1986 TOYOTA LAND CRUISER ignition

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)
149
BR1 5
BR1 4
2L 18
2E 126 2
2E 15
2L 33Q 80
3K 22
V 7
R27
T10
G- W
SB
L- YR
W
G- Y
G- W R
SB
L- Y G- Y
R
R
SB
B 7(
A)
, B 8(
B)
, B 9(
C)
ILE
13
2 11
OFF
DOOR ON
W
2 B 7
R
R
W- B
W- B
R
3J 7
G- YR R R R
V 6
R
B 7 B 7
2 1
R W- B
W- B
F11
2 1B 7
B 7
R W- B
R
G- W
2E 22 2K22 2I42Q27
Front Personal Light
Rear Inter ior Light
Ignition Key Cylinder Light Vanity Light LH
Vanity Light RH
Body ECU

2004 LAND CRUISER (EWD548U)
153
Normal Operation
*When the front Door LH or RH is opened, the door courtesy light front LH, RH and open door warning light is turned on.
When the front door LH and RH are closed, the door courtesy light front LH, RH is turned off.
*When the rear door LH, RH or the back door is opened, door courtesy light rear LH, RH, rear interior light and the open
door warning light is turned on. When the rear door LH, RH and back door are closed, the door courtesy light rear LH, RH
is turned off.
*When all the doors are closed, the open door warning light is turned off.
Turn Off Function
When the ignition SW turned off and there is no change in the door courtesy SW for approx. 30 minute, the DOME relay is
turned off. The DOME relay is turned on again when any of the following conditions are met.
*Ignition SW is turned from OFF position to ACC or ON position
*Change to any door courtesy SW
*Driver or front passenger door is unlocked by the key or transmitter
Immediate Turn Off Function at Door Lock
When all the doors are closed, and the driver or front passenger door is locked by the key or transmitter, the DOME relay is
turned off, after approx. 80 seconds. However, when the illuminated entry system is operating, the DOME relay is turned off
after the operation is completed. the DOME relay is turned on again when any of the following conditions are met.
*Ignition SW is turned from OFF position to ACC or ON position
*Change to any door courtesy SW
*Driver or front passenger door is unlocked by the key or transmitter
Illuminated Entry System
*When any door is opened, each light is turned on.
*The light remains on for approx. 15 seconds after all doors are closed, and fades out.
*With the ignition SW is at ACC or ON position, and any door open, when all the doors are closed, each light fades out
immediately.
*When the ignition SW is turned to ACC or ON position during timer lighting, each light fades out immediately.
*When the doors are locked during timer lighting, each light fades out immediately.
*The lights include, the front interior light, ignition key cylinder light, and front door courtesy light LH, RH.
: Parts Location
CodeSee PageCodeSee PageCodeSee Page
B272D1372F1172
B372D1472J1471
B7A70D1572J2272
B8B70D1672P1273
B9C70D1772R2773
C12A70D1872T571
C15D70D1972T1071
D1072D2072V673
D1172D2772V773
D1272F1072
:Junction Block and Wire Harness Connector
CodeSee PageJunction Block and Wire Harness (Connector Location)
2E28Dash Wire and Cowl Side J/B LH (Left Kick Panel)2G28Dash Wire and Cowl Side J/B LH (Left Kick Panel)
2I28Front Door LH Wire and Cowl Side J/B LH (Left Kick Panel)
2K28Floor No.1 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)
3E40Dash Wire and Cowl Side J/B RH (Right Kick Panel)
3I40Front Door RH Wire and Cowl Side J/B RH (Right Kick Panel)3J40Front Door RH 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)
System Outline

2004 LAND CRUISER (EWD548U)
165
The automatic light control system works when the light control SW is turned to AUTO. The automatic light control sensor
detects the brightness around the vehicle. By this function, the system automatically turns the taillight and headlight on if the
brightness is below the regular level and turns the taillight and headlight off when the surroundings become brighter than the
regular level.
Body ECU
11, 12-Ground : Always approx. 12 volts
22-Ground : Approx. 12 volts with ignition SW at ACC or ON position
10-Ground : Approx. 12 volts with ignition SW at ON or ST position
4, 16-Ground : Always continuity
: Parts Location
CodeSee PageCodeSee PageCodeSee Page
A3170C1670M5A71
A4770F1568M9B71
B7A70J371R671
B9C70J971
: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)
2E28Dash 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)
3Q42Instrument Panel Integration Wire and Cowl Side J/B RH (Right Kick Panel)
4A52Dash Wire and J/B No.4 (Instrument Panel Center)
5B56Dash Wire and J/B No.5 (Behind the Combination Meter)
5D56Engine Room No.2 Wire and J/B No.5 (Behind the Combination Meter)
: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)
II380Dash Wire and Column Wire (Near the Ignition SW)II580Dash Wire and Column Wire (Near the Ignition SW)
IM280Instrument Panel Integration Wire and Instrument Panel No.3 Wire (Right Side of Instrument Panel)
IU382Instrument Panel Integration Wire and Dash Wire (Behind the Glove Box)
: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
System Outline
Service Hints

2004 LAND CRUISER (EWD548U)
167
The light auto turn off system automatically turns the taillight or headlight off according to the door open or close on the
driver's side, and prevent failing to turn off the lights.
If the ignition switch is turned to OFF from ON with the headlight or taillight is on, the signal is input in the TERMINAL SIG of
the body ECU. If the driver's side door is opened at that time, the signal from the door courtesy SW front LH is sent to the
TERMINAL DCTY of the body ECU. The signal turns the headlight or taillight off.
Delayed turn off control
In the case of that some doors are opened, the headlight or taillight is left on for about 30 seconds after the all the doors was
closed. However, if the doors are locked using the wireless door lock, the headlight or taillight is immediately turn off.
Body ECU
11, 12-Ground : Always approx. 12 volts
10-Ground : Approx. 12 volts with ignition SW at ON or ST position
4, 16-Ground : Always continuity
: Parts Location
CodeSee PageCodeSee PageCodeSee Page
B7A70C1670J371
B8B70D1472J971
B9C70F1568U171
: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)
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)
3E40Dash 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)
5B56Dash Wire and J/B No.5 (Behind the Combination Meter)
5D56Engine Room No.2 Wire and J/B No.5 (Behind the Combination Meter)
:Connector Joining Wire Harness and Wire Harness
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
II380Dash Wire and Column Wire (Near the Ignition SW)II580Dash Wire and Column Wire (Near the Ignition SW)
: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
System Outline
Service Hints

2004 LAND CRUISER (EWD548U)
173
BR1 5
BR1 4
2L 18
2E 126 2
2E 15
2L 33Q 80
3K 221 2
1 2
1 2
1 2 IY2 12 BC42IC212 BA42 IV4 8ID420 B 22 B21 A 26 A 25
BC4 1 BA41
V 6
V 7
R27
D11
D13
D10
D12T10
G- W
B- G
SB
L- YR
W
G- Y
G- W
R
R
R
R
RG-RG- WG- RG- B
G- R
G- Y G- YG- RG- B
G- W R
PCYL RCYL DCYL LCYL
B- G
SB
L- Y G- Y
R
R
SB
R R
B 7(
A)
, B 8(
B)
, B 9(
C)
ILE
13
2 1
2 11
OFF
DOOR ON
W
23J 7 B 7 B 7
B 7
R
R
R
W- B
W- B
W- B
R
G- Y W- BR2Q 27 2I 4 2K 22 2E 22
Door Courtesy Light Front LH Door Courtesy Light Front RH
Door Courtesy Light Rear LH Door Courtesy Light Rear RH Rear Inter ior Light
Ignition Key Cylinder Light Vanity Light LH
Vanity Light RH
Body ECU
B- GB- G

2004 LAND CRUISER (EWD548U)
192Multiplex Communication System
The multiplex communication system communicates among the body ECU, theft deterrent ECU, power window master SW,
power window control SW front RH, power window control SW rear LH, power window control SW rear RH, center airbag
sensor assembly and tilt and telescopic ECU, among the combination meter, engine control module, A/C control assembly
and gateway ECU and controls the following systems according to the signals from respective sensors or switches.
For details, please refer to the new car features and/or the repair manual.
Body ECU
11, 12-Ground : Always approx. 12 volts
22-Ground : Approx. 12 volts with ignition SW at ACC or ON position
10-Ground : Approx. 12 volts with ignition SW at ON or ST position
4, 16-Ground : Always continuity
: Parts Location
CodeSee PageCodeSee PageCodeSee Page
A3170D1872J1471
A45A70D1972J2272
A47C70D2072M272
B272D2172M5A71
B372D2272M9B71
B472D2372P169
B574D2472P873
B7A70D2772P1273
B8B70E368P1473
B9C70E8D70P1573
C12A70E9E70P1673
C13B70F168P1773
C14C70F268P1873
C15D70F1072P1973
C1670F1172P2073
C2670F1568R671
D2A68G168R2773
D3B68G470S571
D770H169T169
D1072H269T571
D1172H369T771
D1272H469T1071
D1372J371U171
D1472J671V269
D1572J971V673
D1672J1071V773
D1772J1371Z171
System Outline
Service Hints

2004 LAND CRUISER (EWD548U)
194Multiplex Communication System
: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)
EB176Engine Wire and Transmission Wire (On the Transmission)
EE176Engine Room Main Wire and Alternator Wire (Near the Battery)
IC278Front Door LH Wire and Dash Wire (Left Kick Panel)
ID478Dash Wire and Floor No.1 Wire (Left Kick Panel)
IF178Instrument Panel Integration Wire and Instrument Panel Wire (Left Side of Instrument Panel)
IG178Engine Room No.2 Wire and Dash Wire (Behind the Combination Meter)
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)
IL380Instrument Panel Integration Wire and Computer Wire (Instrument Panel Center)
IM280Instrument Panel Integration Wire and Instrument Panel No.3 Wire (Right Side of Instrument Panel)
IN280Engine Wire and Dash Wire (Behind the Glove Box)
IU1
IU382Instrument Panel Integration Wire and Dash Wire (Behind the Glove Box)
IU4
g()
IV382Dash Wire and Floor No 2 Wire (Right Kick Panel)IV482Dash Wire and Floor No.2 Wire (Right Kick Panel)
IX182Instrument Panel Integration Wire and Engine Wire (Behind the Glove Box)
IY282Front Door RH Wire and Dash Wire (Right Kick Panel)
Ib284Dash Wire and Dash Wire (Behind the Combination Meter)
BA386Rear Door LH Wire and Floor No 1 Wire (Left Side of Center Pillar)BA486Rear Door LH Wire and Floor No.1 Wire (Left Side of Center Pillar)
BC386Rear Door RH Wire and Floor No 2 Wire (Right Side of Center Pillar)BC486Rear Door RH Wire and Floor No.2 Wire (Right Side of Center Pillar)
BD486Floor No.3 Wire and Floor No.1 Wire (Left Rear Side Quarter Panel)
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)
BL588Floor No.2 Wire and Floor No.3 Wire (Right Side of Rear Floor Crossmember)
BM290Floor No.1 Wire and Front Seat LH Wire (Front Side Under the Driver's Seat)
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)
BS188Door Lock LH Sub Wire and Front Door LH Wire (Front Door LH)
BT188Door Lock RH Sub Wire and Front Door RH Wire (Front Door RH)
BU188Floor No.1 Wire and Floor No.1 Wire (Near the Left Rear Suspension Support)
:Ground Points
CodeSee PageGround Points Location
EA76Front Right Side of Fender Apron
EC76Rear Bank of Right Cylinder Head
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
BK86Front Side Under the Front Passenger's Seat