differential MITSUBISHI MONTERO 2000 Service User Guide

POWER PLANT MOUNT - No.1 Crossmember32-7
No.1 CROSSMEMBER
REMOVAL AND INSTALLATION
Caution
1. Before removing the steering wheel and airbag module assembly, always refer to GROUP 52B
- Service Precautions, Airbag Module and Clock Spring. Also, set the front wheels so that
they are facing straight forward, and remove the ignition key. If you fail to do this, the SRS
clock spring will be damaged, causing the SRS airbag to be inoperative and serious injury.
2. *: Indicates parts which should be initially tightened, and then fully tightened after placing
the vehicle horizontally and loading the full weight of the engine on the vehicle body.
Pre-removal Operation
DUnder Cover Removal
DDrive Shaft Removal
(Refer to GROUP 26.)
DDifferential Carrier and No.2 Crossmember
Assembly Removal (Refer to GROUP 26 -
Freewheel Assembly and Differential Carrier.)
DUpper Arm Removal
(Refer to GROUP 33A.)
DLower Arm Removal
(Refer to GROUP 33A.)
DStabilizer Bar Removal
(Refer to GROUP 33A.)
DEngine Oil Cooler Removal<6G7>
(Refer to GROUP 12.)
DAir Cleaner Removal<4M4>
(Refer to GROUP 15.)
DIntercooler Removal<4M4>
(Refer to GROUP 15.)
DEngine Cover Removal
(Refer to GROUP 11A - Timing Belt.)
DRadiator Removal
(Refer to GROUP 14.)
DPower Steering Fluid Draining
(Refer to GROUP 37A - On - vehicle Service.)Post - installation Operations
DDifferential Carrier and No.2 Crossmember
Assembly Installation (Refer to GROUP 26 -
Freewheel Assembly and Differential Carrier.)
DDrive Shaft Installation
(Refer to GROUP 26.)
DLower Arm Installation
(Refer to GROUP 33A.)
DUpper Arm Installation
(Refer to GROUP 33A.)
DStabilizer Bar Installation
(Refer to GROUP 33A.)
DAir Cleaner Installation<4M4>
(Refer to GROUP 15.)
DIntercooler Installation<4M4>
(Refer to GROUP 15.)
DRadiator Installation
(Refer to GROUP 14.)
DEngine Oil Cooler Installation
(Refer to GROUP 12.)
DPower Steering Fluid Supplying
(Refer to GROUP 37A - On - vehicle Service.)
DPower Steering Fluid Line Bleeding
(Refer to GROUP 37A - On - vehicle Service.)
DPress the dust cover with a finger tocheck whether
the dust cover is cracked or damaged.
DChecking Steering Wheel Position with Wheels
StraightAhead
DFront Wheel AlignmentCheck and Adjustment
(Refer to GROUP 37A - On - vehicle Service.)
DUnder Cover Installation
DEngine Cover Installation
(Refer to GROUP 11A - Timing Belt.)


www.WorkshopManuals.co.uk


Purchased from www.WorkshopManuals.co.uk

ABS <4WD> -Troubleshooting35B-7
INSPECTION CHART FOR DIAGNOSIS CODES
Diagnosis code
No.Diagnosis itemReference page
11Wheel speed sensor (FR) system (open circuit or short - circuit)35B-8
12Wheel speed sensor (FL) system (open circuit or short - circuit)35B-8
13Wheel speed sensor (RR) system (open circuit or short - circuit)35B-8
14Wheel speed sensor (RL) system (open circuit or short - circuit)35B-8
15Wheel speed sensor system (output signal abnormality)35B-9
16ABS-ECU or valve relay power supply system (abnormal voltage
drop or rise)35B-10
21Wheel speed sensor (FR) system35B-8
22Wheel speed sensor (FL) system35B-8
23Wheel speed sensor (RR) system35B-8
24Wheel speed sensor (RL) system35B-8
26Center differential lock switch system35B-11, 12
27Rear differential lock switch system35B-11, 12
32G sensor system35B-13
33Stop lamp switch system35B-14
41Control solenoid valve (FR)
systemIf there is no response to the
solenoid valve drive signal35B-15
42Control solenoid valve (FL)
systemcorresponding to each respec-
tive item
43Control solenoid valve (RR)
system
44Control solenoid valve (RL)
system
45Changeover solenoid valve
(FR) system
46Changeover solenoid valve
(FL) system
51Valve relay system (ON problem)35B-16
52Valve relay system(OFFproblem)35B-17
55HBB systemCarry out HBB troubleshoot-
ing. (Refer to GROUP 35A.)
63ABS-ECU system35B-32 (ABS-ECU replace-
ment)
NOTE
*: Code No.16 is erased from the memory if the condition returns to normal.


www.WorkshopManuals.co.uk


Purchased from www.WorkshopManuals.co.uk

ABS <4WD> -Troubleshooting35B-11

Code No. 26 Center differential lock switch system
Probable cause
Code No. 27 Rear differential lock switch system
The ABS-ECU is designed to accommodate the fitting of a rear differential lock.
Because of this, for vehicles which are notequippedwith a rear differential lock,
system voltage isapplied to terminal(33) of the ABS-ECU instead of the rear
differential lock switch signal. If there is anopencircuit in the lines by which this
system voltage is applied, the ABS-ECU outputs code Nos. 26 and 27.DMalfunction of harness or connector
DMalfunction of the ABS-ECU
NG
OK
Replace the ABS-ECU.
NG
Check the harness wire, and repair if necessary.
DBetween the ignition switch and the ABS-ECU
OK
NG
Repair
Measure at ABS-ECU connector E-107.
DDisconnect the connector and measure at the harness
side.
DIgnition switch: ON
DVoltage between terminal 33 and body earth
OK:System voltage
Check the trouble symptoms.
Check the following connector:D-32, D-124, D-208, D-210,
E-13, E-107, F-17
OK NG
Repair
NG
Check the trouble symptoms.
Check the following connector:E-107


www.WorkshopManuals.co.uk


Purchased from www.WorkshopManuals.co.uk

ABS <4WD>-Troubleshooting35B-12

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,
D-124, 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, 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.


www.WorkshopManuals.co.uk


Purchased from www.WorkshopManuals.co.uk

ABS <4WD> -Troubleshooting35B-22
DATA LIST REFERENCE TABLE
The following ECU input data items can be read using the MUT-II
.
(1) When system is normal
Item
No.Check itemInspection conditionsNormal condi-
tion
11Front - right wheel
speedWhen vehicle is being drivenSpeedometer
display and
12Front - left wheel
speedMUT-IIdisplay
are identical.
13Rear - right wheel
speed
14Rear - left wheel
speed
16System voltageIgnition switch: ON6.5 - 22.3 V
26Center differential
lock switchIgnition switch: ONTransfer selector lever position:
2H, 4HOFF
Transfer selector lever position:
4HLc, 4LLcON
27Rear differential lock
switchIgnition switch: ONOFF
32G sensorD
Ignition switch: ON
D
When vehicle is stationary (level)2.4 - 2.6 V
When vehicle is being driven1.0 - 4.0 V
33Stop lampIgnition switch: ONWhen brake pedal is depressedON
SwitchWhen brake pedal is releasedOFF
(2) When system is interrupted by the ECU
When the diagnosis function has caused the operation of the ABS-ECU to be stopped, the
MUT-II
display data may be different from the actual condition.
ACTUATOR TEST TABLE
The following actuators can be force-driven using the MUT-II
.
NOTE
(1) Actuator tests cannot be carried out when the operation of the ABS-ECU has been stopped by
the fail-safe function.
(2) Actuator tests can only be carried out while the vehicle is stopped.
ACTUATOR TEST SPECIFICATIONS
Item No.Check itemDrive Contents
01FR wheel solenoid valveHBB select solenoid valves and control solenoid valves for the
02FL wheel solenoid valverespective channel
03RR wheel solenoid valve
04RL wheel solenoid valve
27Air bleeding (1)HBB select solenoid valves and control solenoid valve OUT (FR, FL)
28Air bleeding (2)HBB control solenoid valve OUT (RR, RL)


www.WorkshopManuals.co.uk


Purchased from www.WorkshopManuals.co.uk

ABS <4WD> -Troubleshooting35B-25
Termi-
nal
No.Normal condition Inspection conditions Check item
37ABS valve relay outputIgnition
switch: ONWhen system abnormality is
detected and relay is offSystem voltage
When relay is on approx. 1
second after engine starts2 V or less
39Brake warning lamp outputIgnitionWhen lamp is switched off2 V or less
switch: ONWhen lamp is illuminatedSystem voltage
40Control solenoid valve OUT (RL)Ignition switch: ONSystem voltage
41Control solenoid valve OUT(FR)Ignition switch: ONSystem voltage
46Center differential lock switch
input Ignition
switch: ONTransfer selector lever position:
2H, 4HSystem voltage
Transfer selector lever position:
4HLc, 4LLc2 V or less
4WD detection switch input
Ignition
switch: ONTransfer selector lever position:
2HSystem voltage
Transfer selector lever position:
4H2 V or less
47Diagnosis select inputWhen the MUT-IIis connected1 V or less
When the MUT-IIis not connectedApprox. 12 V
48Valve relay monitorIgnition switch: ONSystem voltage
50ABS warning lamp outputIgnitionWhen lamp is switched offSystem voltage
switch: ONWhen lamp is illuminated2 V or less
51Control solenoid valve IN (RL)Ignition switch: ONSystem voltage
52Control solenoid valve IN (FR)Ignition switch: ONSystem voltage


www.WorkshopManuals.co.uk


Purchased from www.WorkshopManuals.co.uk