check engine MITSUBISHI LANCER 2006 Repair Manual

ON-VEHICLE SERVICE
POWER STEERING37-14
POWER STEERING SYSTEM AIR
BLEEDING
M1372002200330
Perform air bleeding procedure as necessary after
replacing the steering gear or the steering fluid lines.
1. Raise and support the front wheels.
2. Disconnect the ignition coil connectors (Refer to GROUP 16, Ignition Coil
P.16-38 or P.16-39).
CAUTION
Perform air bleeding only while cranking the
engine. If air bleeding is performed while the
engine is running, air could enter the fluid. Dur
-
ing air bleeding, refill the steering fluid supply so
that the level never falls below the "MIN" mark on
the oil reservoir.
3. Turn the steering wheel all the way to the left and
right five or six times wh ile using the starter motor
to crank the engine intermittently several times
(for 15 to 20 seconds).
4. Connect the ignition coil connectors (Refer to GROUP 16, Ignition Coil
P.16-38 or P.16-39).
5. Start the engine (idling).
6. Turn the steering wheel to the left and right until there are no air bubbles in the oil reservoir.
7. Confirm that the fluid is not milky, and that the level is between "MAX" and "MIN" marks.
8. Confirm that there is very little change in the fluid
level when the steering wheel is turned left and
right.
CAUTION
If the fluid level rises suddenly after the engine is
stopped, the air has not been completely bled. If
air bleeding is not complete, there will be abnor
-
mal noises from the pump and the flow-control
valve, and this condition could cause reduce the
life of the power steering components.
ACX01131With engine running With engine stoppedAC
Fluid level change: Within 5 mm
9. Confirm that the change in the fluid level is no more than 5 mm when the engine is stopped and
when it is running.
10.If the change of the fluid level is 5 mm or more,
the air has not been completely bled from the
system. The air bleeding procedure must be
repeated.
OIL PUMP PRESSURE TEST
M1372002300315
ACX01133
Temperature
gauge
Oil reservoir
Adapter
(MB991548)
Oil
pump Adapter
(MB991549)
AB
Shut-off valve
(fully closed)
Pressure
gauge
(MB990662)
1. Disconnect the pressure hose from the oil pump,
and then connect the following special tools.
•Power steering oil pressure gauge (MB990662)
•Power steering oil pressure gauge adapter (pump
side) (MB991548)
•Power steering oil pressure gauge adapter (hose
side) (MB991549)
2. Bleed air, then turn the steering wheel several times while the vehicle is not moving so that the
temperature of the fluid rises to approximately 50
−
60
°C.
3. Start the engine and idle it at 750 ± 100 r/min.
CAUTION
The pressure gauge shut-off valve must not
remain closed for more than 10 seconds.
4. Fully close the shut-off valve of the pressure gauge and measure the oil pump relief pressure
to confirm that it is within the standard value
range. Open it again immediately after checking
the pressure.
Standard value: 8.8 − 9.5 MPa
5. If it is not within the standard value, replace the oil pump.

ON-VEHICLE SERVICE
POWER STEERING37-15
6. Check whether or not the hydraulic pressure is the standard value when no-load conditions are
created by fully opening the shut-off valve of the
pressure gauge.
Standard value: 0.2 − 0.7 MPa
7. If it is not within the standard value, the probable cause is a malfunction of the oil line or steering
gear, so check these parts and repair as
necessary.
8. Turn the steering wheel all the way to the left or right; then check whether or not the retention
hydraulic pressure is the standard value.
Standard value: 8.8 − 9.5 MPa
9. If not the standard value, overhaul the steering gear. Remeasure fluid pressure.
10. Remove the special tools, and then tighten the
pressure hose to the specified torque.
Tightening torque: 57 ± 7 N⋅m
11. Bleed the system (Refer to P.37-14).
POWER STEERING PRESSURE SWITCH
CHECK
M1372007200324
ACX01134 AB
Temperature
gaugeAdapter
(MB991548)
Oil reservoir Oil
pump
Adapter
(MB991549)
Shut-off valve
Pressure gauge
(MB990662)
1. Disco nnect the pre s sure hose from the oil pump ,
an d then con nect the followin g sp ecial too l s.
•Power steering oil pressure gauge (MB990 662)
•Power steering oil pressure gauge ad apter (pump
side) (MB99154
8)
•Power steering oil pressure gaug e a dapte r (ho s e
side) (MB99154
9)
2. Bleed air , and the n turn t he steering wheel several
times while the vehicle is not moving so that the
tempe r atu r e o f th e flu i d rise s to approximately 50
−
60
°C.
3. Th e engine should be idling.
4.Disco nnect the conne ctor fo r the o il pr essure
switch , and p l ace an o h mmeter a t the switch .
5.Gradua lly close the shut-of f valve of the pressure
g auge a nd in crease the hyd r aulic pre ssu re, the n
check wheth e r or no t the h y drau lic pressure that
a c tivates the switch is the st a ndard valu e.
St andard va lue: 1.5 − 2.0 MPa
6.Gradua lly open the shut-of f va lve and re duce the
h y drau lic p r essure; then check whethe r o r n o t the
h y drau lic pressure that de activate s the switch is
th e st and ard va lue.
St andard va lue: 0.7 − 2.0 MPa
7.Remove the special tools, and then tighten the
p r essure hose to the specified torque .
Ti ghte n ing torque: 57 ± 7 N⋅m
8.Bleed the system (Refer to P.37-14).
TIE ROD END BALL JOINT DUST COVER
CHECK
M13720086 0026 2
1.Press th e dust co ver wit h you r fing er to check
whet her the dust cover is cra cke d or da mage d.
2.If the du st cover is cracked o r damaged, repla c e
th e tie rod end .
NOTE: If the dust cover is cra cke d or da mag ed,
th
e ball jo int could be da mage d.
STEERING COLUMN SHAFT ASSEMBL Y
SHOCK ABSORBING MECHANISM
CHECK
M13720135 0009 0
If a collision accid ent occu rs or seve re imp a ct is
applied on
the steering w heel, the collision energy
abso
r bing mechanism ma y h a ve opera t ed. Once the
mechanism
has o perate d , it will b e ino perative e v en
it has
suf f er ed no app a r en t d a mage . De termin e if the
steering colu
mn shaf t can b e reused b y th e following
proce
dure. If the collision en ergy a b sor b ing mecha
-
nism has already operated, rep l ace the steering col-
umn shaft assembly .
If any excessive radial fre e pla y on the steering
wh
eel is fo und with the tilt lever in the lock po sit i on,
always ch
eck the steering shaf t assembly .

POWER STEERING GEAR BOX AND LINKAGE
POWER STEERING37-23
POWER STEERING GEAR BOX AND LINKAGE
REMOVAL AND INSTALLATIONM1372010900237
WARNING
Before removing the steering gear, refer to GROUP 52B, Service Precautions (P.52B-5) and
Air Bag Module and Clock Spring (P.52B-194). Centre the front wheels. Failure to do so may
damage the SRS clock spring and render the SRS system inoperative, risking serious injury.
Pre-removal Operation
•Power Steering Fluid Draining (Refer to P.37-13.)
Post-installation Operation
•Check the dust cover for cracks or damage by pushing it
with your finger.
•Power Steering Fluid Supplying (Refer to P.37-13.)
•Power Steering Fluid Line Bleeding (Refer to P.37-14.)
•Checking Steering Wheel Position with Wheels Straight
Ahead.
•Front Wheel Alignment Adjustment (Refer to GROUP 33,
On-vehicle Service
− Front Wheel Alignment Check and
Adjustment
P.33-6.)
AC304920 AB
57 ± 7 N·m
15 ± 3 N·m
70 ± 10 N·m
7
3
8
5
6
9
10 24
1
12 ± 2 N·m
12 ± 2 N·m

Removal steps
1.Crossmember (Refer to GROUP 32,
Crossmember
P.32-8).
•Engine rear roll stopper bracket (Refer
to GROUP 32, Engine Roll Stopper
and Centermember
P.32-7).
>>A<<2.Joint cover grommet
3.Return hose
4.Return tube
5.O-ring
6.Return tube
7.Eye bolt
8.Pressure hose assembly
9.Clamp
10.Steering gear and linkage
Removal steps (Continued)

CENTRALIZED JUNCTION
CIRCUIT DIAGRAMS90-20
PASSENGER COMPARTMENT
AC207745
(Connected directly to battery positive terminal)
Front of vehicle26
AF
No.Power supply circuitNameRated
capacity (A)Housing
colourLoad circuit
1Ignition switch (IG1)Fuse10RedCapacitor and ignition coil
27.5BrownABS warning lamp, brake warning
lamp, charging warning lamp, check
engine warning lamp, column switch,
combination meter, ETACS-ECU, low
fuel warning lamp, oil pressure
warning lamp, SRS air bag warning
lamp, SRS-ECU and vehicle speed
sensor
37.5BrownA/T control relay, combination meter,
engine-A/T-ECU, ETACS-ECU, input
shaft speed sensor, output shaft
speed sensor, rear combination lamp
and SRS-ECU
4−−−
5Ignition switch (IG2)7.5BrownA/C compressor relay, A/C-ECU,
blower relay, rear window defogger
relay, front-ECU, heated seat relay,
heater control unit and outside/inside
air selection damper control motor
6Rear window
defogger relay7.5BrownRemote controlled mirror
7Ignition switch (ACC)20YellowFront-ECU and windshield wiper
motor
8Ignition switch (IG1)7.5BrownEngine-A/T-ECU, engine-ECU, fuel
pump relay (1) and fuel pump relay (2)
9Ignition switch (ACC)15BlueCigarette lighter
10−−−
117.5BrownAccessory socket relay and Remote
controlled mirror
12Ignition switch (IG2)7.5BrownABS-ECU
13Ignition switch (ACC)−−−
1415BlueETACS-ECU and rear wiper motor