Indicator MITSUBISHI MONTERO 2000 Service Owner's Manual
Page 930 of 1839
AUTOMATIC TRANSMISSION -Troubleshooting <A/T>23-29
Code No. 34 OD solenoid valve systemProbable cause
If the drive terminal voltage of the OD solenoid valve is 3.0 V or less, it is
judged that there is ashort-circuit oropencircuit in the OD solenoid valve, and
the corresponding code is output.
The transmission will be fixed in 3rd as a fail-safe measure, and the N range
indicator will flash at a rate of 1 Hz.DMalfunction of OD solenoid valve
DMalfunction of harness or connector
DMalfunction of engine-A/T-ECU <6G7>
DMalfunction of A/T-ECU<4M4>
LRefer to the Transmission Workshop Manual.
NO
YES
OK
MUT-
IISelf-Diag Code
DIs code No. 54 output?Code No. 54 - A/T control relay system check
(Refer to P.23-103.)
OK NG
Transient malfunction
(Refer to GROUP 00 - Points to Note for Transient
Malfunctions.)MUT-
IIActuator Test
DNo.4 OD solenoid valve
OK:Sound of operation can be heard
OK
Check the following connectors:<6G7> D-122,<4M4>D-107
OK
NG
NG
Replace the engine-A/T-ECU or A/T-ECU.
Repair
OK
NG
Check the trouble symptoms.
OK
NG
Check the following connectors:E-113, D-12
NG
Repair
Check the harness between the solenoid valve assembly and
the A/T control relay, and repair if necessary.
Check the following connectors:<6G7> D-122, E-113, D-12,
<4M4> D-107, E-113,D-12NG
NG
RepairCheck the following connector:C-04
Replace the OD solenoid valve.
L
OK
Measure at solenoid valve assembly connector C-04.
DDisconnect the connector and measure at the solenoid
valve side.
DResistance between terminals 5 and 9
OK:2.7 - 3.4
W
OK
Measure at engine-A/T-ECU connector D-122 <6G7>, or at
A/T-ECU connector D-107 <4M4>.
DMeasure at the ECU terminals
DIgnition switch: ON
D<6G7> Voltage between terminal 130 and earth
D<4M4> Voltage between terminal 14 and earth
OK:System voltage
DCheck the harness between the solenoid valve assembly
and the engine-A/T-ECU, and repair if necessary. <6G7>
DCheck the harness between the solenoid valve assembly
and the A/T-ECU, and repair if necessary.<4M4>
DCheck the harness between the solenoid valve assembly
and the A/T control relay, and repair if necessary.RepairNG
Measure at solenoid valve assembly connector C-04.
DDisconnect the connector and measure at the harness
side.
DIgnition switch: ON
DVoltage between terminals 9 and earth
OK:System voltage
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Page 931 of 1839
AUTOMATIC TRANSMISSION -Troubleshooting <A/T>23-30
Code No. 35 RED solenoid valve systemProbable cause
If the drive terminal voltage of the RED solenoid valve is 3.0 V or less, it is
judged that there is ashort-circuit oropencircuit in the RED solenoid valve, and
the corresponding code is output.
The transmission will be fixed in 3rd as a fail-safe measure, and the N range
indicator will flash at a rate of 1 Hz.DMalfunction of RED solenoid valve
DMalfunction of harness or connector
DMalfunction of engine-A/T-ECU <6G7>
DMalfunction of A/T-ECU<4M4>
LRefer to the Transmission Workshop Manual.
Repair
NO
YES
OK
MUT-
IISelf-Diag Code
DIs code No. 54 output?Code No. 54 - A/T control relay system check
(Refer to P.23-103.)
OK NG
Transient malfunction
(Refer to GROUP 00 - Points to Note for Transient
Malfunctions.)MUT-
IIActuator Test
DNo.5 RED solenoid valve
OK:Sound of operation can be heard
OK
Check the following connectors:<6G7> D-122,<4M4>D-109
OK
NG
NG
Replace the engine-A/T-ECU or A/T-ECU.
Repair
OK
NG
Check the trouble symptoms.
OK
NG
Check the following connectors:E-113, D-12
NG
Repair
Check the harness between the solenoid valve assembly and
the A/T control relay, and repair if necessary.
Check the following connectors:<6G7> D-122, E-113, D-12,
<4M4> D-109, E-113,D-12NG
NGCheck the following connector:C-04
Replace the RED solenoid valve.
L
OK
Measure at solenoid valve assembly connector C-04.
DDisconnect the connector and measure at the solenoid
valve side.
DResistance between terminals 8 and 10
OK:2.7 - 3.4
W
OK
Measure at engine-A/T-ECU connector D-122 <6G7>, or at
A/T-ECU connector D-109 <4M4>.
DMeasure at the ECU terminals
DIgnition switch: ON
D<6G7> Voltage between terminal 119 and earth
D<4M4> Voltage between terminal 51 and earth
OK:System voltage
DCheck the harness between the solenoid valve assembly
and the engine-A/T-ECU, and repair if necessary. <6G7>
DCheck the harness between the solenoid valve assembly
and the A/T-ECU, and repair if necessary.<4M4>
DCheck the harness between the solenoid valve assembly
and the A/T control relay, and repair if necessary.
RepairNG
Measure at solenoid valve assembly connector C-04.
DDisconnect the connector and measure at the harness
side.
DIgnition switch: ON
DVoltage between terminal 10 and earth
OK:System voltage
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Page 932 of 1839
AUTOMATIC TRANSMISSION -Troubleshooting <A/T>23-31
Code No. 36 DCC solenoid valve systemProbable cause
If the drive terminal voltage of the DCC solenoid valve is 3.0 V or less, it is
judged that there is ashort-circuit oropencircuit in the DCC solenoid valve, and
code No. 36 is output.
The transmission will be fixed in 3rd as a fail-safe measure, and the N range
indicator will flash at a rate of 1 Hz.DMalfunction of DCC solenoid valve
DMalfunction of harness or connector
DMalfunction of engine-A/T-ECU <6G7>
DMalfunction of A/T-ECU<4M4>
LRefer to the Transmission Workshop Manual.
NO
YES
OK
MUT-
IISelf-Diag Code
DIs code No. 54 output?Code No. 54 - A/T control relay system check
(Refer to P.23-103.)
OKNG
Transient malfunction
(Refer to GROUP 00 - Points to Note for Transient
Malfunctions.)MUT-
IIActuator Test
DNo. 6 DCC solenoid valve
OK:Sound of operation can be heard
OK
Check the following connectors:<6G7> D-122,<4M4>D-107
OK
NG
NG
Replace the engine-A/T-ECU or A/T-ECU.
Repair
OK
NG
Check the trouble symptoms.
OK
NG
Check the following connectors:E-113, D-12
NG
Repair
Check the harness between the solenoid valve assembly and
the A/T control relay, and repair if necessary.
Check the following connectors:<6G7> D-122, E-113, D-12,
<4M4> D-107, E-113,D-12NG
NG
RepairCheck the following connector:C-04
Replace the DCC solenoid valve.
L
OK
Measure at solenoid valve assembly connector C-04.
DDisconnect the connector and measure at the solenoid
valve side.
D<4M4>Resistance between terminal 7 and 10
OK:2.7 - 3.4
W
OK
Measure at engine-A/T-ECU connector D-122 <6G7>, or at
A/T-ECU connector D-107 <4M4>.
DMeasure at the ECU terminals.
DIgnition switch: ON
D<6G7> Voltage between terminal 107 and earth
D<4M4> Voltage between terminal 15 and earth
OK:System voltage
DCheck the harness between the solenoid valve assembly
and the engine-A/T-ECU, and repair if necessary. <6G7>
DCheck the harness between the solenoid valve assembly
and the A/T-ECU, and repair if necessary.<4M4>
DCheck the harness between the solenoid valve assembly
and the A/T control relay, and repair if necessary.RepairNG
Measure at solenoid valve assembly connector C-04.
DDisconnect the connector and measure at the harness
side.
DIgnition switch: ON
DVoltage between terminal 10 and earth
OK:System voltage
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Page 946 of 1839
AUTOMATIC TRANSMISSION -Troubleshooting <A/T>23-45
Code No. 54 A/T control relay systemProbable cause
If the A/T control relay voltage is less than 7 V after the ignition switch is turned
to the ON position, it is judged that there is ashort-circuit to earth oropen
circuit in the A/T control relay, and code No. 54 is output.
The transmission will be fixed in 3rd as a fail-safe measure, and the N range
indicator will flash at a rate of 1 Hz.DMalfunction of A/T control relay
DMalfunction of harness or connector
DMalfunction of engine-A/T-ECU <6G7>
DMalfunction of A/T-ECU<4M4>
A/T control relay check
(Refer to P.23-103.)Replace
Transient malfunction
(Refer to GROUP 00 - Points to
Note for Transient Malfunctions.)
OK NG
Check the following connectors:
<6G7> D-120,<4M4>D-109 OK OKNG
Repair OK Repair
Check the following connector:<L.H.
drive vehicles> A-04, <R.H. drive
vehicles> D-145 NG
(1)NG
(2)NG
NG
Measure at engine-A/T-ECU
connector D-120 <6G7>, or at
A/T-ECU connector D-109 <4M4>.
DMeasure at the ECU terminals.
D<6G7> Voltage between terminal
50 and earth
D<4M4> Voltage between terminal
71 and earth
OK:System voltage
Replace the engine-A/T-ECU or
A/T-ECU.NGCheck the trouble symptoms.
OKMUT-
IIService Data
DNo. 54 A/T control relay
OK:System voltage
(3)NG
OK
Measure at A/T control relay
connector D-12.
DDisconnect the relay and
measure at the connector side.
(1) Voltage between terminal 1 and
earth
OK:System voltage
(2) Resistance between terminal 2
and earth
OK:2
Wor less
(3) Voltage between terminal 4 and
earth
(Ignition switch: ON)
OK:System voltage
OK
Check the following connector:D-12Replace NG
Check the harness between the A/T
control relay and the battery.
NG
OKRepair
Check the following connector:D-14
Check the harness between the A/T
control relay and body earth.
Repair OKNG
NG
DCheck the harness between the
A/T control relay and the
engine-A/T-ECU. <6G7>
DCheck the harness between the
A/T control relay and the
A/T-ECU, and repair if necessary.
<4M4>
DCheck the harness between the
A/T control relay and the
engine-A/T-ECU. <6G7>
DCheck the harness between the
A/T control relay and the
A/T-ECU.<4M4>Measure at engine-A/T-ECU
connector D-121 <6G7>, or at
A/T-ECU connector D-107 <4M4>.
DMeasure at the ECU terminals.
DIgnition switch: ON
D<6G7> Voltage between terminals
77, 89 and earth
D<4M4> Voltage between terminals
2, 3 and earth
OK:System voltage
OK
DCheck the harness between the
A/T control relay and the battery.
DCheck the harness between the
A/T control relay and the
engine-A/T-ECU. <6G7>
DCheck the harness between the
A/T control relay and the
A/T-ECU, and repair if necessary.
<4M4> NGCheck the following connectors:
<6G7> D-121,<4M4>D-107OK
NG
Repair
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Page 947 of 1839
AUTOMATIC TRANSMISSION -Troubleshooting <A/T>23-46
Code No. 56 N range lamp systemProbable cause
If the N range signal is OFF after the N range lamp illuminates(ON), it is
judged that there is ashort-circuit to earth in the N range lamp, and code No.
56 is output.DMalfunction of Combination meter
DMalfunction of harness or connector
DMalfunction of engine-A/T-ECU <6G7>
DMalfunction of A/T-ECU<4M4>
OK OK
NG
OK
NG
RepairCheck the following connectors:
<6G7> D-122, E-11,<4M4> E-11,
E-113, D-109
Check the harness between the
combination meter and earth, and
repair if necessary.
OK
OK
Measure at combination meter
connector D-01.
DDisconnect the connector and
measure at the harness side.
DResistance between terminal 57
and earth
OK:2
Wor lessNGNG
RepairCheck the following connector:D-30
OK
Measure at combination meter
connector D-03.
DDisconnect the connector and
measure at the harness side.
DResistance between terminal 3
and earth
OK:No continuity
NG
Repair
OK
NG
Replace the engine-A/T-ECU or
A/T-ECU.
Check the trouble symptoms.
OK
Check the following connectors:
<6G7> D-30, D-122, E-11,<4M4>
D-30, E-11, D-109, E-113
NG
Repair
NG
Replace
NG
Repair
N range indicator valve check
(Refer to GROUP 52A - Instrument
Panel.)
Check the following connectors:
D-01, D-03
DCheck the harness between the
combination meter and the
engine-A/T-ECU, and repair if
necessary. <6G7>
DCheck the harness between the
combination meter and the
A/T-ECU, and repair if necessary.
<4M4>
DCheck the harness between the
combination meter and earth.
DCheck the harness between the
combination meter and the
engine-A/T-ECU. <6G7>
DCheck the harness between the
combination meter and the
A/T-ECU.<4M4>
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Page 964 of 1839
AUTOMATIC TRANSMISSION -Troubleshooting <A/T>23-63
Data
list No.Normal condition Inspection conditions Check item
67Select switchIgnition switch: ON
Engine: Stopped(Data List No. )No.
67No.
68No. 69
Engine: Stopped
Selector lever posi-
tion: DOFFOFFOFF
68Upshift switchSelector lever opera-
tion: Sports mode
selectedONOFFOFF
69Downshift switchSelector lever opera-
tion: Lever moved to
upshift position and
heldONONOFF
Selector lever opera-
tion: Lever moved to
downshift position
and heldONOFFON
73Target effective en-
gine pressure
<6G7>Engine: Idling
Selector lever posi-
tion: NAccelerator pedal:
fully closed to de-
pressedData changes.
754LLc switchIgnition switch: ON
Engine: StoppedTransfer lever posi-
tion: 4LLcON
Transfer lever posi-
tion:
Other than the aboveOFF
76Theoretical effec-
tive engine pres-
sure
<4M4>Engine: Idling
Selector lever posi-
tion: NAccelerator pedal:
fully closed to de-
pressedData changes.
ACTUATOR TEST TABLE
Item No.Check itemTest contentsInspection conditionsNormal condition
1LR solenoid valveThe solenoid valveIgnition switch: ONThe sound of opera-
2UD solenoid valvespecified by the MUT-Selector lever posi-tion should be heard
32nd solenoid valve
IIis driven at 50%
duty for 5 seconds. Notion: P
Engine: Stoppedwhen the solenoid
valve is driven.
4OD solenoid valveother solenoid valvesEngine: Stopped
Throttle (accelerator)
5RED solenoid valve
are energised.Opening angle volt-
6DCC solenoid valveage: Less than 1 V
<6G7>,
71st shift indicator lampThe indicator lamp for
<6G7>,
less than 1.2 V <4M4>
The shift indicator
82nd shift indicator lampthe shift stage speci-The fail-safe function
should not be operat-lamp illuminates.
93rd shift indicator lamp
fied by the MUT-II
illuminates for 3 sec-should not be operat-
ing.
104th shift indicator lamponds.
115th shift indicator lamp
12A/T control relayThe A/T control relay
turns off for 3 sec-
onds.Data List No. 54
(1) During test: 0 V
(2) Normal: System voltage
(V)
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Page 966 of 1839
AUTOMATIC TRANSMISSION -Troubleshooting <A/T>AUTOMATIC TRANSMISSION -Troubleshooting <A/T>23-65
Ter-
minal
No.Standard value Inspection conditions Check item
1062nd solenoid valveEngine: Idling
Shift range: 2ndSystem voltage
Engine: Idling
Shift range: Park7–9 V
107DCC solenoid valveEngine: Idling
Shift range: 1stSystem voltage
108Inhibitor switch REngine: Idling
Selector lever position: RSystem voltage
Engine: Idling
Shift range: Other than the above0V
109Select switchIgnition switch: ON
Selector lever operation: Sports modeSystem voltage
Ignition switch: ON
Selector lever operation: Other than the above0V
11 0Downshift switchIgnition switch: ON
Selector lever operation: Downshifted in Sports mode
and lever heldSystem voltage
Ignition switch: ON
Selector lever operation: Other than the above0V
11 24LLc switchIgnition switch: ON
Transfer lever position: 4LLcSystem voltage
Ignition switch: ON
Transfer lever position: Other than the above0V
11 5Wide open throttle switchAccelerator pedal: ReleasedSystem voltage
Accelerator pedal: Depressed0V
11 73rd shift indicator lampShift range: 3rdSystem voltage
Shift range: Other than the above0V
11 82nd shift indicator lampShift range: 2ndSystem voltage
Shift range: Other than the above0V
11 9RED solenoid valveEngine: Idling
Shift range: 5thSystem voltage
Engine: Idling
Shift range: Park7-9V
120UD solenoid valveEngine: Idling
Shift range: 1stSystem voltage
Engine: Idling
Shift range: Park7-9V
121Inhibitor switch NIgnition switch: ON
Selector lever position: NSystem voltage
Ignition switch: ON
Selector lever position: Other than the above0V
122Upshift switchIgnition switch: ON
Selector lever operation: Upshifted in Sports mode and
lever heldSystem voltage
Ignition switch: ON
Selector lever operation: Other than the above0V
123Stop lamp switchIgnition switch: ON
Brake pedal DepressedSystem voltage
Ignition switch: ON
Brake pedal Released0V
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Page 968 of 1839
AUTOMATIC TRANSMISSION -Troubleshooting <A/T>23-67
Ter-
minal
No.Standard value Inspection conditions Check item
10A/C compressor load signalA/C switch: OFF0V
A/C switch: ONSystem voltage
11Power supplyIgnition switch: OFF0V
Ignition switch: ONSystem voltage
12EarthAt all times0V
13EarthAt all times0V
14OD solenoid valveEngine: Idling
Shift range: 3rdSystem voltage
Engine: Idling
Shift range: Park7-9V
15DCC solenoid valveEngine: Idling
Shift range: 1stSystem voltage
162nd solenoid valveEngine: Idling
Shift range: 2ndSystem voltage
Engine: Idling
Shift range: Park7-9V
172nd shift indicator lampShift range: 2ndSystem voltage
Shift range: Other than the above0V
184th shift indicator lampShift range: 4thSystem voltage
Shift range: Other than the above0V
24Power supplyIgnition switch: OFF0V
Ignition switch: ONSystem voltage
25EarthAt all times0V
26EarthAt all times0V
31Input shaft speed sensorMeasure between terminals (31) and (43) using an
oscilloscope.
Engine: 2 000 r/min
Shift range: 4thCheck Procedure
using an Oscillo-
scope (Refer to
P.23-69.)
32Output shaft speed sensorMeasure between terminals (32) and (43) using an
oscilloscope.
Engine: 2 000 r/min
Shift range: 4thCheck Procedure
using an Oscillo-
scope (Refer to
P.23-69.)
33Engine speed sensorEngine: Idling2.0 - 2.4 V
38Backup power supplyAt all timesSystem voltage
43Sensor earthAt all times0V
44A/T fluid temperature sensorA/T fluid temperature 20°C3.8 - 4.0 V
A/T fluid temperature 40°C3.2 - 3.4 V
A/T fluid temperature 80°C1.7 - 1.9 V
45Accelerator pedal positionAccelerator pedal: Fully closed (engine stopped)0.985 - 1.085 V
sensor (APS)Accelerator pedal: Fully open (engine stopped)4.0 V or higher
51RED solenoid valveEngine: Idling
Shift range: 5thSystem voltage
Engine: Idling
Shift range: Park7-9V
53Output communication withEngine: IdlingOther than 0 V
engine-ECUSelector lever position: D
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Page 991 of 1839
AUTOMATIC TRANSMISSION -Troubleshooting <SS4
II>23-90
Ter-
minal
No.Check itemInspection conditionsStandard value
1Shift actuatorTransfer shift lever position: 2H®4H5.6 V®11.0 V®
5.6 V
3Shift actuatorTransfer shift lever position: 4H®2H5.6 V®11.0 V®
5.6 V
5Accelerator pedal positionAccelerator pedal: Fully closed (engine stopped)0.985 - 1.085 V
sensor (APS)Accelerator pedal: Fully open (engine stopped)4.0 V or higher
7Front propeller shaft speed
sensorMeasure the voltage between terminals 7 and 18 using
an oscilloscope.
Engine: 2 000 r/min
Shift range: 4thOscilloscope check
procedure (Refer to
P. 23-69 <Wave
Pattern B>.)
9Rear propeller shaft speed
sensorMeasure the voltage between terminals 9 and 18 using
an oscilloscope.
Engine: 2 000 r/min
Shift range: 4thOscilloscope check
procedure (Refer to
P. 23-69 <Wave
Pattern B>.)
11Diagnosis outputWhen normal (no diagnosis codes are output)0 V and 5 V alterna-
tes
13Power supplyIgnition switch: OFF0V
Ignition switch: ONSystem voltage
18Sensor earthAt all times0.5 V or less
20Transfer lever switch 2HTransfer shift lever position: 2HSystem voltage
Transfer shift lever position: Other than the above0V
21Transfer lever switch 4HTransfer shift lever position: 4HSystem voltage
Transfer shift lever position: Other than the above0V
22Transfer lever switch 4HLcTransfer shift lever position: 4HLcSystem voltage
Transfer shift lever position: Other than the above0V
23Transfer lever switch 4LLcTransfer shift lever position: 4LLcSystem voltage
Transfer shift lever position: Other than the above0V
24Diagnosis control––
25EarthAt all times0V
26EarthAt all times0V
31Backup power supplyAt all timesSystem voltage
32Inhibitor switch NSelector lever position: NSystem voltage
Selector lever position: Other than the above0V
33Inhibitor switch PSelector lever position: PSystem voltage
Selector lever position: Other than the above0V
34Stop lamp switchBrake pedal: DepressedSystem voltage
Brake pedal: Released0V
35EarthAt all times0V
37Rear wheel indicator lampOther than during transfer selectionSystem voltage
38Front wheel indicator lampDuring 4WDSystem voltage
39Earth <6G7>At all times0V
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Page 1275 of 1839
ABS <4WD>-Troubleshooting35B-12
<Vehicles with rear differential lock system>
Code No.26 Center differential lock detection switch
Probable cause
Code No.27 Rear differential lock detection switch
On vehicles with rear differential lock system, these codes will be set under the
following conditions:
DThe ABS-ECU detects an open-circuit in the center differential lock detection
switch and the rear differential lock detection switch systems, so no signal is
sent.
DThe vehicle hasbeendriven at 20 km/h or more for five minutes or more
while the center differential lock detection switch is off and the rear
differential lock detection switch is on, and then the vehicle speed decreases
to 2 km/h in that condition.DMalfunction of harness or connector
DMalfunction of the
center differential lock detection
switch
DMalfunction of the
rear differential lock detection
switch
DMalfunction of the
rear differential lock-ECU
DMalfunction of the
ABS-ECU
YES
NG OK
Do the both of the center differential lock indicatorlamp and the
rear differential lock indicatorlamp illuminate normally?YESMeasure at the ABS-ECU connector E-107.
DDisconnect the connector, and measure at the harness side
connector.
DIgnition switch: ON
DVoltage between 33 and body earth
OK:System voltage
NG OK
NO
Does the center differential lock indicatorlamp illuminate normally?
NO
Replace the center differ-
ential lock detection
switch.
Check the following
connector:E-107Check the following
connectors:
D-32<R.H.D.>,
D-124<L.H.D.>, E-13,
E-107
NG
Repair
Repair
Check the trouble symp-
tom
Check the trouble symp-
tomOKNG
NG
Check the harness wire,
and repair if necessary.
DBetween ABS-ECU
and rear differential
lock-ECU
Check the following
connectors:
C-16, E-107, E-113
NG OK
Repair
Check the trouble symp-
tom
NG
Check the harness wire.
DBetween ABS-ECU and center differential lock detection switch
NG
Repair
OK
Check the trouble symp-
tom
Replace the ABS-ECU.
Rear differential lock detection switch check
(Refer to GROUP 27)
NG
OK
Check the following connectors:
D-26, D-32<R.H.D.>, D-124, F-17, G-01, G-13
NG
Repair
OK
Check the trouble symptom
NG
Check the harness wire.
DBetween rear differential lock-ECU and rear differential lock
detection switch
NG
Repair
OK
Check the trouble symptom
NG
Replace the rear differential lock-ECU.
NG
Replace the rear differen-
tial lock detection switch.
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