2007 ISUZU KB P190 display

Powertrain Interface Module – V6 Page 6E1–78


Do not turn the ignition switch off within 60
seconds of performing the ICU Link to
ECM / PIM procedure. Failure to comply may
result in the PIM failing to link with the
ICU / ECM.
11 W hen Tech 2 displays Programming Successful, press the Confirm soft key to return to the Tech 2 Security
screen.

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ISUZU KB P190 2007

Powertrain Interface Module – V6 Page 6E1–79

13 Powertrain Interface Module –
Tech 2 Functions
13.1 Introduction

Do not use a Tech 2 that displays faulty data;
have the Tech 2 repaired. The use of a faulty
Tech 2 can result in misdiagnosis and the
unnecessary replacement of parts.
From the Main Menu, having selected Diagnostics / 2006 / RA Rodeo / Body , the Tech 2 functions for the Powertrain
Interface, include:
F0: Diagnostic Trouble Codes
F1: Diagnostic Data Display
F2: Snapshot
F3: Miscellaneous Tests
F4: Additional Functions
F5: Program
F6: Security
13.2 Tech 2 Functions
F0: Diagnostic Trouble Codes
W hen this test mode is initiated, DTCs stored by the ECM can be displayed or cleared. W hen entered, there are two
additional modes for selection:
F0: Read DTC Info Ordered By Priority : All DTCs stored in the ECM will be displayed.
F1: Clear DTC Information : Clears all current DTCs in the ECM and TCM memories.

F1: Diagnostic Data Display
• Use the Tech 2 Data List under the following conditions:
• The Diagnostic System Check – V6 Engine has been completed.
• The On-Board Diagnostics are functioning correctly.
• No DTCs are present.

NOTE
The values quoted in the following data list are
only intended to provide the Technician with an
indication of the values to be expected.


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ISUZU KB P190 2007

Powertrain Interface Module – V6 Page 6E1–81

13.3 Powertrain Interface Module Data List
Diagnostic Data Display
Tech 2 Display Units Displayed Switch On Switch Off
AC Switch On/Off On Off
Cruise Cancel Switch Active/Inactive Active Inactive
Cruise Resume Switch Active/Inactive Active Inactive
Cruise Set Switch Active/Inactive Active Inactive
Cruise Main Switch Active/Inactive Active Inactive
Cruise Control Set Lamp On/Off On Off
Cruise Control On Lamp On/Off On Off
Power Drive Switch On/Off On Off
Power Drive Lamp On/Off On Off
3rd Start Switch On/Off On Off
3rd Start Lamp On/Off On Off
4W D Low Gear Active/Inactive Active Inactive
G-Sensor V 2.43 2.43
G-Sensor Pa 0.027 0.027
Engine Speed RPM 152 1093
Coolant temperature Input °C 35 25
Coolant Temperature % 70 70
Fuel Level Input % 26 26
Fuel Level % 43 43
Alternator Lamp On/Off On Off
Oil Pressure Lamp On/Off On Off
SVS Lamp (Service Vehicle soon) On/Off On Off
Check transmission MIL On/Off On Off
Transmission Oil Temperature Lamp On/Off On Off
LED [ - P - ] On/Off On Off
LED [ - R - ] On/Off On Off
LED [ - N - ] On/Off On Off
LED [ - D - ] On/Off On Off
LED [ - 3 - ] On/Off On Off
LED [ - 2 - ] On/Off On Off
LED [ - 1 - ] On/Off On Off

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ISUZU KB P190 2007

Powertrain Interface Module – V6 Page 6E1–84

Tech 2 PIM Security Information Data List
The Tech 2 PIM Security Information Data List displays the PIM's current security status.
To view the data list:
1 Connect Tech 2 to the data link connector (DLC) and turn the ignition switch on.
2 On Tech 2 select: Body / Powertrain Interface Module / Security / Security Information .
NOTE
The Tech 2 PIM Security Information Data List
typical display values are obtained from a
correctly operating vehicle under the following
conditions:
• ignition switched on,
• engine not running, and
• vehicle is stationary.

Tech 2 Parameter Units Displayed Typical Display Values
Security Code Programmed Yes / No Yes
Security W ait Time Inactive / Active Inactive
Security W ait Time Inactive / 0:00:00 Inactive
Security Code Reset Counter 0 0

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ISUZU KB P190 2007

Automatic Transmission – 4L60E – General Information Page 7C1–7

Figure 7C1 – 1
Legend
1 Model year
2 Broad Cast Code Identifier
3 Manufacturer Source Code 4 Julian Date
5 Shift Build 6 Individual Transmission Serial Number
7 Identification Stamping Location
2.3 Economy, Power and Cruise Modes
The programming in the transmission control module (TCM) allows for different shift patterns, which are driver
controllable through the use of the power (PWR) button. The power button is located in the centre console.
Economy Mode
The calibration for this mode is for maximum comfort, with minimal intrusion of engine noise and smooth shifts under all
driving conditions. When additional power is required for acceleration, full throttle upshifts are similar to those calibrated
for the power mode.
Power Mode
When activated, the TCM modifies the transmission calibration in the following ways:
1 When the throttle is less than 80% open, later upshift points are provided.
2 Shift time is reduced.
3 The torque converter clutch (TCC) will be applied in both the third and fourth speed ranges.
Cruise Mode
When the driver activates the cruise control (where fitted), the power icon in the instrument clusters multi-function display
(MFD) will be deactivated (provided the vehicle was operating in power mode) and the transmission shift pattern will
switch to the cruise control pattern. When in this mode, the TCM modifies the shift pattern so that earlier downshift and
later upshift points are provided.
Through the electronic programming of the logic processes contained in the TCM, the frequency of gear shifting and
torque converter clutch application and release is minimised. The end result of these logic processes, is that a quick
series of upshifts and downshifts (e.g. a '4 – 3 – 4' shift pattern) is minimised.

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ISUZU KB P190 2007

Automatic Transmission – 4L60E – General Information Page 7C1–13
General Definition
Line Pressure The main fluid pressure in a hydraulic system created by the pump and pressure
regulator valve.
Manual Valve A spool valve that distributes fluid to various hydraulic circuits and is mechanically
linked to the gear selector lever.
Orifice A restricting device (usually a hole in the spacer plate) for controlling pressure build up
into another circuit.
Overdrive An operating condition in the gear set allowing output speed to be higher than input
speed and output torque to be lower than input torque.
Overrunning The function of a one-way mechanical clutch that allows the clutch to freewheel during certain operating conditions of the transmission.
Pedal Position The percentage angle of the accelerator pedal as displayed by Tech 2.
Pinion Gears Pinion gears (housed in a carrier) that are in constant mesh with a circumferential
internal gear and centralised sun gear.
Planetary Gear Set An assembly of gears that consists of an internal gear, planet pinion gears with a carrier, and a sun gear.
Pressure A measurable force that is exerted on an area and expressed as kilopascals (kPa).
Pulse Width Modulated (PW M) An electronic signal that continuously cycles the On and Off time of a device (such as
a solenoid) while varying the amount of On time.
Race (Inner or Outer) A highly polished steel surface that contacts bearings or sprag or roller elements.
Reduction (Gear Reduction) An operating condition in the gear set allowing output speed to be lower than input speed and output torque to be higher than input torque.
Residual Fluid Pressure Excess pressure contained within an area after the supply pressure has been terminated.
Roller Clutch A mechanical clutch (holding device) consisting of roller bearings assembled between inner and outer races.
Servo A spring loaded device consisting of a piston in a bore that is operated (stroked) by
hydraulic pressure to apply or release a band.
Spool Valve A round hydraulic control valve often containing a variety of land and valley diameters.
Sprag Clutch A mechanical clutch (holding device consisting of "figure eight" like elements
assembled between inner and outer races.
Staking The effect of deforming, peening over or riveting a shaft to provide a solid mounting.
Throttle Position The travel of the throttle plate that is expressed in percentages and measured by
Tech 2.
Torque A measurable twisting force expressed in terms of Newton metres (Nm).
Torque Converter A component of an automatic transmission, (attached to the engine flex plate) that
transfers torque from the engine to the transmission through a fluid coupling.
Torx Plus Bit A special tool used for the removal of the bell housing. Precision tip fit means that cam
out of the bolt head is virtually eliminated.
NOTE
Torx 
Plus Bits are different from normal Torx 
Bits
Transmission Control Module
(TCM) An electronic device that manages the vehicle's engine and automatic transmission
functions.
Variable Capacity Pump The device that provides fluid for operating the hydraulic circuits in the transmission. The amount of fluid supplied varies depending on vehicle operating conditions.

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Automatic Transmission – 4L60E – Electrical Diagnosis Page 7C2–1
7C2
Diagnosis
ATTENTION
Before performing any service operation or other procedure described in this Section, refer to 00 Warnings, Cautions and Notes for correct workshop practices with regard to safety and/or property damage.
1 General Information ............................................................................................................ ...................8
1.1 Introduction ............................................................................................................................................................ 8
1.2 General Description ............................................................................................................................................... 8
Transmission Adaptive Functions ................................................................................................ ....................... 9
Limp Home Mode Description ............................................................................................................................ 10
1.3 Transmission Indicators and Messages ............................................................................................................ 10
1.4 Electronic Component Description ............................................................................................... ..................... 10
Transmission Control Module (TCM) ................................................................................................................. 10
2 Wiring Diagrams and Connector Chart ............................................................................................ ..13
3 Tech 2 Information ...............................................................................................................................14
3.1 Tech 2 Diagnostics .............................................................................................................................................. 14
Test Modes ........................................................................................................................................................... 14
Diagnostic Trouble Codes ....................................................................................................... ......................... 14
Data Display ..................................................................................................................................................... 14
Snapshot .......................................................................................................................................................... 15
Additional Functions ........................................................................................................... .............................. 15
Miscellaneous Tests ......................................................................................................................................... 15
Programming.................................................................................................................................................... 16
3.2 Data Display ......................................................................................................................................................... 16
Transmission Data .............................................................................................................. ................................. 16
Transmission Data Parameters ................................................................................................... ..................... 16
TCC Data............................................................................................................................................................... 17
TCC Data Parameters ............................................................................................................ .......................... 17
1-2 Shift Data ........................................................................................................................................................ 18
1-2 Shift Data Parameters ................................................................................................................................ 18
2-3 Shift Data ........................................................................................................................................................ 18
2-3 Shift Data Parameters ................................................................................................................................ 18
3-4 Shift Data ........................................................................................................................................................ 19
3-4 Shift Data Parameters ................................................................................................................................ 19
3-2 Downshift Data............................................................................................................................................... 19
3-2 Downshift Data Parameters ....................................................................................................................... 19
Pressure Control Solenoid Data ................................................................................................. ........................ 19
Pressure Control Solenoid Data Parameters ...................................................................................... ............. 20
Transmission Adapts .......................................................................................................................................... 20
1-2 Adapt Data ................................................................................................................................................. 20
2-3 Adapt Data ................................................................................................................................................. 20
3-4 Adapt Data ................................................................................................................................................. 20
Steady State Adapt Data ........................................................................................................ .......................... 21
3.3 Tech 2 Data Definitions ........................................................................................................ ............................... 21
3.4 Miscellaneous Tests ............................................................................................................................................ 23
Automatic Tra nsm ission – 4L60E – Electric al

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Automatic Transmission – 4L60E – Electrical Diagnosis Page 7C2–10
Limp Home Mode Description
If a major electrical system failure occurs which could affect vehicle safety or damage the transmission during normal
operation, the TCM enters a limp home mode. In the limp home mode, the transmission operates in the following
manner:
• The pressure control solenoid is off and the line pressure is at maximum to minimise clutch slippage.
• The TCC solenoid is off, therefore the torque converter clutch is disabled.
• The two shift solenoids are turned off. The transmission will operate in fourth gear if the vehicle has successfully
completed a 1-2 upshift in the current ignition cycle. If the vehicle has not completed a 1-2 upshift in the current
ignition cycle, the transmission will operate in third gear. If the transmission is operating in fourth gear, third gear
may be obtained if the engine is stopped briefly and re-started.
In limp home mode, the gear selector lever is ineffective at selecting forward gear ranges. In third or fourth gear, heat
builds up in the transmission quickly, particularly in stop and go traffic. Excessive heat build-up may cause transmission
failure if the vehicle is driven for extended distances in limp home mode.
1.3 Transmission Indicators and Messages
For information pertaining to the instrument cluster and the transmission information it displays, refer to the RA Rodeo
Owner Handbook.
1.4 Electronic Component Description
For all other electrical components not covered in this section, refer to General Motors Powertrain Group Electronically
Controlled Automatic Transmission Technician's Guide.
Transmission Control Module (TCM)
The Transmission Control Module (TCM) is located under the instrument panel, next to the brake pedal assembly and
connects directly to the transmission wiring harness. A single 49-way connector is used to make the connection between
the vehicle wiring harness and the TCM.
To access the connector for diagnosis:
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 7C2 – 2: a remove the securing pin (3),
b press the locking tab and swing the lever (4) to free the connector,
c remove the connector.

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