TOYOTA HIGHLANDER 2001 Service Repair Manual
Page 2501 of 2572
Page 2502 of 2572
F46303
Combination MeterSkid Control ECU with Actuator
Instrument Panel J/BI15
Ignition SW
F7
FL BlockECU-IG
IGN
AM1
ALT
AM2VSC
IG1 AM1VSCW
IG1
FL MAIN
BatteryIG2 AM2 IF3IC2
S27
IL1
S27 IC4 C11
J6
J/C Passenger Side J/B
IC1 C12
4E
4H 4J 4M
1A1C
1D
1C
1C 1G 1
2 45
6 7
1013 1636
9
4
11 7
6
642
746
10
1 12
10 PV
L-Y
SB
PP
WYEE
GR B-R
G
GR
W
Y B W
L-Y12
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
05-847
1037 Author: Date:
VSC WARNING LIGHT CIRCUIT (REMAINS ON)
CIRCUIT DESCRIPTION
If the ECU stores DTC, the VSC warning light comes on in the combination meter.
WIRING DIAGRAM
05CDH-1 1
Page 2503 of 2572
05-848
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
1038 Author: Date:
INSPECTION PROCEDURE
1 CHECK DTC
(a) Is DTC output for ABS and VSC?
DTC is not outputA
DTC is outputB
B REPAIR CIRCUIT INDICATED BY OUTPUT
CODE
A
2 INSPECT CHECK IF SKID CONTROL ECU CONNECTOR IS SECURELY
CONNECTED
NG CONNECT CONNECTOR TO ECU
OK
3 INSPECT BATTERY
(a) Check the battery voltage.
Standard:
Tester ConnectionSpecified Condition
Battery terminal
((+) - (-))11 to 14 V
NG INSPECT CHARGING SYSTEM (SEE PAGE
19-12 (2AZ-FE) OR 19-36 (3MZ-FE))
OK
Page 2504 of 2572
G24767
GND1IG1
Skid Control ECU
(harness side connector)
S27
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
05-849
1039 Author: Date:
4 INSPECT SKID CONTROL ECU TERMINAL VOLTAGE(IG1 TERMINAL)
WHEN USING HAND-HELD TESTER:
(a) Connect the hand-held tester to the DLC3.
(b) Start the engine.
(c) Select the DATA LIST mode on the hand-held tester.
(d) Check the voltage condition output from the ECU displayed on the hand-held tester.
ItemMeasurement Item /
Range (Display)Normal Condition
IG VOLTAGEECU power supply voltage / TOO
LOW / NORMALNORMAL: 9.5 V or over
UNDER: Below 9.5 V
OK:
ºNormalº is displayed.
WHEN NOT USING HAND-HELD TESTER:
(a) Disconnect the skid control ECU connector.
(b) Turn the ignition switch to the ON position.
(c) Measure the voltage according to the value(s) in the table
below.
Standard:
Tester ConnectionSpecified Condition
S27-46 (IG1) - S27-32 (GND1)11 to 14 V
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
Page 2505 of 2572
F46287
Skid Control ECU
S27
VSCW
Combination Meter
(harness side view)
C12
(harness side connector)
G24767
GND1
Skid Control ECU
(harness side connector)
S27
05-850
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
1040 Author: Date:
5 CHECK HARNESS AND CONNECTOR(SKID CONTROL ECU - COMBINATION
METER)
(a) Disconnect the skid control ECU connector and combina-
tion meter connector.
(b) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester ConnectionSpecified Condition
C12 - 7 - S27-36 (VSCW)Below 1 W
(c) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester ConnectionSpecified Condition
S27-36 (VSCW) - Body ground10 kW or higher
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
6 CHECK HARNESS AND CONNECTOR(SKID CONTROL ECU - BODY GROUND)
(a) Disconnect the skid control ECU connector.
(b) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester ConnectionSpecified Condition
S27-32 (GND1) - Body groundBelow 1 W
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
REPLACE ABS & TRACTION ACTUATOR ASSY (SEE PAGE 32-37)
Page 2506 of 2572
F46303
Combination MeterSkid Control ECU with Actuator
Instrument Panel J/BI15
Ignition SW
F7
FL BlockECU-IG
IGN
AM1
ALT
AM2VSC
IG1 AM1VSCW
IG1
FL MAIN
BatteryIG2 AM2 IF3IC2
S27
IL1
S27 IC4 C11
J6
J/C Passenger Side J/B
IC1 C12
4E
4H 4J 4M
1A1C
1D
1C
1C 1G 1
2 45
6 7
1013 1636
9
4
11 7
6
642
746
10
1 12
10 PV
L-Y
SB
PP
WYEE
GR B-R
G
GR
W
Y B W
L-Y12
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
05-851
1041 Author: Date:
VSC WARNING LIGHT CIRCUIT (DOES NOT LIGHT UP)
CIRCUIT DESCRIPTION
If the ECU stores DTC, the VSC warning light comes on in the combination meter.
WIRING DIAGRAM
05F1U-05
Page 2507 of 2572
G24767
Skid Control ECU
(harness side connector)
S27
VSCW
05-852
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
1042 Author: Date:
INSPECTION PROCEDURE
1 CHECK VSC WARNING LIGHT
WHEN USING HAND-HELD TESTER:
(a) Connect the hand-held tester to the DLC3 and start the engine.
(b) Select the item ºVSC WARN LIGHTº in the ACTIVE TEST and operate the VSC warning light on the
hand-held tester.
(c) Check that ºONº and ºOFFº of the VSC warning light are indicated on the combination meter when us-
ing the hand-held tester.
ItemVehicle Condition / Test DetailsDiagnostic Note
VSC WARN LIGHTTurns VSC warning light ON / OFFObserve combination me-
ter
OK:
Turn the VSC warning light ON or OFF in accordance with the hand-held tester.
WHEN NOT USING HAND-HELD TESTER:
(a) Turn the ignition switch off and disconnect the connector
from the skid control ECU.
(b) Ground the terminal VSCW of skid control ECU.
(c) Turn the ignition switch to the ON position.
(d) Check that the VSC warning light.
OK:
Turn the light ON or OFF in accordance with the con-
necting condition of terminal VSCW and body
ground.
NG CHECK AND REPAIR VSC WARNING LIGHT
CIRCUIT (SEE PAGE 05-1868)
OK
Page 2508 of 2572
F46287
Skid Control ECU
S27
VSCW
Combination Meter
(harness side view)
C12
(harness side connector)
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
05-853
1043 Author: Date:
2 CHECK HARNESS AND CONNECTOR(SKID CONTROL ECU - COMBINATION
METER)
(a) Disconnect the skid control ECU connector and combina-
tion meter connector.
(b) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester ConnectionSpecified Condition
C12 - 7 - S27-36 (VSCW)Below 1 W
(c) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester ConnectionSpecified Condition
S27-36 (VSCW) - Body ground10 kW or higher
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
REPLACE ABS & TRACTION ACTUATOR ASSY (SEE PAGE 32-37)
Page 2509 of 2572
31050-02
C82977
No.2 Plug
No.1 Plug
Drain Plug
F45388
- TRANSFERTRANSFER ASSY (4WD)
31-9
3087 Author: Date:
TRANSFER ASSY (4WD)
OVERHAUL
HINT:
COMPONENT:
3MZ-FE ENGINE: See page 14-134
2AZ-FE ENGINE: See page 14-15
AUTOMATIC TRANSMISSION (U151E/U151F): See page 40-18
TRANSFER: See page 31-3
1. REMOVE ENGINE ASSEMBLY WITH TRANSAXLE (3MZ-FE ENGINE TYPE)
(SEE PAGE 14-149)
2. REMOVE ENGINE ASSEMBLY WITH TRANSAXLE (2AZ-FE ENGINE TYPE)
(SEE PAGE 14-24)
3. REMOVE TRANSFER CASE NO.1 PLUG
(a) Remove the transfer case No.1 plug.
(b) Remove the gasket No.1 from the transfer case No.1
plug.
4. REMOVE TRANSFER CASE NO.2 PLUG
(a) Remove the transfer case No.2 plug.
(b) Remove the gasket No.2 from the transfer case No.2 plug.
5. REMOVE TRANSFER DRAIN PLUG
(a) Remove the transfer drain plug and bleed the transfer oil.
(b) Remove the drain gasket from the transfer drain plug.
6. REMOVE TRANSFER STIFFENER PLATE RH (2AZ-FE
ENGINE TYPE)
(a) Remove the 5 bolts and the stiffener plate RH.
7. REMOVE ENGINE MOUNTING BRACKET RR (2AZ-FE ENGINE TYPE)
(a) Remove the 3 bolts and the engine mounting bracket RR.
8. REMOVE AUTOMATIC TRANSMISSION W/TRANSFER (3MZ-FE ENGINE TYPE)
(SEE PAGE 40-20)
Page 2510 of 2572
C82785
C82798
C94714
C83507
C50303
31-10
- TRANSFERTRANSFER ASSY (4WD)
3088 Author: Date:
9. REMOVE TRANSFER ASSY
(a) Remove the 2 bolts and 6 nuts.
(b) Using a plastic hammer, remove the transfer assy from
the transaxle assy.
NOTICE:
Remove the transfer assy from the transaxle assy
without tilting it.
When removing the transfer assy, do not hold onto
the oil seal parts on both sides of the assy.
10. REMOVE TRANSFER COVER GASKET
(a) Remove the transfer cover gasket from the transfer assy.
11. REMOVE TRANSFER CASE BREATHER PLUG
(a) Using a screwdriver and a hammer, remove the transfer
case breather plug from the transfer case cover No.1.
NOTICE:
Be careful not to damage the contact surface of the case
cover No.1.
12. REMOVE TRANSFER CASE COVER NO.1
(a) Remove the 8 bolts.
(b) Using a brass bar and a hammer, remove the transfer
case cover No.1 from the transfer.
NOTICE:
Be careful not to damage the contact surfaces of the case
and cover.