2007 ISUZU KB P190 service

7D-2 TRANSFER CASE
Service Precaution
WARNING: THIS VEHICLE HAS A SUPPLEMENTAL
RESTRAINT SYSTEM (SRS). REFER TO THE SRS
COMPONENT AND WIRING LOCATION VIEW IN
ORDER TO DETERMINE WHETHER YOU ARE
PERFORMING SERVICE ON OR NEAR THE SRS
COMPONENTS OR THE SRS WIRING. WHEN YOU
ARE PERFORMING SERVICE ON OR NEAR THE SRS
COMPONENTS OR THE SRS WIRING, REFER TO
THE SRS SERVICE INFORMATION. FAILURE TO
FOLLOW WARNINGS COULD RESULT IN POSSIBLE
AIR BAG DEPLOYMENT, PERSONAL INJURY, OR
OTHERWISE UNNECESSARY SRS SYSTEM
REPAIRS.
CAUTION: Always use the correct fastener in the
proper location. When you replace a fastener, use
ONLY the exact part number for that application.
ISUZU/GM will call out those fasteners that require a
replacement after removal. ISUZU/GM will also call
out the fasteners that require thread lockers or
thread sealant. UNLESS OTHERWISE SPECIFIED,
do not use supplemental coatings (Paints, greases,
or other corrosion inhibitors) on threaded fasteners
or fastener joint interfaces. Generally, such coatings
adversely affect the fastener torque and the joint
clamping force, and may damage the fastener. When
you install fasteners, use the correct tightening
sequence and specifications. Following these
instructions can help you avoid damage to parts and
systems.


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ISUZU KB P190 2007

7D-4 TRANSFER CASE
On-Vehicle Service
Transfer Case Oil Level

RTW 67DMF000101
Legend

(1) Transfer Case
(2) Filler Plug and O-ring

Removal
1. Disconnect the battery ground cable.
2. Rise and support the vehicle with suitable stands.
3. Remove the filler plug and O-ring.
4. Check the oil level reaches the filler hole.
5. If the oil level is low, fill the transfer oil (5W -30) o
r
equivalent to the transfer through the filler hole.

Installation

1. Replace the filler plug and O-ring tighten it to the
specified torque.
Filler plug torque: 39 N ⋅
⋅⋅
⋅
m (4.0 kgf ⋅
⋅⋅
⋅
m/29 lb ⋅
⋅⋅
⋅
ft)
2. Lower the vehicle to the ground.
3. Connect the battery ground cable.



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ISUZU KB P190 2007

TRANSFER CONTROL SYSTEM 7D1-1
SECTION 7D1
TRANSFER CONTROL SYSTEM
TABLE OF CONTENTS
PAGE
Service Precaution ..................................................................................................... 7D1 - 2
General Description ................................................................................................... 7D1 - 3
System Components .................................................................................................. 7D1 - 5 Parts Location ....................................................................................................... 7D1 - 5
Functions of Switch and Indicator Lamp ................................................................. 7D1 - 12
Parts Location ............................................................................................................ 7D1 - 24
Circuit Diagram ........................................................................................................... 7D1 - 33
Connector List ............................................................................................................ 7D1 - 41
Diagnosis .................................................................................................................... 7D1 - 46
Before determining a trouble (Non-trouble mode) ............................................ 7D1 - 46
Memory erasing procedure ....................................................................................... 7D1 - 52
Diagnosis from symptom ........................................................................................... 7D1 - 54




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ISUZU KB P190 2007

7D1-2 TRANSFER CONTROL SYSTEM

Service Precaution
WARNING:
THIS VEHICLE HAS A SUPPLEMENTAL RESTRAINT
SYSTEM (SRS). REFER TO THE SRS COMPONENT AND
WIRING LOCATION VIEW IN ORDER TO DETERMINE
WHETHER YOU ARE PERFORMING SERVICE ON OR
NEAR THE SRS COMPONENTS OR THE SRS WIRING.
WHEN YOU ARE PERFORMING SERVICE ON OR NEAR
THE SRS COMPONENTS OR THE SRS WIRING, REFER TO
THE SRS SERVICE INFORMATION. FAILURE TO FOLLOW
WARNINGS COULD RESULT IN POSSIBLE AIR BAG
DEPLOYMENT, PERSONAL INJURY, OR OTHERWISE
UNNECESSARY SRS SYSTEM REPAIRS.

CAUTION:
Always use the correct fastener in the proper location.
When you replace a fastener, use ONLY the exact part
number for that application. ISUZU/GM will call out those
fasteners that require a replacement after removal.
ISUZU/GM will also call out the fasteners that require
thread lockers or thread sealant. UNLESS OTHERWISE
SPECIFIED, do not use supplemental coatings (Paints,
greases, or other corrosion inhibitors) on threaded
fasteners or fastener joint interfaces. Generally, such
coatings adversely affect the fastener torque and the joint
clamping force, and may damage the fastener. When you
install fasteners, use the correct tightening sequence and
specifications. Following these instructions can help you
avoid damage to parts and systems.


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ISUZU KB P190 2007

8A-140 ELECTRICAL-BODY AND CHASSIS
REMOVAL AND INSTALLATION

ECM (ENGINE CONTROL MODULE);
C24SE

Removal
1. Lift both the ECM harness connector locking levers and
remove the two harness connectors form the ECM.
2. Remove the four socket head screws securing the ECM to the mounting bracket.
3. Remove the ECM from the engine compartment .


4. Pull out the ECM.
5. Disconnect both red and tan connectors.
Refer to the Section 6E-ENGINE of this Manual.
IMPORTANT: The replacement ECM must be programmed.
“SPS (Service Programming System) and immobilizer
programming (if equipped) is/are necessary”





Installation
Follow the removal procedure in the reverse order to install the
ECM.
Pay close attention to the important points mentioned in the
following paragraphs.



Connector
Be absolutely sure that ECM is securely connected.
This will prevent a poor contact and open circuit.



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ELECTRICAL-BODY AND CHASSIS 8A-141
REMOVAL AND INSTALLATION

ECM (ENGINE CONTROL MODULE);
4JH1-TC


Removal
1. Remove the passenger side front seat – refer to Section 10
CAB.
2. Remove the passenger side front door opening scuff plate.
3. Raise the carpet to gain access to the four hex-head bolts securing the ECM and ECM cover to the floor pan .
4. Remove the four hex-head bolts.
5. Pull the two harness connector locks away from the harness connectors and then remove the connectors form
the ECM.
6. Remove the ECM from the vehicle.
Refer to the Section 6E-ENGINE of this Manual.
IMPORTANT: The replacement ECM must be programmed.
“SPS (Service Programming System) and immobilizer
programming (if equipped) is/are necessary”







Installation
Follow the removal procedure in the reverse order to install the
ECM.
Torque passenger seat securing bolts to the specified value –
refer to Section 10 CAB
Pay close attention to the important points mentioned in the
following paragraphs.



Connector
Be absolutely sure that ECM is securely connected.
This will prevent a poor contact and open circuit.



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Cruise Control – HFV6 Page 8C–1
8C
Cruise Control – HFV6
ATTENTION
Before performing any Service Operation or other procedure described in this Section, refer to General Information Warnings, Cautions and Notes for correct workshop practices with regard to safety and/or property damage.
1 General Information ...............................................................................................................................3
1.1 WARNINGS, CAUTIONS and NOTES................................................................................................... ................. 3
Definition of WARNING, CAUTION and NOTE Statements ............................................................................. .... 3
WARNING Defined............................................................................................................................................. 3
CAUTION Defined .............................................................................................................................................. 3
NOTE Defined .................................................................................................................................................... 4
1.2 System Components .............................................................................................................. ............................... 4
Cruise Control Switch Assembly ................................................................................................. ....................... 5
Instrument Cluster Assembly ............................................................................................................................. 5
Clutch Pedal Switch (Manual Only) .............................................................................................. ...................... 5
Stop Lamp Switch Assembly .............................................................................................................................. 5
Powertrain Interface Module .............................................................................................................................. 6
Engine Control Module ....................................................................................................................................... 6
Throttle Actuator Control (TAC) Assembly ....................................................................................... .................. 6
1.3 System Operation .................................................................................................................................................. 6
Preliminary Information......................................................................................................................................... 6
Enabled and Disabled ........................................................................................................... ............................. 6
Activated and Deactivated...................................................................................................... ............................ 7
Enabling the Cruise Control.................................................................................................... .............................. 7
Brake Before Cruise .............................................................................................................................................. 7
Activating the Cruise Control .................................................................................................. ............................. 7
Deactivating the Cruise Control ................................................................................................ ........................... 7
Pressing the Brake Pedal ................................................................................................................................... 7
Pressing the Cruise ON–OFF Button .............................................................................................. ................... 8
Rotating the Cruise Control Switch Assembly .................................................................................... ................ 8
Pressing the Clutch Pedal (Manual Vehicles Only) ............................................................................... ............. 8
Decelerating While Cruise Control is Activated ................................................................................. ................. 8
Resuming a Speed After Cruise Control Has Been Deactivated ..................................................................... .. 8
Accelerating While Cruise Control is Activated .................................................................................................. 8
Using the Cruise Control Switch Assembly ........................................................................................................ 8
Pressing the Accelerator Pedal .......................................................................................................................... 8
2 Diagnostics .............................................................................................................................................9
2.1 Diagnostic General Information............................................................................................................................ 9
Basic Knowledge Required ................................................................................................................................... 9
Basic Diagnostic Tools Required ......................................................................................................................... 9
Tech 2 Data List ................................................................................................................................................... 10
2.2 Diagnostic Systems Check ....................................................................................................... .......................... 10
Diagnostic Systems Check ................................................................................................................................. 10
2.3 Wiring Diagrams .................................................................................................................................................. 12
2.4 Cruise Control Inoperative / Malfunctioning.................................................................................... .................. 14
Circuit Description ............................................................................................................................................ 14
Manual Vehicles Only........................................................................................................... ............................ 14
Test Description ............................................................................................................................................... 14
Diagnostic Table Notes ......................................................................................................... ........................... 14
Diagnostic Table............................................................................................................................................... 14
SECTION
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Cruise Control – HFV6 Page 8C–2
3 Service Operations ...............................................................................................................................20
3.1 Cruise Control Main Switch ..................................................................................................... ........................... 20
Remove ................................................................................................................................................................. 20
Test ....................................................................................................................................................................... 20
Terminal Testing............................................................................................................................................... 20
Reinstall ................................................................................................................................................................ 20
3.2 Cruise Control Switch Assembly........................................................................................................................ 21
Remove ................................................................................................................................................................. 21
Test ....................................................................................................................................................................... 21
Terminal Testing............................................................................................................................................... 21
Reinstall ................................................................................................................................................................ 21
3.3 Stop Lamp Switch Assembly .............................................................................................................................. 22
Remove ................................................................................................................................................................. 22
Test ....................................................................................................................................................................... 22
Terminal Testing............................................................................................................................................... 22
Reinstall ................................................................................................................................................................ 22
3.4 Clutch Pedal Switch (Manual Only) .................................................................................................................... 24
Remove ................................................................................................................................................................. 24
Test ....................................................................................................................................................................... 24
Reinstall ................................................................................................................................................................ 25
4 Special Tools ........................................................................................................................................26
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ISUZU KB P190 2007