fuel ISUZU KB P190 2007 Workshop Repair Manual

TRANSMISSION CONTROL SYSTEM (AW30–40LE) 7A2-105

DTC P2769 or P2770 (Flash Code 33)




RTW 77ALF001501

Circuit Description
The lock-up solenoid SL of the torque converter clutch
(TCC) controls the lock-up clutch by a signal according
to the lock-up position judgment of the TCM when the
vehicle runs.
This function can improve the fuel consumption to
almost the same extent as the manual transmission.
The lock-up solenoid SL is put into B+ by the TCM, so
that the solenoid is actuated with the result of lock-up.

Condition For Running The DTC
All of the following conditions are met.
(1) All of the following conditions are met for 2 seconds or more continuously.
• The supply voltage is more than 10.2 volts and
less than 15.5 volts.
(2) Not emergency mode.
(3) 0.025 seconds or more passed after the state o
f
energized solenoid is changed.


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ISUZU KB P190 2007

7A3-32 ON-VEHICLE SERVICE (AW30–40LE)
Shift Solenoid and Lock-Up Solenoid
Removal
Preparation:
• Disconnect negative (–) battery cable.
• Drain the fluid.
Refer to ATF REPLACEMENT in this section.
1. Remove oil lever gage and oil filler tube.
2. Support transfer case (4
×4) or rear cover (4×2)
with a transmission jack.
3. Remove engine rear mounting nuts.


F07RW 008
4. Remove fule pipe heat protector on tansmission
corssmenber.
5. Remove fuel pipe from the crossmenber.
6. Remove transmission crossmenber.
7. Remove the nineteen bolts.
8. Remove oil pan, using seal cutter 5-8840-2153-0.





RUW 37ASH002901
NOTE: Do not turn over the transmission as this will
contaminate the valve body with foreign materials in the
bottom of the oil pan.
Remove oil pan by lifting the transmission case.
Oil pan seal cutter: 5-8840-2153-0
Examine particles in oil pan
Remove the magnet and use it to collect any steel
chips.
Look carefully at the chips and particles in the oil
pan and on the magnet to anticipate what type o
f
wear you will find in the transmission:
Steel (magnetic) .................. bearing, gear and
clutch plate wear
Brass (non-magnetic).......... bushing wear




240RY00008
9. Remove the oil strainer assembly.




244RY00003

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ISUZU KB P190 2007

ON-VEHICLE SERVICE (AW30–40LE) 7A3-39
Transmission Assembly
Transmission and Associated Parts




1
3
4
5
6
7
10
11
2
9
8

RTW 77ALF000801
Legend (6) Transmission Crossmember
(1) Front Propeller Shaft (4 ×4 only) (7) Shift Cable
(2) ATF Pipe (8) Fuel Pipe Bracket
(3) Transmission Harness (9) Oil Level Gauge And Upper Guide Tube
(4) Rear Propeller Shaft (10) Transfer Assembly (4×4 only)
(5) Transmission Mount (11) Transmission Assembly


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ISUZU KB P190 2007

ON-VEHICLE SERVICE (AW30–40LE) 7A3-41
8. Remove the transfer assembly. (4×4 only)
9. Disconnect the input sensor connector (1), ATF temperature sensor connector (3), neutral start
(mode) switch connector (4), output senso
r
connector (5) and clip (2).




RTW 77ASH002101



RTW 77ASH002201






RTW 77ASH002301
10. Disconnect the fuel pipe clip (1).




1

RTW 77ASH001301


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7A3-42 ON-VEHICLE SERVICE (AW30–40LE)
11.Disconnect the shift cable (1) from the
transmission side.




RTW 77ASH002801
12.Disconnect the transmission harness connector (2)
and two clips (1).




2
1
1


RTW 77ASH001401
13.Remove the oil level gauge and upper guide tube.

14.Remove the fuel pipe bracket bolt (1) on clutch
housing lower left side.





RTW 77ASH002401
15.Disconnect the shift cable bracket on the
transmission side.
16.Disconnect the starter assembly with shift cable bracket.
17.Remove the ATF pipe bolt (1).




RTW 77ASH002501
18.Disconnect two ATF pipes.

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ON-VEHICLE SERVICE (AW30–40LE) 7A3-43
19.Remove the under cover (1).





RTW 77ASH002601
20.Remove the torque converter bolts by turning the
crank shaft.
21.Remove the four transmission bolts.
22.Disconnect the two fuel pipe clips (1) on the transmission crossmember left side.




RTW 77ASH002701
23.Support transmission assembly with a
transmission jack.





RTW 77BSH000401
24.Support engine assembly with a engine jack.
25.Remove the transmission crossmember. • Remove the transmission mount nuts.
• Remove the transmission crossmember bolts
and nuts.
26.Remove the transmission assembly from the vehicle.

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ON-VEHICLE SERVICE (AW30–40LE) 7A3-45
3. Remove a engine jack.
4. Remove a transmission jack.
5. Connect the two fuel pipe clips (1) on the transmission crossmember left side.




RTW 77ASH002701
6. Install the torque converter bolts.
Torque: 29 N ⋅
⋅⋅
⋅
m(3.0 kgf ⋅m/22 lb ⋅ft)
NOTE: Do not reuse the torque converter bolts.
7. Install the under cover(1). Torque: 8 N ⋅
⋅⋅
⋅
m(0.8 kgf ⋅m/69 lb ⋅in)





RTW 77ASH002601
8. Connect two ATF pipes.
Torque: 44 N ⋅
⋅⋅
⋅
m(4.5 kgf ⋅m/33 lb ⋅ft)
9. Install the ATF pipe bolt (1).




RTW 77ASH002501
10.Connect the starter assembly with shift cable
bracket.
Torque: 76 N ⋅
⋅⋅
⋅
m(7.7 kgf ⋅m/56 lb ⋅ft)
11.Connect the shift cable bracket on the transmission side.
12.Install the fuel pipe bracket bolt (1) on clutch housing lower left side.
Torque: 76 N ⋅
⋅⋅
⋅
m(7.7 kgf ⋅m/56 lb ⋅ft)





RTW 77ASH002401
13.Install the oil level gauge and upper guide tube.



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7A3-46 ON-VEHICLE SERVICE (AW30–40LE)
14.Connect the transmission harness connector (2)
and two clips (1).




2
1
1


RTW 77ASH001401
15.Connect the shift cable (1) to the transmission
side.




RTW 77ASH002801

16.Connect the fuel pipe clip (1).




1

RTW 77ASH001301
17.Connect the input sensor harness clip.
18.Connect the input sensor connector (1), ATF temperature sensor connector (3), neutral start
(mode) switch connector (4), output senso
r
connector (5) and clip (2).




RTW 77ASH002101


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ISUZU KB P190 2007

TRANSMISSION CONTROL SYSTEM (JR405E) 7A2-53
41. Inspect all of the circuits going to the input
shaft speed (ISS) sensor and the output shaft
speed (OSS) sensor for the following
conditions:
• Routed too closely to fuel injection wiring or components
• Routed too closely to after-market add- on electrical equipment
• Routed too closely to solenoids and relays
2. If you find incorrect routing, correct the harness routing.
Did you find and correct the condition? —
Go to Step 13 Go to Step 5
5 1. Disconnect the ISS sensor and the OSS
sensor harness connector.
2. Inspect for an intermittent, for poor connections and corrosion at the harness
connector of the ISS sensor (pins 1, 2 and 3 of
E-31) and the OSS sensor (pins 1,2 and 3 of
E-30).
3. Disconnect the TCM harness connector.
4. Inspect for an intermittent, for poor connections and corrosion at the harness
connector of the TCM (pins 3 and 13 of C-95).
5. Repair the connection(s) as necessary.
Did you find and correct the condition? —
Go to Step 13 Go to Step 6
6 1. Inspect the ISS sensor and the OSS sensor
for the following conditions:
• Physical damage of sensor
• Loose or improper installation of sensor
• Excessive air gap
• Foreign material passing between ISS sensor and reverse & high clutch drum
• Foreign material passing between OSS sensor and parking gear
• Physical damage of reverse & high clutch drum or parking gear
2. Repair or replace as necessary.
Did you find and correct the condition? —
Go to Step 13 Go to Step 7
7 1. Place the selector lever in D range.
2. Observe the Low & Reverse Brake Pressure Switch, 2-4 Brake Pressure Switch and High
Clutch Pressure Switch parameter with a scan
tool. Refer to Clutch, Brake, Solenoid and
Pressure Switch Logic table.
Does the each transmission fluid pressure (TFP)
switch display match each selected gear range? —
Go to Step 8 Refer to DTC
P1853, P1858 or P1863
8 Perform the line pressure test. Refer to Line
Pressure Test.
Is the line pressure within specifications for each
selected gear range? —
Go to Step 9 Refer to appropriate
instructions in the
Line Pressure Test
Step
Action Value(s)Yes No

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TRANSMISSION CONTROL SYSTEM (JR405E) 7A2-97
Faulty Operation in Stopping Vehicle moves in P range or parking is not disengaged in other than Prange G1
Large creeping force G2
Small creeping force G3
Large noise during idle with vehicle stop G4
Faulty Lock Up Judder Occurs at Lock Up H1
Large Shock at Lock Up H2
Lock Up Point is High or Low H3
No Lock Up No Lock Up I1
Transmission Fluid Leak Transmission fluid leaks from breather J1
Transmission fluid leaks between engine and converter housing J2
Transmission fluid leaks between converter housing and transmission
case J3
Transmission fluid leaks between transmission case and extension
housing J4
Transmission fluid leaks from oil pan J5
Transmission fluid leaks from manual shaft oil seal J6
Transmission fluid leaks from oil cooler pipe joint J7
Others Transmission overheat Z1
Mode lamp (power drive or 3rd start) does not turn On Z2
Mode lamp (power drive or 3rd start) does not turn Off Z3
A/T oil temperature lamp turns On Z4
Selector lever feeling is faulty Z5
Poor fuel consumption Z6
Shift indicator is faulty Z7
Abnormal smell Z8
Transmission fluid quantity is low or high Z9
Transmission fluid quantity is low or high Z10
Abnormal transmission fluid pressure Z11
Diagnostic Category
Category No.

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