TOYOTA HIGHLANDER 2001 Service Repair Manual

F02192
12
(+) (-)
Skid Control Buzzer
G26280
Skid Control ECU
(harness side connector)
Skid Control Buzzer
(harness side connector)S27
BZIG1 V8
BZ
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
05-867
1057 Author
: Date
:
2 INSPECT SKID CONTROL BUZZER ASSY
(a) Disconnect the skid control buzzer connector.
(b) Apply a battery positive voltage to terminals 1 and 2 of the
skid control buzzer connector, and check that the buzzer
sounds.
OK:
The skid control buzzer sound should be heard.
NG REPLACE SKID CONTROL BUZZER ASSY
OK
3 CHECK HARNESS AND CONNECTOR(SKID CONTROL BUZZER - SKID
CONTROL ECU)
(a) Disconnect the skid control buzzer connector and the skid
control ECU connector.
(b) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester ConnectionSpecified Condition
S27-30 (BZ) - V8-1 (BZ)Below 1 W
(c) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester ConnectionSpecified Condition
S27-30 (BZ) - Body ground10 kW or higher
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
REPLACE ABS & TRACTION ACTUATOR ASSY (SEE PAGE 32-37)

F46302
1A
1C E5
E6IC4 S27
C11 E5 IC4 S27
E5 IC4
S27
E5 IC4 S27
E6 C12C11
1C1K 3A 3C1 5
678
9
13 1819
2122
23
24 25
2930 31
18
9
7
1
1
1 27 4
24 ECMSkid Control ECU with Actuator
Combination Meter
Instrument Panel J/B
Center J/B
F7
FL Block I15
Ignition SW
FL MAIN
Battery TRC-
ENG-
MPX
SystemSlip
HEATER
AM1 IG1
ALT AM1 TRC+
ENG+
MPX2TRC-
ENG- TRC+
ENG+
B G
R
V YY-B
G-B
W-G
W-L
P
G
WB MPX1
2 W
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
05-863
1053 Author
: Date
:
SLIP INDICATOR LIGHT CIRCUIT
CIRCUIT DESCRIPTION
The SLIP indicator blinks during TRAC & VSC operation.
WIRING DIAGRAM
05CDK-07

05-864
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
1054 Author
: Date
:
INSPECTION PROCEDURE
HINT:
Start the inspection from step 1 when using the hand-held tester and start from step 2 when not using the
hand-held tester.
1 PERFORM ACTIVE TEST BY HAND-HELD TESTER(SLIP INDICATOR LIGHT)
(a) Connect the hand-held tester to the DLC3.
(b) Start the engine.
(c) Select the item ºSLIP INDI LIGHTº in the ACTIVE TEST and operate the SLIP indicator light on the
hand-held tester.
ItemVehicle Condition / Test DetailsDiagnostic Note
SLIP INDI LIGHTTurns SLIP indicator light ON / OFFObserve combination me-
ter
(d) Check that ºONº and ºOFFº of the SLIP indicator light are indicated on the combination meter when
using the hand-held tester.
OK:
Turn the SLIP indicator light on or off in accordance with the hand-held tester.
NG Go to step 2
OK
REPLACE ABS & TRACTION ACTUATOR ASSY (SEE PAGE 32-37)
2 INSPECT MULTIPLEX COMMUNCATION SYSTEM (SEE PAGE 05-2040)
NG REPAIR MULTIPLEX COMMUNCATION
SYSTEM
OK

F45165F44428F45165F44428F45351
ENG-
ENG+ENG-ENG+
Skid Control ECU
(harness side connector)
ECM
TRC+
TRC-
TRC+
TRC-S27
E5
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
05-865
1055 Author
: Date
:
3 CHECK HARNESS AND CONNECTOR(ECM - SKID CONTROL ECU)
(a) Disconnect the skid control ECU connector S27 and ECM
connector E5.
(b) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester ConnectionSpecified Condition
S27-8 (TRC+) - E5-25 (TRC+)
S27-22 (TRC-) - E5-31 (TRC-)Below 1WS27-9 (ENG+) - E5-24 (ENG+)Below 1 W
S27-23 (ENG-) - E5-30 (ENG-)
(c) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester ConnectionSpecified Condition
S27-8 (TRC+) - Body ground
S27-22 (TRC-) - Body ground10 kWor higherS27-9 (ENG+) - Body ground10 kW or higher
S27-23 (ENG-) - Body ground
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
4 INSPECT COMBINATION METER ASSEMBLY(SLIP INDICATOR LIGHT)
(SEE PAGE 05-1868)
NG REPAIR OR REPLACE COMBINATION METER
ASSEMBLY
OK
REPLACE ABS & TRACTION ACTUATOR ASSY (SEE PAGE 32-37)

023H7-01
02-6
- PREPARATIONINTAKE
54 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
INTAKE
PREPARATION
Equipment
Hand-held vacuum pump
Ohmmeter
Torque wrench

0305T-04
03-2
- SERVICE SPECIFICATIONSSTANDARD BOLT
123 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
SPECIFIED TORQUE FOR STANDARD BOLTS
Specified torque
ClassDiameter
mm
Pitch
mmHexagon head boltHexagon flange boltClassmmmmN´mkgf´cmft´lbfN´mkgf´cmft´lbf
4T
6
8
10
12
14
161
1.25
1.25
1.25
1.5
1.55
12.5
26
47
74
11 555
130
260
480
760
1,15048 in.´lbf
9
19
35
55
836
14
29
53
84
-60
145
290
540
850
-52 in.´lbf
10
21
39
61
-
5T
6
8
10
12
14
161
1.25
1.25
1.25
1.5
1.56.5
15.5
32
59
91
14065
160
330
600
930
1,40056 in.´lbf
12
24
43
67
1017.5
17.5
36
65
100
-75
175
360
670
1,050
-65 in.´lbf
13
26
48
76
-
6T
6
8
10
12
14
161
1.25
1.25
1.25
1.5
1.58
19
39
71
11 0
17080
195
400
730
1,100
1,75069 in.´lbf
14
29
53
80
1279
21
44
80
125
-90
210
440
810
1,250
-78 in.´lbf
15
32
59
90
-
7T
6
8
10
12
14
161
1.25
1.25
1.25
1.5
1.510.5
25
52
95
145
23011 0
260
530
970
1,500
2,3008
19
38
70
108
16612
28
58
105
165
-120
290
590
1,050
1,700
-9
21
43
76
123
-
8T
8
10
121.25
1.25
1.2529
61
11 0300
620
1,10022
45
8033
68
120330
690
1,25024
50
90
9T
8
10
121.25
1.25
1.2534
70
125340
710
1,30025
51
9437
78
140380
790
1,45027
57
105
10T
8
10
121.25
1.25
1.2538
78
140390
800
1,45028
58
10542
88
155430
890
1,60031
64
11 6
11 T
8
10
121.25
1.25
1.2542
87
155430
890
1,60031
64
11 647
97
175480
990
1,80035
72
130

120E5-01
A88556
Carbon Filter
Charcoal Canister Filter
VSV for CCV ECM
Charcoal Canister Refueling Valve
Restrictor Passage Vapor Pressure Sensor
Fuel Tank
Purge Line
Fresh Air Line EVAP
Service Port Purge ValveAir Cleaner 12-16
- EMISSION CONTROLEMISSION CONTROL SYSTEM (3MZ-FE)
2474 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
SYSTEM DIAGRAM
The emission control system is determined by the ECM based on signals from various sensors.

2005 HIGHLANDER (EWD592U)
60
H SYSTEM CIRCUITS
2005 HIGHLANDER
ELECTRICAL WIRING DIAGRAM
SYSTEM CIRCUITS
Page
Air Conditioning (Automatic A/C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
298
Air Conditioning (Manual A/C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304
Audio System (6 Speaker) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280
Audio System (8 Speaker) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
Automatic Glare-Resistant EC Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
Automatic Light Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Back-Up Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Cigarette Lighter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
Combination Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282
Cruise Control (2AZ-FE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Cruise Control (3MZ-FE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
Door Lock Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
Electronically Controlled Transmission and A/T Indicator (2AZ-FE) . . . . . . 110
Electronically Controlled Transmission and A/T Indicator (3MZ-FE) . . . . . . 102
Engine Control (2AZ-FE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Engine Control (3MZ-FE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Engine Immobilizer System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Front Deicer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254
Front Fog Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Front Wiper and Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
Garage Door Opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250
Headlight (w/ Daytime Running Light) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Headlight (w/o Daytime Running Light) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242
Ignition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Illumination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Interior Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Key Reminder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Light Auto Turn Off System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Mirror Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254
Moon Roof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Multiplex Communication System (BEAN Bus) . . . . . . . . . . . . . . . . . . . . . . . . . 258
Multiplex Communication System (CAN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Navigation System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Power Outlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
Power Seat (Driver's Seat) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
Power Seat (Front Passenger's Seat) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Power Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Power Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
Radiator Fan and Condenser Fan (2AZ-FE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294
Radiator Fan and Condenser Fan (3MZ-FE) . . . . . . . . . . . . . . . . . . . . . . . . . . . 290
Rear Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 312
Rear Window Defogger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252
Rear Wiper and Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
Remote Control Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
Seat Belt Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226

2005 HIGHLANDER (EWD592U)
61
H
Page
Seat Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
256
Shift Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
SRS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Stop Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Taillight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Theft Deterrent System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
Tire Pressure Warning System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
Trailer Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
Turn Signal and Hazard Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
VSC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
Wireless Door Lock Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200

F46319
Skid Control ECU
with Actuator
Passenger Side J/BENG+ TRC-
TRC+
ENG-
CG D3
DLC3
W-BY-B
W-B TC TRC-
TRC+
ENG-
ENG+ ECM
E5
24Y G
V R
E531
E525
E5
3022
S27
8
23
9
4
4L1
4N
7 4C6
IC IC4
E5
20
TCIC4
IC4
IC4S27
S27
S27
OOJ16
J/C
DD
W-BG-B
W-G
W-L 19
7
18
5
13 05-868
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
1058 Author
: Date
:
TC AND CG TERMINAL CIRCUIT
CIRCUIT DESCRIPTION
Connecting terminals TC and CG of the DLC3 causes the ECU to display the DTC by flashing the ABS warn-
ing light.
WIRING DIAGRAM
05F1X-07