.Reference page
When the ignition key is turned to “ON” (engine stopped), the ABS warning lamp
does not illuminate.135B-12
Even after the engine is started, the ABS warning lamp remains illuminated.235B-13
After the ignition key is turned to “ON”, the ABS warning lamp blinks twice, and
when turned to “START”, it illuminates. When returned to “ON”, the lamp
flashes once, and then switches off.335B-13
When the ignition key is turned to “START”, the ABS warning lamp does not
illuminate.435B-14
Brake operation is abnormal535B-14
Caution
(1) If steering movements are made when driving at high speed, or when driving on road surfaces
with low frictional resistance, or when passing over bumps, the ABS may operate even though
sudden braking is not being applied. Because of this, when getting information from the customer,
check if the problem occurred while driving under such conditions as these.
(2) During ABS operation, the brake pedal may vibrate or may not be able to be depressed. Such
phenomena are due to intermittent changes in hydraulic pressure inside the brake line to prevent
the wheels from locking and is not an abnormality.

ABS – Troubleshooting35B-12
4. INSPECTION PROCEDURE FOR TROUBLE SYMPTOMS
INSPECTION PROCEDURE 1
When the ignition key is turned to “ON” (engine stopped),
the ABS warning lamp does not illuminate.
Probable cause
The ABS-ECU turns the valve relay ON → OFF → ON for initial checking when
it is powered ON. Accordingly, the ABS warning lamp illuminates twice even if the
circuit between the ABS warning lamp and ABS-ECU is faulty.
The cause may be an open circuit in the lamp power supply circuit, a blown lamp,
an open circuit between the ABS warning lamp and ABS-ECU or between the ABS
warning lamp and the valve relay.
Blown fuse

Burn out ABS warning lamp bulb

Malfunction of wiring harness or connector
OK
Check the trouble symptom.NGReplace the combination meter.
OK
Check the following connectors:
B-08, B-09NG
Repair
OK
Check the trouble symptom.NGCheck the harness wire, and repair
if necessary.

Between ignition switch and ABS
warning lamp
OK
Check the motor for operation.NGCheck the harness wire, and repair
if necessary.

Between ABS warning lamp and
ABS-ECU

Between ABS warning lamp and
valve relay
OK
Check the following connectors:
A-76, B-09, B-52NG
Repair
OK
Measure at the combination meter con-
nector B-09.

Disconnect the connector, and
measure at the combination meter
side connector.

Ignition switch: ON

ABS warning lamp condition when
terminal 12 is grounded.
OK:IlluminatesNGCheck whether the ABS warning lamp
bulb is burnt out.NG
OK
Measure at the combination meter con-
nector B-08.

Disconnect the connector and
measure at the harness side
connector.

Ignition switch: ON

Voltage between 42 and body
ground
OK:Battery voltageNGCheck the following connectors:
B-08, B-75, B-76NG
Repair
Fuse check
General-purpose fuse No.4NGReplace fuse after eliminating the
cause.
Replace the ABS warning lamp bulb.

ABS – Troubleshooting35B-13
INSPECTION PROCEDURE 2
Even after the engine is started, the ABS warning lamp
remains illuminated.
Probable cause
The cause is probably a short-circuit in the ABS warning lamp illumination circuit.
Malfunction of combination meter

Malfunction of ABS-ECU

Malfunction of wiring harness (short circuit)
NOTE
This trouble symptom is limited to cases where ABS-ECU power supply is normal and the diagnosis
code is a normal diagnosis code.
NO
Check the harness wire, and repair if necessary.

Between ABS warning lamp and ABS-ECU

Between ABS warning lamp relay and valve relay
NO

Disconnect the ABS-ECU connector B-25.

Disconnect the valve relay connector A-76.

Ignition switch: ON

Does the ABS warning lamp go off?YESReplace the ABS-ECU.
Does the ABS warning lamp stay illuminated when the connector
B-52 is disconnected and the ignition switch is turned to ON?YESReplace the combination meter.
INSPECTION PROCEDURE 3
After the ignition key is turned to “ON”, the ABS warning
lamp blinks once, and when turned to “START”, it
illuminates. When returned to “ON”, the lamp flashes
once, and then switches off.
Probable cause
The ABS-ECU causes the ABS warning lamp to illuminate during the initial check.
During the initial check, the valve relay turns from off to on, off and back to on again.
If there is an open circuit in the harness between the ABS-ECU and the ABS warning
lamp, the lamp will illuminate only when the valve relay is OFF during valve relay
test, etc.
Malfunction of wiring harness or connector

Malfunction of ABS-ECU
OK
Check the trouble symptom.NGCheck the harness between the com-
bination meter and the ABS-ECU, and
repair if necessary.
OK
Check the trouble symptom.NGReplace the ABS-ECU.
OK
Check the following connector:
B-25NG
Repair
Measure at ABS-ECU connector B-25.

Disconnect the connector and
meeasure at the harness side.

Disconnect valve relay connector
A-76.

Ignition switch: ON

Voltage between 50 and body
ground
OK:Battery voltageNGCheck the following connector:
B-25NG
Repair

ABS – Troubleshooting35B-14
INSPECTION PROCEDURE 4
When the ignition key is turned to “START”, the ABS
warning lamp does not illuminate.
Probable cause
The ABS-ECU is powered through IG2 which is turned off when the ignition key
is in START position. The ABS warning lamp is powered through IG1 which is not
turned off even when the ignition key is in START position. So the cause must be
a defective circuit on valve relay side.
Malfunction of wiring harness or connector

Malfunction of valve relay
OK
Check the trouble symptom.NGCheck the harness between the com-
bination meter and valve relay, and
repair if necessary.
OK
Check the motor for operation.NGCheck the harness between the valve
relay and ground, and repair if neces-
sary.
OK
Check the following connector:
A-76NG
Repair
OK
Measure at valve relay connector A-76.

Disconnect the connector and
measure at the harness side.

Disconnect ABS-ECU connector
B-25.

Ignition switch: ON

Voltage between 3 and body
ground
OK:Battery voltageNGCheck the following connectors
and diode:
A-76, B-26NG
Repair
ABS valve relay check.NGReplace the valve relay.
INSPECTION PROCEDURE 5
Brake operation is abnormal
Probable cause
The varies depending on the driving conditions and the road surface conditions, so
problem diagnosis is difficult. However, if a normal diagnosis code is displayed, carry
out the following inspection.
Improper installation of wheel speed sensor

Incorrect sensor harness contact

Foreign material adhering to wheel speed sensor

Malfunction of wheel speed sensor

Malfunction of wheel bearing

Malfunction of hydraulic unit

Malfunction of ABS-ECU
NG
Repair
Hydraulic unit checkOKWheel speed sensor inspection. [Refer to Inspection Procedure
for “when either of diagnosis codes No. 11 to 14 is output” (P.35B-3).]

CHASSIS ELECTRICAL – Ignition SwitchCHASSIS ELECTRICAL – Ignition Switch54-6
IGNITION SWITCH IMMOBILIZER SYSTEM>
SPECIAL TOOL
ToolNumberNameUse
MB991502MUT-II sub
assemblyETACS-ECU input signal checking
TROUBLESHOOTING
DIAGNOSIS FUNCTION
INPUT SIGNAL INSPECTION POINTS WITH ETACS-ECU>
Refer to Group 00 – How to Use Troubleshooting / Inspection
Service Points.
INSPECTION CHART FOR TROUBLE SYMPTOMS
Trouble symptomsInspection
procedureReference page
Communication with
MUTIIis impossible
Key hole illumination lamp remains illuminated.154-7
MUT-II is impossible.
Even if driver’s side door is opened, key hole
illumination lamp does not illuminate.254-7
While key hole illumination lamp is illuminated,
ignition key is turned to the ON position but key hole
illumination lamp does not switch off. (However, it
switch off after 10 seconds.)354-8
Key reminder warning
buzzer systemWhile the key reminder warning buzzer is sounding,
the ignition key is turned to the ON position but the
sound dose not stop. (However, it stops when the
driver’s side door is closed.)354-8
The key reminder warning buzzer dose not stop
sounding even if the key is removed. (However, it
stops when the driver’s side door is closed.)454-9
The key reminder warning buzzer does not sound
ever if the driver’s side door is opened while the key
is still inserted. (However, the ignition key should be
in the OFF position.)554-10
NOTE
If every input signal can not be checked with the MUT-II, a diagnosis circuit system failure is probably
the cause.