2001 TOYOTA HIGHLANDER warning

2005 HIGHLANDER (EWD592U)
186
VSC and Tire Pressure Warning System
: 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)
IC2
IC352Engine Room Main Wire and Cowl Wire (Left Cowl Side Panel)
IC4
g()
IF252Instrument 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)
IK354Engine Room Main Wire and Cowl Wire (Right Cowl Side Panel)
IL154Instrument Panel Wire and Cowl Wire (Upper Side of Passenger Side J/B)IL254Instrument Panel Wire and Cowl Wire (Upper Side of Passenger Side J/B)
IO254Cowl Wire and Floor Wire (Right Kick Panel)
: GROUND POINTS
CodeSee PageGround Points Location
EA48 (3MZ-FE)EA50 (2AZ-FE)Right Front Fender Apron
EB48 (3MZ-FE)Right Front Fender Apron
EB50 (2AZ-FE)
EH48 (3MZ-FE)Under the Left HeadlightEH50 (2AZ-FE)Under the Left Headlight
IB52Right Instrument Panel Brace
IC52Right Cowl Side Panel
BB56Right Center Pillar
BF56Near the Rear Side Marker Light RH

2005 HIGHLANDER (EWD592U)
196
Door Lock Control
B
G
G
V
VD 17LSWA
A A
BH1 17
BC1 11BH1 8
BC1 6
G SBV
B- WL- B
1 2AA
BG3 8 BG2 1 BG2 3
BE A4 1 2
V GR
B GV
W- B
3
J14 B15 B
IC 4L 74H 11 4G 9D 7GND1
D DB 2KSW
1 2
G G W- B
W- B W- BJ 6 K 4
MM
D15IA1 4
BG3 4
GR R
1 2C 6BCTY
G
R12
A
G W- B
L ULS
E ACT+ ACT- IA13
B BB 9(
A)
, B10(
B)
, B11(
C)
, B12(
D)
Body ECU
Back Door Lock Motor
Back Door Unlock
Detection SW Door Lock Motor Rear RH
Door Unlock Detection SW
Rear RH
Junction
Connector
Junction
Connector
Unlock Warning SW Rear Interior Light SW
BH1 15
BC1 7
B BR GR
4
BB BC1 133
W- B W- B
LSSR
EJunction
Connector J12

2005 HIGHLANDER (EWD592U)
203
4H 11 4G 9D 7GND1
D DB 2KSW
1 2
G G W- B
W- BJ 6 K 4
32A10A
DOME
IK3 12
4H 6
4D 9
BF IK3 14
3IK3
4M 3
4N 1
IC 74L2 1C 15
R V L- Y W W- B W- B W- B
W- B
W- B
A
W 5
BZR C 16 C17
RDA PRGIO2 14 IO215
GR
YSB
BR
1 3 25B
IO2 10
W- B
+B RDA PRG E* 4 : w/ Engine Immobilizer System
* 5 : w/o Engine Immobilizer System
ILE
D 11
BR
4D 13 4D12
IE1 1
WB
21
OFF
ON DOOR
5IE1
R G
4H 1
4F 24J 5
BR
2
61 2
I16
T 7
I14 GY
Y G(
*4)
(
*5) (
*5) (
*4)
W 6
R D D
J18 B
B 1
W
B 1
R
+B1
112
7
4D 5
4M 6
1E 4
1D 14
IA
W- B W- B
W R W- B
GND CTYO 5
J19
W- B
A A W- B W- BW- B
IE18B 13
W- B
W- B
W- B
B 9(
A)
, B10(
B)
, B11(
C)
, B12(
D)From Power Source System (
See Page 62)
Ignition Key
Cylinder
Illumination
Body ECU
Ignition Key Cylinder
Illumination Interior LightJunction
Connector
Junction
Connector
Junction
Connector
Unlock Warning SW
Overhead J/B
Transponder Key Amplifier Wireless Door Lock Buzzer
Wireless Door Lock ECU

2005 HIGHLANDER (EWD592U)
204
Wireless Door Lock Control
In this system, the wireless door lock ECU receivers weak radio wave transmitted from the transmitter and outputs a signal
to the body ECU. Accordingly, all the doors are can be locked and unlocked by remote control.
1. Normal Operation
*Lock operation
When the lock SW on the transmitter is pressed, all the doors are locked.
*Unlock operation
When the unlock SW on the transmitter is pressed once, only the driver door is unlocked. When the unlock SW is pressed
again within 3 seconds, all the doors are unlocked.
2. Auto Lock Function
After all the doors are unlocked by pushing the UNLOCK SW of the transmitter, unless each of the doors is opened or the
ignition key is inserted, all the doors are locked again.
3. Wireless Door Lock Stop Function
If any of the following conditions are detected, the wireless door lock does not function.
Lock operation
*When any door is open (Door courtesy SW on)
*The ignition key is inserted into the ignition SW (Unlock warning SW on)
*Ignition SW is on
Unlock operation
*Ignition SW is on
4. Visual Confirmation of Lock or Unlock
When doors are locked by using the transmitter, the hazard light flashes once. When doors are unlocked by using the
transmitter, the hazard light flashes twice. If UNLOCK SW of the transmitter is pushed while all the doors are locked, doors
are unlocked and the interior light and ignition key cylinder light are turned on simultaneously.
5. Panic Mode Function
When the panic SW on the transmitter is pressed, the panic mode is activated. The panic mode is canceled when the unlock
SW or panic SW is pressed.
6. Repeat Function
If the lock detection signal in response to the output signal is not received after the wireless door lock ECU has output the
lock signal, the lock signal is output again.
System Outline

2005 HIGHLANDER (EWD592U)
208
Theft Deterrent System
IF1 2IC3 4
WL
15A
SECURITY
2A 5
L
3
+B2IL2 18
P
12
KSW D D
GG
2 1
1 2
IL2 6IK3 15
G W
34
DSWH
G- B
10A
ECU- IG
1K 9
3A 1
3E 5
R G
10
IG IL2 17
Y SB
15
L BG3 9
V
IA2 14
BR
IL2 8
LG BR
33
UL BG2 4
B
IA2 4
Y
BE A
W- B
EG A
W- B
4G 9
4N 1
W- B W- B
4L 7
IC
W- B
3J 11
W- B
2 3
Y
11
O
IOUT
IF3 17
IC3 2
V LG B B- O
13C 8
3B 2
R B
31MPX1
1SH-
25IND
1 2
3F 11
W- B
3D 5
3F 13
W- B W- B
29E
W- B
IB J1 4
T 5 T 1
E 3
K 4 J 6
W- B W- B
2+B1
I11
1
O
IL1 11
PV
P T 4 1 23
BR
Y
B14 W- B
IOUT S+B
GND
O 4O
J 1Battery
B
B 140A ALT
2
1
F 7
W
FL MAI N
3. 0WFrom Power Source System (
See Page 62)
Back Door Key Lock and
Unlock SW
Engine Hood
Courtesy SW Fusible Link Block
Junction
ConnectorJunction
Connector
Ju nctio n
Connector
Unlock Warning SW
Option Connector 2
Theft Deterrent Horn
Theft Deterr ent ECU
Theft Deter rent
Indicator Light

2005 HIGHLANDER (EWD592U)
211
E D 11
ILE
BR
B
G
G
V
VD 17LSWA
A A
BH1 17
BC1 11 BH1 8
BC1 6 BH1 15
BC1 7
B
G BR
SB
V GR
B- W
L- B
412 AA
V
BB BC1 133
W- B W- B
BG3 8BG21BG23
BE A 412
V
G
RGB
V W- B
3B15 J12
B
IC 4L 74H 11 4G 9D 7GND1
D DB 2KSW
1 2
G G W- B
W- B W- BJ 6 K 4
MM
D1510A
HORN
32 51
D 10IC2 42B 6
HORN
W- R P
HORN
Relay40A
MAIN
2G 4
C 3
R
5 R- B
HRLY 2
EACT- ACT+ LSSR SLUL
L- R
3 3
1 3
2
3
IK3 4DRL NO. 2
Relay E10
4J 5
4F 26 2
4H 6
4D 1210A
DOME
2A 3
12 IK3
G
Y
C 6BCTY
G
IA1 4
BG3 4
GR R
1 2
W- B
R12R
IA13
BB
4N 1
W- B
J14
A 23 14
2B 1HEAD
LAMP
Relay
R- B
(
*3)
R- B
(
*3) L- R
(
*4)
L- R
(
*4)(
*3)
(
*3)
* 3 : w/ Daytime Runni ng Light
* 4 : w/o Daytime Running LightFr om Power Source System (
See Page 62)
B 9(
A)
, B10(
B)
, B11(
C)
, B12(
D)
Igniti on Key
Cylinder
Illumination
Y
V
Body ECU
Back Door Lock Motor
Back Door Unlock
Detection SW Door Lock Motor Rear RH
Door Unlock Detection SW
Rear RH
Junction
Connector
Junction
Connector
Junction
Connector
Unlock Warning SW Rear Interior
Light SWTr ansponder Key
Amplifier T 7

2005 HIGHLANDER (EWD592U)
212
Theft Deterrent System
E3 Engine Hood Courtesy SW
1-2 : Closed with the engine hood open
T4 Theft Deterrent ECU
3-Ground : Always approx. 12 volts
10-Ground : Approx. 12 volts with the ignition SW at ON position
2-Ground : Always approx. 12 volts
29-Ground : Always continuity
K4 Unlock Warning SW
2-1 : Closed with the ignition key in the cylinder
D12 Door Key Lock and Unlock SW,Door Lock Motor and Door Unlock Detection SW Front LH
5-Ground : Approx. 12 volts with the door lock motor at lock operate
6-Ground : Approx. 12 volts with the door lock motor at unlock operate
4-2 : Closed with the door lock cylinder locked with key
3-2 : Closed with the door lock cylinder unlocked with key
D13 Door Key Lock and Unlock SW,Door Lock Motor and Door Unlock Detection SW Front RH
1-Ground : Approx. 12 volts with the door lock motor at lock operate
2-Ground : Approx. 12 volts with the door lock motor at unlock operate
3-5 : Closed with the door lock cylinder locked with key
4-5 : Closed with the door lock cylinder unlocked with key
D14 Door Lock Motor and Door Unlock Detection SW Rear LH
3-Ground : Approx. 12 volts with the door lock motor at lock operate
4-Ground : Approx. 12 volts with the door lock motor at unlock operate
D15 Door Lock Motor and Door Unlock Detection SW Rear RH
1-Ground : Approx. 12 volts with the door lock motor at lock operate
2-Ground : Approx. 12 volts with the door lock motor at unlock operate
B15 Back Door Lock Motor and Back Door Unlock Detection SW
1-Ground : Approx. 12 volts with the door lock motor at lock operate
2-Ground : Approx. 12 volts with the door lock motor at unlock operate
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
A10A42D1144J1344
A11B42D1244J1444
A1742D1344J1643
B9A42D1444J1743
B10B42D1544K443
B11C42E338 (3MZ-FE)O443
B12D42E642P544
B1444F738 (3MZ-FE)R1245
B1544F740 (2AZ-FE)S30A43
C11A42G543S31B43
C12B42J139 (3MZ-FE)T139 (3MZ-FE)
D342J141 (2AZ-FE)T443
D744J543T543
D844J643T743
D944J1044T843
D1044J1244
: RELAY BLOCKS
CodeSee PageRelay Blocks (Relay Block Location)
323Engine Room R/B No.3 (Engine Compartment Rear Left)
Service Hints

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