2007 ISUZU KB P190 oil temperature

Automatic Transmission – 4L60E – On-vehicle Servicing Page 7C4–5
2 Maintenance Operations
2.1 Transmission Fluid
When adding or changing the transmission fluid, use only the recommended automatic transmission fluid, refer to
0B Maintenance and Lubrication.
For the automatic transmission fluid diagnosis, refer to 7C3 Automatic Transmission – 4L60E – Hydraulic and
Mechanical Diagnosis.
Transmission Fluid Colour
New transmission fluid is red in colour due to a dye that is added to the fluid so it can be distinguished from other oils and
lubricants. The red dye is not permanent and as such, is not an indicator of the quality of the fluid.
As the vehicle is driven the transmission fluid will quickly look darker in colour and appear to be a light brown. A dark
brown colour with a distinctively burnt odour may indicate fluid deterioration and the need for fluid replacement.
NOTE
A dark brown fluid colour observed, coupled with
a reported delayed shift pattern may only indicate
that fluid replacement is required. This is not a
definite indication of a potential transmission
failure.
Transmission Fluid Level
NOTE
Carry out this operation with the transmission at
normal operating temperature (82 – 94°C), as the
temperature greatly affects the fluid level.
1 Drive the vehicle for a distance of at least 25 km to bring the transmission up to normal operating temperature.

If the transmission is not at normal operating
temperature and the correct procedure is not
followed, the result could be a false reading of
the fluid level on the transmission fluid
indicator.
2 If the vehicle has been operated under any of the following conditions, switch the engine off and allow the transmission to cool for approximately thirty minutes:
• in high ambient temperatures above 32° C,
• at sustained high speeds,
• in heavy stop / start city traffic during hot weather, or
• towing.
3 Park the vehicle on level ground.
4 Move the gear selector to the Park position and apply the park brake.
5 Allow the engine to idle for 3 minutes with the accessories turned off.

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ISUZU KB P190 2007

Automatic Transmission – 4L60E – On-vehicle Servicing Page 7C4–10
3 Lubricate a new oil filter seal (1) with clean
transmission fluid and install into the oil pump bore (2)
using a suitable sized socket or piece of tubing.
4 Install a new filter into the transmission case.
5 Check if the magnet is functional and located in the designated position in the oil pan. Install a new gasket
and reinstall the oil pan.
6 Tighten the bolts attaching the oil pan to the correct torque specification.
Oil pan attaching bolt
torque specification ............................................ 12.0 Nm

Figure 7C4 – 5
7 Lower vehicle and add approximately 4.8 litres of automatic transmission fluid.
8 Operate the vehicle for about 24 km or until normal transmission operating temperature is reached, refer to 2.1 Transmission Fluid.
9 Ensure there are no fluid leaks from the oil pan area, rectify as required.
10 Check and top up the transmission fluid to the correct level as required, refer 2.1 Transmission Fluid.

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Automatic Transmission – 4L60E – On-vehicle Servicing Page 7C4–30
12 Road test until the transmission has reached operating temperature. Re-check the fluid level and for any fluid leaks
from the oil pan area, refer to 2.1 Transmission Fluid.
3.14 Control Valve Body
Remove
1 Partially remove the control valve body harness until it hangs from the pass-thru connector, refer to
3.13 Control Valve Body Harness.
2 Remove the three long bolts (1) and the two short bolts (2) attaching the transmission fluid pressure
(TFP) manual valve position switch assembly (3),
remove the switch and discard the shield (4).
3 Remove the attaching bolt (5) and the manual detent spring (6).
Figure 7C4 – 37

In the following procedure support the
control valve body before removing the last
bolt.
NOTE
The removal may be more manageable by
removing the bolts in a spiral pattern starting
from the outside, removing the centre bolt last.
4 Remove the fourteen remaining bolts (1) attaching the control valve body.

Figure 7C4 – 38

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Automatic Transmission – 4L60E – On-vehicle Servicing Page 7C4–39
10 Reinstall the plate (2) supporting the spacer plate and
tighten the three attaching bolts (1) to the correct
torque specification.
Spacer plate support plate attaching
bolt torque specification ..................................... 12.0 Nm
11 Reinstall the control valve body, refer to 3.14 Control Valve Body.
12 Reinstall the Oil pan and filter and fill the transmission with the recommended automatic transmission fluid,
refer to 3.1 Fluid Change and Filter Replacement.
13 Lower vehicle to the ground.
14 Road test until the transmission has reached operating temperature. Re-check the fluid level and for any fluid
leaks from the oil pan area, refer to 2.1 Transmission
Fluid.
Figure 7C4 – 55
3.16 Filler Tube and Breather Hose
Remove
NOTE
The breather hose and/or vent pipe can be
removed independently from the filler tube as
described in step 7.

Disconnection of the battery affects certain
vehicle electronic systems. Refer to 6D1-3
Battery, before disconnecting the battery.
1 Disconnect the battery ground lead.
2 Release the lock down lever (1) and remove the transmission fluid level indicator from the filler tube (2).

Figure 7C4 – 56
3 Remove the bolt (1) attaching the filler tube (2) to the side of the right-hand cylinder head, refer to Figure 7C4 – 57.
4 Using a twisting and pulling motion, remove the filler tube from the seal (3) in the transmission case.

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Automatic Transmission – 4L60E – On-vehicle Servicing Page 7C4–47
14 Reconnect the fuel and EVAP pipes three brackets and clips, refer to 6C Fuel System – V6.
15 Reinstall the following components:
a Starter motor, refer to 6D1-2 Starting System.
b Transmission support, refer to 3.7 Transmission Support and Mount.
c Front and centre exhaust assemblies, refer to 6F Exhaust System.
d Rear propeller shaft and for 4WD front propeller shaft, refer to 4A Propeller Shaft.
16 Reconnect the harness connectors to the following: a Vehicle speed sensor, refer to 3.5 Vehicle Speed Sensor.
b Neutral start and back-up switch, refer to 3.4 Neutral Start and Back-up Lamp Switch.
c For the following on 4W D vehicles, refer to 7D Transfer Case and Adaptor Housing:
• neutral switch,
• 2WD – 4WD shift actuator switch,
• speed sensor.
17 Reinstall the selector cable to the transmission external manual shaft linkage, secure the selector cable to the bracket and attach the heat shield to the neutral start and back-up lamp switch, refer to 3.3 Selector Cable
Assembly.
18 Perform a reverse flush of the cooler lines and a flow rate test, refer to 2.2 Reverse Flush and Flow Rate, if either of the following applies:
• the transmission fluid is contaminated,
• the transmission has been replaced,
• the torque converter has been replaced, or
• the transmission oil pump has been replaced.
19 Lower the vehicle to the ground.
20 If required, top up the transmission fluid level (cold).
21 Reconnect the battery ground lead.
22 Start the engine and check for any fluid leaking at the fittings. If a leak is found, stop the engine and rectify the leak.
23 Road test until the transmission has reached operating temperature. Re-check the fluid level and for any fluid leaks, refer to 2.1 Transmission Fluid.
3.19 Transmission Control Module
Remove
1 Ensure the ignition switch is in the OFF position.
2 Disconnect the connector (1) from the transmission control module (TCM) (2) as follows, refer to Figure 7C4 – 63: a remove the securing pin (3),
b press the locking tab and swing the lever (4) to free the connector,
c remove the connector.
3 Remove the four bolts (5) and nuts (6), then the TCM from the mounting bracket (7).
4 If required, remove the two nuts (8) and the mounting bracket from the firewall.

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7A2-8 TRANSMISSION CONTROL SYSTEM (AW30–40LE)
TCM Point Table





RTW 77ASF000401

C-94 Connector
PIN No. SIGNAL NAME
A1 GND
A2 PRESSURE CONTROL SOLENOID GND
A3 —
A4 PRESSURE CONTROL SOLENOID
A5 L-up SOLENOID
A6 STARTER SW (IG1)
A7 CAN COMMUNICATION (-)
A8 —
A9 —
A10 —
A11 T/M OIL TEMPERATURE SENSOR
A12 T/M OIL TEMPERATURE SENSOR GND
A13 —
A14 —
A15 SHIFT SOLENOID (S2)
A16 SHIFT SOLENOID (S1)
A17 CAN COMMUNICATION (+)
A18 —
A19 —
A20 —
A21 —
A22 —
A23 GND
A24 BATTERY

C-95 Connector
PIN No. SIGNAL NAME
B1 NEUTRAL START SW (R)
B2 POW ER LAMP
B3 CHECK TRANS LAMP
B4 PATTERN SELECT SW (3rd START)
B5 SPEED SENSOR (+)
B6 INPUT REVOLUTION SENSOR (+)
B7 NEUTRAL START SW (D)
B8 NEUTRAL START SW (N)
B9 NEUTRAL START SW (3)
B10 3rd START LAMP
B11 OIL TEMPERATURE W ARNING LAMP
B12 DIAGNOSIS TERMINAL
B13 PATTERN SELECT SW (POW ER)
B14 SPEED SENSOR (-)
B15 —
B16 INPUT REVOLUTION SENSOR (+)
B17 —
B18 NEUTRAL START SW (L)
B19 NEUTRAL START SW (2)
B20 NEUTRAL START SW (P)
B21 TRANSMISFER LOW 4 SW
B22 BRAKE LAMP SW
B23 DIAGNOSIS OUT PUT
B24 —
B25 —
B26 —




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TRANSMISSION CONTROL SYSTEM (AW30–40LE) 7A2-9
TCM Voltage & Resistance Check Sheet
CHECK ITEM PIN No. VALUE NOTE
VIGN C-94: 6–1 VIGN Key “ON”
Backup Power Supply C-94: 24–1 +B (Always) Key “ON”
Neutral Start Switch P “P” Position VIGN Key “ON”
Except “P” 0V
Neutral Start Switch R C-95: 1–C-94: 1 “R” Position VIGN Key “ON”
Except “R” 0V
Neutral Start Switch N C-95: 8–C-94: 1 “N” Position VIGN Key “ON”
Except “N” 0V
Neutral Start Switch D C95: 7–C-94: 1 “D” Position VIGN Key “ON”
Except “D” 0V
Neutral Start Switch 2 C-95: 19–C-94: 1 “2” Position VIGN Key “ON”
Except “2” 0V
Neutral Start Switch 1 C-95: 18–C-94: 1 “1” Position VIGN Key “ON”
Except “1” 0V
Neutral Start Switch 3 C-95: 9–C-94: 1 “3” Position VIGN Key “ON”
Except “3” 0V
Power SW C-95: 13–C-94: 1 “ON” 0V Key “ON”
“OFF” VIGN
3rd Start SW C-95: 4–C-94: 1 “ON” 0V Key “ON”
“OFF” VIGN
Brake SW C-95: 22–C-94: 1 “ON” VIGN Key “ON”
“OFF” 0V
AT Oil Temperature
Sensor C-94: 11–12 20
°C/68 °F 4.6V Engine run.
155°C/311 °F 1.1V
4L Signal C-95: 21–C-94: 1 4L 0V Key “ON”
2H/4H VIGN
Diag SW C-95: 12–C-94: 1 “ON” VIGN Key “ON”
“OFF” 0V
Shift Solenoid A (S1) C-94: 16–1 P VIGN Engine run.
R VIGN
N VIGN
D–1 VIGN
D–2 VIGN
D–3 0V
D–4 0V

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7A2-10 TRANSMISSION CONTROL SYSTEM (AW30–40LE)
CHECK ITEM PIN No. VALUE NOTE
Shift Solenoid B (S2) C-94: 15–1 P 0V Engine run.
R 0V Engine run. (W ithout the
Reverse position lock out)
N 0V Engine run.
D–1 0V
D–2 VIGN
D–3 VIGN
D–4 0V
Lock-up Solenoid C-94: 5–1 “ON” VIGN (ex.) It is “ON” when the
vehicle speed is more than
65km/h.
“OFF” 0V
Check Trans Lamp C-95: 3–C-94: 1 “ON” 0V Key “ON”
(The lamp is “ON” for 3
second after key “ON”)
“OFF” VIGN
AT Oil Temperature Lamp C-95: 11–C-94: 1 “ON” 0V Key “ON”
(The lamp is “ON” for 3
second after key “ON”)
“OFF” VIGN
Power Lamp C-95: 2–C-94: 1 “ON” 0V Key “ON”
(The lamp is “ON” when the
Power switch is “ON”)
“OFF” VIGN
3rd Start Lamp C-95: 10–C-94: 1 “ON” 0V Key “ON”
(The lamp is “ON” when the
3rd Start switch is “ON”)
“OFF” VIGN
AT Oil Temp Sensor
Resistance C-94: 11–C-94: 12 20
°C/68 °F 12kΩ Key “OFF”
50°C/122 °F 1.5kΩ
155°C/311 °F 293Ω
Pressure Control Solenoid
Resistance C-94: 11–C-942 About

4–7
Ω(20 °C/68 °F)
Key “OFF”
Speed Sensor Resistance C-95: 5–C-95: 14 About 560Ω–
120
Ω(20 °C/68 °F)
Key “OFF”
Input Revolution Sensor
Resistance C-95: 6–C-95: 16 About 560Ω–

120
Ω(20 °C/68 °F)
Key “OFF”
Lock-up Solenoid
Resistance C-94: 5–C-94: 1 About 10Ω–

15
Ω(20 °C/68 °F)
Key “OFF”
Shift Solenoid A (S1)
Resistance C-94: 16–C-94: 1 About 10Ω–

15
Ω(20 °C/68 °F)
Key “OFF”
Shift Solenoid B (S2)
Resistance C-94: 15–C-94: 1 About 10Ω–

15
Ω(20 °C/68 °F)
Key “OFF”

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