start ISUZU KB P190 2007 Workshop Repair Manual

Powertrain Interface Module – V6 Page 6E1–63

PRND32L Display Diagnostic Table
Step Action Yes No
1
Has the Diagnostic System Check been performed?
Go to Step 2 Refer to
Diagnostic
System Check in this section
2 1 Turn the ignition to the ON position.
2 Move the gear select lever through each gear position and check the instrument cluster PRND32L display.
Does each indicator display an off to on condition? Refer to Additional
Information in this section Go to Step 3
3
Are any of the indicators permanently illuminated? Go to Step 5 Go to Step 4
4 1 Using Tech 2 select,

Body / PIM / Miscellaneous Tests / Status Indicators /
PRNDL Lamps.
2 Using the Tech 2 soft keys step through the sequence of illuminating each PRND32L indicator in turn.
Does each indicator display an off to on condition? Go to Step 8 Go to Step 10
5
Disconnect the TCM harness connector. Refer to 7C4 Automatic
Transmission – 4L60E – On-vehicle Servicing.
Is the indicator in Step 3 still permanently illuminated? Go to Step 6 Go to Step 8
6 Disconnect the PIM harness connector. Refer to 11.2 Powertrain
Interface Module in this Section.
Is the indicator in Step 3 still permanently illuminated? Go to Step 7 Go to Step 14
7
Turn the ignition to the ON position, test for a short to voltage of the
relevant circuits from the PIM to the instrument cluster. Refer to 6
W iring Diagram and Connector Chart.
W as any fault found and rectified? Go to step 15 Go to step 12
8
Check the neutral start and back-up lamp switch and automatic
transmission for correct operation. Refer to 7C2 Automatic
Transmission – 4L60E – Electrical Diagnosis.
W as any fault found and rectified? Go to Step 15 Go to 9
9 Replace the TCM. Refer to 7C4 Automatic Transmission – 4L60E –
On-vehicle Servicing.
Has the repair been completed? Go to Step 15 —
10 1 Disconnect the instrument cluster harness connector.
2 Turn the ignition to the ON position.
3 W hile sequencing each PRND32L indicator, back probe the relevant connector pins at the rear of the instrument cluster.
Refer to 6 W iring Diagram and Connector Chart.
Does the multimeter display a change from 0 to 10 Volts as each
PRND32L indicator position is selected? Go to Step 12 Go to 11
11 Test for high resistance, open circuit, a short to ground of the relevant
circuits from the PIM to the instrument cluster. Refer to 6 W iring
Diagram and Connector Chart.
W as any fault found and rectified? Go to Step 15 Go to Step 14

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ISUZU KB P190 2007

Powertrain Interface Module – V6 Page 6E1–65

Hard-wired Warning Signals
Display Indicator
CHECK TRANS Lamp
3rd START Lamp
POW ER Lamp
A/T OIL TEMP Lamp
CRUISE SET Lamp
OIL Lamp
THERMO Gauge
SVS Lamp
CHARGE Lamp
TACHO Gauge
Warning Signal and Status Indicator Diagnostic Table
Step Action Yes No
1
Has the Diagnostic System Check been performed?
Go to Step 2 Refer to
Additional
Information
2 Turn the Ignition to the ON position, observe if all warning and status
indicators illuminate during the Instrument Cluster start up sequence.
Do all indicators illuminate? Go to Step 3 Go to step 4
3 1 Start the vehicles engine.
2 Are any of the warning or status indicators permanently illuminated? Go to Step 7 Go to Step 4
4 Using Tech 2.
Are any DTC’s set which may cause incorrect operation of the warning
or status indicators? Refer to the
relevant DTC’s section Go to Step 5
5
1 Using Tech 2 select,
Body / PIM / Miscellaneous Tests / Status Indicators.
2 Select and activate in turn Cruise Control ON Lamp / Cruise
Control Set Lamp / Power Drive Lamp.
Does each indicator illuminate? Go to Step 6 Go to Step 8
6
1 Using Tech 2 select,
Body / PIM / Miscellaneous Tests / Warnings.
2 Select and activate in turn, ALT / Oil Pressure / Service Soon /
A/T Oil Temp / Check Trans.
Does each warning illuminate? Go to Step 15 Go to Step 8
7 Disconnect the PIM harness connector. Refer to 11.2 Powertrain
Interface Module in this section.
Is the indicator/warning in Step 3 still permanently illuminated? Go to Step 9 Go to Step 12
8 Remove and test the lamp from the malfunctioning warning.
W as the lamp found to be faulty and replaced? Go to Step 15 Go to Step 14

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ISUZU KB P190 2007

Powertrain Interface Module – V6 Page 6E1–66

Step Action Yes No
9
Test for high resistance, open circuit, a short to ground of the relevant
circuits from the PIM to the instrument cluster. Refer to 6 W iring
Diagram and Connector Chart.
W as any fault found and rectified? Go to Step 16 Go to step 10
10
Turn the ignition to the ON position, test for a short to voltage of the
relevant circuits from the PIM to the instrument cluster. Refer to 6
W iring Diagram and Connector Chart.
W as any fault found and rectified? Go to Step 16 Go to Step 11
11
Disconnect the PIM.
Test for a short to voltage of the relevant circuits from the PIM to the
instrument cluster.
W as any fault found and rectified? Go to Step 13 Go to Step 12
12 Disconnect the instrument cluster.
Test for a short to voltage of the relevant circuits from the PIM to the
instrument cluster.
W as any fault found and rectified? Go to Step 16 Go to Step 14
13 Replace the PIM.
Has the repair been completed? Go to Step 16 —
14 Test the following instrument cluster circuits for a high resistance,
open circuit or short to ground fault condition:
• all 12 V battery supply circuits
• all instrument cluster ground connections
W as any fault found and rectified? Go to Step 16 Go to Step 15
15 Replace the instrument cluster.
Has the repair been completed? Go to Step 16 —
16 Turn the Ignition to the ON position, observe if all warning indicators
illuminate during the Instrument Cluster start up sequence.
Do all indicators function correctly? System serviceable Go to step 3
When all diagnosis and repairs are completed, clear all DTCs and check the system for correct operation.

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ISUZU KB P190 2007

Powertrain Interface Module – V6 Page 6E1–68

4
Test for high resistance, open circuit, a short to ground of the relevant
circuits from the PIM to the instrument cluster. Refer to 6 W iring
Diagram and Connector Chart.
W as any fault found and rectified? Go to Step 10 Go to Step 5
5
Turn the ignition to the ON position, test for a short to voltage of the
relevant circuits from the PIM to the instrument cluster. Refer to 6
W iring Diagram and Connector Chart.
W as any fault found and rectified? Go to Step 10 Go to Step 6
6
Measure the frequency at the tachometer signal output from the ECM,
refer to 8A Electrical Body and Chassis.
Is the tachometer frequency present? Go to Step 7 Refer to
6C1-2 Engine Management
Diagnostics
7 Replace the PIM.
Has the repair been completed? Go to Step 10 —
8 Test the following instrument cluster circuits for a high resistance,
open circuit or short to ground fault condition:
• all 12 V battery supply circuits
• all instrument cluster ground connections
W as any fault found and rectified? Go to Step 10 Go to Step 9
9 Replace the instrument cluster.
Has the repair been completed? Go to Step 10 —
10 Start the vehicles engine.
Does the tachometer function normally? System OK Go to Step 2
When all diagnosis and repairs are completed, clear all DTCs and check the system for correct operation.

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ISUZU KB P190 2007

Powertrain Interface Module – V6 Page 6E1–70

Temperature Gauge Diagnostic Table
Step Action Yes No
1
Has the Diagnostic System Check been performed?
Go to Step 2 Refer to
Additional
Information
2 Test the function of the temperature gauge using the instrument
cluster self diagnostic test procedure, refer to 8A Electrical Body and
Chassis.
Does the temperature gauge display a mid point reading on the dial? Go to Step 3 Go to Step 9
3
1 Using Tech 2 select,

Body / PIM / Miscellaneous Tests / Gauge Control Tests /
Temperature Gauge.
2 Using the Tech 2 soft keys step the temperature gauge through the different ranges.
Does the temperature gauge respond to the Tech 2 commands? Go to Step 6 Go to Step 4
4 Test for high resistance, open circuit, a short to ground of the relevant
circuits from the PIM to the instrument cluster. Refer to 6 W iring
Diagram and Connector Chart.
W as any fault found and rectified? Go to Step 11 Go to Step 5
5 Turn the ignition to the ON position, test for a short to voltage of the
relevant circuits from the PIM to the instrument cluster. Refer to 6
W iring Diagram and Connector Chart.
W as any fault found and rectified? Go to Step 11 Go to Step 6
6
Using Tech 2 select,

Body / ECM / Diagnostic Trouble Codes.
Are any DTC’s set that will effect the operation of the temperature
gauge? Go to Step 7 Go to Step 8
7 W as any fault found and rectified? Go to Step 11 —
8 Replace the PIM.
Has the repair been completed? Go to Step 11 —
9 Test the following instrument cluster circuits for a high resistance,
open circuit or short to ground fault condition:
• all 12 V battery supply circuits
• all instrument cluster ground connections
W as any fault found and rectified? Go to Step 11 Go to Step 10
10 Replace the instrument cluster.
Has the repair been completed? Go to Step 11 —
11 Start the vehicles engine.
Does the temperature gauge function normally? System OK Go to Step 2
When all diagnosis and repairs are completed, clear all DTCs and check the system for correct operation.

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ISUZU KB P190 2007

Powertrain Interface Module – V6 Page 6E1–71

11 Service Operations
11.1 Safety and Precautionary Measures

The following safety and precautionary
measures must be followed when servicing
and diagnosing the powertrain interface
module (PIM) System. Otherwise, personal
injury and / or improper braking system
operation may occur:
• W hen using electric welding equipment, disconnect the wiring harness connector from the PIM.
• Never disconnect or reconnect the PIM wiring harness connector when the ignition is switched ON.
• Do not touch the PIM connector pins or soldered components on the PIM circuit board to prevent possible
Electrostatic Discharge damage.
• To avoid wiring connector terminal damage, always use suitable wiring harness test leads (such as those in Tool
No, J35616) when performing tests on the PIM wiring connector.
• The PIM is extremely sensitive to Electro Magnetic Interference (EMI). Ensure the PIM wiring harness is routed
correctly and securely fitted to mounting clips when performing service procedures.
• Due to the sensitive nature of the PIM circuitry, specific wiring repair procedures have been developed. These
procedures and instructions are detailed in 8A Electrical - Body and Chassis and are the only recommended and
approved wiring repair methods.
• Ensure that all wiring harness connectors are seated correctly.
• Never disconnect the battery from the vehicle electrical system while the engine is running.
• Always disconnect the battery from the vehicle electrical system before charging.
• Do not use a fast charger for starting the vehicle.
• Ensure the battery cable terminals are secure.
• Before installing a new PIM, ensure the correct type is fitted. Always refer to the latest spare parts information.
11.2 Powertrain Interface Module

Do not touch the powertrain interface module
pins as Electrostatic Discharge (ESD) damage
may result. For further information on ESD,
refer to 1.2 Warning Caution and Notes.

When replacing the PIM, the PIM must be
reset prior to removal. Failure to perform this
procedure will result in the inability to:
• Test the PIM for warranty purposes.
• Install the PIM into other vehicles.

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ISUZU KB P190 2007

Powertrain Interface Module – V6 Page 6E1–75

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
ICU / PIM Status Yes / No Yes
Security Code Programmed Yes / No Yes
Security W ait Time Inactive / Active Inactive
Security W ait Time Inactive / 0:00:00 Inactive
Security Code Correct Enter Yes / No Yes
Security Code Reset Counter 0 0
12.2 PIM Reset Procedure

Do not perform the reset procedure within
sixty seconds of turning the ignition switch
on. Failure to comply may result in the PIM
failing to reset.
W hen a PIM has been installed into a vehicle, it is security linked to the immobiliser control unit (ICU) and engine control
module (ECM). Once this linking has been performed, the PIM cannot be installed in any other vehicle, unless the
security linking between the ICU and the ECM has been reset using the following procedure:
1 Prior to resetting the PIM, obtain the Security Code. For further information, refer to 12.1 Security and Programming Information.
2 Connect Tech 2 to the data link connector (DLC) and turn the ignition switch on.
3 On Tech 2 select: Body / Powertrain Interface Module / Security / Reset PIM .
NOTE
When Tech 2 requests programming approval,
obtain TIS approval.
NOTE
If a Tech 2 screen displaying Security Wait Time
Active, Please Wait! appears after selecting the
Reset PIM option, an incorrect security code has
been previously entered. Refer to 12.1
Security and Programming Information for further
information.
4 W hen Tech 2 displays Enter Security Code, enter the security code, press the Enter key and then the Okay soft
key.

The engine will not start after the PIM has
been reset.
5 W hen Tech 2 displays Do you really want to Reset? , press the Reset soft key.

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ISUZU KB P190 2007

Powertrain Interface Module – V6 Page 6E1–77


Do not turn the ignition switch off within 60
seconds of programming the VIN. Failure to
comply may result in the changes failing to be
programmed into the PIM.
5 W hen notified that the programming was successful, press the Confirm soft key to return to the Tech 2 Program
screen.
12.4 Immobiliser Link to ECM / PIM

Do not perform the Immobiliser Link to ECM /
PIM procedure within sixty seconds of turning
the ignition switch on. Failure to comply may
result in the PIM failing to link.
W hen the powertrain interface module (PIM) has been replaced, it is necessary to security link the PIM to the immobiliser
control unit (ICU) and engine control module (ECM) before the vehicle will start.
NOTE
This linking procedure between the ECM and PIM
is also known as the Immobiliser Function
Programming.
1 Prior to performing the linking procedure, obtain the security code. For further information, refer to 12.1Security and Programming Information.
2 Connect Tech 2 to the data link connector (DLC).
3 On Tech 2 select: Body / Powertrain Interface Module / Security / Immobiliser Link to ECM / PIM .
4 W hen Tech 2 displays Immobiliser Replaced, press the No soft key.
5 W hen Tech 2 displays PIM or ECM Replaced?, press the Yes soft key.
NOTE
When Tech 2 requests programming approval,
obtain TIS approval.
6 W hen Tech 2 displays Enter Security Code, enter the security code and press the Enter key and then the Okay
soft key.
7 W hen Tech 2 displays Confirm Security Code, re-enter the security code, press the Enter key and then the Okay
soft key.
8 W hen Tech 2 displays Select Immobiliser Programming Routine , use the up or down arrow selection keys, to
select the PIM Replaced option and press the Enter key.
9 W hen Tech 2 displays Stop Engine – Turn Off Ignition , turn the ignition switch off and press the Confirm soft key.
10 W hen Tech 2 displays Turn Ignition On, turn the ignition switch on and press the Confirm soft key.

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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

Exhaust System – V6 Page 6F – 5

Service Notes
1. Vehicles fitted with catalytic converters should not be operated with leaded petrol. Lead will contaminate
the ceramic monolith.
2. Do not drop the catalytic converter as it will damage the ceramic monolith.
3. Replace the catalytic converter if it is damaged.
4. Do not allow water, oil or fuel to enter the converter as the ceramic monolith will be contaminated.
5. Do not use engine and/or fuel additives unless approved by General Motors. Many additives contain phosphorous that will contaminate the ceramic monolith.
6. The vehicle must not be started by pushing or towing, as unburned fuel could reach the catalytic converter and destroy the ceramic monolith. Always use jumper leads to start a vehicle that has a flat or
defective battery.
7. W hen carrying out a compression test, for V6 engines use Tech 2 to ensure the output control Engine Compression Test is set to enable, refer to 6A1 Engine Mechanical. This prevents fuel injection and
ignition during engine cranking.
8. Do not drive the vehicle with the engine misfiring or with any of the spark plug leads disconnected, as the catalytic converter will overheat.
9. Do not coast downhill with the engine misfiring or with any of the spark plug leads disconnected.
10. The catalytic converter is serviceable as part of the front exhaust assembly only. Refer to the service operations in this section for details of front exhaust pipe assembly removal and reinstallation.
11. The exhaust flange gaskets must be replaced whenever a new exhaust pipe, muffler or catalytic converter is installed.
1.3 WARNING, CAUTION and NOTES
This Section contains various W ARNINGS, CAUTIONS and NOTE statements that you must observe carefully to reduce
the risk of death or injury during service, repair procedures or vehicle operation. Incorrect service or repair procedures
may damage the vehicle or cause operational faults. W ARNINGS, CAUTION and NOTE statements are not exhaustive.
HOLDEN LTD can not possibly warn of all the potentially hazardous consequences of failure to follow these instructions.
1.1 Definition of WARNING, CAUTION and NOTE Statements

Diagnosis and repair procedures in this Section contain both general and specific W ARNING, CAUTION and NOTE
statements. HOLDEN LTD is dedicated to the presentation of service information that helps the technician to diagnose
and repair the systems necessary for proper operation of the vehicle. Certain procedures may present a hazard to the
technician if they are not followed in the recommended manner. W ARNING, CAUTION and NOTE statements are
designed to help prevent these hazards from occurring, but not all hazards can be foreseen.
WARNING defined
A W ARNING statement immediately precedes an operating procedure or maintenance practice which, if not correctly
followed, could result in death or injury. A W ARNING statement alerts you to take necessary action or not to take a
prohibited action. If a W ARNING statement is ignored, the following consequences may occur:
• Death or injury to the technician or other personnel working on the vehicle,
• Death or injury to other people in or near the workplace area, and / or
• Death or injury to the driver / or passenger(s) of the vehicle or other people, if the vehicle has been improperly
repaired.
CAUTION defined
A CAUTION statement immediately precedes an operating procedure or maintenance practice which, if not correctly
followed, could result in damage to or destruction of equipment, or corruption of data. If a CAUTION statement is
ignored, the following consequences may occur:
• Damage to the vehicle,
• Unnecessary vehicle repairs or component replacement,

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