diagram ISUZU KB P190 2007 Workshop Repair Manual
[x] Cancel search | Manufacturer: ISUZU, Model Year: 2007, Model line: KB P190, Model: ISUZU KB P190 2007Pages: 6020, PDF Size: 70.23 MB
Page 46 of 6020
1-12 HEATER AND AIR CONDITIONING
WIRING DIAGRAM (4JA1-T)
RTW 78AXF008201
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Page 580 of 6020
4C2-2 SHIFT ON THE FLY SYSTEM
SHIFT ON THE FLY SYSTEM
Outline of Shift on The Fly System
The shift on the fly system switches between 2 wheel
drive (2W D) and 4 wheel drive (4W D) electrically b
y
driver's pressing the 4W D switch (push button type) on
instrument panel.
This system controls below operations.
1. Shifting the transfer front output gear (Connecting to,
and disconnecting from, front propeller shaft b
y
motor actuator).
2. Retrial of shifting the transfer front output gear.
3. Connecting front wheels to, and disconnecting them from, the front axles by axle motor actuator.
4. Indicator on instrument panel.
5. 4W D out signal to other Electronic Hydraulic Control Unit.
System Diagrams
RUW 34BLF000201
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Page 593 of 6020
BRAKE CON TROL SY STE M 5 A
EHCU, Brake Pipe Diagram .......................................................................................... 5A-5
Hydraulic Unit (H/U) ...................................................................................................... 5A-6
Normal Braking ............................................................................................................. 5A- 7
Pressure Isolation (Pressure Maintain)....................................................................... 5A-8
Pressure Reduction ...................................................................................................... 5A-9
Brake Release ............................................................................................................... 5A -10
Circuit Diagram ............................................................................................................. 5A -11
Connector List ............................................................................................................... 5 A-14
Parts Location ............................................................................................................... 5 A-16
EHCU Pin-Assignment .................................................................................................. 5A-20
System Components .................................................................................................... 5A-22
Electronic Hydraulic Control Unit (EHCU).............................................................. 5A-22
ABS Warning Lamp .................................................................................................. 5A-22
Wheel Speed Sensor (WSS) .................................................................................... 5A-22
G Sensor ................................................................................................................... 5A- 22
Normal and Anti-lock Braking ................................................................................. 5A-22
Electronic Brake-force Distribution (EBD) System................................................ 5A-23
Brake Pedal Travel ................................................................................................... 5A-23
Acronyms and Abbreviations....................................................................................... 5A-23
General Diagnosis ............................................................................................................. 5A-23
General Information ...................................................................................................... 5A-23
ABS Service Precautions ............................................................................................. 5A-23
Computer System Service Precautions ...................................................................... 5A-24
General Service Precautions ....................................................................................... 5A-24
Note on Intermittents .................................................................................................... 5A-24
Test Driving ABS Complaint Vehicles ......................................................................... 5A-24
"ABS" Warning Lamp ................................................................................................... 5A-25
Normal Operation .......................................................................................................... 5A-2 5
SECTION 5A
BRAKE CONTROL SYSTEM
TABLE OF CONTENTS
Ser vice Precau tion ............................................................................................................ 5A -3
General Descrip tio n........................................................................................................... 5A -4
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Page 598 of 6020
BRAKE CONTROL SYSTEM 5A-5
EHCU, Brake Pipe Diagram
This illustration is based on RHD model
RTW 75ALF000101
Legend
(1) Rear Brake Port (out) (4) Rear Brake Port (in)
(2) Front Right Brake Port (out) (5) Front Brake Port (in)
(3) Front Left Brake Port (out)
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Page 604 of 6020
BRAKE CONTROL SYSTEM 5A-11
Circuit Diagram
With 4JA1 engine
RTW 78AXF007201
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Page 704 of 6020
BRAKES 5C-5
PIPING DIAGRAM (MODEL WITH BLEND PROPORTIONING VALVE)
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Page 718 of 6020
BRAKES 5C-19
SERVICING
BLEND PROPORTIONING VALVE (IF SO EQUIPPED)
Structure and Operation
•
••
•
Structure
Side
a shows P-valve; side b shows bypass valve.
Bypass valve seals the routes
4 and 5 using the seal 2at
the piston
1 end.
In addition, spring
3 presses against the piston 1, and in
order to seal out the route
4 and route 5 sufficiently, spring
3 presses seal 2 against cylinder end surface.
The left figure is a characteristic curve diagram.
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Page 1004 of 6020
ENGINE ELECTRICAL 6D – 3
GENERAL DESCRIPTION
GENERATOR STARTER MOTOR
066L300004 065L300002
The basic charging system is the IC integral regulator charging system. The internal components are connected
electrically as shown in charging circuit diagram.
The generator features a solid state regulator that is mounted inside the generator. All regulator components are
enclosed into a solid mold, and this unit along with the brush holder assembly is attached to the slip ring end frame.
The generator voltage setting cannot be adjusted.
The starter motor circuit is composed of a 4-pole 4-brush type direct current series motor. The starter motor circuit
utilizes negative ground polarity.
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Page 1005 of 6020
6D – 4 ENGINE ELECTRICAL
CHARGING CIRCUIT DIAGRAM
RTW46DSH005101
STARTING CIRCUIT DIAGRAM
RTW46DSH005501
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Page 1034 of 6020
ENGINE ELECTRICAL 6D – 33
PRE-HEATING SYSTEM
INSPECTION AND REPAIR
Make the necessary adjustments, repairs, and part replacement if excessive wear of damage is discovered during
inspection.
VISUAL CHECK
Check the main fuses and glow indicator for damage.
Replace the part(s) if required.
GLOW RELAY
The glow relay is located in the relay box the engine
compartment.
825R300046
Use an ohmmeter to measure the resistance between
terminals No.2 and No.3.
If the measured value is outside the specified range, the
glow relay must be replaced.
Glow Relay Resistance Ohms
94 − 114
GLOW PLUG
LNW21KSH001401
Use a circuit tester to test the glow plugs for continuity.
Glow Plug Resistance (Reference) Ohms
Approximately 0.9
EGR SYSTEM 4JA1T (L)
Refer to 6F-9. (EGR system diagram)
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