light ISUZU KB P190 2007 Workshop Repair Manual

ELECTRICAL-BODY AND CHASSIS 8A-13
PARTS FOR ELECTRICAL CIRCUIT


WIRING
Wire Color
All wires have color-coded insulation.
W ires belonging to system's main harness will have a single
color.
W ires belonging to a system's sub-circuits will have a colored
stripe.
Striped wires use the following code to show wire size and
colors.
Example: 0.5 G
/ R
Red (Stripe color)
Green (Base color)
W ire size (0.5mm
2)
Abbreviations are used to indicate wire color within a circuit
diagram.
Refer to the following table.


Wire Color-Coding
Color-Coding Meaning Color-Coding Meaning
B Black BR Brown
W W hite LG Light green
R Red GR Gray
G Green P Pink
Y Yellow SB Sky blue
L Blue V Violet
O Orange


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8A-14 ELECTRICAL-BODY AND CHASSIS
Distinction of Circuit by Wire Base Color
Base color Circuits Base color Circuits
B Starter circuit and grounding circuit Y Instrument circuit
W Charging circuit L, O, BR,
R Lighting circuit LG, GR, Other circuits
G Signal circuit P, LB, V




Wire Size
W ire size is specified with the metric gauge system.
The metric gauge system gives the wire size in cross sectional
area measured in square millimeters.


Wire Size Specifications
Nominal size Cross sectional area
(mm2) Outside diameter
(mm) Allowable current
(A)
0.3 0.372 1.8 9
0.5 0.563 2.0 12
0.85 0.885 2.2 16
1.25 1.287 2.5 21
2 2.091 2.9 28
3 3.296 3.6 37.5
5 5.227 4.4 53
8 7.952 5.5 67
15 13.36 7.0 75
20 20.61 8.2 97


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8A-20 ELECTRICAL-BODY AND CHASSIS
Caution:
Never push or tow the vehicle in an attempt to start it.
Extensive damage to the emission system and other
vehicle parts will result.
(Only catalytic converter vehicle)
Treat both the discharged battery and the booster battery
with great care when using jumper cables.
Carefully follow the procedure outlined below.
Always be aware of the dangers of sparking.
Failure to follow the following procedure can result in:
a. Serious personal injury, specially to your eyes.
b. Extensive property damage from a battery explosion, battery acid discharge, or electrical file.
c. Extensive damage to the electronic components o
f
both vehicles.
Do not use a 24 volt booster battery.
Serious damage to the vehicle's electrical system and
electronic components will result.

Jump Starting Procedure
1. Set the parking brake on both vehicles.
2. If one or both vehicles is equipped with a manual transmission, place the gear shift in the "NEUTRAL"
position.
3. Turn off the ignition on both vehicles.
4. Turn off all vehicle lights and accessories.
5 Be sure that the two vehicles are not touching.

Attach the end of one jumper cable to the booster battery
positive terminal.
6
Attach the other end of the same cable to the discharged
battery positive terminal.
7. Once again, check that the booster battery has a 12 volt rating.
8.
Attach one end of the remaining booster cable to the
booster battery negative terminal.
9.
Attach the other end of the booster cable to a solid ground
(such as the air conditioner compressor mounting bracket
or the alternator mounting bracket) in the engine room o
f
the vehicle with the discharged battery.
10.Be sure that the ground connection is at least 500 mm (20 in) from the discharged battery.

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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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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

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8A-28 ELECTRICAL-BODY AND CHASSIS

RELAY LOCATION
RELAY & FUSE BOX (ENGINE ROOM)
RHD






NO. RELEY (C24SE) RELAY (HFV6) RELAY (4JA1T(L)) RELAY
(4JJ1-TC/4JK1-TC)
X1 RELAY; TAIL LIGHT RELAY; FOG LIGHT ← ←
X2 RELAY; FUEL PUMP RELAY; TAIL LIGHT
← ←
X3 RELAY; HORN
← ← ←
X4 RELAY; DIMMER
← ← ←
X5
  RELAY; GLOW
←
X6 RELAY; STARTER RELAY; H/LIGHT
← ←
X7 RELAY; H/LIGHT
(Except AUSTRALIA)
RELAY; COND FAN
(AUSTRALIA) RELAY; H/ LIGHT RELAY; CSD RELAY; STARTER CUT
X8
  RELAY; STARTER
←
X9 RELAY; FRT FOG
LAMP 
 RELAY; COND FAN
X10 RELAY; COND FAN
  RELAY;
TRANSMISSION
X11 RELAY; HEATER ← ← ←
X12 RELAY; STARTER CUT
(AUSTRALIA) RELAY; ECM MAIN
 RELAY; ECM MAIN
X13 RELAY; STARTER CUT
(Except AUSTRALIA)
RELAY; H/LIGHT
(AUSTRALIA) RELAY; F/PUMP RELAY; COND FAN RELAY; F/PUMP
X14 RELAY; A/C COMP
← RELAY; STARTER CUT RELAY; A/C COMP
X15 RELAY; THERMO RELAY; STARTER RELAY; THERMO
←




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ELECTRICAL-BODY AND CHASSIS 8A-29

RELAY LOCATION
RELAY & FUSE BOX (ENGINE ROOM)
LHD






NO. RELEY (C24SE) RELAY (HFV6) RELAY (4JH1-TC) RELAY (4JA1T(L)) RELAY
(4JJ1-TC/4JK1-TC)
X1 RELAY; TAIL LIGHT RELAY; FOG
LIGHT ←
← ←
X2 RELAY; FUEL
LIGHT RELAY; TAIL
LIGHT ←
← ←
X3 RELAY; HORN
← ← ← ←
X4 RELAY; DIMMER
← ← ← ←
X5
  RELAY; GLOW
← ←
X6 RELAY; STARTER RELAY; H/LIGHT
← ← ←
X7 RELAY; H/LIGHT
 RELAY; STARTER
CUT RELAY; CSD RELAY; STARTER
CUT
X8   RELAY; STARTER
← ←
X9 RELAY; FRT FOG
LIGHT 
RELAY; COND
FAN 
←
X10 RELAY; COND
FAN 
  RELAY;
TRANSMISSION
X11 RELAY; HEATER ← ← ← ←
X12
 RELAY; ECM MAIN RELAY; ECM MAIN
 ←
X13 RELAY; STARTER
CUT RELAY; F/PUMP
 RELAY; COND
FAN RELAY; F/PUMP
X14 RELAY; A/C COMP
← ← RELAY; STARTER
CUT RELAY; A/C COMP
X15 RELAY; THERMO RELAY; STARTER RELAY; THERMO RELAY; THERMO
←



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8A-32 ELECTRICAL-BODY AND CHASSIS
FUSE AND SLOW BLOW FUSE LOCATION
RELAY & FUSE BOX (ENGINE ROOM)
LHD

FUSE ∗2 W ITH HEADLIGHTS LEVELING
ENGINE MODEL
FUSE NO. C24SE HFV6 4JH1-TC 4JA1T (L) 4JJ1-TC / 4JK1-TC
EB1 15A ECM 15A ECM 10A ACG (S)
← ←
EB2
 15A 02 SENS PRE
  10A ECM (B)
EB3
 10A ECM (B)
  10A F/PUMP
EB4 10A ACG (S) 10A TCM PIM B 10A ECM
 10A ENGINE
EB5
10A H/L (RH) HI ∗2 10A H/L (RH) HI
10A H/L (RH) HI ∗2 10A H/L (RH) HI
←
EB6
10A H/L (LH) HI ∗2 10A H/L (LH) HI
10A H/L (LH) HI ∗2 10A H/L (LH) HI
←
EB7 10A H/L (RH) 10A H/L (RH) LOW 10A H/L (RH) 10A H/L (RH)
LOW ←

10A H/L (RH) LOW
∗ 2
10A H/L (RH) LOW
∗ 2
EB8 10A H/L (LH) 10A H/L (LH) LOW 10A H/L (LH)
10A H/L (LH)
LOW ←

10A H/L (LH) LOW
∗ 2
10A H/L (LH) LOW ∗2
EB9 20A F/PUMP
   20A TRAILER
EB10 10A SENSOR
 20A COND FAN
 20A COND FAN
EB11 10A TAIL (RH)
← ← ← ←
EB12 10A ILLUMI & TAIL
LH ←
← ← ←
EB13 10A A/C
← ← ← ←
EB14 10A 4W D
← ← ← ←
EB15 10A HORN
← ← ← ←
EB16 10A HAZARD
← ← ← ←
SLOW BLOW FUSE
ENGINE MODEL
FUSE NO. C24SE
HFV6 4JH1-TC 4JA1T (L) 4JJ1-TC / 4JK1-TC
SBF1 100A MAIN ←

80A MAIN ←
120A MAIN
SBF2 

20A FRT FOG 40A ABS1 
40A ABS1
SBF3 

60A RAD. FAN 30A ABS2 20A ABS2
←
SBF4 20A COND, FAN 20A F/PUMP 30A ECM 20A CON FAN 40A ECM
SBF5 40A IG 1
←
← ←
←
SBF6 

30A BLOW ER ←
←
←
SBF7 20A FRT FOG 40A ABS1 20A FRT FOG ←

←
SBF8 30A BLOW ER 20A ABS2 60A GLOW 50A GLOW 60A GLOW
SBF9 50A IG 2
60A IG 2 50A IG 2
← 60A IG 2


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ELECTRICAL-BODY AND CHASSIS 8A-149
LIGHTING
PARTS LOCATION (RHD)







RTW 78AXF036701 & RTW 78AXF042901

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8A-152 ELECTRICAL-BODY AND CHASSIS

CIRCUIT DIAGRAM C24SE (LHD) WITHOUT HEADLIGHTS LEVELING


RTW 680XF006701

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