2000 MITSUBISHI MONTERO manual transmission

GDI -Troubleshooting 13A-107
Item
No.Reference
page Inspection
procedure
No. Normal condition Requirements Check items
25BarometricIgnition switch: ONAltitude: 0 m101 kPaCode No.13A-19
pressure sen-
sor
Altitude: 600 m95 kPa
P0105
Altitude: 1,200 m88 kPa
Altitude: 1,800 m81 kPa
26Accelerator
pedal positionIgnition switch: ON
(Depress and re-Release the accel-
erator pedal.ONProcedure
No.2813A-100
switchlease the accelera-
tor pedal several
times)
Depress the accel-
erator pedal slight-
ly.OFF
27Power steer-
ing fluid pres-Engine: IdlingSteering wheel sta-
tionaryOFFProcedure
No.3013A-102
sure switch
Steering wheel
turningON
28A/C switchEngine: Idling (The
A/C compressor isA/C switch: OFFOFFProcedure
No.3113A-100
A/C compressor is
running when the
A/C switch is on.)
A/C switch: ONON
No.31
31Small lamp
switchEngine: IdlingLighting switch:
OFFOFFProcedure
No.3313A-104
Lighting switch: ONON
34Air flow sensorEngine: After hav-Engine is idlingONCode No.13A-17
reset signaling warmed up
3,000 r/minOFF
P0100
37Volumetric effi-
ciencyDEngine coolant
temperature:Engine is idling20 - 40%--
80 - 95_C
DLamps, electric
cooling fan and2,500 r/min10 - 30%
cooling fan and
all accessories:
OFF
DTransmission:
Neutral
Engine is suddenly
racedVolumetric effi-
ciency increases in
response to racing
38Crank angle
sensorDEngine: Cranking [reading is possible
at 2,000 r/min or less]
DTachometer: ConnectedEngine speeds dis-
played on the
MUT-IIand
tachometer are
identical.--


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GDI -Troubleshooting 13A-108
Item
No.Reference
page Inspection
procedure
No. Normal condition Requirements Check items
41Injector drive
time *2DEngine coolant
temperature:
80 - 95_CIdling0.3 - 0.8 ms*1--
80 - 95_C
DLamps, electric
cooling fan and
all accessories:
2,500 r/min0.4 - 1.0 ms
all accessories:
OFF
DTransmission:
Neutral
Sudden racingIncreases
44Ignition
advanceDEngine: After
warm-upIdling5-20_BTDC *1Code No.
P030013A-53
advancewarm-up
DSet a timing
light.
2,500 r/min15 - 35_BTDC
P0300
49A/C relayEngine: After
warm-up, idlingA/C switch: OFFOFF (compressor
clutch is not oper-
ating)Procedure
No.3113A-102
A/C switch: ONON (compressor
clutch is operating)
59Oxygen sen-
sor (rear)DTransmission:
2nd gear
DDrive with
throttle widely
open3,500 r/min600 - 1,000 mVCode No.
P013613A-31
67Stop lamp
switchIgnition switch: ONBrake pedal: De-
pressedOFFProcedure
No.3213A-103
Brake pedal: Re-
leasedON
68EGR valveDEngine coolant
temperature:
80 - 95_C
DLamps, electricIdling2 - 20 STEPCode No.
P040313A-60
cooling fan and
all accessories:
OFF
DTransmission:
Neutral
2,500 r/min0 - 10 STEP
74Fuel pressure
sensorDEngine coolant
temperature:
80 - 95_C
DLamps, electric
cooling fan and
all accessories:
OFF
DTransmission:
NeutralEngine: Idling4 - 6.9 MPaCode No.
P019013A-36


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GDI -Troubleshooting 13A-113
Terminal
No.Normal condition Check requirements (engine condition) Check item
47Power supplyIgnition switch: ONSystem voltage
59
50Camshaft position sensorEngine: Cranking0.4 - 3.0 V
Engine: Idling0.5 - 2.0 V
51Barometric pressure sensorIgnition switch:Altitude: 0 m3.7 - 4.3 V
ON
Altitude: 1,200 m3.2 - 3.8 V
52Alternator FR terminalDEngine: Warm up, and then idling
DRadiator fan: not operating
DHeadlamp: OFF®ON
DStop lamp: OFF®ON
DRear defogger: OFF®ONVoltage decreases
53Oxygen sensor (rear)DTransmission: 2nd gear
DEngine speed: 3,500 r/min or more
DDriving with the throttle valve widely
open0.6 - 1.0 V
54Power steering fluid
pressure switchEngine: Warm
up, and thenSteering wheel
stationarySystem voltage
idling
Steering wheel
turning0-3V
55Injector driver relayIgnition switch: OFF0 - 0.1 V
Ignition switch: ON0.5 - 1.0 V
56Throttle valve control servoIgnition switch: OFF0 - 0.3 V
relay
Ignition switch: ON0.5 - 1.0 V
57Engine control relayIgnition switch: OFF0-3V
Ignition switch: ONSystem voltage
60Back-up power sourceIgnition switch: OFFSystem voltage
61Air flow sensorEngine: Idling2.2 - 3.2 V
Engine: 2,500 r/min
62Intake air temperature
sensorIgnition switch:
ONIntake air temper-
ature: 0_C3.2 - 3.8 V
Intake air temper-
ature: 20_C2.3 - 2.9 V
Intake air temper-
ature: 40_C1.5 - 2.1 V
Intake air temper-
ature: 80_C0.4 - 1.0 V


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GDI -Troubleshooting 13A-198
DATA LIST REFERENCE TABLE
Caution
When shifting the select lever to D range, the brakes should be applied so that the vehicle does
not move forward.
NOTE
*1: Injector running time indicates the time where the power voltage is 11 V and the cranking speed
is 250 r/min or less. As the engine speed increases and the time passes by, the injector running
time decreases.
*2: There may be occasions of taking the injector running time approximately 10% longer than usual
when a vehicle has not been driven for a long time (mileage is no more than 500 km.)
*3: It is normal that the idle switch turns from ON to OFF when accelerator pedal position sensor (1st
channel) voltage increases by 200 - 600 mV from the idling position. Moreover, adjust the idle switch
and accelerator pedal position sesor if the idle switch keeps turning after the accelerator pedal is
depressed.
Item
No.Inspection
itemInspection contentsNormal conditionInspection
procedure
No.Reference
page
11Oxygen
sensorEngine: After having
warmed up
(Air/fuel mixture is
made leaner whenWhen at 4,000 r/min,
engine is deceler-
ated200 mV or lessCode No.
1113A-131
made leaner when
decelerating, and is
made richer when
racing.)
Race the engine sud-
denly.600 - 1,000 mV
Engine: After having
warmed up
(The oxygen sensor
signal is used to
check the air/fuelIdling
(after six minutes)400 mV or less
600 - 1,000 mV
(changes)
check the air/fuel
mixture ratio, and
control condition by
the engine-
A/T-ECU.)
2,500 r/min
12Air flow sen-DEngine coolantIdling22 - 48 HzCode No.13A-133
sortemperature: 80 -
95
_C
Lamps and all
2,500 r/min60 - 100 Hz
12
DLamps and all
accessories: OFF
DTransmission: P
range
RacingFrequency in-
creases in re-
sponse to racing
13Intake air
temperatureIgnition switch: ON or
with engine runningWhen intake air tem-
perature is - 20_
C-20_
CCode No.
1313A-135
sensor
When intake air tem-
perature is 0_
C0_
C
When intake air is
20_
C20_
C
When intake air is
40_
C40_
C


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GDI -Troubleshooting 13A-200
Item
No.Reference
page Inspection
procedure
No. Normal condition Inspection contents Inspection
item
25BarometricIgnition switch: ONAt altitude of 0 m101 kPaCode No.13A-145
pressure
sensor
At altitude of 600 m95 kPa
25
At altitude of 1,200 m88 kPa
At altitude of 1,800 m81 kPa
26Accelerator
pedal posi-Ignition switch: ON
(Depress and re-Release the acceler-
ator pedal.ONProcedure
No.2813A-192
tion switchlease the accelerator
pedal several times)
Depress the acceler-
ator pedal slightly.OFF
27Power
steering
fluid pres-
sure switchEngine: IdlingWhen steering wheel
is turnedONProcedure
No.3013A-194
28A/C switchEngine: Idling
(The A/C compres-A/C switch: OFFOFFProcedure
No.3113A-194
(The A/C compres-
sor is running when
the A/C switch is on.)
A/C switch: ONON
No.31
31Small lampEngine: IdlingLighting switch: OFFOFFProcedure13A-195
switch
Lighting switch: ONON
No.33
34Air flow sen-Engine: After havingIdlingONCode No.13A-133
sor reset
signalwarmed up
3,000 r/minOFF
12
37VolumetricDEngine coolantIdling20 - 40%--
efficiencytemperature: 85 -
95
_C
Lamps and all
2,500 r/min10 - 30%DLamps and all
accessories: OFF
DTransmission: P
range
Engine is suddenly
racedVolumetric effi-
ciency increases
in response to
racing
38Crank angle
sensorDEngine: Cranking (reading is possible at 2,000
r/min or less)
DTachometer: ConnectedEngine speeds
displayed on the
MUT-IIand
tachometer are
identical.--


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GDI -Troubleshooting 13A-201
Item
No.Reference
page Inspection
procedure
No. Normal condition Inspection contents Inspection
item
41Injector
drive time*1D
Engine: CrankingWhen engine coolant
temperature is 0_
C120 - 160 msCode No.
4113A-147
When engine coolant
temperature is 20_
C70 - 90 ms
When engine coolant
temperature is 80_
C20 - 35 ms
Injector
drive time*2D
Engine coolant
temperature: 85 -
95_
CIdling0.3 - 0.8 ms
95_
C
D
Lamps and all
accessories: OFF
D
Transmission:
2,500 r/min0.4 - 1.0 ms
D
Transmission:
P range
D
Within six minutes
after engine start-
ing
When engine is sud-
denly racedIncreases
44Ignition ad-
vance valueD
Engine: After hav-
ing warmed up
D
Timing lamp is set.
(The timing lamp is
set in order toIdling12 - 28_
BTDCCode No.
4413A-148
set in order to
check actual igni-
tion timing.)
D
Within six minutes
after engine start-
ing
2,500 r/min15 - 35_
BTDC
49A/C relayEngine: After having
warmed up, idlingA/C switch: OFFOFF (compressor
clutch is not oper-
ating)Procedure
No.3113A-194
A/C switch: ONON (compressor
clutch is operat-
ing)
67Stop lamp
switchIgnition switch: ONBrake pedal: De-
pressedOFFProcedure
No.3213A-195
Brake pedal: Re-
leasedON
68EGR valveD
Engine coolant
temperature: 85 -
95_
CIdling2 - 20 STEPProcedure
No.3513A-196
D
Lamps and all
accessories: OFF
D
Transmission: P
range
2,500 r/min0 - 10 STEP
74Fuel pres-
sure sensorD
Engine coolant
temperature: 85 -
95_
CEngine: Cranking2 MPa or moreCode No.
5613A-151
D
Lamps and all
accessories: OFF
D
Transmission: P
range
Engine: Idling4.0 - 6.9 MPa


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GDI -Troubleshooting 13A-202
Item
No.Reference
page Inspection
procedure
No. Normal condition Inspection contents Inspection
item
77Accelerator
pedal posi-Ignition switch: ONRelease the acceler-
ator pedal.985 - 1,085 mVCode No.
7713A-154
tion sensor
(2nd chan-
nel)
Depress the acceler-
ator pedal gradually.Increases in re-
sponse to the
pedal depression
stroke.
Depress the acceler-
ator pedal fully.4,000 mV or more
78Accelerator
pedal posi-Ignition switch: ONRelease the acceler-
ator pedal.985 - 1085 mVCode No.
7813A-156
tion sensor
(1st chan-
nel)
Depress the acceler-
ator pedal gradually.Increases in re-
sponse to the
pedal depression
stroke.
Depress the acceler-
ator pedal fully.4,000 mV or more
79Throttle
positionDEngine: After hav-
ing warmed upRelease the acceler-
ator pedal.400 - 800 mVCode No.
7913A-158
sensor (1st
channel)DIgnition switch: ON
(Engine stopped)
Depress the acceler-
ator pedal gradually.Increases in re-
sponse to the
pedal depression
stroke.
Depress the acceler-
ator pedal fully.4,200 - 4,800 mV
Engine: Idling afterNo load450 - 1,000 mV
warming-up
A/C switch: OFF to
ONIncreases by 100
- 600 mV
Transmission: P to D
rangeIncreases by 0 -
200 mV.
99Combustion
modeEngine: After having
warmed upIdling
(several minutes af-
ter starting)Compression
lean--
2,500 r/minStoichiometric
feedback
Race the engine sud-
denly while the en-
gine is idling.Open loop


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GDI -Troubleshooting/On-vehicle Service13A-7
CHECK AT THE ENGINE-ECU TERMINALS
TERMINAL VOLTAGE CHECK CHART
Engine-A/T-ECU Connector Terminal Arrangement
The terminals below have been changed as the engine-A/T-ECU has been changed. The other terminals
are the same as before.
Terminal No.Check itemCheck requirements (Engine condition)Normal condition
3Oxygen sensor heat-
er(front)
Engine: Idling0-3V
er(front)
Engine: 3,500 r/minSystem voltage
26Oxygen sensor heat-
er(rear)
Engine: Idling0-3V
er(rear)
Engine: 3,500 r/minSystem voltage
71Oxygen sensor (front)Engine: Warmed up, and then hold the engine
speed at 2,500 r/min (Use a digital voltmeter)0 and 0.8 V alternate.
73Oxygen sensor (rear)DTransmission: 2nd gear
DEngine speed: 3,500 r/min or more
DDriving with the throttle valve widely open0.6 - 1.0 V
Engine-A/T-ECU Harness-side Connector Terminal Arrangement
The terminals below have been changed as the engine-A/T-ECU has been changed. The other terminals
are the same as before.
Terminal No.Check itemStandard value, normal condition (check conditions)
3-41Oxygen sensor heater (front)11 - 1 8Ω(at 20_C)
26 - 41Oxygen sensor heater (rear)11 - 1 8Ω(at 20_C)
ON-VEHICLE SERVICE
OXYGEN SENSOR CHECK
On A/T, a dual oxygen sensor has been adopted. Its service
procedure is the same as for the previous M/T.


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