ignition ISUZU KB P190 2007 Workshop Repair Manual

Powertrain Interface Module – V6 Page 6E1–64

Step Action Yes No
12
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 15 Go to Step 13
13 Replace the instrument cluster.
Has the repair been completed? Go to Step 15 —
14 Replace the PIM.
Has the repair been completed? Go to step 15 —
15 1 Turn the ignition to the ON position.
2 Move the gear select lever through each gear position and check the PRND32L display.
Does each indicator display an off to on condition? System OK Go to step 2
When all diagnosis and repairs are completed, clear all DTCs and check the system for correct operation.
10.2 Warning Signal and Status Indicators Diagnostics
Circuit Description
The powertrain interface module (PIM) is connected to the instrument cluster by a series of hard wired connections to
illuminate the appropriate warnings and indicators within the instrument cluster. Some of these components do not set a
DTC, in the event of a component failure. The following diagnostic procedures are devised to assist in these cases.
Additional Information
• Refer to 7.2 Diagnostic System Check to monitor DTC’s.
• Refer to 8A Electrical Body and Chassis for the following information:
• Automatic transmission PRND32L switch and wiring,
• TCM wiring diagram.
• Refer to 6 W iring Diagram and Connector Chart for the following information:
• PIM connector illustration and terminal assignment, and
• PIM wiring diagram.
• For intermittent faults, refer to Intermittent Fault Conditions.
• Check for an intermittent fault in the wiring harness or connectors, if a fault cannot be found the system is
serviceable.
Test Description
The following numbers refer to the step numbers in the diagnostic table:
1 This step tests for DTC’s in the overall system.
2 This step manually tests the warning indicators.
5 This step uses Tech 2 to drive each status indicator on.
6 This step uses Tech 2 to drive each warning indicator on.
9 This step tests the wiring harness between the PIM and the Instrument Cluster.

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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 6E1–72

Remove
1 If replacing the PIM, reset the PIM prior to PIM removal. Refer to PIM Reset in this Section.
2 Turn the ignition switch off.
3 Remove Fuse EB-4, refer to 8A Electrical-Body and Chassis.
4 Remove the right-hand front body hinge pillar trim assembly, refer to 10 Cab.
5 Disconnect the wiring harness connector (1) from the powertrain interface module (PIM) (2).
6 Remove the bolt (3) attaching the PIM to the hinge pillar inner panel.

Figure 6E1 – 16
Reinstall
Reinstallation of the PIM is the reverse of the removal procedure, noting the following:
1 Tighten the attaching bolt to the correct torque specification.
PIM attaching bolt
torque specification ...................................8.0 – 12.0 Nm
2 If the PIM has been replaced, perform the following procedures: • PIM service programming, refer to 12.4 Immobiliser Link to ECM / PIM.
• PIM Configuration, refer to 12.3 PIM Configuration.
• Diagnostic system check, refer to 7.2 Diagnostic System Check.
3 Road test the vehicle and check for correct vehicle operation.

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ISUZU KB P190 2007

Powertrain Interface Module – V6 Page 6E1–73

11.3 Vertical Acceleration Sensor
Remove
1 Turn the ignition switch off.
2 Using a hoist raise the vehicle to a suitable working height.
3 Remove the VAS connector.
4 Remove the nut (1) securing the VAS to the mounting bracket.
5 Remove the VAS (2) from the mounting bracket.
Figure 6E1 – 17
Reinstall
Reinstallation of the VAS is the reverse of the removal procedure, noting the following:
1 Tighten the attaching nut to the correct torque specification.
VAS attaching nut
torque specification .................................12.0 – 16.0 Nm
2 Check the system for correct operation, refer to 7.2 Diagnostic System Check.
3 Road test the vehicle and check for correct vehicle operation.

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ISUZU KB P190 2007

Powertrain Interface Module – V6 Page 6E1–74

12 PIM Security and Programming
12.1 Security and Programming Information
Car Pass Card
W hen performing certain powertrain interface module (PIM) programming functions using Tech 2, you may be prompted
to enter a four digit Security Code (1). This information is found on the car pass card issued with the vehicle when new. If
the card is unavailable, contact the GM Holden Technical Assistance (TAS) centre to obtain the relevant Security Code.
Security Code
The security code is required when performing certain PIM, ICU and ECM programming functions. W hen Tech 2
requests the security code to be entered, and an incorrect code is entered, the PIM will go into a security wait time stage.
This wait time stage will prevent any further attempts to enter the security code until the wait time has elapsed.
Should a second incorrect security code be entered after the initial wait time has elapsed, the PIM will go into a second
wait time stage. The wait time will increase each time an incorrect code is entered. W hen the correct code is entered the
wait time will reset back to its original value of 10 seconds.
NOTE
The ignition switch must be in the ON position
with the battery connected during the wait time
period.
The wait time stages are as follows:
• Stage 1 = 10 seconds.
• Stage 2 = 10 seconds.
• Stage 3 = 10 minutes.
• Stage 4 = 20 minutes.
• Stage 5 = 40 minutes.
• Stage 5 = 80 minutes.

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 .

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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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