reset ISUZU KB P190 2007 Workshop Manual PDF

Engine Management – V6 – Diagnostics Page 6C1-2–246

NOTE
After an ECU reset, the ignition switch must be
turned Off for at least 10 seconds and then
turned On for at least one minute, before
attempting communication between Tech 2 and
the ECU.
Preconditions: The four digit security code must be entered into Tech 2 and the theft deterrent system
must be disarmed and the ignition switched ‘On’ with a programmed remote coded key.
F2: Fuel Trim Reset : This function resets the fuel trim data values learned by the ECM.
F3: Throttle Body Relearn : In this mode, Tech 2 commands the throttle plate from its rest position to full closed
then to about 10% open. This procedure takes approximately 6 – 8 seconds. At the start of this procedure,
the Tech 2, ‘Electronic Throttle Control Learn Counter’ parameter should display ‘0’ then count up to 11, after
the procedure is completed. If the counter does not start at ‘0’, nor display a count of ‘11’ at the conclusion of
the procedure, a fault has occurred and a DTC will set.


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Engine Management – V6 – Service Operations Page 6C1-3–2

Reinstall ................................................................................................................................................................ 20
ECM Reset ...................................................................................................................... ...................................... 20
2.8 Engine Control Module Bracket Assembly......................................................................................... ............... 21
Remove ................................................................................................................................................................. 21
Reinstall ................................................................................................................................................................ 21
2.9 Engine Oil Level and Temperature Sensor ........................................................................................ ................ 22
Remove ................................................................................................................................................................. 22
Test ....................................................................................................................................................................... 23
Engine Oil Level Sensor Check .................................................................................................. ...................... 23
Reinstall ................................................................................................................................................................ 23
2.10 Engine Oil Pressure Sensor..................................................................................................... ........................... 23
Remove ................................................................................................................................................................. 23
Reinstall ................................................................................................................................................................ 24
2.11 Evaporative Emission (EVAP) Canister Purge Valve Quick Connect Fittings ................................................ 24
Disconnect..................................................................................................................... ....................................... 24
Locking Lever Type ............................................................................................................. ............................. 25
Latch Type ....................................................................................................................................................... 25
Connect ............................................................................................................................................................ 25
2.12 Evaporative Emission Canister Purge Valve ...................................................................................... ............... 26
Remove ................................................................................................................................................................. 26
Test ....................................................................................................................................................................... 27
Resistance Check ............................................................................................................... ............................. 27
Functional Test................................................................................................................................................. 27
Reinstall ................................................................................................................................................................ 28
2.13 Fuel Rail Assembly ............................................................................................................. ................................. 28
Remove ................................................................................................................................................................. 28
Disassemble ......................................................................................................................................................... 30
Fuel Injector ..................................................................................................................................................... 30
Fuel Injector Wiring Harness Assembly.......................................................................................... .................. 32
Reinstall ................................................................................................................................................................ 33
2.14 Heated Oxygen Sensor........................................................................................................... ............................. 33
Service Precautions............................................................................................................................................. 33
Six Wire Sensor................................................................................................................................................ 34
Four Wire Sensor ............................................................................................................... .............................. 35
Test ....................................................................................................................................................................... 37
Heater Resistance Check – Six Wire HO2S........................................................................................ ............. 37
Heater Resistance Check – Four Wire HO2S ....................................................................................... ........... 37
2.15 Ignition Coil .......................................................................................................................................................... 38
Ignition Coils ................................................................................................................. ....................................... 38
Remove ............................................................................................................................................................ 38
Disassemble..................................................................................................................................................... 39
Reassemble ..................................................................................................................................................... 39
Test .................................................................................................................................................................. 39
Reinstall ........................................................................................................................................................... 40
2.16 Intake Air Duct Assembly....................................................................................................... ............................. 40
Remove ................................................................................................................................................................. 40
Reinstall ................................................................................................................................................................ 40
2.17 Intake Air Temperature Sensor .................................................................................................. ......................... 41
Test ....................................................................................................................................................................... 41
Resistance Check ............................................................................................................... ............................. 41
2.18 Knock Sensor, Bank 2 (LHS)..................................................................................................... .......................... 42
Remove ................................................................................................................................................................. 42
Reinstall ................................................................................................................................................................ 43
2.19 Knock Sensor, Bank 1 (RHS) ..................................................................................................... ......................... 43
Remove ................................................................................................................................................................. 43
Reinstall ................................................................................................................................................................ 44
2.20 Mass Air Flow Sensor........................................................................................................... ............................... 45
Handling Precautions .......................................................................................................................................... 45
Remove ................................................................................................................................................................. 45
Reinstall ................................................................................................................................................................ 46

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Engine Management – V6 – Service Operations Page 6C1-3–19

Remove

If replacing the ECM, it must be reset prior to
removal. Failure to perform this procedure
will result in the inability to test the ECM for
warranty purposes, refer to ECM Reset in this
Section.
1 Turn the ignition switch off.
2 Disconnect the battery.
3 Disconnect the engine harness connector (1) and the front body harness connector (2) from the ECM (3). To release each connector, lift the connector locking lever (4) whilst simultaneously pushing the connector locking
slide (5), refer to Figure 6C1-3 – 15.

Figure 6C1-3 – 15
4 Remove the screw (1) attaching the ground terminal (2) to the ECM (3).
5 Remove the bolt (4), four places, attaching the ECM to the mounting bracket (5) and remove the ECM.
Figure 6C1-3 – 16

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Engine Management – V6 – Service Operations Page 6C1-3–20

Reinstall
Reinstallation of the engine control module (ECM) is the reverse of the removal procedure, noting the following:
NOTE
During installation of the ECM, the
SICHTMUSTER ME 9.6 label (1) is positioned at
the top right-hand corner.
1 Reinstall ECM attaching bolts and tighten to the correct torque specification.
Engine control module attaching bolt
torque specification ...................................8.0 – 12.0 Nm
2 Reinstall the ground terminal screw and tighten to the correct torque specification.
Ground terminal attaching screw
torque specification ..............................................4.5 Nm
Figure 6C1-3 – 17
3 Reinstall the main vehicle wiring harness connector, and engine wiring harness connector, ensuring the connector locking lever is fully seated, refer to Figure 6C1-3 – 15.
4 If the ECM has been replaced, perform the following procedures:
• ECM service programming, 6E1 Powertrain Interface Module – V6.
• ECM / PIM / ICU security link, refer to 6E1 Powertrain Interface Module – V6.
• Main diagnostic table functional check, refer to 6C1-2 Engine Management – V6 – Diagnostics.
5 If the ECM has been removed, but not replaced, perform the main diagnostic table functional check, refer to 6C1-2 Engine Management – V6 – Diagnostics.
6 Start the vehicle and allow to idle.
ECM Reset

Do not perform the reset procedure within
sixty seconds of turning the ignition on.
Failure to comply may result in the ECM
failing to reset.
W hen an ECM is installed onto a vehicle, it is security linked to the Immobiliser Control Unit (ICU) and powertrain
interface module (PIM). Once this linking has been performed, the ECM cannot be installed in any other vehicle unless
the security linking between the ICU and the PIM has been reset using the following procedure.
NOTE
Prior to resetting the ECM, obtain the Security
Code. This information is found on the vehicle
security card issued with the vehicle when new.
For further information on the vehicle security
card, refer to 6E1 Powertrain Interface Module –
V6.
1 Connect Tech 2 to the data link connector (DLC) and turn the ignition on.
2 On Tech 2 select Engine / V6 Engine / Programming / Reset ECU .

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ISUZU KB P190 2007

Engine Management – V6 – Service Operations Page 6C1-3–21

NOTE
When Tech 2 requests programming approval,
obtain TIS approval.
3 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 ECM has
been reset.
4 W hen Tech 2 displays Do you really want to Reset? , press the Reset soft key.
5 W hen Tech 2 displays Stop Engine - Turn Off Ignition , turn the ignition off and press the Confirm soft key.
6 W hen Tech 2 displays Turn Ignition On, turn the ignition on and press the Confirm soft key.
7 W hen Tech 2 displays Reset Completed Successfully , press the Confirm soft key to return to the Tech 2
Programming screen.
2.8 Engine Control Module Bracket Assembly
Remove
1 Remove the engine control module (ECM), refer to 2.7 Engine Control Module.
2 Remove the bolt (1) and the two bolts (2), attaching the ECM bracket assembly (3) to the front engine
cover and remove.
Figure 6C1-3 – 18
Reinstall
Reinstallation of the engine control module (ECM) bracket assembly is the reverse of the removal procedure, noting the
following:
1 Tighten the ECM bracket assembly bolts to the correct torque specification.
Engine control module bracket
assembly attaching bolt
torque specification (6mm)........................7.5 – 10.5 Nm
Engine control module bracket
assembly attaching bolt
bolt torque specification (8mm) ...............19.0 – 25.0 Nm
2 Perform the main diagnostic table functional check, refer to 6C1-2 Engine Management – V6 – Diagnostics.

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ISUZU KB P190 2007

Charging System – V6 Page 6D1-1-5

• 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,
• Faulty operation or performance of any system or component being repaired,
• Damage to any system or components which depend on the proper operation of the system or component being
repaired,
• Faulty operation or performance of any systems or components which depend on the proper operation or
performance of the system or component under repair,
• Damage to fasteners, basic tools or special tools and / or
• Leakage of coolant, lubricant or other vital fluids.
NOTE defined
A NOTE statement immediately precedes or follows an operating procedure, maintenance practice or condition that
requires highlighting. A NOTE statement also emphasises necessary characteristics of a diagnostic or repair procedure.
A NOTE statement is designed to:
• Clarify a procedure,
• Present additional information for accomplishing a procedure,
• Give insight into the reasons for performing a procedure in the recommended manner, and / or
• Present information that gives the technician the benefit of past experience in accomplishing a procedure with
greater ease.

1.3 System Operation
Operation
W ith the ignition switch in the ON position and the engine at rest, current is supplied via the regulator to generator
connector E-4 pin 1 and to the engine control module ECM connector E-60 pin 43. This initiates current flow (within the
regulator) from the generator connection P-9, to the brushes and rotor winding, to ‘excite’ the circuit.
The current in the rotor winding creates magnetic fields between adjacent rotor poles.
W ith the engine running, the rotor spins, the stator windings cut through this field and induce voltage. As the engine
speed is increased, this induced voltage increases. Current then flows through the three-phase diode bridge in the
rectifier to convert the AC voltage to DC. This is supplied to the generator connector P-9 output and then to the battery
terminal via fuse SBF1.
The regulator monitors the voltage to the battery. W hen this voltage reaches approximately 14.5 V, the regulator opens
the circuit through the rotor winding, causing the generator output voltage to drop. W hen the regulator senses a voltage
below a preset voltage, the regulator closes the circuit through the rotor winding and voltage to the battery again
increases. This cycle repeats very rapidly.

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ISUZU KB P190 2007

Powertrain Interface Module – V6 Page 6E1–5

12.1 Security and Programming Information............................................................................................................. 74
Car Pass Card ...................................................................................................................................................... 74
Security Code ....................................................................................................................................................... 74
Tech 2 PIM Security Information Data List ...................................................................................... .................. 74
12.2 PIM Reset Procedure ........................................................................................................................................... 75
12.3 PIM Configuration ................................................................................................................................................ 76
Configuring the PIM ............................................................................................................ ................................. 76
Programming the VIN ............................................................................................................ .............................. 76
12.4 Immobiliser Link to ECM / PIM .................................................................................................. .......................... 77
13 Powertrain Interface Module – Tech 2 Functions .............................................................................79
13.1 Introduction .......................................................................................................................................................... 79
13.2 Tech 2 Functions ............................................................................................................... .................................. 79
F0: Diagnostic Trouble Codes ................................................................................................... ......................... 79
F1: Diagnostic Data Display................................................................................................................................ 79
F2: Snapshot Options.......................................................................................................................................... 80
F3: Miscellaneous Tests........................................................................................................ .............................. 80
F4: Additional Functions ..................................................................................................................................... 80
F5: Program .......................................................................................................................................................... 80
F6: Security .......................................................................................................................................................... 80
13.3 Powertrain Interface Module Data List .......................................................................................... ..................... 81
Diagnostic Data Display ...................................................................................................................................... 81
13.4 Miscellaneous Tests ............................................................................................................................................ 82
F0: Warnings ........................................................................................................................................................ 82
F1: Status Indicators .......................................................................................................... ................................. 82
F2: Gauge Control Tests ........................................................................................................ ............................. 82
13.5 Security................................................................................................................................................................. 83
F0: Immobiliser Link To ECM/PIM ................................................................................................ ...................... 83
F1: Reset PIM ....................................................................................................................................................... 83
F2: Security Information ....................................................................................................... ............................... 83
14 Specifications .......................................................................................................................................85
15 Torque Wrench Specifications................................................................................................... .........86
16 Special Tools ........................................................................................................................................87

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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 6E1–74

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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