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[x] Cancel search | Manufacturer: ISUZU, Model Year: 2007, Model line: KB P190, Model: ISUZU KB P190 2007Pages: 6020, PDF Size: 70.23 MB
Page 2519 of 6020

Engine Mechanical – V6 Page 6A1–40
Cause Correction
W orn valve guides and or valve stems. Inspect and repair valves and valve guides as required,
refer to 3.22 Cylinder Head Assembly.
W orn or damaged valve stem oil seal. Replace valve stem oil seals as required, refer to 3.22
Cylinder Head Assembly.
Piston rings broken, worn or not seated correctly. Allowing adequate time for the piston rings to seat correctly,
replace piston rings as required, refer to 4.5 Pistons, Pins,
Rings, Connecting Rods and Big-end Bearings.
Piston rings incorrectly installed or not matched to cylinder
bore oversize. Replace piston rings as required, refer to 4.5 Pistons, Pins,
Rings, Connecting Rods and Big-end Bearings.
2.18 Engine Oil Leak Diagnosis
Introduction
It is important to correctly identify the source of an engine oil leak. For example, a power steering fluid leak or spillage
during servicing can travel across the valley area of the engine and run-out the weep hole, which is located at the back of
the cylinder block. Failure to correctly identify the source of an engine oil leak can lead to unnecessary replacement of
engine components.
Most fluid leaks can be repaired by repairing or replacing the faulty component or resealing the gasket surface. However,
once a leak is identified it is important to determine and repair the cause as well as the leak itself.
Locating and Identifying the Leak
Inspect the leaking fluid and determine whether it is engine oil, transmission fluid, power steering fluid, brake fluid or
some other fluid. If unsure of the source of the leaking lubricant, a quick check of fluid levels should indicate where the
fluid is coming from, as one or more fluid level should be low.
Visual Inspection
Once the type of leaking fluid has been determined, a visual inspection of the affected system should be performed.
W hen performing the visual inspection:
1 Bring the vehicle to the normal operating temperature.
2 Park the vehicle over a large sheet of paper or other clean surface.
3 Leave the vehicle idling for 2-3 minutes, then check for dripping fluid.
4 If required, identify the type of fluid leaking and the approximate location of the leak.
5 Visually inspect the suspected area. A small mirror may assist viewing areas that are difficult to see normally.
6 Check for leaks at all sealing surfaces and fittings.
7 Check for any cracked or damaged components.
8 If the leak cannot be located, completely clean the entire engine and surrounding components, drive the vehicle at normal operating temperature for several kilometres and then repeat Steps 3 to 8.
9 If the leak still cannot be located, proceed with either the Powder Method or Black Light and Dye Method as outlined below.
Powder Method
1 Completely clean the entire engine and surrounding components.
2 Apply an aerosol type powder (e.g. foot powder) to the suspected area.
3 Operate the vehicle at normal operating temperature and at varying speeds for several kilometres.
4 Identify the source of the leak from the discoloration of the powder around the suspect components.
5 If required, use a small mirror to assist in viewing areas that are difficult to see normally.
6 Refer to Possible Causes for Engine Oil Leaks in this Section, and repair or replace components as required.
Black Light and Dye Method
A black light and die kit Tool No. J28428-E or a commercially available equivalent is available to technicians to aid in
engine oil leak diagnosis. W hen using a black light and die kit for the first time, it is recommended the technician read the
manufacturers instructions prior to using the kit.
1 Add the specified amount of dye, as per manufacturers instructions, into the engine or suspected source of the oil leak.
2 Operate the vehicle at normal operating temperature and at varying speeds for several kilometres.
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Page 2825 of 6020

Engine Mechanical – V6 Page 6A1–48
Page 6A1–48
2.18 Engine Oil Leak Diagnosis
Introduction
It is important to correctly identify the source of an engine oil leak. For example, a power steering fluid leak or spillage
during servicing can travel across the va lley area of the engine and run-out the weep hole, which is located at the back of
the cylinder block. Failure to correctly identify the source of an engine oil leak can lead to unnecessary replacement of
engine components.
Most fluid leaks can be repaired by repairi ng or replacing the faulty component or resealing the gasket surface. However,
once a leak is identified it is im portant to determine and repair the c ause as well as the leak itself.
Locating and Identifying the Leak
Inspect the leaking fluid and determine whet her it is engine oil, transmission fluid, power steering fluid, brake fluid or
some other fluid. If unsure of the source of the leaking lubricant, a quick check of fluid levels should indicate where the
fluid is coming from, as one or more fluid level should be low.
Visual Inspection
Once the type of leaking fluid has been determined, a visual inspection of the affected system should be performed.
When performing the visual inspection:
1 Bring the vehicle to the normal operating temperature.
2 Park the vehicle over a large s heet of paper or other clean surface.
3 Leave the vehicle idling for 2-3 minut es, then check for dripping fluid.
4 If required, identify the type of fluid leak ing and the approximate location of the leak.
5 Visually inspect the suspected area. A small mirror may assist viewing areas that are difficult to see normally.
6 Check for leaks at all sealing surfaces and fittings.
7 Check for any cracked or damaged components.
8 If the leak cannot be located, completely clean the entire engine and surrounding components, drive the vehicle at
normal operating temperature for several k ilometres and then repeat Steps 3 to 8.
9 If the leak still cannot be located, proceed with either the Powder Method or Black Light and Dye Method as
outlined below.
Powder Method
1 Completely clean the entir e engine and surrounding components.
2 Apply an aerosol type powder (e.g. f oot powder) to the suspected area.
3 Operate the vehicle at normal operating temperature and at varying speeds for several kilometres.
4 Identify the source of the leak from the discoloration of the powder around the suspect components.
5 If required, use a small mirror to assist in vi ewing areas that are difficult to see normally.
6 Refer to Possible Causes for Engine Oil Leaks in this Section, and repair or replace components as required.
Black Light and Dye Method
A black light and die kit Tool No. J28428-E or a commercially av ailable equivalent is available to technicians to aid in
engine oil leak diagnosis. When using a black light and die kit fo r the first time, it is recommended the technician read the
manufacturers instructions prior to using the kit.
1 Add the specified amount of dye, as per manufacturers instructions, into the engine or suspected source of the oil
leak.
2 Operate the vehicle at normal operating temperature and at varying speeds for several kilometres.
3 With the vehicle parked on a flat leve l surface, aim the black light at the suspected component/s. The dyed fluid will
appear as a yellow path leading to the oil leak source
4 Refer to Possible Causes for Engine Oil Leaks in this Section, and repair or replace components as required.
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Page 3800 of 6020

Automatic Transmission – 4L60E – Electrical Diagnosis Page 7C2–14
3 Tech 2 Information
3.1 Tech 2 Diagnostics
Tech 2, with the appropriate software, cables and adapters,
when connected to the serial data link connector (DLC) can
read seat and exterior rear-view mirror serial data. The DLC
is attached to the instrument panel trim retainer beneath the
steering wheel.
1 DLC
2 DLC Adapter
3 DLC Cable
4 Tech 2
For additional general information on connecting and
operating Tech 2, refer to 0C Tech 2.
Figure 1A7 – 3
Test Modes
Tech 2 has six test modes for diagnosing the transmission. To get to these various test modes, on Tech 2 select:
Diagnostics / Model Year / Model / Vehicle Type / Transmission / Automatic Transmission
and follow Tech 2’s prompts. This will then display the following menu operations.
Diagnostic Trouble Codes
If Diagnostic Trouble Codes is selected, a selection list is displayed which contains:
• Read DTC Information – Once selected, both current and history diagnostic trouble codes (DTCs) stored in the
transmission control module will be displayed.
• Clear Engine & Transmission DTC(s) – Once selected, DTCs stored in the transmission control module (TCM)
and engine control module (ECM) memory may be cleared.
• Freeze Frame / Failure Records – Shows Freeze Frame / Failure Records information. Freeze Frame / Failure
Records are types of snapshots stored in the memory of the TCM and contain data parameters from the TCM at
the time the DTC set.
NOTE
For a complete list of TCM DTCs, refer to
4.8 Diagnostic Trouble Code List. For
further information on Tech 2 and it functions,
refer to 0C Tech 2.
Data Display
If Data Display is selected, a selection list is displayed which contains:
• Transmission Data – Once is selected, a list of transmission components and the TCM inputs are displayed along
with their status.
• TCC Data – Once selected, displays specific parameter information about the torque converter clutch controlling
devices and their circuits.
• 1-2 Shift Data – Once selected, displays specific parameter information about the 1-2 shift solenoid valve (shift
solenoid A) and its circuits.
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Page 4941 of 6020

ELECTRICAL-BODY AND CHASSIS 8A-3
PAGE
Power Window ............................................................................................................8A- 41 5
Audio, Clock and Cigarette Lighter ...........................................................................8A- 440
Power Door Mirror ......................................................................................................8A- 464
Rear Defogger .............................................................................................................8A- 480
Supplemental Restraint System (SRS)-Air Bag ........................................................8A- 491
Transfer Case Control Module ...................................................................................8A- 498
Anti-Lock Brake System .............................................................................................8A- 514
Immobilizer ..................................................................................................................8 A- 519
Keyless Entry ..............................................................................................................8A- 529
Data Link Connector ...................................................................................................8A- 553
Anti Theft ..................................................................................................................... .8A- 561
Key Inter Lock .............................................................................................................8A- 588
DRM ........................................................................................................................... ...8A- 592
Trailer Hitch ................................................................................................................. 8A- 595
Power Train Interface Module (PIM) ..........................................................................8A- 600
Connector List ................................................................................................................ .8A- 606
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Page 4962 of 6020

8A-24 ELECTRICAL-BODY AND CHASSIS
MAIN DATA AND SPECIFICATIONS
BULB SPECIFICATIONS
This illustration based on LHD
RTW 78AMF000801
Light Name Bulb No. Rated Power
V-W Number
of Bulbs Lens
Color Remarks
H4 12-60/55 2 W hite A type, Halogen
HB3 12-65 2 W hite
H7 12-55 2 W hite A type, Halogen
projector type
HB3 12-60 2 W hite High Bean
Headlight
HB4 12-51 2 W hite B type
Low Bean
High mounted stoplight W 5W 12-5 4 RED
Fog light H3 12-55 2 W hite
Front turn signal light PY21W 12-21 2 W hite Bulb Lens color
Amber
Clearance light W 5W 12-5 2 W hite
Door mirror-turn signal light
(out side mirror type) - -
2 W hite LED (Illuminated
color Amber)
Side turn signal light W 5W 12-5 2 W hite with
amber
inner lens
Rear turn signal light
PY21W 12-21 2 W hite Bulb Lens color
Amber
Rear fog light P21W 12-21 1 Red
Tail and stoplight P21/5W 12-21/5 2 Red
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Page 5174 of 6020

8A-236 ELECTRICAL-BODY AND CHASSIS
HIGH MOUNTED STOPLIGHT
Remove the bulb socket
1. Remove the high mounted stoplight ASM. • Remove the screws.
• Disconnect the connector.
2. Remove the bulb socket.
• Turn the bulb
1 counterclockwise to remove it.
Installation
Follow the removal procedure in the reverse order to install the
rear combination light.
Pay close attention to the important points mentioned in the
following paragraphs.
Bulb
Be absolutely sure that each bulb is correctly installed.
This will prevent a poor contact and an open circuit.
DOOR MIRROR - TURN SIGNAL LIGHT
Removal
1. Pull the lower outside corner of the mirror toward you.
RUW 580SH000701
2. Press the blade of an ordinary screwdriver (2) into the
mirror outside groove near the mirror base hole (1).
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Page 5175 of 6020

ELECTRICAL-BODY AND CHASSIS 8A-237
RUW 580SH000801
3. Turn the blade of the screwdriver 90 degrees to separate
the parts (1).
RUW 580SH000901
4. Use an ordinary screwdriver inserted into the inner groove
(1) of the outside mirror case to pry off the outside panel (it
pasts up on butyl tape). Do this at 5 points around the
groove.
RUW 580SH001001
5. Insert an ordinary screwdriver into the inner groove (1) of
the door mirror - turn signal light. Pry the light free.
6. Disconnect the connector (2).
Installation
Follow the removal procedure in the reverse order to install the
door mirror - turn signal light.
Pay close attention to the important points mentioned in the
following paragraphs.
SIDE TURN LIGHT
Removal
1. Remove the lens 1.
• Pull the light/bulb toward you while pushing the light
housing in the rear direction of the vehicle to release its
lock.
• Remove the socket by turning it counterclockwise.
2. Pull the bulb
2 to remove it.
Installation
Follow the removal procedure in the reverse order to install the
side turn light.
Pay close attention to the important points mentioned in the
following paragraphs.
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Page 5402 of 6020

8A-464 ELECTRICAL-BODY AND CHASSIS
POWER DOOR MIRROR
PARTS LOCATION (RHD)
RTW 78AXF039901 & RTW 78AXF046101
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Page 5410 of 6020

8A-472 ELECTRICAL-BODY AND CHASSIS
TROUBLESHOOTING
QUICK CHART FOR CHECK POINT
Check Point Fuse Door Mirror Door Mirror
Trouble Mode C11
(10A) Control
Switch LH RH
1. Mirrors on the both sides do not operate
2. Mirror on the left (or right) side does not
operate
3. Mirrors on the both sides operate only in
the vertical
(or horizontal) direction
4. Mirror on the left side operates only in
the vertical
(or horizontal) direction
5. Mirror on the right side operates only in
the vertical
(or horizontal) direction
Cable
Harness
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Page 5411 of 6020

ELECTRICAL-BODY AND CHASSIS 8A-473
DOOR MIRROR CONTROL SWITCH
1. Mirrors on the both sides do not operate
Checkpoint Trouble Cause Countermeasure
Reinstall or replace the fuse
No. C11 (10A)
Poor fuse contact or blown
NG
Repair grounding point
C2
contact
Grounding point
C2
Poor grounding point contact
Repair an open circuit or a
poor connection of the
connectors between the fuse
No. C11 (10A) and 4
D19
Voltage between the door
mirror control SW . harness
side connector terminal
4
D19 and the ground
(Should be battery voltage
present)
Open circuit or poor connector
contact
NG
NG
OK
OK
OK
Fuse No. C11 (10A, Fuse box)
Repair open circuit or
connector contact
Open circuit or poor connector
contact
NG Continuity between the door
mirror control SW harness
side connector terminal
8
D19 and C2
Replace the door mirror
control SW .
Door mirror control SW .
function
SW . malfunction
NG
OK
Repair open circuit or
connector contact
Continuity between 7
D19
and 12
H36 (or 12 H37 )
Open circuit or poor connector
contact
NG
OK
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