sensor ISUZU TF SERIES 2004 Workshop Manual
[x] Cancel search | Manufacturer: ISUZU, Model Year: 2004, Model line: TF SERIES, Model: ISUZU TF SERIES 2004Pages: 4264, PDF Size: 72.63 MB
Page 3734 of 4264
7A2-54 TRANSMISSION CONTROL SYSTEM (AW30–40LE) (V6 3.5L)
Step Action Value(s) YES NO
4 Measure the resistance of wire by the J39200 DMM.
1. Key “OFF".
2. Disconnect the TCM connector.
3. Connect the output revolution sensor connector.
4. Measure the resistance between the TCM terminal
C95-5 and C95-14
Does the scan tool indicate specified value ? 560680(2
0C) Go to Step 5 Go to Step 6
5
1. Replace the TCM
2. Install the scan tool (TECH2).
3. Make a road running test for the vehicle.
Important:
The replacement TCM must be
programmed. (Refer to SPS for procedure.)
Does the scan tool indicate DTC P0722 ? — Go to Step 7 Go to Step 8
6 Measure the resistance of output revolution sensor by
the J39200 DMM.
1. Key “OFF"
2. Disconnect the output revolution sensor connector.
3. Measure the resistance between terminal output
revolution sensor side connector E81-1 and E81-
2.
Does the scan tool indicate specified ? 560680(2
0
C) Go to Step 9 Go to Step 7
7 Replace the output revolution sensor.
Is the action complete ? — Verify repair —
8 Replace the TCM.
Important:
The replacement TCM must be
programmed. (Refer to SPS for procedure.)
Is the action complete ? — Verify repair —
9 Check the wire between terminal C95-5 and E81-1 or
C95-14 and E81-2.
1. Connect the J39200 DMM to the each the TCM
connector and output revolution sensor.
If the problem found repair as necessary.
Was the found problem ? — Verify repair —
Page 3747 of 4264
TRANSMISSION CONTROL SYSTEM (AW30–40LE) (V6 3.5L) 7A2-67
DTC P1767 (FLASHING CODE 67) ECM CAN Invalid
RTW37AMF000401
Circuit Description
The automatic transmission control system in AW30-
40LE uses high speed CAN bus system. The individual
CAN bus systems are connected via two interfaces and
can exchange information and data. This allows control
modules that are connected to different CAN bus
systems to communicate. Transmission control
modules in the vehicle that require continuous, rapid
communication are connected to the high speed CAN
bus. The automatic transmission is continuously notified
of the current engine load status. Since the automatic
transmission control module has to react immediately to
load status changes, rapid communication is required
between the engine control module and the automatic
transmission control module. The high speed CAN bus
in the AW30-40LE is designed as a two-wire CAN bus
(twisted pair). The wires are shielded and twisted. The
transmission rate is 500K band.
Condition for setting the DTC
The TCM detects invalid signal for 0.18 sec. (After the
TCM leaves a communication start with the ECM fo
r
0.64 sec)
The TCM detects above condition for 2.0 sec
continuously.
Action Taken When The DTC Sets
The line pressure is max.
The TCM judges APS(Accelerator Position Sensor)
angle is 0% at the time of shift operation.
No line pressure control.
No engine torque control.
No lock-up control.
No slope control.
Check Trans ON.
DTC stored.
No squat control.
Page 3754 of 4264
7A2-74 TRANSMISSION CONTROL SYSTEM (AW30–40LE) (V6 3.5L)
DTC U2104 (FLASHING CODE 65) CAN BUSS OFF
RTW37AMF000401
Circuit Description
The automatic transmission control system in AW30-
40LE uses high speed CAN bus system. The individual
CAN bus systems are connected via two interfaces and
can exchange information and data. This allows control
modules that are connected to different CAN bus
systems to communicate. Transmission control
modules in the vehicle that require continuous, rapid
communication are connected to the high speed CAN
bus. The automatic transmission is continuously notified
of the current engine load status. Since the automatic
transmission control module has to react immediately to
load status changes, rapid communication is required
between the engine control module and the automatic
transmission control module. The high speed CAN bus
in the AW30-40LE is designed as a two-wire CAN bus
(twisted pair). The wires are shielded and twisted. The
transmission rate is 500K band.
Condition for setting the DTC
The TCM detects CAN BUS OFF for 0.18 sec (After the
TCM leaves a communucation start with the ECM fo
r
0.64 sec) continously..
Action Taken When The DTC Sets
The throttle pressure is max.
The TCM judges APS(Accelerator Position Sensor)
angle is 0% at the time of shift operation.
No throttle pressure reduction.
No torque reduction.
No lock-up control.
No slope control.
No squat control.
Check Trans ON.
DTC stored.
Engine REV is 7000 rpm.
Coolant tempreature is 80
C.
Page 3757 of 4264
ON-VEHICLE SERVICE (AW30–40LE) 7A3-1
TRANSMISSION
ON-VEHICLE SERVICE (AW30–40LE)
CONTENTS
Service Precaution .................................................
7A3-2
Location of Clutch, Brake, One-Way Clutch
and Solenoid ........................................................
7A3-3
Operation of Clutch, Brake and One-Way
Clutch ....................................................................
7A3-4
Trnasmission Indentification ..............................
7A3-4
Speed Change and Lock-Up Pattern ...............
7A3-5
Overdrive and Lock-Up Operating
Conditions ............................................................
7A3-5
Diagnosis .................................................................
7A3-6
Basic Troubleshooting ........................................
7A3-6
Manual Shifting Test ...........................................
7A3-12
Stall Test ..............................................................
7A3-12
Time Lag Test .....................................................
7A3-13
Hydraulic Test ......................................................
7A3-14
Road Test .............................................................
7A3-15
Shift Pont Chart and Lock-Up Point Chart ..........
7A3-19
Shift Pont Chart ...................................................
7A3-19
Lock-Up Point Chart ...........................................
7A3-20
Transmission Fluid Level and Condition .............
7A3-21
Inspection .............................................................
7A3-21
ATF Replacement ..................................................
7A3-22
Inspection .............................................................
7A3-22
Neutral Start Switch (Mode Switch) .....................
7A3-23
Inspection .............................................................
7A3-23
Removal ...............................................................
7A3-23
Installation ............................................................
7A3-23
Brake Signal ............................................................
7A3-24
Inspection .............................................................
7A3-24
Input and Output Revolution Sensor ....................
7A3-25
Inspection .............................................................
7A3-25
Pattern Select Switch .............................................
7A3-25
Inspection .............................................................
7A3-25
Solenoid ...................................................................
7A3-26
Inspection .............................................................
7A3-26
ATF Temperature Sensor ......................................
7A3-27
Inspection .............................................................
7A3-27
Select Lever ....................................................... 7A3-28 Remove or Disconnect .......................................
7A3-28
Install or Connect .................................................
7A3-29
Shift Cable ......................................................... 7A3-31
Remove or Disconnect .......................................
7A3-31
Install or Connect .................................................
7A3-32
Torque specifications ..........................................
7A3-33
Transmission Control Module (TCM) ...................
7A3-34
Removal ................................................................
7A3-34
Installation .............................................................
7A3-34
Shift Solenoid and Lock-Up Solenoid ...................
7A3-35
Removal ................................................................
7A3-35
Installation .............................................................
7A3-36
Valve Body Assembly and Pressure Control Solenoid .................................................
7A3-37
Removal ................................................................
7A3-37
Installation .............................................................
7A3-39
Rear Oil Seal (Adapter Housing, 4
4) .................
7A3-40
Removal ................................................................
7A3-40
Installation .............................................................
7A3-40
Rear Oil Seal (Extension Housing, 4 2) ..............
7A3-41
Removal ................................................................
7A3-41
Installation .............................................................
7A3-41
Transmission Assembly .........................................
7A3-42
Transmission and Associated Parts .................
7A3-42
Removal ................................................................
7A3-43
Installation .............................................................
7A3-46
Major Components ..............................................
7A3-50
Page 3781 of 4264
ON-VEHICLE SERVICE (AW30 –40LE) 7A3-25
Input and Output Revolution Sensor
Inspection
1. Disconnect the input and output revolution sensor
connector.
2. Use an ohmmeter to measure the resistance between terminals 1 and 2.
Standard resistance
Input revolution sensor: 387 – 473
(at 20
C,
4
2)
, 560
– 680
(at 20
C, 4
4)
Output revolution sensor: 560 – 680
(at 20
C)
F07RY00018
Pattern Select Switch
Inspection
Inspect that there is continuity between each terminals.
RTW37ASH000501
Page 3783 of 4264
ON-VEHICLE SERVICE (AW30 –40LE) 7A3-27
ATF Temperature Sensor
Inspection
1. Disconnect the front side ATF cooler pipe from the
elbow and remove the elbow.
2. Remove the ATF temperature sensor from the transmission case.
3. Place the ATF temperature sensor in a container o
f
ATF.
RUW37ASH004001
4. Measure the resistance between each terminals,
while warming ATF.
Resistance: 0.5 – 30 k
(at 0
C – 120
C)
5. If either of the measured values exceeds the
specified value, replace the ATF temperature
sensor.
Torque: 15 N
m (11 Ib ft)
Page 3799 of 4264
ON-VEHICLE SERVICE (AW30 –40LE) 7A3-43
Removal
NOTE: Before removing transmission and transfer
assembly from vehicle, change the transfer mode to
2WD using the 4WD push button switch on dash panel.
1. Disconnect battery ground cable.
2. Raise and support vehicle with suitable stands.
3. Remove front propeller shaft.(4WD only)
NOTE: Apply alignment marks on the flange at both
front and rear sides.
4. Remove rear propeller shaft.
NOTE: Apply alignment marks on the flange at the
differential side.
401RS023
5. Remove the middle exhaust pipe.
RTW37ASH0001
6. Disconnect the transfer harness connectors and the
clips.(4WD only)
Speed sensor
2W-4W shift actuator
NOTE: Avoid turning the vehicle ignition switch to the
ON position when the 2WD-4WD connector is removed
(battery connected).
If the ignition switch must be turned to the ON position,
the controller must first be removed (memory must be
cleared because the CHECK 4WD INDICATOR will
light).
7. Support transfer case with a transmission jack.(4WD only)
8. Remove the transfer case assembly from the
transmission.(4WD only)
9. Disconnect the shift cable.
10. Remove the fuel pipe clips with the fuel pipes from the brackets and put aside it. Remove the fuel pipe
brakets from the transmission.
P1010010
11. Discinnect the transmission harness connectors
and clips.
12. Remove the oil level gauge and the guide tube.
13. Remove the suspension crossmember.
Page 3805 of 4264
ON-VEHICLE SERVICE (AW30 –40LE) 7A3-49
Tighten transmission transfer bolts as shown in
the figure.(4WD only)
261R300002
20. Connect transfer harness connectors and
clips.(4WD only)
Speed sensor
2W-4W shift actuator
21. Install the middle exhaust pipe.
RTW37ASH0001
22. Install the rear propeller shaft.
Torque: 63 N
m (6.4 kg
m/46 lb ft)
NOTE: Align alignment marks on the flange.
23. Install the center bearing on crossmember.
Torque: 69 N
m (7.0 kg
m/51 lb ft)
24.Install the front propeller shaft.(4WD only)
Torque: 63 N
m (6.4 kg
m/46 lb ft)
NOTE: Align alignment marks on the flange.
401RS023
25. Connect battery ground cable.
Page 3811 of 4264
UNIT REPAIR (AW30–40LE) 7A4–3
Major Components (1)
Major Components (1) and Associated parts
RTW 37A M F00 0601
E nd O FCallo ut
Disassembly steps
1. Remove the torque converter.
2. Remov e the select lev er.
Legend
(1) Torque converter
(2) Select lever
(3) Neutral start switch (Mode switch)
(4) Elbow
(5) Oil temperature sensor
(6) Breather hose
(7) Input revolution sensor(8) Output revolution sensor (44)
(9) Output revolution sensor (42)
(10) Speedometer sensor, speedometer driven gear
and plate (42)
(11) Extension housing (42)
(12) Adapter housing (44)
(13) Transmission assembly
Page 3812 of 4264
7A4–4 UNIT REPAIR (AW30–40LE)
3. Remove the neutral start switch (Mode switch).
Unstake the lock washer.
Remove the nut and bolt, and then remove the
neutral start switch.
Remove the lock washer.
RTW 37BSH00 010 1
4. Remove the two elbows from transmission case.
24 0RY 0 000 1
5. Remove the oil temperature sensor.
6. Remove the breather hose.
7. Remove the Input revolution sensor.
8. Remove the output revolution sensor (44).
9. Remove the output revolution sensor (42).
10. Remove the speedometer sensor, speedometer
driven gear and plate (42).
11. Remove the ex tension housing (42).
12. Remove the adapter housing (44).13. Remove the transmission assembly.
Install special tool to the transmission unit.
Holding fix ture: J–37227
Holding fix ture base: J–3289–20
RUW3 7A SH00 3001