1997 MITSUBISHI TRITON steering

MPI ± Troubleshooting13A-50
INSPECTION PROCEDURE 39
MUT-II: Engine stalling inspection when the engine is warmed up and idling.
MUT-II Data list
26 Idle position switch (Refer to P.13A-57.)NGCheck the idle position switch system.
(Refer to P.13A-40, INSPECTION PROCEDURE 25.)
OK
MUT-II Data list
13 Intake air temperature sensor (Refer to P.13A-57.)NGCheck the intake air sensor system. (Refer to P.13A-12, INSPEC-
TION PROCEDURE FOR DIAGNOSIS CODE 13.)
OK
MUT-II Data list
25 Barometric pressure sensor (Refer to P.13A-57.)NGCheck the barometric pressure sensor system. (Refer to P.13A-18,
INSPECTION PROCEDURE FOR DIAGNOSIS CODE 25.)
OK
MUT-II Data list
21 Engine coolant temperature sensor (Refer to P.13A-57.)NGCheck the engine coolant temperature sensor system.
(Refer to P.13A-14, INSPECTION PROCEDURE FOR DIAGNOSIS
CODE 21.)
OK
MUT-II Data list
11 Oxygen sensor
OK:Changes between 0 ± 400 mV and 600 ± 1,000 mV during
idlingNGCheck the fuel pressure.
(Refer to P.13A-81.)OK1. Inspect the intake of
air into the air intake
system

Broken intake
manifold gasket

Broken vacuum
hose

PCV valve does
not operate.

Broken air intake
hose
2. Check the injector for
clog.
OK
MUT-II Data list
27 Power steering fluid pressure switch (Refer to P.13A-57.)NGCheck the power steering
fluid pressure switch sys-
tem. (Refer to P.13A-43,
INSPECTION PROCE-
DURE 28.)
OK
MUT-II Data list
28 A/C switch (Refer to P.13A-57.)NGCheck the A/C switch and A/C relay system.
(Refer to P.13A-43, INSPECTION PROCEDURE 29.)
OK
MUT-II Data list
29 Inhibitor switch (Refer to P.13A-57.)NGCheck the ignition switch-ST and inhibitor switch system.
(Refer to P.13A-42, INSPECTION PROCEDURE 27.)
OK
MUT-II Data list
45 ISC servo position (Refer to P.13A-57.)NGAdjust the basic idle speed. (Refer to P.13A-79.)
OK
MUT-II Actuator test
10 EGR control solenoid valve (Refer to P.13A-62.)NGCheck the EGR control solenoid valve system. (Refer to P.13A-46,
INSPECTION PROCEDURE 33.)
OK
MUT-II Data list
11 Oxygen sensor
OK:Changes between 600 ± 1,000 mV during sudden racingNGCheck the oxygen sensor system. (Refer to P.13A-11, INSPECTION
PROCEDURE FOR DIAGNOSIS CODE 11.)

MPI ± Troubleshooting13A-59
Item
No.Reference
page Inspection
procedure
No. Normal condition Inspection contents Inspection
item
22Crank angle
sensor
Engine: Cranking

Tachometer:
ConnectedCompare the engine
speed readings on
the tachometer and
the MUT-II.AccordCode No.
2213A-15

Engine: Idling

Idle position
switch: ONWhen engine
coolant temperature
is ±20C1,275 ± 1,475 r/min
When engine
coolant temperature
is 0C1,225 ± 1,425 r/min
When engine
coolant temperature
is 20C1,100 ± 1,300 r/min
When engine
coolant temperature
is 40C950 ± 1,150 r/min
When engine
coolant temperature
is 80C650 ± 850 r/min
25Barometric
p
ressure
Ignition switch: ONAt altitude of 0 m101 kPaCode No.
25
13A-18
ressure
sensorAt altitude of 600 m95 kPa
25
At altitude of 1,200 m88 kPa
At altitude of 1,800 m81 kPa
26Idle position
switchIgnition switch: ON
Check by operating
acceleratorpedal
Throttle valve:
Set to idle positionONProcedure
No. 2513A-40
accelerator pedal
repeatedlyThrottle valve:
Slightly openOFF*2
27Power
steering fluid
p
ressure
Engine: IdlingSteering wheel
stationaryOFFProcedure
No. 2813A-43
pressure
switchSteering wheel
turningON

MPI ± Troubleshooting13A-65
Terminal No.Normal condition Check condition (Engine condition) Check item
35Oxygen sensor heaterEngine: Idling after warming up0±3V
Engine r/min: 5,000r/min.System voltage
36Engine warning lampIgnition switch: OFF
ON0 ± 3V
9 ± 13V
(After several seconds have
elapsed)
37Power steering fluid
pressure switchEngine: Idling after
warming upWhen steering
wheel is stationarySystem voltage
When steering
wheel is turned0±3V
38Control relay
(Power supply)
Ignition switch: OFFSystem voltage
(Power su ly)
Ignition switch: ON0±3V
45A/C switchEngine: Idle speedTurn the A/C
switch OFF0±3V
Turn the A/C
switch ON (A/C
compressor is
operating)System voltage
51Ignition switch ± STEngine: Cranking8V or more
52Intake air temperature
sensorIgnition switch:
ONWhen intake air
temperature is
0
C3.2 ± 3.8V
When intake air
temperature is
20
C2.3 ± 2.9V
When intake air
temperature is
40
C1.5 ± 2.1V
When intake air
temperature is
80
C0.4 ± 1.0V
56Oxygen sensorEngine: Running at 2,500 r/min after
warmed up (Check using a digital type
voltmeter)0
0.8V
(Changes repeatedly)
60Backup power supplyIgnition switch: OFFSystem voltage
61Sensor impressed
voltageIgnition switch: ON4.5 ± 5.5V
62Ignition switch ± IGIgnition switch: ONSystem voltage

AUTOMATIC TRANSMISSION ±
General Information/
Service Specifications23-2
GENERAL INFORMATION23100010141
ItemsVehicles with 4G63 engineVehicles with 4D56 engine
Transmission modelR4AW2-6V4AW2-6
Type4-speed full automatic4-speed full automatic
Gear ratio1st2.8262.826
2nd1.4931.493
3rd1.0001.000
4th0.7300.688
Reverse2.7032.703
Transfer type±2-speed
Gear ratioHigh±1.000
Low±1.925
Speedometer gear ratio (driven/drive)22/625/8
SERVICE SPECIFICATIONS23100030130
ItemsStandard value
Distance between inner cable stopper and end of outer cable <4G63> mm0 ± 1
Distance between inner cable stopper and end of outer cable <4D56> mm34 ± 35
Lock-up solenoid valve coil resistance (at 20
C) WApprox. 13
Stall speed r/min4G632,100 ± 2,400
4D562,300 ± 2,600
Governor pressure kPa1,000 r/min137 ± 166
2,000 r/min245 ± 284
3,200 r/min402 ± 460
Line pressure kPaAt idle speedD range480 ± 558
R range735 ± 852
At stall speedD range1,019 ± 1,195
R range1,519 ± 1,911
Operation temperature of engine coolant
temperature switch
C
On (continuity)50 + 3
tem erature switch
C
Off (no continuity)43
Clearance between shift lever guide and steering column mm2.4 ± 3.6

ABS <2WD> ± Troubleshooting35B-14
INSPECTION CHART FOR TROUBLE SYMPTOMS35201140142
Get an understanding of the trouble symptoms and check according to the inspection procedure chart.
Trouble symptomsInspection
procedure No.Reference
page
Communication with MUT-II
is notpossible
Communication with all systems is not possible.135B-15
is not ossible.
Communication with ABS only is not possible.235B-15
When the ignition key is turned to ªONº (engine stopped), the ABS warning lamp does
not illuminate.335B-16
After the engine starts, the ABS warning lamp remains illuminated.435B-16
When the ignition key is turned to ªSTARTº, the ABS warning lamp does not illuminate.535B-17
After the ignition key is turned to ªONº, the ABS warning lamp blinks twice, and when
turned to ªSTARTº, it illuminates. When returned to ªONº, the lamp flashes once, and
then switches off.635B-17
Faulty ABS operationUnequal braking power on both sides735B-18
Insufficient braking power
ABS operates under normal braking conditions
ABS operates before vehicle stops under normal
braking conditions
Large brake pedal vibration (Caution 2.)±±
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.

STEERING ± Service Specifications37A-3
SERVICE SPECIFICATIONS37100030021
ItemsStandard valueLimit
Steering wheel free play mmWith engine running±50
With engine stopped10 or less±
Steering angle2WDInner wheel33
55' ± 36
55'±
Outer wheel30
57'±
4WDInner wheel29
40' ± 32
40'±
Outer wheel29
30'
Steering gear backlash mm±0.5
Variation of tie rod end ball joint shaft direction mm±1.5
Tie rod end ball joint starting torque Nm3.0±
Steering gear oil level mm22±
Engine idle speed r/min4G6750 + 100±
4D56750 + 100±
Stationary steering effort N39.2 or less±
Oil pump
p
ressure MPa
Oil pump relief pressure8.3 ± 9.0±
ressure MPa
Pressure under no-load conditions0.8 ± 1.0±
Steering gear retention hydraulic pressure8.3 ± 9.0±
Oil pressure switch operating pressure MPaOFF
ON1.5 ± 2.0±
ON
OFF0.7 ± 1.2±
Mainshaft starting torque Nm0.49 ± 0.78±
Cross-shaft axial play mm0.05 or less±
Mainshaft total starting torque Nm<2WD>0.98 ± 1.47±
<4WD>0.69 ± 1.28±
Pitman arm ball joint starting torque Nm0.5 ± 1.5±
Mainshaft axial play mm0.03 or less±
Backlash between ball groove of rack piston and balls mm±0.05
Idler arm sliding resistance N2WD8.8 ± 30±
4WD2.4 ± 16±

STEERING ± Manual Steering Gear Box37A-20
INSPECTION37100230049
PITMAN ARM DUST COVER CHECK
If there are any cracks in or damage to the dust cover, replace
the pitman arm. If the dust cover is damaged accidentally
during service work, replace the dust cover only. (Refer to
P. 37A-25.)

Service Bulletin List
No. Subject Date
MSB-98E37-002 NEW SERVICE PROCEDURE FOR POWER
STEERING GEARBOX1999-08-15
MSB-00E35-001 CHANGE TO ERASING OF ASB DIAGNOSTICS
CODES2000-05-30
MSB-98E00-503 CORRECTION TO DIAGNOSIS CODE READING
PROCEDURE FOLLOWED WHEN USING
WARNING LAMP1998-12-15
MSB-98E52-502 CORRECTION TO ERASING OF DIAGNOSIS
CODES1999-10-31
ESB-97E52-502 CORRECTION TO CAUTION ON AIR BAG
MODULE AND CLOCK SPRING1997-09-26
MSB-97E52-004 CHANGE IN ATTACHMENT POSITION OF SR
AIR BAG CAUTION LABELS1998-02-15
MSB-99E23-001 ADDITION OF DESCRIPTION OF ABS IDLE-UP
SOLENOID VALVE ABOLISHMENT1999-12-15
MSB-98E27-501 CORRECTION TO THICKNESS OF
DIFFERENTIAL CASE FRICTION DISC1998-11-15
MSB-99E55-503 OMISSION OF DISASSEMBLY / REASSEMBLY
OF A/C COMPRESSOR ASSEMBLY1999-12-15
MSB-97E52-001 ADDITION OF SRS AIR BAG MAINTENANCE
PROCEDURE1997-04-30
MSB-98E33-501REV CORRECTION OF PART NUMBER OF PINION
HEIGHT GAUGE SET’S COMPONENT PART
(REVISED)1999-09-30
MSB-98E33-501 CORRECTION OF PART NUMBER OF PINION
HEIGHT GAUGE SET’S COMPONENT PART1998-11-15
MSB-00E00-003 YEAR MODEL CHANGES FOR 2001 L200 2000-05-30
MSB-97E13-502 MPI TROUBLSHOOTING 1997-06-15