Page 2049 of 2572

- DIAGNOSTICSAUDIO SYSTEM
05-1685
1875 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
CASSETTE TAPE CANNOT BE EJECTED
INSPECTION PROCEDURE
1 PRESS ºEJECTº AND CHECK OPERATION
(a) Press ºEJECTº and check the operation.
(1) Press the cassette tape EJECT switch of the radio receiver assembly for 2 seconds or more and
check that the cassette tape is ejected.
OK: The cassette tape is ejected.
NG REPLACE RADIO RECEIVER ASSY
(SEE PAGE 67-6)
OK
2 CHECK CASSETTE TAPE
(a) Check the cassette tape.
(1) Check that the ejected cassette tape does not have a peeled label, a cassette body deformation
or any other defects.
OK: No fault on the cassette tape.
NG CASSETTE TAPE FAULTY
OK
3 REPLACE CASSETTE TAPE WITH ANOTHER AND RECHECK
(a) Replace the cassette tape with another and recheck.
(1) Replace the cassette tape 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
CASSETTE TAPE FAULTY
05ASK-06
Page 2050 of 2572
05-1684
- DIAGNOSTICSAUDIO SYSTEM
1874 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
CASSETTE TAPE CANNOT BE INSERTED OR PLAYED
INSPECTION PROCEDURE
1 CHECK FOR ANY FOREIGN OBJECT
(a) Check for any foreign objects.
(1) Check that no foreign objects or defects are detected in the cassette tape player of the radio re-
ceiver assembly.
OK: No foreign objects or defects are detected.
NG REMOVE FOREIGN OBJECT
OK
2 CHECK CASSETTE TAPE
(a) Check the cassette tape.
(1) Check that the cassette tape is a normal tape with music or voice recorded.
OK: Proper cassette tape with music or voice recorded.
NG CASSETTE TAPE FAULTY
OK
3 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: The function returns to be normal.
NG REPLACE RADIO RECEIVER ASSY
(SEE PAGE 67-6)
OK
CASSETTE TAPE FAULTY
05ASJ-06
Page 2051 of 2572

N17398
HeadCapstan
Pinch Roller
- DIAGNOSTICSAUDIO SYSTEM
05-1687
1877 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
TAPE IS TANGLED DUE TO INCORRECT TAPE SPEED OR
AUTO-REVERSE MALFUNCTION
INSPECTION PROCEDURE
1 CHECK FOR ANY FOREIGN OBJECT
(a) Check for any foreign objects.
(1) Check that no foreign objects or defects are detected in the cassette tape player of the radio re-
ceiver assy.
OK: No foreign objects or defects are detected.
NG REMOVE FOREIGN OBJECT
OK
2 REPLACE CASSETTE TAPE WITH ANOTHER AND RECHECK(BELOW 90 MIN.)
(a) Replace the cassette tape with another one and recheck.
(1) Replace the cassette tape with another normal one (90
minutes. or less) to see if the same
trouble occurs again.
OK: Malfunction disappears.
OK CASSETTE TAPE FAULTY
NG
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
055LV-12
Page 2052 of 2572
05-1522
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1712 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
TC TERMINAL CIRCUIT
CIRCUIT DESCRIPTION
The DTCs output mode is set by connecting terminals TC and CG of the DLC3.
The DTCs are displayed by blinking the SRS warning light.
HINT:
Make sure that DTC B1281 has not been output. If DTC B1281 has been output, refer to the multiplex
communication system.
When each warning light stays blinking, a ground short in the wiring of terminal TC of the DLC3 or an
internal ground short in each ECU is suspected.
The DTC output mode signal is transmitted through BEAN to each ECU including the airbag sensor
assy center, except for the skid control ECU with actuator. Thus when all systems except the ABS sys-
tem do not enter DTC output mode, it can be suspected that there is an ECM malfunction.
0526A-05
Page 2053 of 2572
H45940
Airbag Sensor
Assy Center
A1724
1
Combination Meter4A5Short Connector
GR
M3
Multi-DisplayBR
IB2IF310A1722
21 IB2
4C2
A11
Body ECU IL2
B9 54F
B10 7
6
6C11 P51
1
2
2S30
S30
S31 S31 9
A10MPX+
MPX-
MPX1
MPX2
MPX1
MPX2
7BR R G V
G
BR SB
O
SB 4 11
7
8G5 Gateway ECU A/C Control Assembly
Passenger Side J/B
V
E6 18
3J 12
3E1 3H5
MPX1
IC YT4 (*1) (*1)12
SW with ECU Power Window Master
GR
V
31
(*3) Center J/B
G
*1: w/ Navigation System
*2: w/o Navigation System
*3: w/ Theft Deterrent System G
(*2)
Y
9
C12 MPX+
MPX-IL21
GR29
E6
20
E5 J16
J/C
Passenger Side J/B
4N1 O
DD
TC
CGD
IF33
TC
4 W-B W-BTheft Deterrent ECUEngine
Control Module 8
O
OP D3
DLC3W MPD1
MPD2
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05-1523
1713 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
WIRING DIAGRAM
Page 2054 of 2572
H40173
A67445H40173
A67445H44085
DLC3:
TC
ECM:
TC
E5
H40173
DLC3
CG
05-1524
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1714 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
INSPECTION PROCEDURE
1 CHECK WIRE HARNESS(DLC3 - ECM)
(a) Turn the ignition switch to the LOCK position.
(b) Disconnect the airbag sensor assy center connector.
(c) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified condition
DLC3 (TC) -
E5-20 (TC)AlwaysBelow 1 W
NG REPAIR OR REPLACE WIRE HARNESS(TC of
DLC3 - TC of ECM)
OK
2 CHECK WIRE HARNESS(CG of DLC3 - BODY GROUND)
(a) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified condition
DLC3 (CG) -
Body groundAlwaysBelow 1 W
NG REPAIR OR REPLACE WIRE HARNESS(CG of
DLC3 - BODY GROUND)
OK
Page 2055 of 2572
A67445
ECM:
TC
E5
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05-1525
1715 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
3 CHECK WIRE HARNESS(TC of ECM - BODY GROUND)
(a) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified condition
E5-20 (TC) -
Body groundAlways1MW or Higher
NG REPAIR OR REPLACE WIRE HARNESS AND
EACH ECU
OK
4 REPLACE ECM
(a) Check that the ECM.
Result:
A: Normal system code is output.
B: DTC is output.
C: ECM does not set the DTC output mode.
A END
B GO TO INSPECTION PROCEDURE OF DTC
OUTPUT
C
REPLACE AIRBAG SENSOR ASSY CENTER (SEE PAGE 60-53)
Page 2056 of 2572
B80404
2A1G IC3
BATTERY FL MAIN W W
F7
FUSIBLE
LINK BLOCKEngine Room J/B
SECURITY ECU-B
D.C.C
3
12I
1 W - L5
BR
109 INSTRUMENT PANEL J/B ASSY
2A 451DP
EE J17
J/C
P11
IL1O2 Theft Warning ECU Assy T4
+B1
+B2
SH- 13
IF12
W 4
IC3L L
LG
IF3 17
B
2 IC3
T1
Theft Deterrent
Horn B - O
1
05-2028
- DIAGNOSTICSTHEFT DETERRENT SYSTEM
2218 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
THEFT DETERRENT HORN CIRCUIT
CIRCUIT DESCRIPTION
When the theft deterrent system is operating, the relay in the ECU turns on and off in a cycle of approximately
0.2 seconds, causing the theft warning horn to blow (see the wiring diagram below).
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK THEFT WARNING ECU ASSY (SECURITY)
(a) Remove the SECURITY fuse from the engine room J/B.
(b) Measure the resistance.
Standard: Below 1 W
NG REPAIR OR REPLACE HARNESS AND
CONNECTOR
OK
05ITM-04