light ISUZU TF SERIES 2004 Owner's Guide
[x] Cancel search | Manufacturer: ISUZU, Model Year: 2004, Model line: TF SERIES, Model: ISUZU TF SERIES 2004Pages: 4264, PDF Size: 72.63 MB
Page 686 of 4264
8A-28 ELECTRICAL-BODY AND CHASSIS
RELAY LOCATION (RELAY AND FUSE BOX)
RELAY & FUSE BOX
RHD
NO. RELAY (C24SE) RELAY (6VE1) RELAY
(4JA1-TC/4JH1-TC)RELAY (4JA1-L)
X-1 RELAY; TAIL LIGHT
X-2 RELAY; FUEL PUMP
RELAY; FRT FOG RELAY; FRT FOG
LIGHT
X-3 RELAY; HORN
X-4 RELAY; DIMMER
X-5 RELAY; FOG LIGHT
RELAY; GLOW RELAY; GLOW
X-6 RELAY; STARTER
RELAY; COND, FAN RELAY; CSD
X-7 RELAY; COND, FAN
RELAY; RR FOG
X-8
RELAY; STARTER RELAY; STARTER
X-9 RELAY; HAZARD-RH
X-10 RELAY; HAZARD-LH
X-11 RELAY; HEATER
X-12 RELAY; HEAD
LIGHT
X-13
RELAY; ECM MAIN
RELAY; COND, FAN
X-14 RELAY; A/C COMP
X-15 RELAY; THERMO
Page 687 of 4264
ELECTRICAL-BODY AND CHASSIS 8A-29
RELAY LOCATION (RELAY AND FUSE BOX)
RELAY & FUSE BOX
LHD
NO. RELAY (C24SE) RELAY (6VE1) RELAY
(4JA1-TC 4JH1-TC)RELAY (4JA1-L)
X-1 RELAY; TAIL LIGHT
X-2 RELAY; FUEL PUMP
RELAY; FRT FOG RELAY; FRT FOG
LIGHT
X-3 RELAY; HORN
X-4 RELAY; DIMMER
X-5 RELAY; FRT FOG
LIGHT RELAY; FOG LIGHT RELAY; GLOW RELAY; GLOW
X-6 RELAY; STARTER
RELAY; COND, FAN RELAY; CSD
X-7 RELAY; COND, FAN
RELAY; RR FOG
X-8
RELAY; STARTER
X-9
SHORT
CONNECTOR
(with cooler)
X-10
X-11 RELAY; HEATER
X-12 RELAY; HEAD
LIGHT
X-13
RELAY; ECM MAIN
RELAY; COND, FAN
X-14 RELAY; A/C COMP
X-15 RELAY; THERMO
Page 689 of 4264
ELECTRICAL-BODY AND CHASSIS 8A-31
FUSE AND SLOW BLOW FUSE LOCATION (RELAY AND FUSE BOX)
RELAY & FUSE BOX
RHD
FUSE
ENGINE MODEL
FUSE NO. C24SE 6VE1 4JA1-TC / 4JH1-TC4JA1-L
EB-1 15A ECM 20A ECM 10A ECM
EB-2
10A ECM (B) 10A RR FOG
EB-3 15A FRT FOG
10A TCM 15A FRT FOG
EB-4 10A ACG (S) 15A FRT FOG 10A ACG (S)
EB-5 10A ILLUMI 10A ILLUMI & TAIL-RH10A ILLUMI
EB-6 10A TAIL 10A TAIL-LH 10A TAIL
EB-7 10A H/LIGHT-RH 10A H/LIGHT RH-LOW10A H/LIGHT RH
EB-8 10A H/LIGHT-LH 10A H/LIGHT LH-LOW10A H/LIGHT LH
EB-9 20A FUEL PUMP 10A O2 SENSOR 10A TRA ILER
EB-10 10A O2 SENSOR 20A FUEL PUMP 10A AC G (S)
EB-11 10A H/LIGHT RH-HIGH
EB-12 10A H/LIGHT LH-HIGH
EB-13 10A A/C
EB-14 10A 4WD
10A 4WD
EB-15 10A HORN
EB-16 15A HAZARD 10A HAZARD
SLOW BLOW FUSE
ENGINE MODEL
FUSE NO. C24SE 6VE1 4JA1-TC / 4JH1-TC4JA1-L
SBF-1 100A MAIN
80A MAIN
SBF-2
20A COND, FAN
SBF-3
60A GLOW 20A COND, FAN
SBF-4 20A COND, FAN
30A ECM 50A GLOW
SBF-5 40A IG 1
SBF-6
40A ABS-1
SBF-7
30A ABS-2
SBF-8 30A BLOWER
SBF-9 50A IG 2
Page 690 of 4264
8A-32 ELECTRICAL-BODY AND CHASSIS
FUSE AND SLOW BLOW FUSE LOCATION (RELAY AND FUSE BOX)
RELAY & FUSE BOX
LHD
FUSE Saudi Arabia
ENGINE MODEL
FUSE NO. C24SE 6VE1 4JA1-TC / 4JH1-TC4JA1-L
EB-1 15A ECM 20A ECM 10A ECM
EB-2
10A ECM (B) 10A RR FOG
EB-3 15A FRT FOG
10A TCM 15A FRT FOG
EB-4 10A ACG (S) 15A FRT FOG 10A ACG (S)
EB-5 10A ILLUMI & TAIL-RH 10A ILLUMI & TAIL-RH
EB-6 10A TAIL-LH 10A TAIL-LH
EB-7 10A H/LIGHT-RH 10A H/LIGHT-RH
10A H/LIGHT-RH-LOW
10A H/LIGHT RH-LOW
10A H/LIGHT-RH-LOW
EB-8 10A H/LIGHT-LH 10A H/LIGHT-LH
10A H/LIGHT-LH-LOW
10A H/LIGHT LH-LOW
10A H/LIGHT-LH-LOW
EB-9 20A FUEL PUMP 10A O2 SENSOR 10A TRA ILER
EB-10 10A O2 SENSOR 20A FUEL PUMP 10A AC G (S)
EB-11 10A H/LIGHT-RH-HIGH 10A H/LIGHT RH-HIGH
EB-12 10A H/LIGHT-LH-HIGH 10A H/LIGHT LH-HIGH
EB-13 10A A/C
EB-14 10A 4WD
10A 4WD
EB-15 10A HORN
EB-16 15A HAZARD 10A HAZARD
SLOW BLOW FUSE
ENGINE MODEL
FUSE NO. C24SE 6VE1 4JA1-TC / 4JH1-TC4JA1-L
SBF-1 100A MAIN
80A MAIN
SBF-2
20A COND, FAN
SBF-3
60A GLOW 20A COND, FAN
SBF-4 20A COND, FAN
30A ECM 50A GLOW
SBF-5 40A IG 1
SBF-6
40A ABS-1
SBF-7
30A ABS-2
SBF-8 30A BLOWER
SBF-9 50A IG 2
Page 772 of 4264
8A-114 ELECTRICAL-BODY AND CHASSIS
LIGHTING
PARTS LOCATION (RHD)
RTW48AXF014501 & RTW48AXF014601
Page 778 of 4264
8A-120 ELECTRICAL-BODY AND CHASSIS
TROUBLE SHOOTING
HEADLIGHT
1. Both the headlights (high and low beam) do not light
Checkpoint Trouble Cause Countermeasure
Repair the wiring
Poor ground point contact
NG
Repair open circuit or
connector contact
Repair open circuit
Repair or replace the
combination switch
Voltage between 1
B-60 -
ground
Open circuit between lighting
relay and lighting switch
Open circuit between battery
positive terminal and lighting
relay
Combination switch continuity
Poor switch contact or sw
faulty
Voltage between
5
X-12 - ground and
2
X-12 - ground
Reinstall or replace the
lighting relay
Lighting relay
Poor relay contact or relay
faulty
NG NG NG NG OK
OK
OK OK
Ground point contact (C-36)
Repair open circuit
Wiring continuity between
B-60 - C-36
Open circuit
NG OK
Page 779 of 4264
ELECTRICAL-BODY AND CHASSIS 8A-121
2. High or low beam does not light on both headlights
Checkpoint Trouble Cause Countermeasure
Repair or replace the
combination switch
Dimmerpassing switch
continuity
Poor switch contact or switch
faulty
NG
Repair open circuit or
connector contact
Voltage between
4
X-4 - ground and
4
B-60 - ground
Open circuit between
headlight and dimmerpassing
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
Wiring continuity between
connector 3
C-19 - fuse No.
EB-7 or 3
C-26 fuse No.
EB-8
Open circuit and/or poor
connector contact
NG OK
Reinstall or replace fuse No.
EB-7 or No. EB-8
Fuse No. EB-7 (10A) or
No. EB-8 (10A) (Relay and
fuse box)
(No. EB-7 RH, No. EB-8: 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 contactWiring continuity between
headlight and dimmerpassing
switchOpen circuit between
headlight and dimmerpassing
switch NG OK
Page 780 of 4264
8A-122 ELECTRICAL-BODY AND CHASSIS
5. Headlight does not go out
Checkpoint Trouble Cause Countermeasure
Replace the lighting relay
Lighting relay continuity
between connector 1
X-12
- 2
X-12 (Should be no
continuity)
Relay point fused
NG
Replay the combination switch
Lighting switch continuity
between connector 3
B-60
-1
B-60 when switch is
OFF(Should be no continuity)
point fused or faulty
NG
OK OK
Repair or replace the
combination switch
Dimmerpassing switch con-
tinuity between connector
3
B-60 - 1 B-60 when switch
is not operating
(Should be no continuity)
Switch point fused or faulty
NG
Repair short circuit
between 4
X-12 - 3 B-60
and 4
X-1 - 2 B-60
Check if headlight goes out
when connector
C-30 is
disconnected
Short circuit
NG OK
6. Insufficient headlight brightness
Replace the headlight bulb
Headlight bulb
Bulb filament faulty
NG
Repair the wiring
Dimmerpassing switch
Wire continuity between con-
nector 1
B-60 - C-36
Poor ground point contact
NG OK
Clean the light lens
Headlight lens
Lens dirty
NG
OK
Page 781 of 4264
ELECTRICAL-BODY AND CHASSIS 8A-123
7. Passing light does not function when dimmer switch is operated
Checkpoint Trouble Cause Countermeasure
Repair or replace the dimmer
switch
Dimmer switch
Poor switch point contact
NG
Repair open circuit between
4
X-12 - 3 B-60
Voltage between
3
B-60 - ground (Should
be battery voltage present)
Open circuit
NG OK
8. Headlight beam does not change when dimmer switch is operated
Repair or replace the dimmer
switchDimmer switchLoose beam lever or foreign
material in switch NG
Page 782 of 4264
8A-124 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
B-60 - 1 B-60
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. EB-6
Fuse No. EB-6 (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
F-5 - 4 F-5 (RH)
or 3
F-6 - 4 F-6 (LH)
Open circuit or poor connector
contact
NG OK