Page 2249 of 3115

2004 LAND CRUISER (EWD548U)
242SRS
*The SRS airbag are provided for the driver and front passenger. The SRS airbags have been designed to help reducing
the shocks to the heads and chests of the driver and front passenger in the event of a severe frontal impact collision as
supplements to the seat belts.
This system is a 3-sensor type airbag system to detect the impact during a front collision using the center airbag sensor
assembly and airbag sensor front LH, RH, and to make the airbag system and pretensioner operate as well.
*In this system, a front side collision is detected by the side airbag sensor front LH, RH in order to simultaneously deploy
the side and curtain shield airbags. A rear side collision is detected by the side airbag sensor rear LH, RH in order to
deploy only the curtain shield airbag.
*Roll sensing of curtain shield airbags control has been adopted in order to deploy the curtain shield airbags and the
pretensioners for the driver and front passenger, in the event that the vehicle rolls over.
A roll sensing of curtain shield airbags cutoff SW is provided on the driver side of the instrument panel to enable the driver
to disable this system.
*Dual-stage SRS airbags system, that controls the airbag inflating output optimum by judging the extent of impact and seat
position (Driver seat), has been used for the driver and front passenger airbags.
*In accordance with the adoption of the dual-stage SRS airbag system, a seat position sensor has been established for the
driver seat.
*This system has adopted a fuel cut control that stops the fuel pump when the airbag is deployed.
: Parts Location
CodeSee PageCodeSee PageCodeSee Page
A1568C27C70R4071
A1668C2972S1173
A2770C3072S1273
A2870D770S1373
B574E970S1473
B770J771S1774
C12A70J1271S1874
C13B70J1571S1974
C14C70J2272T771
C25A70P2173
C26B70P2273
:Junction Block and Wire Harness Connector
CodeSee PageJunction Block and Wire Harness (Connector Location)
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)
3D
3E40Dash Wire and Cowl Side J/B RH (Right Kick Panel)
3F
(g )
3Q42Instrument Panel Integration Wire and Cowl Side J/B RH (Right Kick Panel)
4C52Dash Wire and J/B No 4 (Instrument Panel Center)4E52Dash Wire and J/B No.4 (Instrument Panel Center)
7B64Dash Wire and J/B No.7 (Behind the Grove Box)
System Outline
Page 2250 of 3115

2004 LAND CRUISER (EWD548U)
243
:Connector Joining Wire Harness and Wire Harness
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
EA176Engine Room Main Wire and Engine Room No.2 Wire (Engine Compartment Right)
EF176Engine Room No.2 Wire and Engine Room Main Wire (Under the Engine Room J/B)
IB178Engine Room No.2 Wire and Dash Wire (Left Kick Panel)
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)
II480Dash Wire and Column Wire (Near the Ignition SW)
IT180Engine Room No.2 Wire and Dash Wire (Right Kick Panel)
IU182Instrument Panel Integration Wire and Dash Wire (Behind the Glove Box)
Ia184Dash Wire and Dash Wire (Behind the Combination Meter)
BM290Floor No.1 Wire and Front Seat LH Wire (Front Side Under the Driver's Seat)
BU188Floor No.1 Wire and Floor No.1 Wire (Near the Left Rear Suspension Support)
:Ground Points
CodeSee PageGround Points Location
IF78Set Bolt of Cowl Side J/B LH
IH78Set Bolt of Cowl Side J/B RH
BJ86Under the Driver's Seat
BM86Left Rear Side Quarter Panel
:Splice Points
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
B1188Floor No.1 Wire
Page 2251 of 3115
2004 LAND CRUISER (EWD548U)
244Shift Lock
IF 3P 8
3P 1 3P 9
2110 954 3
2
1 10A
ECU- IG1
2D 16
4D 10
4D 1
4From Power Source System (
See Page 94)
2D 31
1 2
3M 4
3P 11
112E 26
2D 35
G- R B- W B- W
G- WG- W
G- W
G- R
G
G- W
L- R
L
W- B
W- BL- W
W- B
K 315A
STOP
S 5
A48IG STP
E KLS+P1
P
P2
SLS+
SLS-Shift Lock
Control SW
Shift Lock
Solenoid
2E 18
Key Interlock SolenoidStop Light SW
Shift Lock Contr ol ECU 23
AM1ACC
IG1
B- R B- G
B B
2E 39
7. 5A
AM1
2C 1
1
120A
J/B
NO. 2
140A
ALT
Fusible Link Block F16
Ignition SW I18
Battery3
ACC7A 6
7C 1
Page 2252 of 3115

2004 LAND CRUISER (EWD548U)
245
1. Shift Lock Mechanism
When the brake pedal is depressed with the ignition SW is turned on (Stop light SW on), the shift lock control ECU is
activated and allows the driver to change the shift lever to a position other than P position.
2. Key Interlock Mechanism
When the ignition SW is turned on and the shift lever is at a position other than P position, shift lock control ECU is activated
to flow current to the key interlock solenoid. This inhibits to turn the ignition SW from on to OFF position.
A48 Shift Lock Control ECU
3-Ground : Approx. 12 volts with ignition SW at ACC or ON position
4-Ground : Approx. 12 volts with ignition SW at ON or ST position
11-Ground : Approx. 12 volts with brake pedal depressed
10-Ground : Always continuity
: Parts Location
CodeSee PageCodeSee PageCodeSee Page
A4870I1870S571
F1668K371
:Junction Block and Wire Harness Connector
CodeSee PageJunction Block and Wire Harness (Connector Location)
2C
2D28Dash Wire and Cowl Side J/B LH (Left Kick Panel)
2E
()
3M43Dash Wire and Cowl Side J/B RH (Right Kick Panel)3P43Dash Wire and Cowl Side J/B RH (Right Kick Panel)
4D52Dash Wire and J/B No.4 (Instrument Panel Center)
7A64Dash Wire and J/B No 7 (Behind the Glove Box)7C64Dash Wire and J/B No.7 (Behind the Glove Box)
:Ground Points
CodeSee PageGround Points Location
IF78Set Bolt of Cowl Side J/B LH
System Outline
Service Hints
Page 2253 of 3115
2004 LAND CRUISER (EWD548U)
246Center Differential Lock
10A
GAUGE2
3E 3
R- L
Ib2 6
R- L
IN2 14
R- L
EB1 11
R- L
1 2
P- BB- LEB1 3
B- L
6D 31
6C 156D 32IX1 5
B- L SB
3Q 543B 202
3B 33
3Q 56 28 3Q 7. 5A
MET Fr om Power Source System (
See Page 94)
3Q 7
A 10
B 14 D1
A/T P
IX1 2
SB SB
SBB- L
P- B
EC 1 2IX1 8
BR BR
EB1 5
SB
A43
C12(
A)
, C13(
B)
, C15(
D) D 4D 5 B- L
W- B
W- B EXI2 EXI
Center
Diff. Lock
E10
W- B
W- B ABS & BA &
TRAC & VSC ECU
Combination Meter Detection SW
(
Center Diff. Lock)Detection SW
(
Transfer L Position)
E10
R- L
D 12 D11
D 19 D20 10A
ECU- B2
3Q 44
SB SB SB
IU1 9
2Q 66
2E 24AA
Junction
Connector J14
SBSB B
P- BR- L
P- B
B
R- L
B- L
W- B
Page 2254 of 3115
2004 LAND CRUISER (EWD548U)
247
D 4
EB1 8
Y- G Y- G
39 6D6D 38
Y- G
C 11
1 2
E 9
W- B
10A
GAU GE1
2D 19
R- L
4D 17
4C 5 E 7(
C)
, E 8(
D)
, E 9(
E)
D 6
R- L R- LB- L
W- B L4 TFN
W- B
(
*1)
(
*2)
* 2 : w/o Navigation System * 1 : w/ Navigation System
Detection SW
(
Tr ansfer Neutral Position)
Engine Control Module2Q 65
SB
D 29 MPX1 MPX2
E 6
6C 4
6D 13
P1
3 6D 12IX1 1IU3 217PP
D 18 Body ECU B 8From Power Source System (
See Page 94)
G- W SB
G- W
P- B R- L
B
Park/Neutral
Position SW P 1R- L
R- L
B
B
W- B P- B
B
R- L
B- L
W- B
G- W G- W
(
*2)
(
*1) SB
Y- G
If1 10
Page 2255 of 3115
2004 LAND CRUISER (EWD548U)
248Center Differential Lock
REL2 M2 M1 REL1 GND2WD 4WD IG
10 4 1 5 2
G- B
6B 3
6D 4
G- B
EB1 12
M EB1 2 EB16 EB11 IN2 5IN213
G- R
G
Ib2 10 Ib21
G- Y
6B 2
6D 5
G- Y
21 53
II 3E 6
G- B
G- R
G
G- Y W- B
W- BG- R G- R
G G
C 2 963
B
B- R
L- B
Ib2 3Ib22
B
B- R
Ib1 3Ib1220A
DIFF From Power Source System (
See Page 94)
3E 5
C28
C 5A45
26 25 13 1
27 2
B- R
B
B- R
B
BBB- R
B- R R- L
W- B
(
*1)
(
*2)(
*2)
(
*1)
(
*1) (
*1) (
*2) (
*2)
(
*1)
4WD 4WD 2WD2WD
DEFC DEFC
4
Center Diff. Lock Contr ol Motor
Center Diff. Lock Control RelayA/C Control Assembly
Center Cluster Integration Panel
4C 3 4A 10 4C 12
4F 34E64E4 MPX+ MPX-
19 39
B
P- B B
B
P- B
411
MPD1 MPD2
Gateway ECU G 4 R- L
R- L
B
B (
*2)
(
*1)
(
*1)
(
*1)(
*1)
(
*1)
* 2 : w/o Navigation System * 1 : w/ Navigation System
Page 2256 of 3115

2004 LAND CRUISER (EWD548U)
249
C5 Center Diff. Lock Control Relay
3-Ground : Approx. 12 volts with ignition SW at ON or ST position
2-Ground : Always continuity
: Parts Location
CodeSee PageCodeSee PageCodeSee Page
A4370C13B70E7C70
A4570C15D70E8D70
B870C2870E9E70
C268D468G470
C570D568J1471
C12A70D668P169
:Junction Block and Wire Harness Connector
CodeSee PageJunction Block and Wire Harness (Connector Location)
2D28Dash 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)
3B40Engine Room No.2 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)
4A
4C
4D52Dash Wire and J/B No.4 (Instrument Panel Center)
4E
()
4F
6B60Dash Wire and J/B No 6 (Behind the Grove Box)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)
EB176Engine Wire and Transmission Wire (On the Transmission)
IN280Engine Wire and Dash 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)
IX182Instrument Panel Integration Wire and Engine Wire (Behind the Glove Box)
Ib184Dash Wire and Dash Wire (Behind the Combination Meter)Ib284Dash Wire and Dash Wire (Behind the Combination Meter)
If184Engine Wire and Engine Wire (Behind the Glove Box)
:Ground Points
CodeSee PageGround Points Location
EC76Rear Bank of Right Cylinder Head
II78Set Bolt of Cowl Side J/B RH
:Splice Points
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
E976Transmission WireE1076Engine Wire
Service Hints