TOYOTA HIGHLANDER 2001 Service Repair Manual

I39966
05-1804
- DIAGNOSTICSNAVIGATION SYSTEM
1994 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
(c) Adjustment is completed when the steering angle setting
screen is displayed.
(d) Cancel the diagnostic mode (see page 05-1784).
HINT:

If the automatic adjustment is not performed (only step 1)
only upon replacing the multi-display, a beeping sound
can be heard for 3 seconds (while the initial screen is dis-
played) after turning the ignition switch to the ACC posi-
tion.

Perform the automatic adjustment again if a beeping
sound can be heard within 3 seconds.

- DIAGNOSTICSAUDIO SYSTEM
05-1681
1871 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
SOUND QUALITY IS BAD ONLY WHEN CD IS PLAYED (VOLUME IS
TOO LOW)
INSPECTION PROCEDURE
1 REPLACE CD WITH ANOTHER AND RECHECK
(a) Replace the CD with another one and recheck.
(1) Check the installation condition of the radio receiver assembly.
OK: Malfunction disappears.
NG REPLACE RADIO RECEIVER ASSY
(SEE PAGE 67-6)
OK
CD FAULTY
055LZ-10

N17398
HeadCapstan
Pinch Roller
05-1686
- DIAGNOSTICSAUDIO SYSTEM
1876 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
SOUND QUALITY IS BAD ONLY WHEN PLAYING TAPE
INSPECTION PROCEDURE
1 REPLACE CASSETTE TAPE WITH ANOTHER AND RECHECK
(a) Replace the cassette tape with another one and recheck.
(1) Replace the cassette tape with another normal one to see if the same trouble occurs again.
OK: Malfunction disappears.
OK CASSETTE TAPE FAULTY
NG
2 CHECK FOR ANY FOREIGN OBJECT
(a) Check for foreign objects.
(1) Check that no foreign objects or defects are detected in the cassette tape player.
OK: No foreign objects or defects are detected.
NG REMOVE FOREIGN OBJECT
OK
3 CLEAN HEAD AND CHECK OPERATION
(a) Head cleaning
(1) Raise the cassette door with your finger. Using a
pencil or similar object, push in the guide.
(2) Using a cleaning pen or cotton applicator soaked in
cleaner, clean the head surface, pinch rollers and
capstans.
(3) Check if the same trouble occurs again.
OK: Malfunction disappears.
NG REPLACE RADIO RECEIVER ASSY
(SEE PAGE 67-6)
OK
HEAD DIRTY
055LU-12

- DIAGNOSTICSAUDIO SYSTEM
05-1673
1863 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
SOUND QUALITY IS BAD IN ALL MODES (VOLUME IS TOO LOW)
INSPECTION PROCEDURE
1 ADJUST SOUND QUALITY
(a) Adjust the sound quality.
(1) Operate the radio receiver assy to adjust the sound quality.
OK: Malfunction disappears.
OK BAD SOUND QUALITY
NG
2 COMPARE IT WITH ANOTHER VEHICLE OF SAME MODEL
(a) Compare it with another vehicle of the same model.
(1) Compare it with the vehicle of the same type which does not have a trouble to see if there is any
difference in the sound quality.
OK: No difference is found.
OK SETTING
NG
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
(SEE PAGE 05-1632)
05CL8-04

B80388
S20
Sliding Roof Control ECU
B
IGECUB
UP
E
MPX2 7
1098
GR V
MPX+ 5
4
9 106 1 IE1
E6 IE1 8 82
4L
SB 11C 9
6
Battery FL Main2
1BR2
1 I15
Ignition SW
1 W
BW
W-B 4 6G
W-L
W-BY P
6 54
4M4DPassenger Side J/B
ECM EEJ/C
P
IE13 J17
B
IA ICDWN
MPX1 Instrument
Panel J/B
IG1 AM1
1C 1H 1D
1D 1A
1G
S/ROOF AM1
G
W
IE1
IC3 5
2A
2I
IG1
W W
1E
ALT
2 3 1
D.C.C ECU-B
4 Engine
Room J/B6
11
W-B
7
IE1
29
GR
C12
Combination
Meter IL2 W-B
74L 4N
1
W-B
W-B
W-B
1DW-B
IG
9UP
IG3 DWN
GRR 1 2
GND
F7
FL Block
Instrument
Panel J/B
14
O5
Over Head J/B
- DIAGNOSTICSSLIDING ROOF SYSTEM
05-1981
2171 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
SLIDING ROOF DOES NOT MOVE BY SLIDING ROOF CONTROL
SWITCH
CIRCUIT DESCRIPTION
The sliding roof drive gear sub-assy (sliding roof ECU) monitors a sliding roof motor switch signal in line,
and the motor built in the sliding roof drive gear sub-assy (sliding roof ECU) is driven.
WIRING DIAGRAM
05JFT-02

05-1982
- DIAGNOSTICSSLIDING ROOF SYSTEM
2172 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
1 READ VALUE OF HAND-HELD TESTER
(a) Connect the hand-held tester to the DLC3.
(b) Enter into the DATA LIST of the hand-held tester.
Sliding Roof ECU
ItemSwitch conditionStandard value
OPEN SWPressed "UnpressedON/OFF
CLOSE SWPressed "UnpressedON/OFF
NG Go to step 4
OK
2 PERFORM ACTIVE TEST BY HAND-HELD TESTER
(a) Connect the hand-held tester to the DLC3.
(b) Enter into the ACTIVE TEST of the hand-held tester.
Sliding Roof ECU
ItemCondition
Sliding RoofCLOSE/UP
Sliding RoofOPEN/DOWN
NG Go to step 6
OK
3 READ VALUE OF HAND-HELD TESTER
(a) Connect the hand-held tester to the DLC3.
(b) Enter into the DATA LIST of the hand-held tester.
Sliding Roof ECU
ItemSwitch conditionStandard value
Hall IC conditionDo sliding and tiling operationON/OFF
OK REPLACE SLIDING ROOF DRIVE GEAR
SUB-ASSY
NG

B80389
Wire Harness Side
S20
Sliding Roof Control ECU
B
ECUB
E
B80390
Wire Harness Side
O5
Overhead J/B
GND
IG
B70473
S20
Sliding Roof Control ECU Wire Harness Side
UP
DWN
O5
OVERHEAD J/B
UP
DOWN
- DIAGNOSTICSSLIDING ROOF SYSTEM
05-1983
2173 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
4 CHECK WIRE HARNESS
(a) Disconnect the S20 roof drive gear connector.
(b) Check the voltage or continuity between the terminals of
the S20 roof drive gear wire harness side connector.
Standard:
Symbol (Terminal No.)ConditionSpecified condition
E (S20-7) @ Body groundConstantContinuity
B (S20-1) @ E (S20-7)Constant10 to 14 V
ECUB (S20-5) @ E
(S20-7)Constant10 to 14 V
(c) Disconnect the O5 overhead J/B connector.
(d) Check the voltage or continuity between the terminals of
the O5 overhead J/B wire harness side connector.
Standard:
Symbol (Terminal No.)conditionSpecified condition
IG (O5-9) @ GND (O5-1)Ignition switch position
OFF " ON0V "10V - 14V
GND (O5-1) @ Body groundConstantContinuity
(e) Disconnect the O5 overhead J/B connector.
(f) Check the continuity between the S20 drive gear and O5
overhead J/B wire harness side connectors.
Standard:
Symbol (Terminal No.)
(Drive gear @ Motor switch)Specified condition
UP (S20-8) @ UP (O5-6)Continuity
DWN (S20-9) @ DOWN (O5-4)Continuity
IG (S20-6) @ IG3 (O5-11)Continuity
NG REPAIR OR REPLACE WIRE HARNESS
OK

B78737
OVERHEAD J/BO5
05-1984
- DIAGNOSTICSSLIDING ROOF SYSTEM
2174 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
5 INSPECT SLIDE ROOF MOTOR SWITCH
(a) Inspect the overhead J/B continuity.
Standard:
Terminal No.ConditionSpecified condition
1 @ 8Slide openContinuity
1 @ 9Tilt upContinuity
NG REPLACE SLIDE ROOF MOTOR SWITCH
OK REPLACE SLIDING ROOF DRIVE GEAR
SUB-ASSY
6 CHECK MOVEMENT OF SLIDING ROOF
(a) Remove the sliding roof drive gear, then check that the sliding roof can be moved by hand.
NG REPAIR OR REPLACE SLIDING ROOF
OK
REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSY

05CLA-03
F46769
Tire Pressure
Warning Lamp
- DIAGNOSTICSTIRE PRESSURE WARNING SYSTEM
05-733
923 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
SYSTEM DESCRIPTION
1. TIRE PRESSURE WARNING SYSTEM DESCRIPTION
(a) The tire pressure warning system informs the driver if it detects a low tire pressure. When the tire pres-
sure warning system detects low tire pressure in any of the 4 wheels, which affects safe driving the
tire pressure warning lamp comes on.
Specified Value
Front210 kpa (2.1 kgf/cm2, 30 psi)
Rear210 kpa (2.1 kgf/cm2, 30 psi)
(b) Tire pressure warning system is controlled by the skid control ECU.
HINT:
When the tire pressure reset switch is push, the tire pressure warning lamp goes off.
2. TIRE PRESSURE WARNING DISPLAY FUNCTION
(a) The tire pressure warning lamp comes on, according to
the condition of the tire pressure warning system, as
shown in the DIAGNOSIS SYSTEM (see page 05-744).

05IS8-02
I38139
I38140
I38141
- DIAGNOSTICSNAVIGATION SYSTEM
05-1775
1965 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
SYSTEM NORMAL CONDITION CHECK
(f) If the symptom is applicable to any of the following, it is intended behavior, and not a malfunction.
SymptomAnswer
A longer route than expected is chosen.Depending on the road conditions, the navigation ECU may determine that a longer
route is quicker.
Even when distance priority is high, the shortest route is not
shown.Some paths may not be advised due to safety concerns.
When the vehicle is put into motion immediately after the
engine starts, the navigation system deviates from the actu-
al position.If the vehicle starts before the navigation system activates, the system may not
react.
When running on certain types of roads, especially new
roads, the vehicle position deviates from the actual position.When the vehicle is driving on new roads not available on the map disc, the system
attempts to match it to another nearby road, causing the position mark to deviate.
(g) The following symptoms are not a malfunction, but are
caused by errors inherent in the GPS, gyro sensor, speed
sensor, and navigation ECU.
(1) The current position mark may be displayed on a
nearby parallel road the vehicle actually runs on.
(2) Immediately after a fork in the road, the current ve-
hicle position mark may be displayed on the wrong
road.
(3) When the vehicle turns right or left at an intersec-
tion, the current vehicle position mark may be dis-
played on a nearby parallel road.