
2004 LAND CRUISER (EWD548U)
106Charging
G2 Generator
1-Ground : 13.2-14.0 volts with engine running at 5000 rpm and 115°C (239°F)
: Parts Location
CodeSee PageCodeSee PageCodeSee Page
A4570E7C70G2B68
B770E8D70G470
C12A70F1968
C15D70G1A68
: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)
2Q30Instrument Panel Integration Wire and Cowl Side J/B LH (Left Kick Panel)
3Q42Instrument Panel Integration Wire and Cowl Side J/B RH (Right Kick Panel)
4A
4C52Dash Wire and J/B No 4 (Instrument Panel Center)4E52Dash Wire and J/B No.4 (Instrument Panel Center)
4F
6C60Dash Wire and J/B No.6 (Behind the Grove Box)
6D60Engine Wire and J/B No.6 (Behind the Grove Box)
: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)
IU182Instrument Panel Integration Wire and Dash Wire (Behind the Glove Box)
IX182Instrument Panel Integration Wire and Engine Wire (Behind the Glove Box)
If184Engine Wire and Engine Wire (Behind the Glove Box)
:Ground Points
CodeSee PageGround Points Location
EC76Rear Bank of Right Cylinder Head
Service Hints

2004 LAND CRUISER (EWD548U)
122Engine Control
:Connector Joining Wire Harness and Wire Harness
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
EB176Engine Wire and Transmission Wire (On the Transmission)EB376Engine Wire and Transmission Wire (On the Transmission)
EC176Engine No.2 Wire and Engine Wire (On the Transmission)
EE176Engine Room Main Wire and Alternator Wire (Near the Battery)
IA278Engine Room No.2 Wire and Floor No.1 Wire (Left Kick Panel)
ID478Dash Wire and Floor No.1 Wire (Left Kick Panel)
IG178Engine Room No 2 Wire and Dash Wire (Behind the Combination Meter)IG478Engine Room No.2 Wire and Dash Wire (Behind the Combination Meter)
IN280Engine Wire and Dash Wire (Behind the Glove Box)
IU182Instrument Panel Integration Wire and Dash Wire (Behind the Glove Box)
IW382Engine Room No.2 Wire and Dash Wire (Behind the Glove Box)
IX182Instrument Panel Integration Wire and Engine Wire (Behind the Glove Box)IX282Instrument Panel Integration Wire and Engine Wire (Behind the Glove Box)
Ib284Dash Wire and Dash Wire (Behind the Combination Meter)
Id184Dash Wire and Dash Wire (Instrument Panel Center)Id384Dash Wire and Dash Wire (Instrument Panel Center)
If184Engine Wire and Engine Wire (Behind the Glove Box)
BB186Floor No.1 Wire and Fuel Tank Wire (Near the Fuel Tank)
BD386Floor No.3 Wire and Floor No.1 Wire (Left Rear Side Quarter Panel)
:Ground Points
CodeSee PageGround Points Location
EA76Front Right Side of Fender ApronEB76Front 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
:Splice Points
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
E476Engine Room No 2 WireE1176Engine Wire
E576Engine Room No.2 WireE13
E876Transmission WireE1476Engine Room No.2 Wire
E1076Engine WireE16
g

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

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

2004 LAND CRUISER (EWD548U)
143
2 1R40
1
2
P 6
1
2
P 7
5
6
R 5
I18 I18
I19 I19
IF2 6
A
AAB 8
D 7
E E2B 11
2Q 832D 15
2Q 55
IF 2Q 43 3Q58
SB
SB
AAAAIQ1 21 2IQ1 1
W- B G
A A
SB SB
IF2 1
IX2 5
EC IH2 5IH2 2A AA3D 35
3Q 68
SB
3K 20
4 1
IU1 13
SB SB SB W- GG
G
G
G W- G
W- G
W- G
W- G
SB
GG
W- GSB
SB
SB
SBJ 6
C18 G 3C13(
B)
, C15(
D)
J 7
G
G SB SB
G
G
SB GG
BR SB SB SB SB
BR
II
J 7
Combination Meter
Combination SW Glove Box LightPower Quarter
Window SW LH
Power Quarter
Window SW RH
Remote Control Mirror SW
Junction Connector
Junction
Connector
Junction
Connector
Junction
Connector J12
O 5
Over head J/B
2L 14
W- B 1 GN D
W- B
2L 5
16
GILL
G G
W- G G G
G
W- G
Roll Sensing of Curtain
Shield Airbags Cutoff SW

2004 LAND CRUISER (EWD548U)
146Illumination
C16 Combination SW
14-16 : Closed with light control SW at TAIL or HEAD position
: Parts Location
CodeSee PageCodeSee PageCodeSee Page
A2970G370M571
A3272J371M971
A4770J671O572
A4870J771P671
B9C70J9A71P771
C1170J10B71R571
C13B70J1271R671
C15D70J1471R3671
C1670J18A71R4071
C1870J19B71S371
C2870J20A71S471
E470J21B71
F1568J2372
:Junction Block and Wire Harness Connector
CodeSee PageJunction Block and Wire Harness (Connector Location)
1B24Engine Room No 2 Wire and Engine Room J/B (Engine Compartment Left)1C24Engine 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)
2D28Dash Wire and Cowl Side J/B LH (Left Kick Panel)
2L28Roof 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)
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)
3Q42Instrument Panel Integration Wire and Cowl Side J/B RH (Right Kick Panel)
4A
4B
4C52Dash Wire and J/B No 4 (Instrument Panel Center)4D52Dash Wire and J/B No.4 (Instrument Panel Center)
4E
4F
:Connector Joining Wire Harness and Wire Harness
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
IF178Instrument Panel Integration Wire and Instrument Panel Wire (Left Side of Instrument Panel)IF278Instrument Panel Integration Wire and Instrument Panel Wire (Left Side of Instrument Panel)
IH280Instrument Panel Integration Wire and Column Wire (Near the Ignition SW)
II380Dash Wire and Column Wire (Near the Ignition SW)II580Dash Wire and Column Wire (Near the Ignition SW)
IQ180Instrument Panel Integration Wire and Lamp Wire (Behind the Glove Box)
IU182Instrument Panel Integration Wire and Dash Wire (Behind the Glove Box)IU382Instrument Panel Integration Wire and Dash Wire (Behind the Glove Box)
IX282Instrument Panel Integration Wire and Engine Wire (Behind the Glove Box)
Service Hints

2004 LAND CRUISER (EWD548U)
154Interior Light
:Connector Joining Wire Harness and Wire Harness
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
IC278Front Door LH Wire and Dash Wire (Left Kick Panel)
ID478Dash Wire and Floor No.1 Wire (Left Kick Panel)
IL380Instrument Panel Integration Wire and Computer Wire (Instrument Panel Center)
IU382Instrument Panel Integration Wire and Dash Wire (Behind the Glove Box)
IV382Dash Wire and Floor No 2 Wire (Right Kick Panel)IV482Dash Wire and Floor No.2 Wire (Right Kick Panel)
IY282Front Door RH Wire and Dash Wire (Right Kick Panel)
BA486Rear Door LH Wire and Floor No.1 Wire (Left Side of Center Pillar)
BC486Rear Door RH Wire and Floor No.2 Wire (Right Side of Center Pillar)
BH186Pillar No 1 Wire and Back Door Upper Wire (Left Side of Back Door)BH286Pillar No.1 Wire and Back Door Upper Wire (Left Side of Back Door)
BP388Pillar No 1 Wire and Floor No 1 Wire (Left Rear Side Quarter Panel)BP488Pillar No.1 Wire and Floor No.1 Wire (Left Rear Side Quarter Panel)
BQ288Back Door Lower Wire and Floor No.1 Wire (Left Rear Side Quarter Panel)
BR188Roof No.3 Wire and Roof No.1 Wire (Front Side of Roof)
:Ground Points
CodeSee PageGround Points Location
IF78Set Bolt of Cowl Side J/B LHIG78Set Bolt of Cowl Side J/B LH
II78Set Bolt of Cowl Side J/B RH
BJ86Under the Driver's Seat
:Splice Points
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
B288Front Door LH WireB888Front Door RH Wire
B788Roof No.1 WireB1188Floor No.1 Wire

2004 LAND CRUISER (EWD548U)
160Trailer Towing
T15 Towing Converter Relay
1-Ground : Always approx. 12 volts
6-Ground : Always continuity
S5 Stop Light SW
2-1 : Closed with brake pedal depressed
: Parts Location
CodeSee PageCodeSee PageCodeSee Page
J2272T1171T1871
P169T1273T2373
S571T1573
:Junction Block and Wire Harness Connector
CodeSee PageJunction Block and Wire Harness (Connector Location)
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)
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)
3E40Dash Wire and Cowl Side J/B RH (Right Kick Panel)
3K40Floor No.2 Wire and Cowl Side J/B RH (Right Kick Panel)
3M43Dash Wire and Cowl Side J/B RH (Right Kick Panel)
6A60Dash Wire and J/B No 6 (Behind the Grove Box)6C60Dash Wire and J/B No.6 (Behind the Grove Box)
:Connector Joining Wire Harness and Wire Harness
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
IA278Engine Room No.2 Wire and Floor No.1 Wire (Left Kick Panel)
ID478Dash Wire and Floor No.1 Wire (Left Kick Panel)
IN280Engine Wire and Dash Wire (Behind the Glove Box)
Ib284Dash Wire and Dash Wire (Behind the Combination Meter)
BD286Floor No.3 Wire and Floor No.1 Wire (Left Rear Side Quarter Panel)
BL188Floor No 2 Wire and Floor No 3 Wire (Right Side of Rear Floor Crossmember)BL588Floor No.2 Wire and Floor No.3 Wire (Right Side of Rear Floor Crossmember)
BX188Frame No.4 Wire and Floor No.3 Wire (Left Side of Rear Floor Crossmember)
:Ground Points
CodeSee PageGround Points Location
II78Set Bolt of Cowl Side J/B RH
BJ86Under the Driver's Seat
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 WireB2488Floor No.1 Wire
B1688Floor No.3 Wire
Service Hints