Mitsubishi Space Star. Manual — part 109
AUTOMATIC TRANSMISSION –
Special Tools
23-3
Tool
Use
Name
Number
MD998330
(including
MD998331)
Oil pressure gauge
(2,942 kPa)
Measurement of oil pressure
MD998332
Adapter
MD998900
Adapter
MB990635 or
MB991113
Steering linkage
puller
Ball joint disconnection
MB991610
Oil filter wrench
Removal and installation of automatic trans-
mission oil filter
GENERAL
SERVICE
TOOL
MZ203827
Engine lifter
Supporting the engine assembly during
removal and installation of the transmission
MB991453
Engine hanger
assembly
Supporting the engine assembly during
removal and installation of the transmission
AUTOMATIC TRANSMISSION –
Troubleshooting <A/T>
23-4
TROUBLESHOOTING <A/T>
STANDARD FLOW OF DIAGNOSIS TROUBLESHOOTING
Inhibitor switch and APS check
(Refer to P.23-45.)
No diagnosis code
output (no abnormality)
Ask about trouble symptoms.
Check the A/T fluid.
NG
Replace the A/T fluid.
OK
Check the trouble symptoms.
Reading of a diagnosis code
(Refer to P.23-4.)
Communication
with the MUT-
II
is not possible
Inspection procedure check by
trouble symptom
Procedure 1 (Refer to P.23-20.)
Diagnosis code output exists
No diagnosis code
output
Road test (Refer to P.23-6.)
Diagnosis code output
exists
Go to Diagnosis Code List
(Refer to P.23-11.)
No diagnosis code
output (abnormality
exists)
Check for the cause.
Not found
NG
NG
Repair
OK
Go to Trouble Symptom List
(Refer to P.23-19.)
Verification test (road test)
Found
END
Erase of a diagnosis code
(Refer to P.23-4.)
Transient malfunction (Refer to
GROUP 00 – Points to Note for
Transient Malfunctions.)
OK
AUTOMATIC TRANSMISSION –
Troubleshooting
23-5
DIAGNOSIS FUNCTION
1. N range lamp
The N range lamp flashes at a frequency of approximately
1 Hz if there is an abnormality in any of the items in the
table below which are related to the A/T system. Check the
diagnosis code output if the N range lamp is flashing at a
frequency of approximately 1 Hz.
N range lamp flashing items
Input shaft speed sensor
Output shaft speed sensor
Each solenoid valve
Out of phase at each shift point
A/T control relay
Caution
If the N range lamp is flashing at a frequency of
approximately 2 Hz (faster than at 1 Hz), it means that
the automatic transmission fluid temperature is too high.
Stop the vehicle in a safe place and wait until the N range
lamp switches off.
2. Method of reading the diagnosis code
Use the MUT-
II
or the N range lamp to take a reading of
the diagnosis codes. (Refer to GROUP 00 – How to Use
Troubleshooting/Inspection Service Points.)
ROAD TEST
Check by the following procedure.
No.
State prior to test
and operation
Test and operation
Judgement value
Check item
Diag-
nosis
code
No.
Inspection
procedure page
if there is an
abnormality
1
Ignition switch:
OFF
Ignition switch
(1) ON
Data list No. 54
Battery voltage [V]
Control relay
54
A/T Control
relay system
(23-18)
AUTOMATIC TRANSMISSION –
Troubleshooting <A/T>
23-6
No.
Inspection
procedure page
if there is an
abnormality
Diag-
nosis
code
No.
Check item
Judgement value
Test and operation
State prior to test
and operation
2
Ignition switch:
ON
Engine: Stopped
Selector lever
Selector lever
position
(1) P, (2) R,
(3) N, (4) D
Data list No. 61
(1) P, (2) R, (3)N,
(4) D
Inhibitor switch
–
Inhibitor switch
system (23-29)
Selector lever
position: P
Selector lever
position
(1) D (1st gear)
(2) Selector sports
mode (1st
gear)
(3) Upshift and
hold the selec-
tor lever (2nd
gear)
(4) Downshift and
hold the selec-
tor lever (1st
gear)
Data list
No.67 No.68 No.69
(1) OFF OFF OFF
(2) ON OFF OFF
(3) ON ON OFF
(4) ON OFF ON
Shift indicator lamp
(1) D and 1
illuminate
(2) Only 1
illuminates
(3) Only 2
illuminates
(4) Only 1
illuminates
Select switch
Upshift switch
Downshift
switch
–
Shift switch
assembly sys-
tem (23-29)
Accelerator pedal
(1) Released
(2) Half depressed
(3) Depressed
Data list No. 11
(1) 400 – 1,000 mV
(2) Gradually rises
from (1)
(3) 4,500 – 5,000
mV
Accelerator
pedal position
sensor
11
12
14
Accelerator
pedal position
sensor system
(23-12)
Data list No. 25
(1) OFF
(2) ON
Wide open
throttle switch
25
Wide open
throttle switch
system (23-14)
Brake pedal
(1) Depressed
(2) Released
Data list No. 26
(1) ON
(2) OFF
Stop lamp
switch
26
Stop lamp switch
system (23-15)
3
Ignition switch:
ST
Engine: Stopped
Starting test with
lever P or N range
Starting should be
possible
Starting
possible or
impossible
–
Starting
impossible
(23-20)
4
Warming up
Drive for 15
minutes or more so
that the A/T fluid
temperature
becomes 70 –
80
C.
Data list No. 15
Gradually rises to
70 – 80
C
A/T fluid
temperature
sensor
15
A/T fluid
temperature
sensor system
(23-12)
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