diagram TOYOTA LAND CRUISER 1998 Factory Repair Manual

2004 LAND CRUISER (EWD548U)
M OVERALL ELECTRICAL WIRING DIAGRAM
1
234
30 LAND CRUISER(
Cont. next page)
30A
BAT 1B 24 1B9
15A
AM2
1C 12E 41
2A 10
2A 1C 1A 1B7. 5A
PANEL 1B 63 1B 49
1C 27. 5A
AM1
2C 12E 39
1 2
5 3
1 2
5 3
2E 40
IFSe t Bol t o f
Co wl S i de J/ B L H 7. 5A
ACC 2Q 57
10A
GAUGE12Q 65 2E37 2Q772
7ACC
IG1
IG2
ST2 AM13
4
6 AM2
6B 5
6D 26B 4
6D 3
4IX1 A A
3E 43Q50 3Q51
3 4
212
3 5 3Q 39 3C 1
10A GAUGE27. 5A MET
3E 33Q7
IISet Bolt of
Cowl Side J/B RH 3Q 52
3IX1 Short
Pin
(
A)
Bat tery
B- G B- G B- G B- G
TAIL
Re la y
L- O W- R Taillight
Sy st em
<8- 1>B- R L- BSB B- R
I18
B- RSB BIG1 NO. 3
Re la y
ACC CUT
Re la ySB
B- R
SB
B- G
B- R
W- R
ACC
RelayIG1
NO. 2
Re la y
F1 5(
A)
, F16(
B)
, F17(
C) W- RA
B
C
D
E
F L- O
G
SB
SB
SB
R- L
R- LSB
SB
SB
B- R
GEngine Cont rol
Sy st e m< 4- 2 >
120A
MAI N120A
J/ B NO. 1 120A
J/B NO. 3120A
J/B NO. 2
Power Source
140A
ALT
J 4B
L- B
1 2
1 Ignition SW
Junct ion Connector
Fusible Link Block
B7A 6
7A 5

2004 LAND CRUISER (EWD548U)
M OVERALL ELECTRICAL WIRING DIAGRAM
1112
10 9
(
Cont. next page)
30 LAND CRUISER (
Cont' d)
Combination Meter
L A/T P CRUISE 2nd STRT ECT PWRSRSFu el Charge A/T OIL
TEMP
11 C 7 C 20 D 19 D7D 4C 17C 16C 10D
Door Beam14 D 5 A 8B
3A 7A G SB
B A
2B 11
2Q 83
SB G
Multiplex
Communic at ion
System< 1- 35> Se at Be lt War ni ng
Sy st em< 25- 3>
E E
9IX2
ECRear Bank of Right
Cylinder Head D DSB SB WBRJ12
J17
O 2 SB Multiplex
Communication
Sy st em< 1- 34>
Multiplex
Communic at ion
System< 1- 34>
Mult i- Display
System< 29- 3>
SRS Sy st em
<13- 1>
(
Shielded) Illumination
System< 9- 5>
Oil Pr essur e
Sender
Junct ion
Connect or Junc tion
Connec tor Combination Meter C1 2(
A)
, C13(
B)
, C14(
C)
, C15(
D)
1
MAINT
RE QD
He at Wi r e

2004 LAND CRUISER (EWD548U)
M OVERALL ELECTRICAL WIRING DIAGRAM
1
234
31 LAND CRUISER(
Cont. next page)
1B 24
1C 1
1C 1A 1B 2A7. 5A
AM1
2C 12E 39
120A
J/ B
NO. 1
140A
ALT 120A
MAIN120A
J/ B
NO. 2 30A
BAT
Battery1 2
5 315A
A/ C2D 25 2E 37 2Q77
10A GAUGE1
2D 19
IG1
NO. 2
Re la y
B- G B- G B- G B- G
L- OB- R
IFSet Bolt of Cowl Side
J/B LH 2ACC
IG1 AM1 4
1 2
3 5
IG1 NO. 3
Re la y10A ECU- IG2
3Q 39 3C1
IISet Bolt of Cowl Side
J/B RH F1 5(
A)
, F16(
B)
, F17(
C)
, F18(
D)I18
Sh or t
Pi n
(
A)
120A
J/B
NO. 3 50A
HTR1D2A 7 2B 3 3B 25 10A
ECU- B23K 19 3Q 71A
B
D
E
F
G
H
I
J
N
O Y- R
W- R W- B(
*1)
W- B R- LR- L R- L R- LL- B L- WSB
SB L- WL- B L- B
L- BSB B- G
Power Source
2IG511 1
41
2 5
3
1B 26 1B8 11B 16
1
EAFront Right Side of
Fender Apron 1B 56
1A 43 1A 34
2 13
W- B W- BL- R L- B R- L R- L
HTR RelayMG CLT
Relay
B 1ML
30A RR A/C
3K 39 3K35 3K42 3H 2
R B- WQ B- WP LG 23 2D 2 2D
SB
18 2EK W- B
W- B
B- YL
L- R Y- R
W- B
W- B
R- L W- B W- B
R- L
R- L
R- LR- L
(
*1)
C B- G
W- B
LG
B- W
B- W
W- B
* 1 : w/ Navigation System
2
1
Blower Motor
Controller I gnit ion SW
Fusible Link Block62D

2004 LAND CRUISER (EWD548U)
M OVERALL ELECTRICAL WIRING DIAGRAM
31 LAND CRUISER (
Cont' d)(
Cont. next page)
9
1012
11
C17C15C14C GND VER2 VER4 VER5
A AAAA 16A15A14A13A 12AFACE B/L FOOT F/D DEF
3N 22
3N 211 2
1 2 7B 17B 18B
5D 22 5B13 5B16
5B 14 1B 311A 25 TAM FRTR FRSG
5B 21 A 22 AFRTP FRAMH FRAMC
14B1A2ATPI AIF AI R
3N 23N43N13 3N15 3N 8
3N 19
3N 3 5A 5
5D 18
1B 46
1A 46
4 1 8CPSW
B
C
D
E
F
G
H
I
J
KC
D
E
F
G
H W- B
R- L
W- B
W- B
L- W
B- G
LG
B- W
B- W
L- B
L- W
A45(
A)
, A46(
B)
, A47(
C)
L- W
GR BR- WW P- L B- WW- B W- B W- B W- BL- W W- B
R- L W- B W- B L- Y Y- G Y- GY- G BY- GB- Y
P- B
P- G L- R L- RG- W LG- B G- R
Y- G
G- R
Y- G
L- W
B- G
LG
B- W
B- W
L- B 1234 5
67
A2 6
J11
A 4 A 1 R 7
12 4 3 2
345
A25
A24
A ir C onditioning (
Front)
A
B 5B 12
5D 23
1B 32
1A 13
L- Y L- Y L- Y
* 1 : w/ Na vi g at i o n S ys t em
Y- G
Dual
3N 11
AR- L(
*1)M FACE B/L FOOT FOOT/
DE FDEF
- +
War m Cool
M56G- R
Y- G
B- Y
Y- G
G- R
P- B
P
GND PT VZ HMOT MC OO L 12
A/C Ambient
Temp. Sens or
Pr es sur e SW Air Inlet Control Servo Motor
Air Mix Control Servo Motor
Air Vent Mode Contr ol Serv o MotorRoom Temp. Sensor
(
Fro nt)
A/C Control Assembly
Junction Connector
M
GND VZ PT MFRS MREC

2004 LAND CRUISER (EWD548U)
M OVERALL ELECTRICAL WIRING DIAGRAM
1920
18 17
(
Cont. next page)
31 LAND CRUISER (
Cont' d)
4A 3A 13A 7A
6 BW1 5 BW1 1 0 BW1 3 BW1
1BW1 2BW1 8BW1 4BW19A8A
2BD3 13BD314 BD3 7BL1 3BL44BL411 A A 12
D D
2 1 17 BD36BL4
D
10A
RR HTR
1C 2 1B 501B 52 1B71 A 14HRRH
3K 18
3B 10
2 1
M 18 IA2
19 BD3 18 BD31BL4 BL42 A 15 16 A
7BW1
A
B
C
D
E
FW- B
LG- R
B- G
LG
B- W
L- B
A ir C onditioning (
Rear)
L- B
R W- LR- YY Y- GW- L
Y GR- G GR- G
Y W- L
Y- G
Y- G
W- B LG- R
LG B- WY- G Y- G Y- GW- L
Y GR- G Y- GL- B B- G
L- BLLL-BW- B R- G
R- W R- WR- G
R- WR- G
L
Y- G
1232
1 BLWRC VMRC HRRC TER SG1 MCRMHR TINRVMRH BLWRH
J22
R 9
R2 6
RR HTR
Re la y
R2 2
A3 2(
A)
, A33(
B)
, A34(
C)
2 1 3 1
2 4
2 1
M
2 1
LG- R R- L
R- L R- L
L
4 1
W
WLG LG R- Y
W- B
23R W- LY- G Y
R21
R15
R14
R1 6 R1 7Cool War m
M 16 BD3 15 BD37BL4 BL45 6A 5A
GR- RR- Y R- Y
GR- R GR- RR- Y3 45TPR S5 1
GNDPTVZMHOT MCOOLA/C Amplifier (
Rear)
Rear Air Mix Cont rol Ser vo Motor
Rear Cooler
Blower MotorRear Cooler
Magnetic Valv e
Rear Cooler Power Tr ans ist or Rear Cooler
Re la yRear Evaporator
Temp. Sens or Re ar He at e r
Blower Motor
Rear Inlet Air Temp. Sens or
J unc tion
Connec tor
BJ Under the
Driver' s Seat 4
L- B
Rear Heat er Power
Tr ansist or R25
FF
Junct ion
Connect or J22 CB(
*2) CA(
*1)
CA(
*1)
CB(
*2) CA
CBJunction
Connec tor J23(
B)
, J25(
A)
Y- G
* 1 : w/ Navigation Syst em
* 2 : w/o Navigation System

M OVERALL ELECTRICAL WIRING DIAGRAM
2004 LAND CRUISER (EWD548U)
410

M
2004 LAND CRUISER (EWD548U)
411
[A]: System Title
[B]: Indicates the wiring color.
Wire colors are indicated by an alphabetical code.
B = Black W = White BR = Brown
L = Blue V = Violet SB = Sky Blue
R = Red G = Green LG = Light Green
P = Pink Y = Yellow GR = Gray
O = Orange
The first letter indicates the basic wire color and the
second letter indicates the color of the stripe.
Example: L - Y
L
(Blue)Y
(Yellow)
[C]: The position of the parts is the same as shown in
the wiring diagram and wire routing.
[D]: Indicates the pin number of the connector.
The numbering system is different for female
and male connectors.
Example :
Numbered in order
from upper left to
lower rightNumbered in order
from upper right to
lower left
Female Male
The numbering system for the overall wiring diagram is
the same as above
[E]: Indicates a Relay Block. No shading is used and
only the Relay Block No. is shown to distinguish
it from the J/B.
Example : Indicates Relay Block No.1
[F]: Junction Block (The number in the circle is the J/B No.
and the connector code is shown beside it).
Junction Blocks are shaded to clearly separate them
from other parts.
3C indicates that
it is inside
Junction Block
No.3
Example:
[G]: Indicates related system.
[H]: Indicates the wiring harness and wiring harness
connector. The wiring harness with male
terminal is shown with arrows (
).
Outside numerals are pin numbers.
Female Male ( )
[I]: ( ) is used to indicate different wiring and
connector, etc. when the vehicle model, engine type,
or specification is different.
[J]: Indicates a shielded cable.
[K]: Indicates and located on ground point.
[L]: The same code occuring on the next page indicates
that the wire harness is continuous.

SYSTEM INDEX
M OVERALL ELECTRICAL WIRING DIAGRAM
2004 LAND CRUISER (EWD548U)
412
SYSTEMS LOCATION SYSTEMS LOCATION
Air Conditioning (Front) 31-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Conditioning (Rear) 31-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Auto Antenna 28-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic Glare-Resistant EC Mirror with Compass 15-3. . . . . . . . . . .
Back-Up Light 10-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Center Differential Lock 14-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Charging 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cigarette Lighter 21-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Combination Meter 30-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cruise Control 5-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electronically Controlled Transmission and A/T Indicator 5-6. . . . . . . . . .
Engine Control 4-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Immobiliser System 4-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Wiper and Washer 18-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Garage Door Opener 15-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Horn 18-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Illumination 9-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mirror Heater 11-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Moon Roof 17-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Multi-Display (w/o Navigation System) 29-3. . . . . . . . . . . . . . . . . . . . . . .
Multiplex Communication System 1-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
* Automatic Light Control
* Door Lock Control
* Front Fog Light
* Headlight
* Interior Light
* Key Reminder* Light Auto Turn Off
* Power Window
* Theft Deterrent
* Wireless Door Lock Control
Navigation System 26-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Outlet 20-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Rear Quarter Window 11-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Seat 22-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Source 1~31-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Tilt and Power Telescopic 23-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Radio and Player (w/ Navigation System) 26-5. . . . . . . . . . . . . . . . . . . . .
Radio and Player (w/o Navigation System) 27-3. . . . . . . . . . . . . . . . . . . .
Rear Window Defogger 11-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Wiper and Washer 19-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Control Mirror 16-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Seat Belt Warning 25-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Seat Heater 21-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shift Lock 24-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SRS 13-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stop Light 10-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Taillight 8-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TOYOTA Parking Assist (Rear View Monitor) 26-12. . . . . . . . . . . . . . . . .
Trailer Towing 7-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Turn Signal and Hazard Warning Light 6-2. . . . . . . . . . . . . . . . . . . . . . . . . .
VSC 12-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2004 LAND CRUISER (EWD548U)
93 SYSTEM CIRCUITS H
2004 LAND CRUISER
ELECTRICAL WIRING DIAGRAM
SYSTEM CIRCUITS
Page
Air Conditioning (Front) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
356
Air Conditioning (Rear) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 366
Auto Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322
Automatic Glare-Resistant EC Mirror with Compass . . . . . . . . . . . . . . . . . . . 304
Automatic Light Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
Back-Up Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Center Differential Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Cigarette Lighter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
Combination Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Door Lock Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
Electronically Controlled Transmission and A/T Indicator . . . . . . . . . . . . . . . 212
Engine Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Engine Immobiliser System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Front Fog Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Front Wiper and Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Garage Door Opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
Headlight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
Ignition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Illumination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Interior Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Key Reminder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 316
Light Auto Turn Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Mirror Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314
Moon Roof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
Multi-Display (w/o Navigation System) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348
Multiplex Communication System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Multiplex Communication System (Communication Bus) . . . . . . . . . . . . . . . 168
Navigation System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336
Power Outlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Power Rear Quarter Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306
Power Seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294
Power Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Power Tilt and Power Telescopic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298
Power Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250
Radio and Player (w/ Navigation System) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324
Radio and Player (w/o Navigation System) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330
Rear Window Defogger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 312
Rear Wiper and Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Remote Control Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302
Seat Belt Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320
Seat Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308
Shift Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
SRS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Stop Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Taillight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Theft Deterrent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282
TOYOTA Parking Assist (Rear View Monitor) . . . . . . . . . . . . . . . . . . . . . . . . . . . 336
Trailer Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Turn Signal and Hazard Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
VSC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
Wireless Door Lock Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270

V08423 Knock Sensor 1
GRECM
KNK
E1 12
E6
WIRING DIAGRAM
Wiring Diagram
This shows a wiring diagram of the circuit.
Use this diagram together with ELECTRICAL
WIRING DIAGRAM to thoroughly understand the
circuit.
Wire colors are indicated by an alphabetical code.
B = Black, L = Blue, R = Red, BR = Brown,
LG = Light Green, V = Violet, G = Green,
O = Orange, W = White, GR = Gray, P = Pink,
Y = Yellow, SB = Sky Blue
The first letter indicates the basic wire color and
the second letter indicates the color of the stripe.
DTC P0325Knock Sensor 1 Circuit Malfunction
CIRCUIT DESCRIPTION
Knock sensor is fitted to the cylinder block to detect engine knocking. This sensor contains a piezoelectric element which
generates a voltage when it becomes deformed, which occurs when the cylinder block vibrates due to knocking. If engine
knocking occurs, ignition timing is retarded to suppress it.
DTC No. DTC Detecting Condition Trouble Area
P0325No knock sensor 1 signal to ECM with engine speed,
1,200 rpm or more.
Open or short in knock sensor1 circuit

Knock sensor 1 (looseness)

ECM
If the ECM detects the above diagnosis conditions, it operates the fall safe function in which the corrective retard angle
value is set to the maximum value.

Diagnostic Trouble Code No. and Detection Item

Circuit Description
The major role and operation, etc. of the circuit
and its component parts are explained.

Indicates the diagnostic trouble code, diagnostic
trouble code set parameter and suspect area of
the problem.

IN-34
- INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS
34 Author
: Date
:
2004 LAND CRUISER (RM1071U)
6. CIRCUIT INSPECTION
How to read and use each page is shown below.