TOYOTA LAND CRUISER 1998 Factory Repair Manual

2004 LAND CRUISER (EWD548U)
214Electronically Controlled Transmission and A/T Indicator
SLT+ SLT- SR S2 S1
W
B
SB
GR
G
8EB2 8B 11
R R
15EB2 9B 10
W W
7EB2 7B 15
G G
6EB2 6B 12
G- B G- B
14EB2 3B 13
G- W G- W
E 18
3P 14
3M 6
D 2312
3P 13
3M 2
D 81
6C 20
6C 19
D 106D 276
6C 16
6C 17
D 96D 30 3P 12
3M 13P 10
3M 33
8 4 7 5 2 1LL 2L DL NL RL PL
6D 28
6C 18
D 20 6D 17
6C 1
E 7 6D 34
6C 13
D 11 6D 13
6C 4
E 6If1 1
R- B R- B
R- L
EB2 10B 27
1EB2 5B 35
2B 26
1B 34
2
L
W
R
GL
W
T1 7 V 3 E 5(
A)
, E 6(
B)
, E 7(
C)
, E 8(
D)
, E 9(
E)
G- Y
G- B G- B G- Y G- YR- L G- R G- R
R- L
G- Y
G- B
10 A48W- B
G- Y
G
G- B G- R G- W G- W
R- B
G- R
G
G- B W- B
S1 S2 SR SLT- SLT+DP 1
4LP 2RN3RBR- L
AT4 ATL NSSD NSSL E
NT+ NT- SP2+ SP2-
Electr onically Controlled Tr ansmission SolenoidEngine Control ModulePark/Neutral Position SW
Vehicle Speed Sensor
(
Electronically Controlled
Tr ansmission) Shift Lock Control ECU
Turbine Speed Sensor

2004 LAND CRUISER (EWD548U)
215
4
E 22 E23 E28 E26 29 E E27 23 16 5A14 10A
GAUGE2
3E 3
Ib2 6
14 IN2
E10 R- LEB1 11
D 46C 156D 31
1 2E 9
EB1 3
R- L R- L
From Power Source System
(
See Page 94)
E 15
IF 2D 22 22 4E
4D 84C 11 10 3M
3P 183P
2E 18 D 1C11
38 6D
6D 39
8 EB1
2 1
ECA 6
E10 E10W- BC 7 A 7C4C1
D 6
E 5(
A)
, E 6(
B)
, E 7(
C)
, E 8(
D)
, E 9(
E)VPA1 VPA2 EP1 EP2VCP1 VCP2
R
R- B
BR- W
L- R
W- R
W
VPA VPA2 EPA VCPA EPA2 VCP2
R- L
R- L
B- LR- L
R- L R- L
R- L
B- L B- L
B- L
L4
D 5 W- B
W- B W- B
W- B
W- B
Y- G Y- G
W- B
W- B
W- B
W- B
BR W- B
W- B
W- B
Y- G
W- BBR EOM HP TFN E01 E02 E03 ME01 E1
W- B
W- B W- BW- B
R- L
Accel Position Sensor
Detection SW
(
Transfer L Position)
Detection SW
(
Transfer Neutral
Position)
Engine Control Module
EB1 5
Y- G
If1 10

2004 LAND CRUISER (EWD548U)
216Electronically Controlled Transmission and A/T Indicator
5D 28 D
2nd PWR
3 5217 D D29 D18 E 5(
A)
, E 6(
B)
, E 7(
C)
, E 8(
D)
, E 9(
E)
A/T P
P
R
10A
GAUGE1
2Q 657. 5A
MET
3Q 7 10A
ECU- B2From Power Source System (
See Page 94)
3Q 44
D 12 D11 A10 J14
D 20 D19
IU1 9
4F 3 2Q 66
2E 24 4C12 4A10 4C3
19 39 11 44E 64E4
A45
R- L G 4
V C12(
A)
, C15(
D) A
A
W- B
W- B W- B
R- L
L- W
L- R
V
B
P- B W- B
E 4
SB
PWR SNWI MPX1MPX2 SPD
SB B
B
P- B B
P- B
P- B
B B P- B
(
*1)
(
*1)
(
*1)
(
*1) (
*1) (
*1)
MPD1 MPD2 MPX+ MPX-
SB SBSB
SB W- B
R- L
Combination Meter
Electronically Controlled
Transmission Pattern Select SW
Engine Control Module
Gat ewa y ECU A/C Control Assembly Junction
Connector

2004 LAND CRUISER (EWD548U)
217
N
D
4
3
2
L
2nd STRT
A/T
OI L TEMPECT PWR
Speedometer
Tachometer
R- L
VD 15 D1D16
32B IX1 68IX1
10 EB1 EB19
R- G
BR
SB BR2Q 70
2E 28B
BR
SB SB V
1V 2
R- G SB
J14 C12(
A)
, C15(
D)* 1 : w/ Navigation System
Combination Meter
Vehicle Speed Sensor
(
Combination Meter)
Junction
Connector
EC
BR
BR

2004 LAND CRUISER (EWD548U)
218Electronically Controlled Transmission and A/T Indicator
Previous automatic transmissions have selected each gear shift using mechanically controlled throttle hydraulic pressure,
governor hydraulic pressure and lock-up hydraulic pressure. The electronically controlled transmission, however, electrically
controls the line pressure, throttle pressure, lock-up pressure and accumulator pressure etc. through the solenoid valve. The
electronically controlled transmission is a system which precisely controls gear shift timing and lock-up timing in response to
the vehicle's driving conditions and the engine condition detected by various sensors. It makes smooth driving possible by
shift selection for each gear which is the most appropriate to the driving conditions at that time, and by preventing downing,
squat and gear shift shock when starting off.
1. Gear Shift Operation
When driving, the engine warm up condition is input as a signal to TERMINAL THW of the engine control module from the
engine coolant temp. sensor and the vehicle speed signal from vehicle speed sensor is input to TERMINAL SP2+ of the
engine control module. At the same time, the throttle valve opening signal from the throttle position sensor is input to
TERMINALS VTA1 and VTA2 of the engine control module as throttle angle signal.
Based on these signals, the engine control module selects the best shift position for the driving conditions and sends current
to the electronically controlled transmission solenoid.
2. Line Hydraulic Pressure Control
The engine control module adjusts the line hydraulic pressure to the optimal level by controlling TERMINAL SLT+ of the
module according to the engine torque data. This realizes the smooth gear shifting.
3. High Response Gear Shifting Control
The engine control module performs the high response engine torque up control to control the ignition-timing lag as well as
opening the electronic throttle when shifting down. By doing this, the gear shifting is performed in a short period of time.
Moreover, the engine control module uses the orifice switching control, which optimizes the speed of applying and reducing
the hydraulic pressure. And it realizes the fine shifting condition by applying and reducing hydraulic pressure slowly when
the gear shifting shock is important and quickly when the high response is required.
4. Clutch Hydraulic Pressure Control
The engine control module controls the clutch operation in the optimal timing and with the best hydraulic pressure according
to the engine torque data and the number of the clutch revolution
5. Lock-Up and Flexible Lock-Up Control
The engine control module carries out the lock-up control by controlling the TERMINAL SLU+ of the module according to
the shift position, vehicle speed, throttle opening degree and running conditions. The engine control module also steadily
keeps applying the lock-up clutch a delicate slippage to improve the transmission efficiency (Fuel efficiency) of the torque
converter.
6. Stop Light SW Circuit
If the brake pedal is depressed (Stop light SW on) when driving in lock-up condition, a signal is input to TERMINAL STP of
the engine control module. The engine control module operates and cuts the current to the solenoid to release lock-up.
7. Ai-Shift Control
The engine control module judges whether the road is downslope or upslope by detecting the throttle opening degree or the
vehicle's speed. Moreover it can expect the winding roads by detecting the turning condition of the vehicle. The engine
control module keeps unnecessary shifting up from the fourth gear from operating and carries out the automatic shifting
down to the third gear in order to control the vehicle running according to the road conditions. The engine control module
also reads the driver's intention during driving from his (her) accelerating operation and the running conditions of the vehicle.
As a result of that, ideal shifting patters for each driver are automatically selected without any switching operations.
8. Electronically Controlled Transmission Pattern Select SW Circuit
When the electronically controlled transmission pattern select SW is switched to PWR, a signal is input to TERMINAL PWR
of the engine control module. This enables shift-up and shift-down at a higher speed range.
9. Transfer Shift Operation
When the transfer shift lever is moved to L position, a signal is input into TERMINAL L4 of the engine control module.
In addition when the transfer shift lever is moved to N position a signal is input to engine control module TERMINAL TFN.
The engine control module detects the transfer condition through this.
System Outline

2004 LAND CRUISER (EWD548U)
219
E4 Electronically Controlled Transmission Pattern Select SW
5-3 : Closed with select SW at PWR position
2-3 : Closed with select SW at 2nd position
E7 (C), E9 (E) Engine Control Module
BATT-E1 : Always 9.0-14.0 volts
+B-E1 : 9.0-14.0 volts with ignition SW at ON or ST position
+B2-E1 : 9.0-14.0 volts with ignition SW at ON or ST position
IGSW-E1 : 9.0-14.0 volts with ignition SW at ON or ST position
P1 Park/Neutral Position SW
3-1 : Closed with shift lever in P position
3-2 : Closed with shift lever in R position
3-5 : Closed with shift lever in N position
3-7 : Closed with shift lever in D position
3-4 : Closed with shift lever in 2 position
3-8 : Closed with shift lever in L position
: Parts Location
CodeSee PageCodeSee PageCodeSee Page
A1470E168J1471
A4570E268P169
A4870E470S571
C12A70E5A70T1669
C15D70E6B70T1769
D168E7C70V269
D568E8D70V369
D668E9E70
D770G470
:Relay Blocks
CodeSee PageRelay Blocks (Relay Block Location)
122Engine Room R/B (Engine Compartment Left)
Service Hints

2004 LAND CRUISER (EWD548U)
220Electronically Controlled Transmission and A/T Indicator
: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)
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)
3E40
3M43Dash Wire and Cowl Side J/B RH (Right Kick Panel)
3P43(g )
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
5C56Dash Wire and J/B No.5 (Behind the Combination Meter)
5D56Engine Room No.2 Wire and J/B No.5 (Behind the Combination Meter)
6C60Dash Wire and J/B No.6 (Behind the Grove Box)
6D60Engine Wire and J/B No.6 (Behind the Grove Box)
7B64Dash Wire and J/B No.7 (Behind the Grove Box)
7D64Engine Room No.2 Wire and J/B No.7 (Behind the Grove Box)
:Connector Joining Wire Harness and Wire Harness
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
EB1
EB276Engine Wire and Transmission Wire (On the Transmission)
EB3
g()
IG178Engine 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)
IX182Instrument 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)
: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
:Splice Points
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
E876Transmission WireE1076Engine Wire
E976Transmission Wire

2004 LAND CRUISER (EWD548U)
221 Memo

2004 LAND CRUISER (EWD548U)
222Cruise Control
E 8 25C5D 15
1BATT
1EFI OR ECD
Relay 11
1 2From Power Source System (
See Page 94)
1B 44
1A 43 1B39
EA EE 45
2A 5
2D 34
W- B
2D 36E 1E2 25A
EFI OR ECD
NO. 1
1B 11 1B3
E 3IG1 1
Id1 5
B- R B- R B- RB- WB- RB- YB- W
MREL
B- Y B- W W- B
W- B
B- Y B- Y
B- Y B- Y
+B +B2
Y- B Y- B Y- B
1Id3 2IG1
6D
+BM
B- YA 18
VCA 21
VTA1A 31
VTA2C 3
M+C 2
M-C 17
GE01A 28
E2 If1 4If1 3 10A
ETCS
1B 2
536421
R
W
BR- W BR- WY- B R- Y L- R L- R
T1 6
VC VTA VTA2 M+ M- E2
VCP2 EPA2 VCPA EPA VPA2 VPA
W W- RL- R BR- WR- BR
27 E E 29 26 E 28 E 23 E 22 E E 5(
A)
, E 6(
B)
, E 7(
C)
, E 8(
D)
, E 9(
E)
VPA1 VPA2 EP1 VCP1 EP2 VCP2 523614
A14
(
Shielded)
Accel Position Sensor Engine Contr ol ModuleThrottle Control Motor and Sensor

2004 LAND CRUISER (EWD548U)
223
1 2
4 3
E 5(
A)
, E 6(
B)
, E 7(
C)
, E 8(
D)
, E 9(
E)4D 12
4E 217D 4
7B 3
P- B
E 207B 513
4D 18
4E 177B 8
7B 6
V- W
E 187 11
P- B
P- B
V- W P- B
V- W
D 1
SIL TC TC
SIL TCD 7
3M 4
3M 5
D 19
G- W
STP15A
STOP
2D 31
2E
35 2D 26 4E
94C 13 4E15
14 4E94D7. 5A
IGN From Power Source System (
See Page 94)
3E 8
D 12
ST1-
S 5
E 9
IGSW
R- G R- G
B- R B- RB- R G- WG- R
G- R
G- W
G- W
CANCEL- SET + RES ON - OFF 5 D 24CCS
Id3 4
II3 294
IH2 5
E10
ECC 1E1
C18
L L
L
SB BR BR
BR
BRA 7E01
A 6E02
C 7E03
C 4ME01
E10 E10
W- B
W- B
W- B
W- B
W- B
W- B
IX2 5
Combi nati on SWData Link
Connector 1Data Link Connector 3
Engi ne Control Module
Stop Light SW
E 15EOM
IF 2D 224E 22
4D 84C 11D 1HP
W- B
W- B W- B
W- B
Cruise Control SW