Page 2137 of 3115

2004 LAND CRUISER (EWD548U)
130Headlight
Daytime Running Light Operation
When the engine is started, a signal from the generator is input into TERMINAL (A) 14 of the body ECU. At this time, if the
parking brake lever is pulled up (Parking brake SW ON), the body ECU is not activated, and the daytime running light
system does not operate.
When the parking brake lever is released (Parking brake SW OFF), a signal is input into TERMINAL (B) 2 of the body ECU.
This activates the body ECU and the headlight turns on.
C16 Combination SW
13-16 : Closed with light control SW at HEAD position
8-16 : Closed with dimmer SW at FLASH position
7-16 : Closed with dimmer SW at HIGH or FLASH position
: Parts Location
CodeSee PageCodeSee PageCodeSee Page
B7A70D2A68H469
B8B70D3B68J371
B9C70G168J971
C12A70H169J1371
C14C70H269P873
C1670H369
:Junction Block and Wire Harness Connector
CodeSee PageJunction Block and Wire Harness (Connector Location)
1A24Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
1B24Engine Room No.2 Wire and Engine Room J/B (Engine Compartment Left)
2B28Engine Room No.2 Wire and Cowl Side J/B LH (Left Kick Panel)
2E28Dash Wire and Cowl Side J/B LH (Left Kick Panel)2G28Dash Wire and Cowl Side J/B LH (Left Kick Panel)
2K28Floor No.1 Wire and Cowl Side J/B LH (Left Kick Panel)
2Q30Instrument Panel Integration Wire and Cowl Side J/B LH (Left Kick Panel)
3E40Dash Wire and Cowl Side J/B RH (Right Kick Panel)
3Q42Instrument Panel Integration Wire and Cowl Side J/B RH (Right Kick Panel)
:Connector Joining Wire Harness and Wire Harness
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
EE176Engine Room Main Wire and Alternator Wire (Near the Battery)
IG178Engine Room No.2 Wire and Dash Wire (Behind the Combination Meter)
II380Dash Wire and Column Wire (Near the Ignition SW)II580Dash Wire and Column Wire (Near the Ignition SW)
IU382Instrument Panel Integration Wire and Dash Wire (Behind the Glove Box)IU482Instrument Panel Integration Wire and Dash Wire (Behind the Glove Box)
:Ground Points
CodeSee PageGround Points Location
EA76Front Right Side of Fender Apron
IF78Set Bolt of Cowl Side J/B LHIG78Set Bolt of Cowl Side J/B LH
II78Set Bolt of Cowl Side J/B RH
:Splice Points
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
E176Engine Room Main WireE276Engine Room Main Wire
System Outline
Service Hints
Page 2138 of 3115
2004 LAND CRUISER (EWD548U)
131 Memo
Page 2139 of 3115
2004 LAND CRUISER (EWD548U)
132Front Fog Light
15A
FR FOG From Power Source System (
See Page 94)
1A 62 1A 64
EA
R- B
R- B W- B
1 2F 2 W- B1 2F 1 W- B
E15 10A
HEAD
LH- LWR
61 1A1A 19
II3 3
A A
II 3E 35
J 3
R- L
W- B
W- B
1B 59 16 2A 53 2Q
R- L
FR FOG
Relay
G- Y
SB SB G- Y
Front Fog Light LH
Front Fog Light RH Junction
Connector
C C
Junction
Connector J 6
Low
High
Flash
OFF
ON
Dimmer SW Fo g
Light
SW
11
17 10 16Combination SW C16
W- B
IH2 3
Page 2140 of 3115

2004 LAND CRUISER (EWD548U)
133
C16 Combination SW
11-Ground : Continuity with light control SW at HEAD position, dimmer SW at LOW position and fog light SW at ON position
: Parts Location
CodeSee PageCodeSee PageCodeSee Page
C1670F268J671
F168J371
:Junction Block and Wire Harness Connector
CodeSee PageJunction Block and Wire Harness (Connector Location)
1A24Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
1B24Engine Room No.2 Wire and Engine Room J/B (Engine Compartment Left)
2A28Engine Room No.2 Wire and Cowl Side J/B LH (Left Kick Panel)
2Q30Instrument Panel Integration Wire and Cowl Side J/B LH (Left Kick Panel)
3E40Dash Wire and Cowl Side J/B RH (Right Kick Panel)
:Connector Joining Wire Harness and Wire Harness
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
IH280Instrument Panel Integration Wire and Column Wire (Near the Ignition SW)
II380Dash Wire and Column Wire (Near the Ignition SW)
:Ground Points
CodeSee PageGround Points Location
EA76Front Right Side of Fender Apron
II78Set Bolt of Cowl Side J/B RH
:Splice Points
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
E1576Engine Room Main Wire
Service Hints
Page 2141 of 3115
2004 LAND CRUISER (EWD548U)
134Turn Signal and Hazard Warning Light
EE1B 39 1A431A 372 31A 471B 372A 1352E
BM 3 42K 40 39 2Q
B11
Tu rn
15A
HAZ- TRNFrom Power Source System (
See Page 94)
1B 65
2B15
2E2B- W
G- W
G- B
SB
G- Y
W- B
W- B W- B
W- B W- BG- B
SB
G- W
G- B G- B G- B
G- B
G- B
G- Y
G- B
F 3
R10
W- B
Front Turn Signal Light LH
Rear Combination
Light LH
BD2 9BL51
93
Towing Converter
Relay T15 3E10A
ECU- IG2
32
B- W
Page 2142 of 3115
2004 LAND CRUISER (EWD548U)
135
Tu rn LH
Turn RH
A 4A6
D 1
IX1 8
EC BK3 43K 6 33Q
B25
Tu rn
EA 2 33A 12 31 3E
LH
RH
Turn SW
II3 2II31
A 24
C 12
EA2 4II33
IF 2D 22E183P 13N 7 3D 253E 36
SB3 426
5 7 8
G- W
G- B
G- Y
W- B W- B BR
W- B
W- B W- BW- BBR SB
G- Y
G- Y
W- B
W- B
W- B
W W- BG- Y G- Y
G- Y
G- B
WG- Y
SB
G- YG- Y G- B W- BW
W- B
W- B
A3
A A
AA16 T1 1
C16
C28 J11 R13
F 4
J 3
C12(
A)
, C15(
D)
W- B W- B+B
LLEHW
GND
EL
ER
LR
1 3
2
(
*2)
(
*1) (
*2) (
*2)
(
*1) (
*1)
HZR
GN D * 2 : w/o Navigation System * 1 : w/ Navigation System
Combination Meter
Combination SW
Front Turn Signal Light RH Rear Combination
Light RH
Turn Signal Flasher
Juncti on
ConnectorJunction
Connector
Center Cluster
Integration Panel
HZD
GND
A45(
A)
, A47(
C)
A/C Control
Assembly
II 3E 35 1 B- W
IG
Page 2143 of 3115

2004 LAND CRUISER (EWD548U)
136Turn Signal and Hazard Warning Light
T11 Turn Signal Flasher
4-Ground : Always approx. 12 volts
1-Ground : Approx. 12 volts with ignition SW at ON or ST position
7-Ground : Always continuity
: Parts Location
CodeSee PageCodeSee PageCodeSee Page
A45A70C2870R1073
A47C70F368R1373
C12A70F468T1171
C15D70J371T1573
C1670J1171
:Junction Block and Wire Harness Connector
CodeSee PageJunction Block and Wire Harness (Connector Location)
1A24Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
1B24Engine Room No.2 Wire and Engine Room J/B (Engine Compartment Left)
2A28Engine Room No 2 Wire and Cowl Side J/B LH (Left Kick Panel)2B28Engine Room No.2 Wire and Cowl Side J/B LH (Left Kick Panel)
2D28Dash Wire and Cowl Side J/B LH (Left Kick Panel)2E28Dash Wire and Cowl Side J/B LH (Left Kick Panel)
2K28Floor No.1 Wire and Cowl Side J/B LH (Left Kick Panel)
2Q30Instrument Panel Integration Wire and Cowl Side J/B LH (Left Kick Panel)
3A40Engine Room No.2 Wire and Cowl Side J/B RH (Right Kick Panel)
3D40Dash Wire and Cowl Side J/B RH (Right Kick Panel)3E40Dash Wire and Cowl Side J/B RH (Right Kick Panel)
3K40Floor No.2 Wire and Cowl Side J/B RH (Right Kick Panel)
3N43Dash Wire and Cowl Side J/B RH (Right Kick Panel)3P43Dash Wire and Cowl Side J/B RH (Right Kick Panel)
3Q42Instrument Panel Integration Wire and Cowl Side J/B RH (Right Kick Panel)
:Connector Joining Wire Harness and Wire Harness
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
EA276Engine Room Main Wire and Engine Room No.2 Wire (Engine Compartment Right)
II380Dash Wire and Column Wire (Near the Ignition SW)
IX182Instrument Panel Integration Wire and Engine Wire (Behind the Glove Box)
BD286Floor No.3 Wire and Floor No.1 Wire (Left Rear Side Quarter Panel)
BL588Floor No.2 Wire and Floor No.3 Wire (Right Side of Rear Floor Crossmember)
:Ground Points
CodeSee PageGround Points Location
EA76Front Right Side of Fender Apron
EC76Rear Bank of Right Cylinder Head
EE76Front Left Side of Fender Apron
IF78Set Bolt of Cowl Side J/B LH
II78Set Bolt of Cowl Side J/B RH
BK86Front Side Under the Front Passenger's Seat
BM86Left Rear Side Quarter Panel
:Splice Points
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
B1188Floor No.1 WireB2588Floor No.2 Wire
Service Hints
Page 2144 of 3115
2004 LAND CRUISER (EWD548U)
137 Memo