Automatic transmission MITSUBISHI LANCER 2005 Workshop Manual

GROUP INDEX
00General . . . . . . . . . . . . . . . . . . . . . . . .
11Engine. . . . . . . . . . . . . . . . . . . . . . . . .
12Engine Lubrication . . . . . . . . . . . . . .
13Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . .
14Engine Cooling . . . . . . . . . . . . . . . . .
15Intake and Exhaust . . . . . . . . . . . . . .
16Engine Electrical . . . . . . . . . . . . . . . .
17Engine and Emission Control . . . . .
21Clutch . . . . . . . . . . . . . . . . . . . . . . . . .
22Manual Transmission . . . . . . . . . . . .
23Automatic Transmission. . . . . . . . . .
26Front Axle . . . . . . . . . . . . . . . . . . . . . .
27Rear Axle . . . . . . . . . . . . . . . . . . . . . .
31Wheel and Tyre . . . . . . . . . . . . . . . . .
32Power Plant Mount . . . . . . . . . . . . . .
33Front Suspension . . . . . . . . . . . . . . .
34Rear Suspension . . . . . . . . . . . . . . . .
35Service Brakes . . . . . . . . . . . . . . . . . .
36Parking Brakes . . . . . . . . . . . . . . . . .
37Power Steering . . . . . . . . . . . . . . . . .
42Body . . . . . . . . . . . . . . . . . . . . . . . . . .
51Exterior . . . . . . . . . . . . . . . . . . . . . . . .
52 . . . . . . . . . .
54Chassis Electrical . . . . . . . . . . . . . . .
55 . . . . . . .
70Component Locations. . . . . . . . . . . .
80Configration Diagrams . . . . . . . . . . .
90Circuit Diagrams . . . . . . . . . . . . . . . .

LANCER /
LANCER WAGON
WORKSHOP MANUAL
FOREWORD
This Workshop manual contains procedures for
service mechanics, including removal, disassembly,
inspection, adjustment, reassembly and installation.
Use the following manuals in combination with this
manual as required.
TECHNICAL INFORMATION MANUAL
PYME0302
PYME0302-A
WORKSHOP MANUAL
CHASSIS GROUP PWME0302
BODY REPAIR MANUAL
PBME0302
PBME0302-A
PARTS CATALOGUE
B606K005A_
All information, illustrations and product descriptions
contained in this manual are current as at the time of
publication. We, however, reserve the right to make
changes at any time without prior notice or obligation.
Mitsubishi Motors Corporation May 2004
Heater, Air Conditioner and
Ventilation Interior and Supplemental
Restraint System (SRS)

IGNITION SYSTEM
ENGINE ELECTRICAL16-30
IGNITION SYSTEM
GENERAL INFORMATIONM1163000100294
This system is equipped with two ignition coils (A and
B) with built-in power transistors for the No. 1 and
No. 4 cylinders and the No. 2 and No. 3 cylinders
respectively.
Interruption of the primary current flowing in the
primary side of ignition coil A generates a high
voltage in the secondary side of ignition coil A. The
high voltage thus generated is applied to the spark
plugs of No. 1 and No. 4 cylinders to generate
sparks. At the time that the sparks are generated at
both spark plugs, if one cylinder is at the
compression stroke, the other cylinder is at the
exhaust stroke, so that ignition of the compressed
air/fuel mixture occurs only for the cylinder which is
at the compression stroke.
In the same way, when the primary current flowing in
ignition coil B is interrupted, the high voltage thus
generated is applied to the spark plugs of No. 2 and
No. 3 cylinders.The engine-ECU or engine-A/T-ECU
turns the two power transistors inside the ignition
coils alternately on and off. This causes the primary
currents in the ignition coils to be alternately
interrupted and allowed to flow to fire the cylinders in
the order 1-3-4-2.
The engine-ECU or engine-A/T-ECU
determines which ignition coil should be controlled
by means of the signals from the camshaft position
sensor which is incorporated in the camshaft and
from the crank angle sensor which is incorporated in
the crankshaft. It also detects the crankshaft position
in order to provide ignition at the most appropriate
timing in response to the engine operation
conditions. It also detects the crankshaft position in
order to provide ignition at the most appropriate
timing in response to the engine operation
conditions.
When the engine is cold or operated at high
altitudes, the ignition timing is slightly advanced to
provide optimum performance.
When the automatic transmission shifts gears, the
ignition timing is also retarded in order to reduce
output torque, thereby alleviating shifting shocks.
SYSTEM DIAGRAM
AK101074
Air flow sensor
<4G6> MAP sensor <4G1>
Intake air temperatur
sensor
Engine coolant
temperature sensor
Camshaft position
sensor
Crank angle sensor
Barometric pressure
sonsor <4G6>
Detonatoin sensor
Ignition switch-STEngine-A/T-
ECU Engine-ECU
Ignition coil B
Cylinder No.
23 4
AG
1 Spark plugIgnition coil AIgnition
switch
Battery

23-1
GROUP 23
AUTOMATIC
TRANSMISSION
CONTENTS
AUTOMATIC TRANSMISSION (FF) . . . . . . . . . . . . . . . . . . . . . .23A
AUTOMATIC TRANSMISSION OVERHAUL . . . . . . . . . . . . . . .23B

COMBINATION METER ASSEMBLY
CHASSIS ELECTRICAL54A-38
TECHNICAL DESCRIPTION (COMMENT)
The engine-ECU and its associated components, the
combination meter assembly, the wiring harness, or
the connector(s) may be defective.
TROUBLESHOOTING HINTS
•Malfunction of the vehicle speed sensor
•Malfunction of the engine-ECU
•Malfunction of the combination meter assembly
•The wiring harness or connectors may have
loose, corroded, or damaged terminals, or
terminals pushed back in the connector.
DIAGNOSIS PROCEDURE
STEP 1. MUT-II/III actuator test
(1) Connect the MUT-II/III to the diagnosis connector.(2) Use the MUT-II/III to enter simulated vehicle
speed.
Q: Does the speedometer show that simulated vehicle
speed?
YES :
Go to Step 6.
NO : Go to Step 2.
STEP 2. Check the output shaft speed sensor.
(MUT-II/III diagnosis code)
(1) Connect MUT-II/III to the diagnosis connector.
(2) Turn the ignition switch to the "ON" position.
(3) Read the automatic transmission system
diagnosis code.
Q: Is automatic transmission system diagnosis code
23 set?
YES :
Refer to P.23A-38.
NO : Go to Step 3.
AC304777
Steering shaft
AB
MB991502

AC304950
MB991911
16-PIN
MB991827 MB991824
AB

AC304777
Steering shaft
AB
MB991502

AC304950
MB991911
16-PIN
MB991827 MB991824
AB

ON-VEHICLE SERVICE
HEATER, AIR CONDITIONER AND VENTILATION55-76
FAN CONTROL RELAY CONTINUITY
CHECK
IDLE-UP OPERATION CHECK
M1552001600371
1. Before inspection and adjustment, set vehicle in
the following condition:
•Engine coolant temperature: 80 − 90 °C•Lamps, electric cooling fan and accessories: Set
to OFF
•Transmission: Neutral ("N" or "P" for vehicles with
A/T)
•Steering wheel: Straightforward
2. Check whether or not the idle speed is the
standard value. <1300, 1600> Refer to GROUP
13A, On-vehicle Service − Basic Idle Speed
Adjustment P.13A-387.
<2000> Refer to GROUP 13B, On-vehicle Service
− Basic Idle Speed Adjustment P.13B-324.
Standard value: 750 ± 50 r/min
3. When the A/C is running after turning the A/C
switch to ON, and the blower switch to the 3(MH)
or 4(HI) position, check to be sure that the idle
speed is at the standard value.
Standard value: 850 ± 50 r/min
NOTE: It is not necessary to make an adjustment,
because the idling speed is automatically
adjusted by the ISC system. If, however, a
deviation from the standard value occurs for some
reason, check the ISC system.
CLEAN AIR FILTER REPLACEMENT
PROCEDURE
M1552020100030
1. Remove the glove box (Refer to GROUP 52A,
Instrument Panel P.52A-2).
2. Remove the two screws as shown, and replace
the clean air filter.
3. Install the glove box. Battery voltage Tester
connectionSpecified
condition
Not applied 2 − 4 Open circuit
•Connect
terminal 1 to
the positive
battery
terminal
•Connect
terminal 3 to
the negative
battery
terminal2 − 4 Less than 2
ohms
AC305307
Fan control relay
13
4 2
3 4
1 2
AC
AC305114AB
Air filter
Instrument panel