Mitsubishi Grandis. Manual — part 837
TROUBLESHOOTING <A/T>
AUTOMATIC TRANSMISSION (FF)
23A-15
SHIFT PATTERN
M1231028400211
UPSHIFT PATTERN
9
Selector lever
position: N
(Must be done
on a level and
straight road)
Selector lever
position and vehicle
speed
(1) Select R and
drive at 10 km/h
The ration of data list
No.0001 and
No.0002 should be
the same as the
transmission ratio
when reversing
No shifting 22
Input shaft
speed
sensor
system
23
Output
shaft speed
sensor
system
46
Reverse
without
completion
of shifting
Proced
ure
Pre-test/opera
tion
conditions
Test/operation
Judgment value
Check
item
Diagnosis
code No.
Inspection
procedure
if there is
an
abnormalit
y
AC311757
100
50
0
4.5
4.0
3.0
0.5
1.0
2.0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
100
50
0
150
200
Throttle
opening
voltage (V)
Throttle
Opening (%)
1
2
2
3
3
4
2 3
movement
range
3 4
movement
range
Output shaft speed r/min
Vehicle speed km/h
8,000
AC
TROUBLESHOOTING <A/T>
AUTOMATIC TRANSMISSION (FF)
23A-16
DOWNSHIFT PATTERN
DAMPER CLUTCH CONTROL
M1231021300086
In 4th range
AC311758AB
100
50
0
1,000
2,000
4,000
5,000
3,000
6,000
7,000
100
50
0
150
200
4.5
4.0
3.0
2.0
1.0
0.5
Throttle
opening
voltage (V)
Throttle
opening (%)
Output shaft speed r/min
Vehicle speed km/h
1
2
2
3
3
4
2
3
(Sport mode)
3
4
(Sport mode)
1
2
(Sport mode)
8,000
AC313395AB
4.5
4.0
3.0
2.0
1.0
0.5
100
50
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
0
50
100
150
Damper clutch disengaged
Damper clutch engaged
Throttle
opening
voltage (V)
Throttle
opening (%)
Output shaft speed r/min
Vehicle speed km/h
8,000
200
TROUBLESHOOTING <A/T>
AUTOMATIC TRANSMISSION (FF)
23A-17
In 3rd range
INSPECTION CHART FOR DIAGNOSIS
CODE
M1231007900404
AC313394 AB
4.5
4.0
3.0
2.0
1.0
0.5
100
50
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
0
50
100
150
Damper clutch
disengaged
Damper clutch engaged
Throttle
opening
voltage (V)
Throttle
opening (%)
Output shaft speed r/min
Vehicle speed km/h
8,000
200
A/T
diagnosis
code No.
MPI
diagnosis
code No.
Diagnosis item
Reference page
15
P0710
A/T fluid temperature sensor system
16
21
−
Crank angle sensor system
Refer to GROUP
13A,
Troubleshooting
22
P0715
Input shaft speed sensor system
23
P0720
Output shaft speed sensor system
26
−
Stop lamp switch system
27
P0705
Inhibitor switch system
28
31
P0750
LR solenoid valve system
32
P0755
UD solenoid valve system
33
P0760
2ND solenoid valve system
34
P0765
OD solenoid valve system
36
P0740
DCC solenoid valve system
41
−
1st gear ratio does not meet the specification
42
−
2nd gear ratio does not meet the specification
43
−
3rd gear ratio does not meet the specification
44
−
4th gear ratio does not meet the specification
TROUBLESHOOTING <A/T>
AUTOMATIC TRANSMISSION (FF)
23A-18
NOTE: The MPI diagnostic trouble codes are the codes which are set when item "MPI" is selected on
MUT-III. However, the codes above indicate failure in the automatic transmission.
DIAGNOSTIC TROUBLE CODE
PROCEDURES
Code No.15: A/T fluid temperature sensor system
OPERATION
• The A/T fluid temperature sensor converts the
automatic fluid temperature to voltage, and send
the information to the engine-A/T-ECU.
• The A/T fluid temperature rises, the resistance
decreases. Thus, the sensor output voltage
depends on the automatic fluid temperature. As
the A/T fluid temperature rises, the output voltage
will decrease.
DIAGNOSIS CODE SET CONDITIONS
If the A/T fluid temperature sensor output voltage is
4.5 volts or more after driving for 10 minutes or more,
there is an open circuit in the A/T fluid temperature
sensor and diagnosis code 15 is set.
POSSIBLE CAUSES
• Malfunction of the A/T fluid temperature sensor
• Damaged harness wires and connectors
• Malfunction of the engine-A/T-ECU
46
−
Reverse gear ratio does not meet the specification
52
P0740
DCC solenoid valve system
54
P1751
A/T control relay system
A/T
diagnosis
code No.
MPI
diagnosis
code No.
Diagnosis item
Reference page
A/T fluid temperature sensor system circuit
ENGINE-
A/T-ECU
A/T CONTROL
SOLENOID
VALVE ASSEMBLY
A/T
FLUID
TEMPERATURE
SENSOR
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Gray R : Red P : Pink V : Violet
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст