engine TOYOTA HIGHLANDER 2001 Service Repair Manual

2005 HIGHLANDER (EWD592U)
120
Headlight with Daytime Running Light
1. Daytime Running Light Operation
The headlight is turned on when all the following conditions are satisfied
*When the ignition switch is ON position
*When the generator is generating electricity
*When the light control SW is OFF position
*When the parking brake SW is OFF position
2. Headlight Operation
*The headlight comes on at the LOW position when the dimmer SW is turned to the low beam position with the light control
SW being HEAD position.
*If the dimmer SW is turned to the HIGH position with the light control SW being HEAD position, the headlight comes on at
the high beam position. Moreover, the high beam indicator light appears on the combination meter.
*Regardless of the light control SW positions, the headlight comes on at the low beam position when the dimmer SW is
turned to FLASH position. Moreover, the high beam indicator light appears on the combination meter.
B9 (A), B10 (B), B12 (D) Body ECU
(D) 7-Ground : Always continuity
(D)14-Ground : Continuity with parking brake pedal depressed
(B)17-Ground : Continuity with the light control SW at HEAD position
(A) 2-Ground : Always continuity
(A) 5-Ground : Approx. 12 volts with the ignition SW at ON position
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
B9A42H138 (3MZ-FE)H440 (2AZ-FE)
B10B42H140 (2AZ-FE)J139 (3MZ-FE)
B11C42H238 (3MZ-FE)J141 (2AZ-FE)
B12D42H240 (2AZ-FE)J339 (3MZ-FE)
C11A42H338 (3MZ-FE)J341 (2AZ-FE)
C12B42H340 (2AZ-FE)M343
C1342H438 (3MZ-FE)P343
: RELAY BLOCKS
CodeSee PageRelay Blocks (Relay Block Location)
222Engine Room R/B (Engine Compartment Left)
323Engine Room R/B No.3 (Engine Compartment Rear Left)
System Outline
Service Hints

2005 HIGHLANDER (EWD592U)
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: 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)
2A
2B27Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)2F27Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
2G
3A
3B30Instrument Panel Wire and Center J/B (Behind the Instrument Panel Center)3C30Instrument Panel Wire and Center J/B (Behind the Instrument Panel Center)
3F
4A
4F33
4HCowl Wire and Passenger Side J/B (Right Side of Grove Box)4LCowl Wire and Passenger Side J/B (Right Side of Grove Box)
4M32
4N
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
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)
: 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)
EG48 (3MZ-FE)Under the Left HeadlightEG50 (2AZ-FE)Under the Left Headlight
IA52Left Cowl Side Panel
IB52Right Instrument Panel Brace
IC52Right Cowl Side Panel
: SPLICE POINTS
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
E448 (3MZ-FE)E1148 (3MZ-FE)E450 (2AZ-FE)Engine Room Main Wire
E1150 (2AZ-FE)Engine Room Main Wire
E1048 (3MZ-FE)Engine Room Main Wire
E1248 (3MZ-FE)Engine Room Main Wire
E1050 (2AZ-FE)E1250 (2AZ-FE)

2005 HIGHLANDER (EWD592U)
124
Headlight without Daytime Running Light
HEAD LAMP Relay
1-2 : Closed with the light control SW at HEAD position or dimmer SW at FLASH position
C13 Combination SW
13-16 : Closed with the light control SW at HEAD position
8-16 : Closed with the dimmer SW at FLASH position
7-16 : Closed with the dimmer SW at HIGH or FLASH position
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
B9A42C1342H340 (2AZ-FE)
B10B42H138 (3MZ-FE)H438 (3MZ-FE)
B11C42H140 (2AZ-FE)H440 (2AZ-FE)
B12D42H238 (3MZ-FE)J339 (3MZ-FE)
C11A42H240 (2AZ-FE)J341 (2AZ-FE)
C12B42H338 (3MZ-FE)
: RELAY BLOCKS
CodeSee PageRelay Blocks (Relay Block Location)
222Engine Room R/B (Engine Compartment Left)
: 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)
2A
2B27Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)2F27Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
2G
3A
3B30Instrument Panel Wire and Center J/B (Behind the Instrument Panel Center)
3C
()
4A334F33
Cowl Wire and Passenger Side J/B (Right Side of Grove Box)4I32
Cowl Wire and Passenger Side J/B (Right Side of Grove Box)
4N32
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
IC252Engine Room Main Wire and Cowl Wire (Left Cowl Side 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)
: GROUND POINTS
CodeSee PageGround Points Location
EA48 (3MZ-FE)Right Front Fender ApronEA50 (2AZ-FE)Right Front Fender Apron
IA52Left Cowl Side Panel
Service Hints

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: SPLICE POINTS
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
E448 (3MZ-FE)Engine Room Main WireI354Cowl WireE450 (2AZ-FE)Engine Room Main Wire

2005 HIGHLANDER (EWD592U)
127
FOG LIGHT Relay
3-5 : Closed with the light control SW at HEAD position, dimmer SW at LOW position and fog light SW on
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
B9A42F138 (3MZ-FE)J139 (3MZ-FE)
B10B42F140 (2AZ-FE)J141 (2AZ-FE)
B12D42F238 (3MZ-FE)J339 (3MZ-FE)
C1342F240 (2AZ-FE)J341 (2AZ-FE)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1B29Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel)
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)
3A30Instrument Panel Wire and Center J/B (Behind the Instrument Panel Center)3B30Instrument Panel Wire and Center J/B (Behind the Instrument Panel Center)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
IC352Engine Room Main Wire and Cowl Wire (Left Cowl Side Panel)
: GROUND POINTS
CodeSee PageGround Points Location
EA48 (3MZ-FE)Right Front Fender ApronEA50 (2AZ-FE)Right Front Fender Apron
EG48 (3MZ-FE)Under the Left HeadlightEG50 (2AZ-FE)Under the Left Headlight
IA52Left Cowl Side Panel
: SPLICE POINTS
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
E1548 (3MZ-FE)Engine Room Main WireE1550 (2AZ-FE)Engine Room Main Wire
Service Hints

2005 HIGHLANDER (EWD592U)
129
TAILLIGHT Relay
5-3 : Closed with the light control SW at TAIL or HEAD position
C13 Combination SW
14-16 : Closed with the light control SW at TAIL or HEAD position
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
B9A42F738 (3MZ-FE)J1344
B10B42F740 (2AZ-FE)J1444
C1342J139 (3MZ-FE)L144
F338 (3MZ-FE)J141 (2AZ-FE)R745F340 (2AZ-FE)J339 (3MZ-FE)R845
F438 (3MZ-FE)J341 (2AZ-FE)R1445F440 (2AZ-FE)J1244R1545
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1A29Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel)1B29Engine Room Main 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)
: 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)
BG256Back Door No.1 Wire and Floor No.2 Wire (Rear Left of the Roof)
: GROUND POINTS
CodeSee PageGround Points Location
EA48 (3MZ-FE)Right Front Fender ApronEA50 (2AZ-FE)Right Front Fender Apron
EG48 (3MZ-FE)Under the Left HeadlightEG50 (2AZ-FE)Under the Left Headlight
IA52Left Cowl Side Panel
BC56Left Side of Rear Cross Member
BE56Left Side of Back Door
: SPLICE POINTS
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
B956Floor No.2 Wire
Service Hints

2005 HIGHLANDER (EWD592U)
131
T8 Turn Signal Flasher
4-Ground : Always approx. 12 volts
7-Ground : Always continuity
1-Ground : Approx. 12 volts with the ignition SW at ON position
5-Ground : Continuity with the ignition SW at ON position and the turn signal SW at LEFT position
6-Ground : Continuity with the ignition SW at ON position and the turn signal SW at RIGHT position
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
A1042F438 (3MZ-FE)J1244
B942F440 (2AZ-FE)J2043
C1142J139 (3MZ-FE)M343
C1342J141 (2AZ-FE)R745
F338 (3MZ-FE)J339 (3MZ-FE)R845F340 (2AZ-FE)J341 (2AZ-FE)T843
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1D29Cowl Wire and Instrument Panel J/B (Lower Finish Panel)1E29Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
2B27Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
3B
3E30
3FInstrument Panel Wire and Center J/B (Behind the Instrument Panel Center)
3G31
()
3K31
4A
4C
4D33Cowl Wire and Passenger Side J/B (Right Side of Grove Box)4ECowl Wire and Passenger Side J/B (Right Side of Grove Box)
4G
4M32
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
IA252Cowl Wire and Floor No.2 Wire (Left Kick Panel)
IC252Engine Room Main Wire and Cowl Wire (Left Cowl Side Panel)IC352Engine Room Main Wire and Cowl Wire (Left Cowl Side Panel)
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)
IK254Engine 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)
: GROUND POINTS
CodeSee PageGround Points Location
EA48 (3MZ-FE)Right Front Fender ApronEA50 (2AZ-FE)Right Front Fender Apron
EG48 (3MZ-FE)Under the Left HeadlightEG50 (2AZ-FE)Under the Left Headlight
IA52Left Cowl Side Panel
IB52Right Instrument Panel Brace
BC56Left Side of Rear Cross Member
Service Hints

2005 HIGHLANDER (EWD592U)
135
P1 Back-Up Light SW
2-1 : Closed with the shift lever in R position
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
J1244P141 (2AZ-FE)R845
P139 (3MZ-FE)R745
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1G29Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
4A33Cowl Wire and Passenger Side J/B (Right Side of Grove Box)4I32Cowl Wire and Passenger Side J/B (Right Side of Grove Box)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
IA252Cowl Wire and Floor No.2 Wire (Left Kick Panel)
IM154Engine Wire and Cowl Wire (Right Kick Panel)
: GROUND POINTS
CodeSee PageGround Points Location
BC56Left Side of Rear Cross Member
Service Hints

2005 HIGHLANDER (EWD592U)
136
Interior Light
10A
DOME
2A 3
IK3 12
4H 6
4J 14D13 4D12
BE A1 2B 6 21
OFF
ON DOOR
IA1 15
R V B O
BG3 3
W- B R R
2 1
W B
IE1 1
B 1
2 1
IC 4L 74N1 4D 5IE1 8B 1
B 1
W- B W- B W- B W- B
W- B
W W W- B
1D 141E 4
IA2 1
112
21
OFF
ON DOOR V10
V 9 O 5
I16
6 2
T 71 2I14
B 1 B 1
IE1 5
4F 24J 5 4H 1
B W W
W
Y
B YY
W(
*2)
(
*1)
(
*1)
W
Y
(
*2) D 4
R11
R W- B
G
G GW- B
W- B
W- B
R
BR
BR
RW- B
* 1 : w/ Engine Immobilizer System
* 2 : w/o Engine Immobilizer System
(
*1)
(
*2)
GN D CTY+B1
B 1
R
7
R
3
R12 J14
W- B
W
3 4D 11
V
IL2 11LG LG LG* 3 : w/ Navigation System
* 4 : w/o Navigation System
4M 6
W- B
4H 11
W- B
W- B
From Power Source System (
See Page 62)
Ignition Key
Cylinder
IlluminationDiode
(
Rear Interior Light)
Ignition Key Cylinder
Illumination Interior Light Junction
Connector
Overhead J/B Rear Interior Light Rear Interi or
Light SW
Tr ansponder Key Amplifier Vani ty Light LH Vani ty Light RH

2005 HIGHLANDER (EWD592U)
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Interior Light
20A
P FR
DOOR
1K 625A
D FR
DOOR
1D 127. 5A
RA D
NO. 2
1J 67. 5A
IG1
1K 10 7. 5A
ECU- B
2A 4
C 19 D12 A17 A5 D 91H 61G 10
3B 53A 10
3C 63A 8 IC3 5IL18
IB1 3IN13
2 1
2 1
IB2 10 IN210
Y V G O L
G O Y
D 11
1 IA1 4IO217
1B B
11 BG3 4C 6C11 D16 D15
D10 D 9 D 8 D 7
J1 3BR
B
BRGBR
W
GRW- L
D 5
D 6
ACC IG BECU
G
B
SB BR
LG W W
GB
VGR R
ILE BCTY DCTY PCTY RCTY
BH1 6 W B PCYL DCYL
IA1 14 IA1 9 1K 1
LG
6B
W
MPX1
E 6MPX1
18MPX2 29
GR
IL2 1
SB
A 10
O
MPX2
R BRO SB LG
GN D1
W- B
7D A2
W- B
GND2
W- B3B 3
3F 13
W- B
W- B
From Power Source System (
See Page 62)
B 9(
A)
, B10(
B)
, B11(
C)
, B12(
D)
Body ECU
Door Courtesy Light
Front LH
Door Courtesy Light
Front RH Door Courtesy SW
Fro nt LH
Door Courtesy SW
Fro nt RH
Door Courtesy SW
Rear LH
Door Courtesy SW
Rear RHEngine Control Module
Ju nctio n
Connector