2001 TOYOTA HIGHLANDER relay

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

2005 HIGHLANDER (EWD592U)
126
Front Fog Light
20A
FR FOG10A
TAI L
52 31
EG A1 2E15
EA A1 21B 71J2
A 6D9
OFF
ON
Low
High
Flash
Fog
Light
SW Dimmer
SW
10 17 1611
IAC13
J 1 J 3L
R- W
V R- W R- W W- B
W- B
W- B
FFGO BECU FOG LIGHT
Relay
F 2 F 1R- W
OFF
Tail
Head
Light
Control
SW
13B 17 B 10
LG BR
A 5
IG7. 5A
ECU- B 7. 5A
IG1
1K 10 2A4
IC3 5
1G 10
1H 6
W- L BR G
3A 10
3B 5
BR GR
FFOG HEAD Fr om Power Source System (
See Page 62)B 9(
A)
, B10(
B)
, B12(
D)
Body ECU
Combination SW Front Fog Light
LHFront Fog Light
RH
Junction
Connector Junction
Connector

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)
128
Taillight
23 15
10A
TAI L TAI LL IGHT
Relay
1J 41B4 1A 11B 11 1H4
A 7
B 18TRL Y
TAI L
SB
OFF
Tail
Head14
V
16
IA
140A ALT
2
1
F 7 W
IA1 8
W
E E
BR
6 4
EG A
EA AF 3
F 4
E
BR
6 4
W- B
W- B
W- B
W- B W- B
2 1R15
W- B1 2R14
W- B
E
B
B
B W- B
BC
W- B
2 1BG2 2E
BR W
BE A
W- BB
C13
FL MAI N
3. 0W
BatteryBR J 1
J 3
J14BR BR
L 1 J13
Light
Control SW
G
G
B 9E
J12B
W- B
W- B
B 9(
A)
, B10(
B)
Tail TailBody ECU
Combination SW
Front Parking Light LH
Front Parking Light RH Fusible Link Block
Junction
Connector
Junction
Connector
Junction
ConnectorJunction Connector
Junction
Connector
License Plate
Light
Rear Side Marker Light LH
Rear Side Marker Light RH
Rear Combination Light RH R 8 Rear Combination Light LH R 72 21 1

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)
142
Illumination
23 15
7. 5A PANEL
1J 4 1A 1
A 7
B 18
OFF
Tail
Head
Light
Control SW
IA3A 12 3A11
2 1
3A 7
L G
13J
21 15
3D 7
V Y
83G
1 2
3G 1
R W
TAI LL IGHT
Relay
SB B
TRL Y
TAI L
W
V140A ALT
2
1
F 7
Battery14
16
W- B
OA22
A10
C10
* 1 : 6 Speaker
* 2 : 8 Speaker FL MAI N
3. 0W13F
2 1
3E 8
L GR
M 2
3J 2
IR1 7
9 10
R26
A
A
BF
W- B
BB
W- B
B V W- B
C13A
J19
(
*4) (
*4)
* 3 : w/ Navigation System
* 4 : w/o Navigation System 1D 6
IL2 5101
W- R W L GR
6
B
GMD
R23
C16
(
*5) (
*5) (
*5) (
*5) (
*5)
* 5 : w/ Rear Heater System
* 6 : w/o Rear Heater System 1K 7
(
*2) (
*2)(
*2) B 9(
A)
, B10(
B)
A/C Control Assembly Ashtray Illumination Body ECU
Cigarette Lighter Illumination
Combination SW
Combination SWFusible Link Block
Junction
Connector
Main SW
Radio and Player
Rear Heater Blower SW

2005 HIGHLANDER (EWD592U)
145
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
A1042E442R3B43
A2242F738 (3MZ-FE)R443
B9A42F740 (2AZ-FE)R2343
B10B42G443R2443
C1042J1944R2645
C1142M243S343
C1342M343S443
C1642R2A43T1643
: 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)
1D29Cowl 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
3D30
3E
3FInstrument Panel Wire and Center J/B (Behind the Instrument Panel Center)3GInstrument Panel Wire and Center J/B (Behind the Instrument Panel Center)
3H
3I31
3J
3K
4D33Cowl Wire and Passenger Side J/B (Right Side of Grove Box)4H33Cowl 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)
IK354Engine Room Main Wire and Cowl Wire (Right Cowl Side Panel)
IL254Instrument Panel Wire and Cowl Wire (Upper Side of Passenger Side J/B)
IR154Instrument Panel Wire and Floor Wire (Under the Shift Lever)
: GROUND POINTS
CodeSee PageGround Points Location
IA52Left Cowl Side Panel
IB52Right Instrument Panel Brace
BB56Right Center Pillar
BF56Near the Rear Side Marker Light RH
: SPLICE POINTS
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
I254Instrument Panel Wire
Service Hints

2005 HIGHLANDER (EWD592U)
146
Automatic Light Control
40A
MAIN
12
C13
Di mmer SWLight
Control SWFlashHighLow HeadTail OFF13 814
16 Auto
IAB 16 B 17 B 18 B 15 3
IK3 4
C 37. 5A
RAD
NO. 2
1J 6
A 21 A 20 A 12 52134 31
A 173C 63A 8
W B RL-R
G
W
R
7. 5A
IG1
1K 10
A 53B 53A 10
GR BR
7. 5A
ECU- B
2A 4
D 91H 61G 10
W- L G
C 11
1IC3 5
BR
A23
D 7
LG
P V OB B
W- BDRL NO. 2
Relay
HRLY ACC IG BECU CLTB CLTE CLTSCLTB CLTE CLTS
A HEAD TAIL HF DCTY2
3 3
3
R- B
2G 4
E10
R- B
R- B
A 7
TRLY
SB
1
1A 1
B
2
1
F 7 Battery
FL MAIN
3. 0W
W140A ALT
2I 1
W W
TAILLIGHT
Relay
51
32
1J 4
3
B
IA1 9From Power Source System (
See Page 62)
B 9(
A)
, B10(
B)
, B11(
C)
, B12(
D)Automatic Light Control Sensor
Body ECU
Combi nati on SW
Door Courtesy SW
Front LH
Fusible Link Block