TOYOTA HIGHLANDER 2001 Service Repair Manual

2005 HIGHLANDER (EWD592U)
272
Audio System with 8 Speaker
AUO- AUO+ AUI+ AUI- 7. 5A
RAD
NO. 2
1H 1
IO1 14
A A
A 2
ACC1K 325A
RAD
NO. 1
2CC 1C11 BACC
J18
N 3
G G
L- B
GR Y
V
L- Y
V B
G
LG
R
IK3 20
L- B
11 2 1 10
* 1 : w/ Rear Seat Entertainment System
* 2 : w/ Navigation System AG
(
*1)1 ANT+
13 C
B
A21O
G
(
*1)
* 3 : w/o Navigation System12 IN1 7IN16 IL1 1IL110 B 1B8
G
B Y
R LG
L
F11 FR+ FR-
12
Y
B
T12
34IR1 1IR111
LG
L
12 IB1 7IB16 IF3 10 IF320 B 2B9
G
B P
G P
V
F10 FL+ FL-
12
R
W
T11
34IR1 10 IR120
Y
R- Y
(
*2)
(
*2)
(
*2)
(
*2)(
*3) (
*3)
4E 2
4D 8 4E 3
IA1 6
1
V
W V
4
IL1 2
LG
3K 10
3C 43C5
IR2 1
R- Y R- Y A26
3I 9
3A 13
B 7
+B From Power Source System (
See Page 62)
S22(
A)
, S23(
B)R 4(
C)
, R22(
A)
, R23(
B)
Antenna Amplifier
(
Front) Antenna Amplifier
(
Rear)
Front Door Speaker LHFront Door Speaker RH
Junction
Connector
Navigation ECURadio and Player
Stereo Power Amplifier
Twee ter
LHTweeter
RH

2005 HIGHLANDER (EWD592U)
273
BC1 5BC110 B 3RR+
B 10RR-
BH1 1BH110 B 4RL+
B 11RL-C 7MUTE
IR2 5
A 12
MUTE C 8FR+
4IR2
A 6
F. RC 18RR+
12 IR2
A 14
R. RC 9FL +
3IR2
A 5
F. LC 19RL+
13 IR2
A 13
R. LC 16S. GND
15 IR2
BB1 5 BB110B 12GND
BF BBA
J19
BRW
G
B
RW
G
B
R
BR R
WR
G
GR L R
LG
W- B Y W
W- B
W- B A 11
SGND G
(
*1)G
(
*1)
GND
20 C
BR
IB
BR
12
R1012
R 9
W- B
A C 17BEEP
14 IR2
A 4
BEEP
L (
Shielded)(
Shielded)
L
C 10SLD
16 IR2
1AIR2 6AMP+
C 3
AMP+
V P
YY
W- B A R 4(
C)
, R22(
A)
, R23(
B)
S22(
A)
, S23(
B)
Junction
Connector Radio and Player
Rear Door Speaker LH Rear Door Speaker RHSter eo Power Amplifier

2005 HIGHLANDER (EWD592U)
274
Audio System with 8 Speaker
13 IP1 12 IP1 2IP1
W- BA 29GND SELD
CC 7
W- B W- B
C
W- B W- B
G
(
*1) G
(
*1)
19SG3
R
G (
Shielded)(
Shielded)
R
G
A
NTSCNTS1
21 A
SGD1 SGN1
20 A
SG
BRSB LGP (
Shielded) (
Shielded)
G R WB
IP1 18SLD1
14 B
R- L- 23 AIP1 17RSL-
18 B
R- L+ 24 AIP1 16RSL+
17 B
R- R- 25 AIP1 15RSR-
16 B
R- R+ 26 AIP1 14RSR+
15 B
A 27
SG2
(
*1)
(
*1)
(
*1)
(
*1) (
*1) (
*1) (
*1) (
*1)
M 4(
A)
, M 5(
B) IL1 4 IL1 35IL1SW1
7BSW2
8B GMD
6B
R
LG GR L
B GR
11 12 10
C16AU2 EAU AU1
AU1 EAU AU2
VOLUME- VOLUME+SEEK-MODE SEEK+
BR
W
GR
C W- B
(
*1)
(
*1) (
*1)
(
*1)
(
*1) (
*1)
R 4(
C)
, R22(
A)
, R23(
B)
R29(
A)
, R30(
B)
, R31(
C)
Combination SW
Multi- Display Radio and Player
Rear Seat Entertainment ECU
Junction
Connector J18 B 4B1B5 A 18TX3-
A 17TX3 +
TX-A 14
TX+A 13
(
*1)(
*1) Y O
IP1 11
(
*1)(
*1) BR LG
IP1 1
(
*4) O (
*4) LG
A 10TX-
A 9TX+
(
*4) O (
*4) LG

2005 HIGHLANDER (EWD592U)
275
17 BK1 19 BK1 18 BK1 20 BK1 21 BK1 22 BK1 15 BK1 4 BK1 5 BK1 6 BK1 2 BK1 1 BK1 G
(
*1)
P W- BGRV
O W- BGRG
TX+ TX2+
5B
GND GN D1
6B
ACC ACC2
2B
+B +B2
1B B4TX2-
TX-C 1MUTE
MUTE
V
VLG
L
Y R WG (
Shielded) (
Shielded)
Y R WG
VG2
18 B
VR VR2
17 B
B B2
15 B
G G2
14 B
R R2
13 B
VG 17 18
* 1 : w/ Rear Seat Entertainment System20 21 22
B B
SYNCSYN2
16 B
19 1265415SG1 11 A A 2R+
4IP1
A 10
R+A 3R-
5IP1
A 9
R-A 4L+
6IP1
A 8
L+A 5L-
7IP1
A 7
L-8IP1
B
W
R
G (
Shielded)(
Shielded)
B
W
R
G
Y O
LGL
MUTE
6A TX1-
10 B
(
TX+) 31 AIP1 9TX1+
9B
RMUT 28 AIP1 3RMU
19 B(
*1) G
(
*1)
(
*1)
(
*1)
(
*1)(
*1)
(
*1)
(
*1)
(
*1)
(
*1)
(
*1) (
*1) (
*1)
R28
PL
V GR
LMUT 12 AIP1 20
(
TX-) 30 AIP1 19
(
*1)
(
*1) (
*1) (
*1)
R 4(
C)
, R22(
A)
, R23(
B)
R29(
A)
, R30(
B)
, R31(
C) Radio and Player
Rear Seat Entertainment Display Rear Seat Entertainment ECU
* 4 : w/o Rear Seat Entertainment System

2005 HIGHLANDER (EWD592U)
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Audio System with 8 Speaker
ACC 32 A
G
(
*1)
G WRB (
Shielded) (
Shielded)
P LG SB BR
SLD1
20 C
HPL- HPL-
16 C
HPL+ HPL+
17 C
HPR- HPR-
18 C
HPR+ HPR+
19 C
SLD 30 29 28 27 26 (
*1) G
R28
G (
Shielded) (
Shielded)
Y
SG5
7B
HP1L HP1L
8B
GND9 8
R BR
HP1R HP1R
9B
7
Y (
Shielded) (
Shielded)
P
SG6
19 B
HP2R HP2R
21 B
GND1 25 23
BR L
HP2L HP2L
20 B
24 BK1 8 BK17 BK19 BK123 BK124 BK125 BK126 BK127 BK128 BK129 BK130 R29(
A)
, R30(
B)
, R31(
C)
Rear Seat Entertainment Display Rear Seat Entertainment ECU

2005 HIGHLANDER (EWD592U)
277
J17
Y
(
*1)
+B1 16 AIO2 217. 5A
CRT
2
IK2 16
V
(
*1) V
(
*1) V
(
*1)
AUXL
B 11
(
AUXL)AUXR
B 12
(
AUXR)SGND
B 10
(
SG7)SGND
B 23
(
SGN5)
BR
Y
R (
Shielded)
(
Shielded)
NTSC
B 24
(
NTS4)SLD
B 22
(
SG6) 7 5 6 3 1 2
G
V13
R (
Shielded) (
Shielded)
BR
SG9
10 C
S. GNDSGN2
9C
SG 16 31
G Y
NTSCNTS2
8C
32
G WRB (
Shielded) (
Shielded)
G WRB
SG4
6C
AL- AL-
2C
AR- AR-
4C
AL+ AL+
3C
AR+ AR+
5C
SGND 10 14 12 13 11
R28 * 1 : w/ Rear Seat Entertainment System1
2
SB
8
GAUX 3BCE
A
BK1 31 BK132 BK116 BK111 BK113 BK112 BK114 BK110A
R29(
A)
, R30(
B)
, R31(
C)Fr om Power Source System (
See Page 62)
Junction
Connector
Rear Seat Entertainment Display Rear Seat Entertainment ECU Video Terminal

2005 HIGHLANDER (EWD592U)
278
Audio System with 8 Speaker
R4 (C) Radio and Player
(C) 1-Ground : Always approx. 12 volts
(C)11-Ground : Approx. 12 volts with ignition SW at ON or ACC position
(C)20-Ground : Always continuity
S22 (A), S23 (B) Stereo Component Amplifier
(B) 7-Ground : Always approx. 12 volts
(A) 2-Ground : Approx. 12 volts with ignition SW at ON or ACC position
(B)12-Ground : Always continuity
R29 (A), R30 (B), R31 (C) Rear Seat Entertainment ECU
(A)32-Ground : Approx. 12 volts with ignition SW at ON or ACC position
(A)16-Ground : Always approx. 12 volts
(A) 29, (C) 7-Ground : Always continuity
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
A2142M543R30B45
A2644N343R31C45
C1642R4C43S22A45
F1044R945S23B45
F1144R1045T1145
J1743R22A43T1245
J1844R23B43V1345
J1944R2845
M443R29A45
: 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)
1H29Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
1K28Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)
2C27Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
3A303C30
Instrument Panel Wire and Center J/B (Behind the Instrument Panel Center)3I31
Instrument Panel Wire and Center J/B (Behind the Instrument Panel Center)
3K31
4D33Cowl Wire and Passenger Side J/B (Right Side of Grove Box)4E33Cowl Wire and Passenger Side J/B (Right Side of Grove Box)
Service Hints

2005 HIGHLANDER (EWD592U)
279
: 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)
IB152Front Door LH Wire and Cowl Wire (Left Kick Panel)
IF352Instrument Panel Wire and Cowl Wire (Right Side of Instrument Panel J/B)
IK254Engine Room Main Wire and Cowl Wire (Right Cowl Side Panel)IK354Engine Room Main Wire and Cowl Wire (Right Cowl Side Panel)
IL154Instrument Panel Wire and Cowl Wire (Upper Side of Passenger Side J/B)
IN154Front Door RH Wire and Cowl Wire (Right Kick Panel)
IO154Cowl Wire and Floor Wire (Right Kick Panel)IO254Cowl Wire and Floor Wire (Right Kick Panel)
IP154Instrument Panel Wire and Floor Wire (Left Side of Passenger Side J/B)
IR154Instrument Panel Wire and Floor Wire (Under the Shift Lever)IR254Instrument Panel Wire and Floor Wire (Under the Shift Lever)
BB156Rear Door No.1 LH Wire and Floor No.2 Wire (Left Center Pillar)
BC156Rear Door No.1 RH Wire and Floor Wire (Right Center Pillar)
BH156Floor No.2 Wire and Floor Wire (Near the Rear Side Marker Light RH)
BK156Roof No.2 Wire and Floor Wire (Right Rear Quarter Panel)
: GROUND POINTS
CodeSee PageGround Points Location
IB52Right Instrument Panel Brace
BB56Right Center Pillar
BF56Near the Rear Side Marker Light RH

2005 HIGHLANDER (EWD592U)
280
Audio System with 6 Speaker
7. 5A
RAD
NO. 2
1K 325A
RAD
NO. 1
2C 4
3A 13
3I 9
B 3B4IL1 2IK3 20
IBB 7
12 IB1 7IB16 IF3 10 IF320 B 2B6
P
V BR
P
G P
V
F1012 IN1 7IN16 IL1 1IL110 B 1B5
LG
L Y
R LG
L
F1112 BB1 5 BB110 IR1 10 IR120 A 2A6
B
Y R
W
R 912 BC1 5BC110 IR1 1IR111 A 1A3
R
W LG
L R
W
R10
V
L- Y GR
LG L- B
BH1 1BH110
Y
R- Y L
Y
ACC+B BU+B
GND FL+ FL- FR+ FR- RL+ RL- RR+ RR-
12 12
R
W
Y
B
T11 T12
34 34 1H 1
4E 34E 2
IA1 6
Y V V
1
A26From Power Source System (
See Page 62)
R 2(
A)
, R 3(
B)
Antenna Amplifier
(
Rear)
Front Door Speaker LH Front Door Speaker RHRadio and Player
Rear Door Speaker
LHRear Door Speaker
RH
Tweeter
LHTweeter
RH

2005 HIGHLANDER (EWD592U)
281
R3 (B) Radio and Player
(B) 4-Ground : Always approx. 12 volts
(B) 3-Ground : Approx. 12 volts with the ignition SW at ACC or ON position
(B) 7-Ground : Always continuity
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
A2644R2A43R1045
F1044R3B43T1145
F1144R945T1245
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1H29Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
1K28Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)
2C27Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
3A30Instrument Panel Wire and Center J/B (Behind the Instrument Panel Center)3I31Instrument Panel Wire and Center J/B (Behind the Instrument Panel Center)
4E33Cowl 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)
IA152Cowl Wire and Floor No.2 Wire (Left Kick Panel)
IB152Front Door LH Wire and Cowl Wire (Left Kick 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)
IL154Instrument Panel Wire and Cowl Wire (Upper Side of Passenger Side J/B)
IN154Front Door RH Wire and Cowl Wire (Right Kick Panel)
IR154Instrument Panel Wire and Floor Wire (Under the Shift Lever)
BB156Rear Door No.1 LH Wire and Floor No.2 Wire (Left Center Pillar)
BC156Rear Door No.1 RH Wire and Floor Wire (Right Center Pillar)
BH156Floor No.2 Wire and Floor Wire (Near the Rear Side Marker Light RH)
: GROUND POINTS
CodeSee PageGround Points Location
IB52Right Instrument Panel Brace
Service Hints