TOYOTA HIGHLANDER 2001 Service Repair Manual

2005 HIGHLANDER (EWD592U)
226
Key Reminder and Seat Belt Warning
B 2
D D
1 2
4G 9
4L 74N1
IC
W- B G G
C 11
BB
W- B
W- B
7. 5A
RAD
NO. 2
1J 6
3A 8
3C 6
A 17
BW
7. 5A
IG1
1K 10
3A 10
3B 5
A 5
BR GR
7. 5A
ECU- B
2A 4
W- L
IC3 51G10
1H 6
D 9
G
ACC IG BECU
DCTY KSW
BR
1
D 7
K 4J 6
B 6
IB2 1
8MPX1
4F 7
4A 5
SB GR
P 5
W
MPX2
YO
IF3 5A 10MPX2
MPX2 MPX1 * 1 : w/ Navigation System
* 2 : w/o Navigation System
BR BR
BR R
W
IB2 8
7
V
MPX1
SB
B 22 B24
FSR- FSR+C
W
B
1C2
A 19 A2(
*3)
A 11 A6(
*4) LBE+ LBE-
3 1
G
R
B19 * 3 : w/ Curtain Shield Airbag
* 4 : w/o Curtain Shield Air bag
R
B W
IA1 9A 2A1 B 2B1
C 3C10(
*3)
(
*4) 1K 1LG
LG
From Power Source System (
See Page 62)
B 9(
A)
, B10(
B)
, B11(
C)
, B12(
D)
S30(
A)
, S31(
B) A16(
A)
, A17(
B)
, A18(
C)
Airbag Sensor
Assembly
Body ECU
Buckle SW LH
Door Courtesy SW
Front LH
Junction
Connector Unlock Warning SW
Power Window Master SW
with ECU
Short
Connector

2005 HIGHLANDER (EWD592U)
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IL2 12
R
Y
B 2A 9
MPX+MPX-3E 1
3J 12
G
V(
*1) W
G(
*2) 4
11MPD1
MPD2
G 5
G(
*1)
G(
*2)FSR+ FSR-A
B
W
B 8 4A8
B 12
12 SVC2 SIG2
SVC2 SIG2
W
L
B
3 2SGD2
SGD2
O
O 9 R
BL1 4BL11 W
B
1 2
B17A 5 A 9BSW BGND
L
GR
LG
W LG
Y
O 6(
A)
, O 7(
B)
Passenger' s
Seat Belt
A10(
A)
, A11(
B)
A/C Control Assembly
Buckle SW
(
Front Passenger ' s Side)
Gateway ECU
Occupant Classification ECU
Occupant Classification
Sensor Front RH

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Key Reminder and Seat Belt Warning
IL2 1
BuzzerGR
MPX2 MPX1
W
18
29
E 6
7V
SB
BR
10A
HEATER
1K 13
3A 4
3C 7
B PLG
3F 9
3D 3
V
23K 12 3BA 11
R
1
5V A 2A 12A B 9 A 21
IB IL2 11
LG
10A
DOME
2A 3
4D 114H 6IK3 12
R V V Y
Driver' s
Seat Belt W LG
YFrom Power Source System (
See Page 62)
C11(
A)
, C12(
B)
Combination Meter
Engine Control
Module

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1. Seat Belt Warning System
When the ignition SW is turned to the ON position, the signal is input to the body ECU. At this time, to judge whether or not
the driver fastens the seat belt, the signal from the buckle SW LH is input to TERMINAL (A) 10 of the body ECU via multiplex
commnunication system (Bean bus). If the driver does not fasten the seat belt, the seat belt warning light in the combination
meter flashes and the alarm buzzer goes on, in response to the communication control of the body ECU etc.
Additionally, the sensor (Inside of buckle SW (Front passenger's side) ) installed on the front passenger seat detects the
passenger and determines whether or not the passenger fastens the seat belt.
If the passenger does not fasten the seat belt, the front passenger seat belt warning light is flashed.
2. Key Reminder System
If the driver door is opened with the ignition SW set at the ACC or OFF position and the ignition key remained inserted into
the key cylinder (The unlock warning SW is on), the signal from the unlock warning SW is input to TERMINAL (B) 2 of the
body ECU and the signal from the door courtesy SW LH is input to TERMINAL (C) 11 of body ECU. As a result, through
communication control of the body ECU etc. the buzzer in the combination meter goes on to warn the driver that the ignition
key is still inserted.
B19 Buckle SW LH
1-4 : Closed with the driver's seat belt in use
D7 Door Courtesy SW Front LH
1-Ground : Closed with the LH door open
K4 Unlock Warning SW
2-1 : Closed with the ignition key in the cylinder
B17 Buckle SW (Front Passenger's Side)
1-4 : Closed with the front passenger's seat belt in use
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
A10A42B1747 (w/o Power Seat)O6A46 (w/ Power Seat)
A11B42B1946 (w/ Power Seat)O6A47 (w/o Power Seat)
A16A42B1947 (w/o Power Seat)O7B46 (w/ Power Seat)
A17B42C11A42O7B47 (w/o Power Seat)
A18C42C12B42O946 (w/ Power Seat)
B9A42D744O947 (w/o Power Seat)
B10B42E642P544
B11C42G543S30A43
B12D42J643S31B43
B1746 (w/ Power Seat)K443
System Outline
Service Hints

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Key Reminder and Seat Belt Warning
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1G29Cowl Wire and Instrument Panel J/B (Lower Finish Panel)1H29Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
1J28Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)1K28Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)
2A27Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
3A
3B
3C303D30
Instrument Panel Wire and Center J/B (Behind the Instrument Panel Center)3EInstrument Panel Wire and Center J/B (Behind the Instrument Panel Center)
3F
3J313K31
4A
4D
4F33
4GCowl Wire and Passenger Side J/B (Right Side of Grove Box)
4H
g(g )
4L324N32
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
IA152Cowl Wire and Floor No.2 Wire (Left Kick Panel)
IB252Front Door LH Wire and Cowl Wire (Left Kick Panel)
IC352Engine Room Main Wire and Cowl Wire (Left Cowl Side Panel)
IF352Instrument Panel Wire and Cowl Wire (Right Side of Instrument Panel J/B)
IK354Engine Room Main Wire and Cowl Wire (Right Cowl Side Panel)
IL254Instrument Panel Wire and Cowl Wire (Upper Side of Passenger Side J/B)
BL158Floor Wire and Front Seat RH Wire (Under the Front Passenger's Seat)
: GROUND POINTS
CodeSee PageGround Points Location
IB52Right Instrument Panel Brace
IC52Right Cowl Side Panel

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MEMO

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Shift Lock
1J 61K91E1
3 4Shift Lock
Control SW
Shift Lock
Solenoid
3 42 5 1
P1
P
P2
SLS-
SLS+
IC7. 5A
RAD
NO. 210A
ECU- IG20A
STOP
ACC IG STP
KLS+E
P
W- B W- B W- BV
W
SBR W
K 4S 54L 3 3A 8
3K 5
IF1 3
B
3F 133D 91 2
BY
1IF3
L
4N 3
IB
W- B
S15
3A 1
3K 4
4G 8
4L 7From Power Source System (
See Page 62)
Key Interlock
SolenoidShift Lock ECUStop Light SW

2005 HIGHLANDER (EWD592U)
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When the ignition SW is turned to ACC position, the current from the RAD NO.2 fuse flows to TERMINAL 1 of the shift lock
ECU. When the ignition SW is turned to ON position, the current from the ECU-IG fuse flows to TERMINAL 5 of the ECU.
1. Shift Lock Mechanism
With the ignition SW on, when a signal that the brake pedal is depressed (Stop light SW on) and a signal that the shift lever
is put in P position (Continuity between P1 and P of the shift lock control SW) is input to the ECU, the ECU activates and the
current flows from TERMINAL 5 of the ECU to TERMINAL SLS+ of the shift lock solenoid to solenoid to TERMINAL SLS- to
TERMINAL 3 of the ECU to GROUND. This causes the shift lock solenoid to turn on (Lock plate disengages) and the shift
lever can be shifted into other position than the P position
2. Key Inter Lock Mechanism
With the ignition SW ON or ACC position, when the shift lever is put in P position (No continuity between P2 and P of shift
lock control SW), the current flowing from TERMINAL 4 of the ECU to the key interlock solenoid is cut off. This causes the
key interlock solenoid to turn off (Lock plate disengages from LOCK position) and the ignition key can be turned from ACC to
LOCK position.
S5 Shift Lock ECU
1-Ground : Approx. 12 volts with the ignition SW at ACC or ON position
5-Ground : Approx. 12 volts with the ignition SW at ON position
3-Ground : Always continuity
2-Ground : Approx. 12 volts with the stop light SW on (Brake pedal depressed)
S15 Stop Light SW
2-1 : Closed with the brake pedal depressed
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
K443S543S1543
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1E29Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
1J28Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)1K28Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)
3A
3D30Instrument Panel Wire and Center J/B (Behind the Instrument Panel Center)3FInstrument Panel Wire and Center J/B (Behind the Instrument Panel Center)
3K31
4G33
4L32Cowl Wire and Passenger Side J/B (Right Side of Grove Box)
4N32g(g )
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
IF152Instrument Panel Wire and Cowl Wire (Right Side of Instrument Panel J/B)IF352Instrument Panel Wire and Cowl Wire (Right Side of Instrument Panel J/B)
: GROUND POINTS
CodeSee PageGround Points Location
IB52Right Instrument Panel Brace
IC52Right Cowl Side Panel
System Outline
Service Hints

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Power Seat for Driver's Seat
1G 11
30A
POWER
1A 11 2
140A ALT
2
1
F 7B WO
IA1 20
R LG Front
Rear
Up
96105
Down
Front
32
Rear
Up
78
Down
1
4
1 2
Y LL
P21
1 2
G BB
P25
2 1
BR PP
P20
2 1
W VV
P26
BatteryW- BLG
P15
FL MAIN
3. 0WO
B BBB A C
LG
M M M MB
E
LDWN LUP RCLR RCLF FDWN FUP SLDR SLDFJ21(
A)
, J22(
B)
Fusible Li nk Block
Junction
Connector
Power Seat Control SW
(
Driver' s Seat Control)
Power Seat Motor
(
Driver' s Seat Reclining
Control) Power Seat Motor
(
Dr iver' s Seat Slide
Control)
Power Seat Motor
(
Dr iver' s Seat Front
Tilt Control)
Power Seat Motor
(
Dr iver' s Seat Lifter
Control)

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Rear Front
14 23
LG W- B
BA2 1
Y WW
P18
P16
W- BLG
W- B
A AB ABA B A5 W- B
M J21(
A)
, J22(
B)
Junction
ConnectorPower Seat Control SW
(
Driver ' s Seat Lumbar Support Control)
Power Seat Motor
(
Driver' s Seat Lumbar
Suppor t Control)