TOYOTA HIGHLANDER 2001 Service Repair Manual

G24991G26210
S14
Steering Sensor Wire Harness View:
CANHESS
05-2130
- DIAGNOSTICSCAN COMMUNICATION SYSTEM
2320 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
7 CHECK CAN BUS LINE FOR SHORT TO GND(STEERING SENSOR - JUNCTION
CONNECTOR, CAN-H)
(a) Disconnect the connector (S14) from the steering sensor.
(b) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified value
S14-2 (ESS) -
S14-10 (CANH)Ignition SW OFF1 MW or more
HINT:
Check the wire harness connector connected to the junction
connector while disconnecting it.
NG REPAIR OR REPLACE CAN MAIN BUS LINE OR
CONNECTOR (STEERING SENSOR - JUNC-
TION CONNECTOR, CAN-H)
OK
REPAIR OR REPLACE YAW RATE SENSOR SUB BUS LINE OR CONNECTOR (CAN-H)

G30957
S14
Steering Sensor
CANL CANH
10
9CANL CANH J16
J/CSkid Control ECU
with Actuator
Y1
Yaw Rate Sensor
Passenger Side J/B D3
DLC3
Instrument Panel J/B
FL MAIN
BatteryF7
FL Block
ALT 1
2 CANL CANH
3
2
CANL CANH
6
14
CG
4
BAT
16Y
W10
21
B
WG
W 12
IO2
IO29
20
B
W
W-B
W22 11STRGVSC
VSC
STRG
YAW
YAW
DLC3
DLC3
4C 4N1 6
W-B
10
1E 1A1 OBD
B
IC 8
19L
W12
IC4
IC413B
W11
S27
S2725
13
W 05-2102
- DIAGNOSTICSCAN COMMUNICATION SYSTEM
2292 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
CHECK CAN BUS LINE
CIRCUIT DESCRIPTION
When any DTC for the CAN communication is output, first measure the resistance between the terminals
of DLC3 to specify the trouble area.
WIRING DIAGRAM
05DY5-04

C81825
12345678
9 10111213141516
G25474G26206
DLC3:
CANH
CANLD3
C81825
12345678
9 10111213141516
G25474G26206
DLC3:
CANH
BATD3
- DIAGNOSTICSCAN COMMUNICATION SYSTEM
05-2103
2293 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
INSPECTION PROCEDURE
1 CHECK CAN BUS LINE(MAIN BUS LINE FOR DISCONNECTION, BUS LINES FOR
SHORT CIRCUIT)
(a) Turn the ignition switch to the LOCK position.
(b) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified valueResult
D3-6 (CANH) -
D3-14 (CANL)Ignition SW OFF54 to 69 WOK
D3-6 (CANH) -
D3-14 (CANL)Ignition SW OFF69 W or moreNG-A
D3-6 (CANH) -
D3-14 (CANL)Ignition SW OFF54 W or lessNG-B
NG-A CHECK CAN MAIN BUS LINE FOR
DISCONNECTION (SEE PAGE 05-2109)
NG-B CHECK CAN BUS LINES FOR SHORT CIRCUIT
(SEE PAGE 05-21 12)
OK
2 CHECK CAN BUS LINE (CAN-H) FOR SHORT TO +B
(a) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified value
D3-6 (CANH) -
D3-16 (BAT)Ignition SW OFF1 MW or more
NG CHECK CAN BUS LINE (CAN-H) FOR SHORT
TO +B (SEE PAGE 05-21 16)
OK

C81825
12345678
9 10111213141516
G25474G26206
DLC3:
CANL
BATD3
C81825
12345678
9 10111213141516
G25474G26206
DLC3:CANH
CGD3
C81825
12345678
9 10111213141516
G25474G26206
DLC3:
CANL CGD3
05-2104
- DIAGNOSTICSCAN COMMUNICATION SYSTEM
2294 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
3 CHECK CAN BUS LINE (CAN-L) FOR SHORT TO +B
(a) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified value
D3-14 (CANL) -
D3-16 (BAT)Ignition SW OFF1 MW or more
NG CHECK CAN BUS LINE (CAN-L) FOR SHORT TO
+B (SEE PAGE 05-2121)
OK
4 CHECK CAN BUS LINE (CAN-H) FOR SHORT TO GND
(a) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified value
D3-4 (CG) -
D3-6 (CANH)Ignition SW OFF3 kW or more
NG CHECK CAN BUS LINE (CAN-H) FOR SHORT
TO GND (SEE PAGE 05-2126)
OK
5 CHECK CAN BUS LINE (CAN-L) FOR SHORT TO GND
(a) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified value
D3-4 (CG) -
D3-14 (CANL)Ignition SW OFF3 kW or more
NG CHECK CAN BUS LINE (CAN-L) FOR SHORT TO
GND (SEE PAGE 05-2131)
OK
HOW TO PROCEED WITH TROUBLESHOOTING (SEE PAGE 05-2095)

B80399
D.C.C
BatteryTheft Warning ECU Assy
+B1
E 29
13 5
3D 2A 4
3F
W-B 1W-B IC35
BR
FL Main 3Instrument Panel J/B Assy
Engine Room
J/B Assy
Center J/B
W ECU-B2A
2I1
SECURITY
5
IB+B2
W4
IC3IF1IL1 11
WL E
E J17
J/C
P
1G 1D
10
9P
2
L2
3 O
W-L
F7
FUSIBLE
LINK BLOCKT4 05-2026
- DIAGNOSTICSTHEFT DETERRENT SYSTEM
2216 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
ECU POWER SOURCE CIRCUIT
CIRCUIT DESCRIPTION
This circuit provides power to operate the theft deterrent (warning) ECU.
WIRING DIAGRAM
0522S-06

B63408
Wire Harness Side
T4
Theft Warning ECU Assy
B63408
Wire Harness Side
T4
Theft Warning ECU Assy
- DIAGNOSTICSTHEFT DETERRENT SYSTEM
05-2027
2217 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
INSPECTION PROCEDURE
1 CHECK THEFT WARNING ECU ASSY (ECU-B)
(a) Remove the ECU-B fuse from the engine room J/B.
(b) Measure the resistance.
Standard: Below 1 W
OK PROCEED TO NEXT CIRCUIT INSPECTION
SHOWN IN PROBLEM SYMPTOMS TABLE
NG
2 CHECK WIRE HARNESS (POWER SOURCE)
(a) Disconnect the T4 ECU connector.
(b) Measure the voltage of the wire harness side connector.
Standard:
Tester ConnectionSpecified Condition
T4-2 (+B1) - T4-29 (E)10 to 14 V
NG REPAIR OR REPLACE HARNESS AND
CONNECTOR
OK
3 CHECK THEFT WARNING ECU ASSY (GROUND)
(a) Disconnect the T5 ECU connector.
(b) Measure the resistance between the wire harness side
connector and body ground.
Standard:
Tester ConnectionSpecified Condition
T4-2 (+B1) - Body groundBelow 1 W
T4-29 (E) - Body groundBelow 1 W
NG REPAIR OR REPLACE HARNESS AND
CONNECTOR
OK
PROCEED TO NEXT CIRCUIT INSPECTION

E50013
05-1678
- DIAGNOSTICSAUDIO SYSTEM
1868 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
CD CANNOT BE INSERTED OR IS EJECTED RIGHT AFTER
INSERTION
INSPECTION PROCEDURE
1 CHECK IF A NORMAL CD IS INSERTED
(a) Check if a normal CD is inserted.
(1) Make sure that the CD is a normal audio CD, and that there is no deformation, flaw, stain, burr
or other defects on the CD.
OK: Normal audio CD.
Reference:

Translucent or oddly-shaped CD cannot be played.

Computer CD-ROMs (even those with music) and CD-R discs cannot be played.

Playing an 8 cm CD does not require an adapter.
NG CD FAULTY
OK
2 CHECK IF A CD IS INSERTED PROPERLY
(a) Check if a CD is inserted properly.
(1) Check whether or not the CD is inserted upside down.
OK: Not upside down.
NG SET DISC CORRECTLY
OK
3 DISC CLEANING
(a) Disc cleaning
(1) If the disc gets dirty, clean the disc by wiping the sur-
face from the center to outside in the radial direc-
tions with a soft cloth.
NOTICE:
Do not use a conventional record cleaner or anti-static pre-
servative.
OK: Malfunction disappears.
OK DISC DIRTY
NG
05ASH-07

- DIAGNOSTICSAUDIO SYSTEM
05-1679
1869 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
4 REPLACE CD WITH ANOTHER AND RECHECK
(a) Replace the CD with another and recheck.
(1) Replace the CD with another normal one to see if the same trouble occurs again.
OK: Malfunction disappears.
NG REPLACE RADIO RECEIVER ASSY
(SEE PAGE 67-6)
OK
CD FAULTY

E50013
05-1682
- DIAGNOSTICSAUDIO SYSTEM
1872 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
CD SOUND SKIPS
INSPECTION PROCEDURE
1 DISC CLEANING
(a) Disc cleaning
(1) If the disc gets dirty, clean the disc by wiping the sur-
face from the center to outside in a radial direction
with a soft cloth.
NOTICE:
Do not use a conventional record cleaner or anti-static pre-
servative.
OK: Malfunction disappears.
OK DISC DIRTY
NG
2 REPLACE CD WITH ANOTHER AND RECHECK
(a) Replace the CD with another and recheck.
(1) Replace the CD with another normal one to see if the same trouble occurs again.
OK: Malfunction disappears.
OK CD FAULTY
NG
3 CHECK WHEN THIS HAPPENS
(a) Check when this happens.
(1) Check under what conditions (places) noise occurs.
OK: Driving on a bumpy road.
OK Go to step 5
NG
4 COMPARE IT WITH ANOTHER CAR 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 CD sound.
OK: No difference found.
OK SETTING
NG
055M0-1 1

- DIAGNOSTICSAUDIO SYSTEM
05-1683
1873 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
5 CHECK OF RADIO RECEIVER ASSEMBLY INSTALLATION
(a) Check the radio receiver assembly installation condition.
(1) Check that the radio receiver assembly is installed properly.
OK: Installed properly.
NG INSTALL THE RADIO RECEIVER ASSEMBLY
PROPERLY
OK
6 DID TEMPERATURE IN CABIN CHANGE RAPIDLY?
(a) Did the temperature in the cabin change rapidly?
(1) Check whether or not the rapid temperature change occurred in the cabin.
OK: The rapid temperature change occurred.
Reference:
The rapid temperature change creates condensation inside the CD player, which may prevent the CD from
being played.
NG REPLACE RADIO RECEIVER ASSY
(SEE PAGE 67-6)
OK
CONDENSATION DUE TO TEMPERATURE CHANGE (LEAVE IT AS IT IS FOR A WHILE BEFORE
USING)