display MITSUBISHI MONTERO 2000 Service Manual PDF
[x] Cancel search | Manufacturer: MITSUBISHI, Model Year: 2000, Model line: MONTERO, Model: MITSUBISHI MONTERO 2000Pages: 1839, PDF Size: 29.19 MB
Page 1508 of 1839
SRS -Troubleshooting52B-8
Code No.Reference
page Diagnosis item
43*1SRS warning lamp drive circuit systemLamp does not illuminate.52B-14
Lamp does not go out off.52B-14
44*1SRS warning lamp drive circuit system52B-14
45Internal circuit system of non-volatile memory (EEPROM) inside SRS-ECU52B-9
51, 52Driver’s air bag module (squib) system52B-9
54, 55Passenger’s air bag module (squib) system52B-9
71*2,72*2, 75, 76Side air bag module (R.H.) (squib) system52B-15
73, 74Side air bag module (R.H.) (squib) system52B-9
79, 93Side impact sensor (L.H.) communication system52B-16
81*2,82*2, 85, 86Side air bag module (L.H.) (squib) system52B-16
83, 84Side air bag module (L.H.) (squib ignition drive circuit) system52B-9
89, 96Side impact sensor (R.H.) communication system52B-17
91*1Side impact sensor (L.H.) power supply circuit system52B-17
92Analog G-sensor system inside side impact sensor52B-17
94*1Side impact sensor (R.H.) power supply circuit52B-18
95Analog G-sensor system inside side impact sensor (R.H.)52B-17
NOTE
1. *1: If the trouble(s) are extinguished, the SRS warning lamp will go out with diagnosis code history
automatically erased.
2. *2: If the vehicle condition return to normal, the diagnosis code will be automatically erased, and
the SRS warning lamp will return to normal.
3. If the vehicle has a discharged battery, it will store the fault codes 41 or 42. When these diagnosis
codes are displayed, check the battery.
INSPECTION PROCEDURE CLASSIFIED BY DIAGNOSIS CODE
Code No.11, 12 or 13 Front impact sensor systemProbable cause
These diagnosis codes are output if there is abnormal resistance between the
input terminals of the front impact sensors inside the SRS-ECU.
The trouble causes for each diagnosis code No. are as follow.DMalfunction of harness or connector
DMalfunction of front impact sensor
DMalfunction of SRS-ECU
Table 1
Code No.Trouble Symptom
11D
Short circuit in front impact sensor or harness
D
Short circuit in front impact sensor harness leading to the vehicle body ground
D
Short circuit in front impact sensor harness leading to the power supply
12D
Open circuit in either left or right front impact sensor or harness
D
Short circuit in front impact sensor harness leading to the power supply
13D
Open circuit in both left and right front impact sensor or harness
D
Short circuit in front impact sensor harness leading to the power supply
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Page 1513 of 1839
SRS -Troubleshooting52B-13
Code No.34 Connector lock systemProbable cause
This diagnosis code is output when the SRS-ECU detects that the SRS-ECU
connector is improperly connected. However, when vehicle condition returns to
normal, this code will be automatically erased, and the SRS warninglampwill go
out.DMalfunction of connector
DMalfunction of SRS-ECU
NG YES
Are SRS-ECU connectors E-111, E-110
Repair
Replace the SRS-ECU.
RepairNOOK
Code No.35 SRS-ECU (deployed air bag) systemProbable cause
This code is displayed after deployment of air bags. If displayed before
deployment, the code indicates malfunction probably present in SRS-ECU.Malfunction of SRS-ECU
Replace the SRS-ECU.
Code No.41 Power circuit system (fuse No.6 circuit)
Code No.42 Power circuit system (fuse No.8 circuit)Probable cause
Code No.41 is displayed if voltage between IG1terminal (SRS-ECU, terminal 16)
and earth is lower than specified for fivesuccessive seconds ormore.
Code No.42 is displayed if voltage between IG
1terminal (SRS-ECU, terminal 13)
and earth is lower than specified for fivesuccessive seconds ormore.
However, when vehicle condition returns to normal, these codes will be
automatically erased, and the SRS warning lampwill go out. If codes No.41 and
42 are displayed together, check the battery first as vehicle may have
discharged battery.
DMalfunction of harness or connector
DMalfunction of SRS-ECU
NGOK
NG NG
OK
Replace the SRS-ECU.
Measure at SRS-ECU connector E-111.
DDisconnect the connector and measure at the harness
side.
DConnect the negative ( - ) battery terminal.
DIgnition switch: ON
DVoltage between terminal 16 and body earth (in case of
code No. 41)
OK: 9 V or more
DVoltage between terminal 13 and body earth (code No.42)
OK: 9 V or moreCheck the following connectors:D-208, D-209, D-210, E-111
Check the trouble symptoms.Repair
Check the harness wire between the SRS-ECU and the
ignition switch IG
1, and repair if necessary.
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Page 1514 of 1839
SRS -Troubleshooting52B-14
Code No.43 SRS warning lamp drive circuit system (Lamp
does not come on.)Probable cause
This diagnosis code is output when aopencircuit is present for5 successive
seconds or more in SRS warninglampdrive circuit. However, the vehicle
condition return to normal condition, this code, if displayed due toopencircuit,
will be automatically erased.DMalfunction of harness or connector
DBlownbulb
DMalfunction of SRS-ECU
DMalfunction of combination meter
NGOK
NG
NGOK
Check the trouble
symptoms.
NG
Repair
Check the harness wires between the SRS-ECU, the
combination meter and the ignition switch IG
1.
OK
Replace the SRS-ECU.
Repair
Repair
OK
Check the following connectors:
L.H. drive vehicles: D-210, D-01, D-02, E-111
R.H. drive vehicles: D-213, D-01, D-02, E-111
SRS warning lampcheck
DConnect the negative ( - ) battery terminal.
DIgnition switch: ON
DDoeslampcome on when SRS-ECU connector E-111 is
disconnected?
OK: Lamp illuminatesNGCheck a burnt-out bulb.
Replace the combina-
tion meter.
Code No.43 SRS warning lamp drive circuit system (Lamp
does not go out.)Probable cause
This diagnosis code is output when a short to earth occurs in the harness
between the SRS warning lamp and theSRS-ECU. However, the vehicle
condition returns to normal condition, this code will be automatically erased, and
SRS warning lampwill go out.DMalfunction of harness or connector
DMalfunction of SRS-ECU
DMalfunction of combination meter
OKNG
NG
RepairNG
NO
Replace the combination meter.
SRS warning lampcheck
DConnect the negative ( - ) battery
terminal.
DIgnition switch: ON
DDoes thelamp go outwhen
combination meter connector
D-02 is disconnected?YESCheck the following connectors:
D-02, E-111Repair
Check the trouble symptoms.
OK
Replace the SRS-ECU.
Check the harness wires between
the SRS-ECU and the combination
meter.
Code No.44 SRS warning lamp drive circuit systemProbable cause
This diagnosis code is output when a short occurs in thelampdrive circuit or a
malfunction of the output transistor inside the SRS-ECU is detected while the
SRS-ECU is monitoring the SRS warninglampdrive circuit.
However, when vehicle condition returns to normal, these codes will be
automatically erased, and the SRS warning lampwill go out.DMalfunction of harness or connector
DMalfunction of SRS-ECU
Check the SRS warninglampdrive circuit system.
(Refer to P.52B-14.)OKReplace the SRS-ECU.
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Page 1517 of 1839
SRS -Troubleshooting52B-17
Code No.89, 96 Side impact sensor (R.H.) communication
systemProbable cause
These diagnosis codes are output if communication between the side impact
sensor (R.H.) and the SRS-ECU is not possible (code No.96) or abnormal (code
No.89).DMalfunction of harness or connector
DMalfunction of side impact sensor (R.H.)
DMalfunction of SRS-ECU
OK
Check the trouble symptoms.
NG
Repair
NG
RepairOK
Replace the SRS-ECU.
YES
Replace the side impact sensor (R.H.) mounted passenger’s
side.
MUT-II Self-Diag Code
DSwitch over the right side impact sensor (R.H.) and the
side impact sensor (L.H.).
DConnect the negative ( - ) battery terminal.
DErase diagnosis code memory.
Are code Nos.89 and 96 erased and code Nos.79 and 93
output?NOCheck the following connectors:F-01, E-20, E-110
NG
Check the harness wire between the side impact sensor
(R.H.) and SRS-ECU.
Code No.91 Side impact sensor (L.H.) power supply circuit
systemProbable cause
Power supply voltage of side impact sensor (L.H.) is lower than specified for five
successive seconds ormore.
However, when vehicle condition returns to normal, this code will be
automatically erased, and the SRS warning lampwill go out.DMalfunction of harness or connector
DMalfunction of side impact sensor (L.H.)
DMalfunction of SRS-ECU
Measure at side impact sensor connector F-19.
DDisconnect the connector and measure at the harness
side.
DConnect the negative ( - ) battery terminal.
DIgnition switch: ON
DVoltage between terminal 1 and body earth
OK: 9 V or moreNGCheck the following connectors:F-19, E-21, E-110
OK
Check the trouble symptoms.
NG
Repair
NG
Check the harness wire between the left side impact sensor
and the SRS-ECU.
NG
RepairOK
Replace the SRS-ECU.
OK
Replace side impact sensor (L.H.).
Code No.92, 95 Side impact sensor systemProbable cause
Code No.92 is displayed when malfunction is present inside side impact sensor
(L.H.).
Code No.95 is displayed when malfunction is present inside side impact sensor
(R.H.).
The trouble causes for each diagnosis code No. are as follows.DMalfunction of side impact sensor (L.H.)
(in case of code No.92)
DMalfunction of side impact sensor (R.H.)
(in case of code No.95)
Table 7
Code No.Defective partTrouble Symptom
92Side impact analog G-sensorD
Not working
95D
Having abnormal characteristics
D
Having abnormal output
DReplace the side impact sensor (L.H.) (in case of code No.92)
DReplace the side impact sensor (R.H.) (in case of code No.95)
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Page 1523 of 1839
SRS -Post-collision Diagnosis52B-23
POST-COLLISION DIAGNOSIS
Whether or not the air bags have deployed, check and service
the vehicle after collision as follows:
SRS-ECU MEMORY CHECK
1. Connect the MUT-
IIto the diagnosis connector. (Refer
to GROUP 00 – How to Use Troubleshooting/Inspection
Service Points.)
Caution
Refer to that the ignition switch is LOCK(OFF) when
connecting or disconnecting MUT-II
.
2. Read (and write down) all displayed diagnosis codes.
(Refer to P.52B-7.)
NOTE
If battery power supply has been shut down by the
collision, the MUT-
IIcannot communicate with the
SRS-ECU. Check and, repair if necessary, the instrument
panel wiring harness before the next job.
3. Use the the MUT-
IIto read the data list (how long trouble(s)
have continued and how often memory have been
erased).
Data list
NoService Data ItemApplicability
92Number indication how often the memory is cleared.Maximum time to be stored: 250
93How long problem have lasted (How long it takes
from the occurrence of the problem till the first air bag
squib igniting signal)Maximum time to be stored: 9999 minutes
(approximately 7 days)
94How long problem(s) have lasted (How long it takes
from the first air bag squib igniting signal till now.)
4. Erase the diagnosis codes and after waiting 5 seconds
or more read (and write down) all displayed diagnosis
codes. (Refer to P.52B-7.)
REPAIR PROCEDURE
DEPLOYED DRIVER’S AND FRONT PASSENGER’S AIR
BAGS
1. Replace the following parts with new ones.
DSRS-ECU (Refer to P.52B-30.)
DDriver’s air bag module (Refer to P.52B-32.)
DFront passenger’s air bag module (Refer to P.52B-32.)
2. Check the following parts and replace if malfunction is
found:
DClock spring (Refer to P.52B-32.)
DSteering wheel, steering column and intermediate
joint
(1) Check the wiring harness (built into steering
wheel) and connectors for damage, and terminals
for deformation.
(2) Check the driver’s air bag module for proper
installation to the steering wheel.
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Page 1573 of 1839
54A-3
ON-VEHICLE SERVICE 46......................
Room Lamp Delay-off Time Adjustment
Procedure 46...............................
REAR COMBINATION LAMP 47...........
SPECIAL TOOLS 47...........................
TROUBLESHOOTING 47.......................
REAR COMBINATION LAMP 47................
HIGH-MOUNTED STOP LAMP 48.........
COLUMN SWITCH 48....................
SPECIAL TOOLS 48...........................
COLUMN SWITCH 48..........................
HAZARD WARNING LAMP SWITCH 50....
SPECIAL TOOLS 50...........................
HAZARD WARNING LAMP SWITCH 50.........
HORN 51................................
CIGARETTE LIGHTER 51.................
ACCESSORY SOCKET 51................
RHEOSTAT 52...........................
CLOCK OR CENTER DISPLAY 53........
TROUBLESHOOTING 53.......................
CLOCK OR CENTER DISPLAY 67..............
RADIO/TAPE PLAYER 68.................
TROUBLESHOOTING 68.......................
RADIO AND CD AUTO CHANGER 81..........
FRONT SPEAKERS 82...................
REAR SPEAKERS 82.....................
ANTENNA83 ............................DEFOGGER 86...........................
TROUBLESHOOTING
ON-VEHICLE SERVICE 86.....................
Printed Heater Check 86.....................
Defogger Relay Continuity Check 86...........
DEFOGGER SWITCH 87.......................
SMART WIRING SYSTEM (SWS)
Refer to GROUP 54B ....................
RADIATOR (RADIATOR FAN MOTOR)
Refer to GROUP 14 ......................
AUTOMATIC TRANSMISSION
Refer to GROUP 23 ......................
ANTI-LOCK BRAKE SYSTEM (ABS)
Refer to GROUP 35B ....................
DOOR HANDLE LATCH (DOOR LOCK)
Refer to GROUP 42 ......................
DOOR GLASS-REGULATOR (POWER
WINDOWS)
Refer to GROUP 42 ......................
KEYLESS ENTRY SYSTEM
Refer to GROUP 42 ......................
WINDSHIELD WIPER/WASHER
Refer to GROUP 51 ......................
REAR WIPER/WASHER
Refer to GROUP 51 ......................
SRS AIRBAG Refer to GROUP 52B......
HEATER Refer to GROUP 55.............
AIR CONDITIONER Refer to GROUP 55...
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Page 1624 of 1839
CHASSIS ELECTRICAL -Clock or Center Display54A-54
BEFORE REMOVING THE BATTERY
The Center display has a large amount of data unique to the vehicle in its memory. When the battery
cable is disconnected, that memory is affected as shown in the table below. Accordingly, it is necessary
to make sure that you take notes of important information before disconnecting the battery cable.
FunctionInput function/memoryWhen battery cable is disconnected
Clock set on displayCurrent timeRetains data for approx. 1 hour
Vehicle model setShort (3-door models)/long (5-door
models)Retains data for approx. 1 hour
Brightness set for displayPosition set on displayRetains data for approx. 1 hour
Unit set for trip computerkm or mile, L/100km or mpg or km/L
Average vehicle speed after resetRetains data for approx. 1 hour
Average vehicle speed on displayAverage vehicle speed after resetRetains data for approx. 1 hour
Average fuel consumption on displayAverage fuel consumption after resetRetains data for approx. 1 hour
Cruising range on displayCruising range, fuel economyRetains data for approx. 1 hour
Outside temperature on displayOutside temperature after the ignition
switch is turned to the OFF(LOCK)
position.Retains data for approx. 1 hour
* The outside temperature sensor
is located near the engine.
Therefore, incorrectly high
temperature may be displayed
when the battery cable is
reconnected within one hour.
DIAGNOSIS FUNCTION FOR CENTER DISPLAY
Center display has the following diagnosis function:
FunctionContents
Service functionThere are the following 4 diagnosis modes available
1. Check of vehicle informationThe vehicle, short (3-door models)/long (5-door models) set
2. Check of LCD segmentsThe LCD segments for display available to light on or not
3. Check of sensorsOutside temperature, voltage of fuel gauge unit, system voltage, fuel amount
remains, fuel economy calculated after supply of fuel
4. Check of units connected into
the center displayThe units connected on display
Voltage (%) on terminal for MUT-II
Vehicle speed signal sent by engine-ECU
Oscillating signal
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Page 1630 of 1839
CHASSIS ELECTRICAL -Clock or Center Display54A-60
Terminal
No.Input/
OutputSignal symbolTerminal
voltage (V)Wiring harness
problemTrouble symptom caused by wiring
harness problem
Open
circuitShort
circuit
15Input/
OutputKHi: System
voltage
Lo: 0-1ExistsExistsValues on trip information screen (average
vehicle speed, fuel consumption and
cruising distance) are abnormal. Commu-
nication is impossible between the
engine-ECU and the MUT-II.
16------
17Input/
OutputM-BUSY
(AUDIO)Hi: 4-5
Lo: 0-1ExistsExistsAudio display does not appear. Panel
switch cannot be operated for audio unit.
Nighttime illumination does not appear for
audio unit.
18-SHIELD-GND----
19Input/
OutputM-BUSY
(A/C)Hi: 4-5
Lo: 0-1ExistsExistsA/C display does not appear.
Outside air temperature does not appear
20-SHIELD-GND----
21, 22------
23InputEX-TEMPExistsExistsOutside air temperature does not appear.
24InputILL+Hi: System
voltageExists-Nighttime illumination does not appear for
audio units.
Lo: 0-1
-ExistsBlown multipurpose fuse.
25InputACC (ACCSystem volt-Exists-Screen display does not appear.
power supply)age
-ExistsBlown multipurpose fuse.
26Input+BSystem volt-Exists-Screen display does not appear.
age
-ExistsBlown multipurpose fuse.
27InputVSSHi: System
voltage
Lo: 0-1ExistsExistsAbnormal outside air temperature ap-
pears.
(only diesel-powered vehicles)
28-GND (earth)-Exists-Screen display does not appear.
29, 30------
31-GND-TEMPExistsExistsOutside air temperature does not appear.
32InputILL -ExistsExistsThe display screen can not be dimmed.
33InputFUEL GAUGE-ExistsAbnormal cruising distance appears.
34, 35------
36InputIG1Hi: System
voltageExists-Communication with engine-ECU is im-
possible. Abnormal driving data values
appear.
-ExistsCommunication with engine-ECU is im-
possible. Abnormal driving data values
appear. Blown multipurpose fuse.
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Page 1631 of 1839
CHASSIS ELECTRICAL -Clock or Center Display54A-61
INSPECTION CHART CLASSIFIED BY TROUBLE SYMPTOMS
Related unitTrouble SymptomInspection pro-
cedure No.Reference
page
Malfunction of center
display, related sen-No display appears after the ignition key is turned to the
ACC position.154A-62
sors, and wiring har-
nesses
Outside air temperature does not appear or abnormal
outside air temperature appears.254A-62
Abnormal vehicle speed is displayed on the service
mode.354A-63
Abnormal driving data are displayed:
D
Abnormal average fuel consumption (momentary
fuel consumption) and average vehicle speed
D
Abnormal cruising distance454A-64
Clock runs fast or slow.554A-64
The display screen is dim.654A-65
Air conditioning display does not apper.754A-66
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Page 1632 of 1839
CHASSIS ELECTRICAL -Clock or Center Display54A-62
INSPECTION PROCEDURE 1
No display appears after the ignition key is turn to the ACC position.
OK
Measure voltages between D-03 display connector terminal (25),
(26) voltage and earth.
DIgnition switch: ACC
OK:System voltageNGRepair the fuse and wiring harness.
OK
Measure resistance between D-03 display connector terminal (28)
and earth.
OK:approx. 0
WNGRepair the wiring harness.
OK
Repair the center display unit.
Check the following connector: D-03NGRepair
INSPECTION PROCEDURE 2
Outside air temperature does not appear or abnormal outside air temperature appears.
Check the following connector: D-03NGRepair.
NO
Go to inspection procedure 3.
Check the wiring harness between the
Center Display and the outside air tem-
perature sensor.OKReplace the center display unit.OKEnd
NG
Replace the outside air temperature
sensor.NG
Check the wiring harness between the
center display unit and the outside air
temperature sensor, and replace if nec-
essary.
OK
Is a correct outside air temperature dis-
played in the servicemode?YESIs a correct vehicle speed displayed in
the servicemode?YESEnd (no abnormality).
NO
Select “Check of units connected into
the center display” on the service mode.
Does the symbol “AU” appear?NOGo to inspection procedure 7.
YES
Replace the center display unit.
YES
MUT-
IISelf-Diag code
Is A/C diagnosis code No.13 or 14 set?YESCheck the outside air temperature sen-
sor. (Refer to GROUP 55B.)
NO
Is a correct vehicle speed displayed in
the servicemode?NOGo to inspection procedure 3.
NOTE: It is necessary to drive for a while and get accurate temperature in display if you pass a area
in which temperature is much different. It might show high temperature on display in case it is high
around sensor due to high temperature of engine after battery is exchanged, or a display unit is reinstalled.
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