2007 ISUZU KB P190 ECU

Starting System – V6 Page 6D1-2–24

No Load Test
1 Clamp the starter motor securely to a test bench.
2 Connect the starter motor as shown in Figure 6D1-2 – 18, Close the start switch to activate the starter motor.
4 Record the speed of the planetary drive shaft, current draw and the voltage.
5 Check the readings are within the specifications.
Minimum r.p.m. ....................................................... 2370
Maximum current draw ............................................ 90 A
M Terminal voltage ......................................... 12 ± 0.1 V
6 Disassemble and service the starter motor if the readings are not within the specifications, refer to 4.4 Starter
Motor Disassemble and Reassemble.

Figure 6D1-2 – 18
Legend
1 Battery
2 Carbon Pile
3 Shaft Speed Indicator
4 Multimeter set to measure current
5 Multimeter set to measure voltage 6 Start Switch
7 Solenoid Switch P – 3 pin 1
8 Solenoid Switch P – 4 pin B
9 Solenoid Switch M terminal

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Battery Page 6D1-3–9

8 Ensure the battery hold-down bolts (2 & 3) and bracket
(1) firmly secure the battery.
Battery hold-down bolt
torque specification ...................................8.0 – 10.0 Nm
9 Check the cable insulation for damage or wear along the cable. Replace the cable as required.
10 Check the cables do not have broken or frayed strands and are secure in the terminals. Repair as
required.
Figure 6D1-3 – 3
11 Ensure the terminal clamp (2) sits below the top of the battery post (1).
12 Check the terminal clamps are attached to the battery posts securely. Replace the terminals as required.
13 Tighten the terminal clamp nuts to the correct torque specification.
Battery terminal nut
torque specification .....................................2.0 – 5.0 Nm
14 Smear the battery posts and terminals with petroleum jelly to resist corrosion.
Figure 6D1-3 – 4
3.3 Hydrometer Test
As a lead-acid battery discharges, sulphur elements in the electrolyte move from the electrolyte solution into the lead
battery plates. This removes the sulphuric acid from the electrolyte and changes it to water. Therefore the concentration
of sulphuric acid in the electrolyte indicates the state of charge.
The concentration of sulphuric acid can be measured using a hydrometer. The state of charge is measured in terms of
specific gravity; the lower the specific gravity reading, the lower the state of charge.
NOTE
If distilled water has been added to the battery,
do not use the hydrometer until the battery has
been charged for at least 30 minutes.
1 Read and obey the safety precautions for working with batteries, refer to 2 Safety Precautions.
2 Remove the battery filler caps.
3 Force the air out of the hydrometer bulb.
4 Hold the hydrometer vertically in the cell with the pick-up tube submerged.
5 Draw in sufficient liquid to lift the hydrometer float freely when the bulb is fully released.

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Battery Page 6D1-3–12

9 Lock the doors and activate the theft deterrent system to arm the vehicle.
10 If the multimeter contains fuses, check they are serviceable.
Test Procedure
1 Switch the multimeter to the mA current range (1).
2 Connect the positive test lead (2) to the fused mA terminal of the multimeter.
3 Connect the negative test (3) lead to the common terminal of the multimeter.
4 Connect large alligator clips to the ends of both test leads.
Figure 6D1-3 – 7
5 Connect the negative test lead clip to the threads of the battery negative terminal clamp (1).
6 Connect the positive lead’s clip to the threads of a convenient engine bolt (2).

Do not turn on the ignition switch while this
test is in progress. It will blow the
multimeter’s low current fuse.
7 Check the multimeter connections are secure.
8 Disconnect the vehicle’s main electrical earth by removing the battery negative terminal cable retaining
nut (3) and separating the cable from the battery
clamp.
Figure 6D1-3 – 8
9 Read the vehicle’s battery saver current on the multimeter. The multimeter reading should be within 16 – 30 mA (fluctuating).
10 If the multimeter reading is higher than specified, refer to Fault Diagnosis in this Section, otherwise restore the vehicle to its prior condition, refer to Restore in this Section.
Fault Diagnosis

Do not open any doors during this inspection.
If the doors must be opened, reinstall the
battery terminal to the battery clamp to
protect the multimeter's fuse from blowing.
Alternatively, use the higher (10 A) fuse rated
terminal on the multimeter until the source of
the higher current draw has been found.
1 Visually inspect the vehicle for illuminated lamps and components activated by energised relays.
2 If the cause of the excessive current draw is not apparent, remove one fuse (or circuit breaker) at a time to determine the circuit group that is drawing excess current. Refer to 8A Electrical Body & Chassis for fuse grouping
location.

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Battery Page 6D1-3–13

3 W hen the circuit group is determined, install the fuse / circuit breaker and identify the specific circuit within this
group that is drawing the excess current. Disconnect the wiring harness connectors in this circuit group one at a
time. Refer to 8A Electrical Body & Chassis.
4 W hen the cause is disconnected, the multimeter reading should drop to the correct reading as outlined in Step 9 of the Test Procedure in this Section.
5 If required, remove the components in this circuit one at a time to determine the cause of the excessive standing current. Refer to 8A Electrical Body & Chassis.
6 Repair the fault, refer to 8A Electrical Body & Chassis.
7 Ensure any fuses, circuit breakers and connectors that have been removed are secure.
Restore
1 Reconnect the electrical earth cable to the battery terminal and tighten the nut to the correct torque specification.
Battery terminal nut
torque specification .....................................2.0 – 5.0 Nm
2 Disconnect the multimeter connections.

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Battery Page 6D1-3–16

NOTE
Charging a battery at higher current rates can
significantly reduce the life of the battery.
Charge Rate Initial Current Maximum Time Required
Slow charge 4 A 24 hours
Fast charge 35 A 2 hours
6 After a few minutes, check the colour and specific gravity of the electrolyte. Refer to 3.3 Hydrometer Test.
7 Monitor the electrolyte temperature while the battery is charging. If the electrolyte temperature reaches 55 °C:
a switch the charging current off,
b allow the battery to cool,
c reduce the charging current, and
d restart charging the battery.
NOTE
For the best results, charge the battery with the
electrolyte and plates at room temperature. An
extremely cold battery may not appear to accept
current for several hours after starting the battery
charger. If the battery does not appear to accept
charge after several hours replace the battery.
8 For slow charging check the voltage and specific gravity each hour or more regularly for fast charging. Stop the charging when there is no change in voltage or electrolyte specific gravity over three checks.
9 If the battery was fast charged connect the battery to a slow-charger for a few hours to bring the battery to the fully charged condition. Ensure the last few hours of charge do not exceed 1 A.
10 Tighten the filler caps. Ensure they are secure.
11 Install the battery in the vehicle. Refer to 4.1 Battery.
4.3 Emergency Jump Starting Procedure
Safety Precautions
• Read and obey the general safety precautions for working with batteries, refer to 2 Safety Precautions.
• Do not allow the vehicles to touch each other during the jump starting procedure.
• Ensure the assisting vehicle battery has the same voltage rating and connects negative to ground. If this is not the
case, serious injury and damage to electrical equipment can result.
• Do not push or tow the vehicle to start it. Damage can result when unburnt fuel reaches the catalytic converter and
ignites.
• Do not start the vehicle using a fast charger.
• W hen using jumper leads, treat both the booster battery and the discharged battery with care.
• Do not allow sparks, flame or smoking near the battery.
• Ensure that metal tools or jumper cables do not simultaneously contact the battery positive terminal and any other
metal part of the vehicle.
Jump Starting Procedure
1 Position the assisting vehicle so the batteries of both vehicles are close together, refer to Figure 6D1-3 – 10.
2 Apply the park brake on both vehicles.
3 Ensure that P (park) is selected for automatic transmission and N (neutral) is selected for manual transmissions.

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ISUZU KB P190 2007

Powertrain Interface Module – V6 Page 6E1–4

Conditions for Setting the DTC........................................................................................................................... 56
Conditions for Clearing the DTC ................................................................................................ ........................ 56
Additional Information......................................................................................................................................... 56
DTC P0633 Diagnostic Table..................................................................................................... .......................... 56
9.15 DTC P1611 – Wrong Security Code Entered........................................................................................ .............. 57
DTC Description ................................................................................................................................................... 57
Circuit Description ............................................................................................................................................... 57
Additional Information......................................................................................................... ................................ 57
Conditions for Running the DTC ................................................................................................. ....................... 58
Conditions for Setting the DTC........................................................................................................................... 58
Action Taken When the DTC Sets ................................................................................................. ..................... 58
Conditions for Clearing the DTC ........................................................................................................................ 58
Test Description ................................................................................................................................................... 58
DTC P1611 Diagnostic Table..................................................................................................... .......................... 58
9.16 DTC B0981 – 3rd Start Switch Signal Malfunction ............................................................................................. 59
DTC Description ................................................................................................................................................... 59
Circuit Description ............................................................................................................................................... 59
Additional Information......................................................................................................... ................................ 59
Conditions for Running the DTC ................................................................................................. ....................... 59
Conditions for Setting the DTC........................................................................................................................... 60
Action Taken When the DTC Sets ................................................................................................. ..................... 60
Conditions for Clearing the DTC ........................................................................................................................ 60
Test Description ................................................................................................................................................... 60
DTC B0980 Diagnostic Table ..................................................................................................... ......................... 60
10 Diagnostics For Non DTC Faults ................................................................................................. .......62
10.1 PRND32L Display Diagnostics ............................................................................................... ................................ 62
Circuit Description ............................................................................................................................................... 62
Additional Information......................................................................................................... ................................ 62
Test Description ................................................................................................................................................... 62
PRND32L Display Diagnostic Table ............................................................................................... .................... 63
10.2 Warning Signal and Status Indicators Diagnostics.......................................................................... .................... 64
Circuit Description ............................................................................................................................................... 64
Additional Information......................................................................................................... ................................ 64
Test Description ................................................................................................................................................... 64
Hard-wired Warning Signals ..................................................................................................... .......................... 65
Warning Signal and Status Indicator Diagnostic Table ........................................................................... ......... 65
10.3 Tachometer Diagnostics......................................................................................................................................... 67
Circuit Description ............................................................................................................................................... 67
Additional Information......................................................................................................... ................................ 67
Test Description ................................................................................................................................................... 67
Tachometer Diagnostic Table .................................................................................................... ......................... 67
10.4 Temperature Gauge Diagnostics ............................................................................................. .............................. 69
Circuit Description ............................................................................................................................................... 69
Additional Information......................................................................................................... ................................ 69
Test Description ................................................................................................................................................... 69
Temperature Gauge Diagnostic Table ............................................................................................. .................. 70
11 Service Operations ...............................................................................................................................71
11.1 Safety and Precautionary Measures .................................................................................................................. 71
11.2 Powertrain Interface Module ............................................................................................................................... 71
Remove ................................................................................................................................................................. 72
Reinstall ................................................................................................................................................................ 72
11.3 Vertical Acceleration Sensor ................................................................................................... ........................... 73
Remove ................................................................................................................................................................. 73
Reinstall ................................................................................................................................................................ 73
12 PIM Security and Programming ................................................................................................... .......74

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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 6E1–6

1 General Information
A powertrain interface module (PIM) is fitted that incorporates the following functionality:
• Communication protocol between the engine control module (ECM) and transmission control module (TCM) is
General Motors Local Area Network (GM LAN).
• Communication protocol between the PIM and immobiliser control unit is keyword 2000.
• ECM to PIM and PIM to immobiliser control unit (ICU) authentication for vehicle security.
• The following switches, where fitted, input directly into the PIM:
• Automatic transmission power mode switch.
• Automatic transmission 3
rd gear start switch.
• Cruise control switch.
1.1 General Description
Serial Data Communication
The various electronic control modules communicate with each other through the serial data bus. The ECM and TCM
communicate on the serial data bus using the GM LAN communication protocol. Figure 6E1 – 2 shows the serial data
layout.
NOTE
Serial data components shown in Figure 6E1 – 2
will vary depending on vehicle options.
Bus
A bus is a physical circuit or circuits which provides a communication path between two or more control modules.
GM LAN Serial Data Bus
The GM LAN bus is a two wire circuit (1), refer to Figure 6E1 – 1. The GM LAN bus circuits are terminated with cut-off
resistors (2) which are located inside the two control modules at either end of the bus circuit. The purpose of these cut-off
resistors is to prevent data from returning as an echo after reaching the end of the GM LAN bus circuit.
NOTE
• For illustration purposes, the cut-off resistors
are shown outside of the control modules.
• The two control modules with the cut-off
resistors are the PIM and the ECM.

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