bulb ISUZU KB P190 2007 Workshop Owner's Manual

Engine Cooling – V6 Engine Page 6B1–21

Calibrating the Tester
The coolant tester calibration is checked at manufacture. If however, the calibration check detailed in Step 1 of this
method shows that the instrument is not reading correctly, then conduct the following recalibration procedure:
1 Remove the sealant covering the adjustment screw on the underneath of the tester.
2 W ith a distilled water sample on the measuring surface, carefully adjust the screw until a zero reading is obtained.
NOTE
DO NOT completely remove the screw.
3 After recalibration, reseal the screw with a small amount of silicone sealant.
Method 2 – Hydrometer
1 The cooling system should be at or close to ambient temperature.
2 Carefully remove the coolant filler cap from the coolant outlet housing and, while holding the rubber
bulb squeezed, insert nozzle of coolant tester
hydrometer, Tool No. AU505 into coolant. Releasing
the rubber bulb will then draw sufficient coolant into
the tester to float hydrometer bulb freely.
3 Hold tester at eye level and read scale on hydrometer bulb at coolant level.
The reading shows the percentage of ethylene glycol antifreeze contained in the engine coolant.
4 The hydrometer reading should show 50% if the coolant concentration is correct.
• If a reading of less than 50% is achieved, the
cooling system requires topping up with either
DEX-COOL® long-life coolant or its equivalent,
known as Extended Life Anti-freeze Coolant
conforming to GM specification 6277M.
• Refer to the Coolant Concentration table
shown for the previous method to determine
how much coolant additive of either type is
required to be added to the cooling system to
bring the coolant to the specified
concentration.

Figure 6B1 – 18
5 Drain sufficient quantity of coolant from cooling system to allow top-up with coolant additive, then add the required amount of the correct additive. Install coolant filler cap to the coolant outlet housing.
6 Start and run the engine until normal operating temperature is reached. This will allow the added coolant to be distributed throughout the engine cooling system.

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

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.

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

7A2-154 TRANSMISSION CONTROL SYSTEM (JR405E)
Check Trans Lamp Operation
The check trans lamp is located in the instrument panel
cluster. The check trans lamp indicates that a transmission
related fault has occurred and vehicle service is
required. The following is a list of the modes of
operation for the check trans lamp:
• The check trans lamp illuminates for approximately 3 seconds when the ignition switch is turned ON,
with the engine OFF. This is a bulb test to the
check trans lamp is able to illuminate.
• The check trans lamp turns OFF after the engine is started if a diagnostic fault is not present.
• The check trans lamp remains blink after the engine is started if the TCM detects a fault. A DTC
is stored any time the TCM blinks the check trans
lamp due to a transmission related fault has
occurred.
Line Pressure Control
Solenoid valve outputs Pressure control (PC) solenoid valve
Switch inputsTransmission range (TR) switch
Sensor inputs
Input shaft speed (ISS) sensor
Output shaft speed (OSS) sensor
Accelerator pedal position signal (via ECM)
Engine speed signal (via ECM)TCM

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

ELECTRICAL-BODY AND CHASSIS 8A-1
SECTION 8A
ELECTRICAL-BODY AND CHASSIS
TABLE OF CONTENTS
PAGE
General Information ........................................................................................................... .........8A- 4
Notes for Working on Electrical Items .......................................................................................8A - 5
Symbols and A bbreviations ..................................................................................................... ..8A- 11
Symbols ....................................................................................................................... ................ 8A- 11
Abbreviations ................................................................................................................. ..............8A- 12
Parts for Electri cal Circuit .................................................................................................. ........8A- 13
Wiring ........................................................................................................................ ...................8A- 13
Fuse .......................................................................................................................... ....................8A- 15
Fusible Link .................................................................................................................. ...............8A- 15
Relay ......................................................................................................................... ....................8A- 16
Diode ......................................................................................................................... ...................8A- 17
Connector ..................................................................................................................... ...............8A- 18
Battery ....................................................................................................................... ...................8A- 19
Reading the Circuit Diagram ................................................................................................... ...8A- 22
Parts Location ................................................................................................................ ..............8A- 22
Circuit Diagram ............................................................................................................... .............8A- 23
Connector List ................................................................................................................ .............8A- 23
Main Data and Specifications .................................................................................................. ...8A- 24
Bulb Specifications ........................................................................................................... ..........8A- 24
Relay and Fuse ................................................................................................................ ............8A- 26
Relay and Fuse Box Location (RHD) .........................................................................................8A- 26
Relay and Fuse Box Location (LHD) ..........................................................................................8A- 27
Relay Location ................................................................................................................ .............8A- 28
Fuse and Slow Blow Fuse Location ...........................................................................................8A- 31
Fuse Location ................................................................................................................. .............8A- 33
Diode Location ................................................................................................................ .............8A- 34
Fuse Block Circuit (C24SE) .................................................................................................... ....8A- 35/36
Fuse Block Circuit (HFV6) ...................................................................................................... .....8A- 37


BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

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

BACK TO CHAPTER INDEX
TO MODEL INDEXISUZU KB P190 2007

ELECTRICAL-BODY AND CHASSIS 8A-25
Light Name Bulb No. Rated Power
V-W Number
of Bulbs Lens
Color Remarks
P16W 12-21 2 W hite Regular cab Backup light
P21W 12-16 2 W hite Extend cab, Crew cab
License plate light W 5W 12-5 2 W hite
A/C-Heater control light - 12-0.7 1 -
Dome light - 12-10 1 W hite
Spotlight/ Map light - 12-5 2 W hite

Light Name Rated Power
V-W Luminous Color Remarks
ILLUMINATION
LIGHT LED W hite
MULTI FUNCTION DISPLAY LCD Light blue
TURN SIGNAL LED Green
HIGH BEAM LED Blue
LOW FUEL LED Amber
A/T OIL TEMP LED Red
BRAKE LED Red
4W D LED Green
SEAT BELT LED Red
CHECK ENGINE LED Amber
OIL LED Red
FUEL FILTER LED Green
ABS LED Amber
SEDIMENTER LED Red
SRS LED Red
CHARGE LED Red
CHECK TRANS LED Red
CHECK 4W D LED Red
POW ER DRIVE LED Amber
3RD START LED Green
4W D-LOW LED Green
DOOR AJAR LED Red
P LED/LCD Green
R LED/LCD Green
N LED/LCD Green
D LED/LCD Green
3 LED/LCD Green
2 LED/LCD Green
A/T shift
indicator
L LED/LCD Green LED: Indicated on
the gauge
panel
LCD: Indicated on the
tachometer
panel
Meter
Illumination
light,
Indicator
light,
W arning
light

BACK TO CHAPTER INDEX TO MODEL INDEXISUZU KB P190 2007

ELECTRICAL-BODY AND CHASSIS 8A-161
2. High or low beam does not light on both headlights

Checkpoint Trouble Cause Countermeasure


Repair or replace the
combination switch

Dimmer â‹…passing switch
continuity

Poor switch contact or switch
faulty

NG

Repair open circuit or
connector contact
Voltage between
4
X4 - ground and
4
B60 - ground

Open circuit between
headlight and dimmer â‹…passing
switch

NG
OK



3. RH (or LH) high and low beam does not light



Replace the headlight bulb

Headlight connector continuity

Blown filament or air leakage

NG

Repair or replace the wire
and/or connector
W iring continuity between
connector 3
C19 - fuse No.
EB7 or 3
C26 fuse No.
EB8

Open circuit and/or poor
connector contact

NG
OK

Reinstall or replace fuse No.
EB7 or No. EB8
Fuse No. EB7 (10A) or
No. EB8 (10A) (Relay and
fuse box)
(No. EB7 RH, No. EB8: LH)
Poor installation or blown fuse

NG
OK



4. High or low beam does not light on one headlight (RH or LH)

Replace the headlight
assemblyHeadlight connector continuityBlown filament
NG
Repair open circuit or
connector contactW iring continuity between
headlight and dimmer â‹…passing
switchOpen circuit between
headlight and dimmer â‹…passing
switch
NG
OK



BACK TO CHAPTER INDEX
TO MODEL INDEXISUZU KB P190 2007

8A-162 ELECTRICAL-BODY AND CHASSIS
5. Headlight does not go out

Checkpoint Trouble Cause Countermeasure


Replace the lighting relay
Lighting relay continuity
between connector 1
X6
- 2
X6 (Should be no
continuity)

Relay point fused

NG

Replay the combination
switch Lighting switch continuity
between connector 3
B60
-1
B60 when switch is
OFF(S hould be no continuity)

point fused or faulty


NG
OK
OK

Repair or replace the
combination switch
Dimmer â‹…passing switch con-
tinuity between connector
3
B60 - 1 B60 when switch
is not operating
(Should be no continuity)

Switch point fused or faulty

NG
Repair short circuit
between 3
X6 - 3 B60
and 5
X2 - 2 B60
Check if headlight goes out
when connector
C2 , C36
is disconnected


Short circuit

NG
OK



6. Insufficient headlight brightness



Replace the headlight bulb

Headlight bulb

Bulb filament faulty

NG

Repair the wiring
Dimmer â‹…passing switch
W ire continuity between con-
nector 1
B60 - C2


Poor ground point contact

NG
OK

Clean the light lens

Headlight lens

Lens dirty

NG
OK



BACK TO CHAPTER INDEX
TO MODEL INDEXISUZU KB P190 2007

8A-164 ELECTRICAL-BODY AND CHASSIS
TAIL LIGHT, LICENSE PLATE LIGHT, CLEARANCE LIGHT

1. All lights do not light

Checkpoint Trouble Cause Countermeasure



Repair or replace the
combination switch
Lighting switch continuity
between connector
2
B60 - 1 B60


Poor switch point or connector
contact

NG

Reinstall or replace the tail
relay

Tail relay


Poor relay contact or relay
faulty

NG
OK

Reinstall or replace the fuse
No. EB12 (LH), EB11 (RH)
Fuse No. EB12 (LH) or EB11
(RH) (10A, Relay and fuse
box)
Poor fuse contact or blown

NG
OK



2. Tail light does not light


Replace the bulb or repair
connector contact

Tail light bulb continuity

Bulb burned out or poor
connector contact

NG

Repair open circuit or
connector contact
Continuity between connector
3
F5 - 4 F5 (RH)
or 3
F6 - 4 F6 (LH)


Open circuit or poor connector
contact

NG
OK



BACK TO CHAPTER INDEX
TO MODEL INDEXISUZU KB P190 2007

ELECTRICAL-BODY AND CHASSIS 8A-165
3. License plate light does not light

Checkpoint Trouble Cause Countermeasure



Repair open circuit or
connector contact

Continuity between
connector 1
T4 - 2 T4 or 1

T3 - 2 T3

Open circuit or poor connector
contact

NG

Replace the bulb or repair
connector contact

License plate light bulb
continuity

Bulb burned out or poor
connector contact

NG
OK



4. Clearance light does not light

Replace the bulb or repair
connector contactClearance light bulb continuityBulb burned out or poor
connector contact
NG





BACK TO CHAPTER INDEX TO MODEL INDEXISUZU KB P190 2007