TOYOTA HIGHLANDER 2001 Service Repair Manual
Page 741 of 2572
F46304
Combination Meter
Passenger Side J/BABS C11
Instrument Panel J/BSkid Control ECU with Actuator
I15
Ignition SW
F7
FL BlockC11 IF2
IL1 IC4 S27
S27 S27 4E
4H 4JJ6
J/C
IC4
IC1 1A
1C 1D
1G
1C 1C ECU-IG
IGN
AM1IG1 4M
IG2AM1
AM2WA
IG1
GND1
EA EB ALT
AM2
J4
J/C FL MAIN
Battery1
24 6
7 9
10 13
1729
4
446
4
62
10
32 12
12
1 E P W SB R-L
P
ESB
GRB-R
G
GR
W
Y
L-Y WB
W-B Y
W
AW-B 167 10
1
6 05-840
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
1030 Author: Date:
ABS WARNING LIGHT CIRCUIT (REMAINS ON)
CIRCUIT DESCRIPTION
During DTC read by SST (CHECK WIRE), if the ABS warning light remains on, troubleshoot by following
this inspection flow.
WIRING DIAGRAM
05CDG-1 1
Page 742 of 2572
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
05-841
1031 Author: Date:
INSPECTION PROCEDURE
1 CHECK DTC
(a) Is DTC output for ABS?
Standard:
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
OK
Page 743 of 2572
G24767
GND1IG1
Skid Control ECU
(harness side connector)
S27
05-842
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
1032 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) Read 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
TOO LOW: 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 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 744 of 2572
F46286
Skid Control ECU Front View
S27WA
Combination Meter
(harness side view)
C11
G24767
Skid Control ECU
(harness side connector)S27
GND1
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
05-843
1033 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
C11-17 - S27-29 (WA)Below 1 W
(c) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester ConnectionSpecified Condition
S27-29 (WA) - 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 745 of 2572
F50610
Skid Control ECU with Actuator Combination Meter
B4
Brake Warning SW
Passenger Side J/B
Instrument Panel J/B
I15
Ignition SW
F7
FL Block Brake
IGN
AM2BRL
PKB
AM2 IG2
FL MAIN
BatteryC11 IF3 IC4 S27
IL1
S27 C12
C12IF3
IC4
4E 4M
1C
1G4J
4MIC4
IC1Passenger Side J/B
P3
Parking
Brake SW J4
J/C
EB1
2
3 46
791011 13
1644
15
1
28 J6
J/C
11
9
16
6
1
10
1 1
1 B
PR V
W YSB
P
EER-B SB
R-W
LG
B
A L-Y GRW W-B
LG-B
05-854
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
1044 Author: Date:
BRAKE WARNING LIGHT CIRCUIT
CIRCUIT DESCRIPTION
The BRAKE warning light comes on when the brake fluid is insufficient, the parking brake is applied or the
EBD is defective.
WIRING DIAGRAM
05F1V-09
Page 746 of 2572
G24767
Skid Control ECU
(harness side connector)
S27
BRL
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
05-855
1045 Author: Date:
INSPECTION PROCEDURE
HINT:
When releasing the parking brake, set the chocks to hold the vehicle for safety.
1 CHECK BRAKE FLUID
(a) Release the parking brake pedal.
(b) Check that the brake fluid level is proper.
NG ADD BRAKE FLUID
OK
2 CHECK DTC FOR ABS
(a) Are the DTC recorded? (see page 05-765)
NO Go to step 3
YES
REPAIR CIRCUIT INDICATED BY OUTPUT CODE
3 INSPECT BRAKE WARNING LIGHT
WHEN USING HAND-HELD TESTER:
(a) Connect the hand-held tester to the DLC3.
(b) Start the engine.
(c) Select the item ºBRAKE WARN LIGHTº in the ACTIVE TEST and operate the BRAKE warning light
on the hand-held tester.
ItemVehicle Condition / Test DetailsDiagnostic Note
BRAKE WRN LIGHTTurns BRAKE warning light ON / OFFObserve combination me-
ter
(d) Check that ºONº and ºOFFº of the BRAKE warning light are indicated on the combination meter when
using the hand-held tester.
OK:
Turn the BRAKE 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 terminal BRL of the skid control ECU.
(c) Turn the ignition switch to the ON position.
(d) Check that the brake warning light.
OK:
Turn the light on or off in accordance with the connec-
tion of terminal BRL and body ground.
NG Go to step 4
OK
REPLACE ABS & TRACTION ACTUATOR ASSY (SEE PAGE 32-37)
Page 747 of 2572
G26238
Parking Brake Switch
P3Push Release
G26242G26243
Skid Control ECU
(harness side connector)
Parking Brake Switch
(harness side connector)S27
PKB
P3
PKB
G26237
Brake Fluid Level Warning Switch
B4
05-856
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
1046 Author: Date:
4 INSPECT PARKING BRAKE SWITCH ASSY
(a) Remove the parking brake switch connector.
(b) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester ConnectionSwitch ConditionSpecified Condition
P3-1 - Ground partReleasedBelow 1 W
P3-1 - Ground partPushed in10 kW or higher
NG REPLACE PARKING BRAKE SWITCH ASSY
OK
5 CHECK HARNESS OR CONNECTOR(SKID CONTROL ECU - PARKING BRAKE
SWITCH)
(a) Disconnect the skid control ECU connector and the park-
ing brake switch connector.
(b) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester ConnectionSpecified Condition
S27-28 (PKB) - P3-1 (PKB)Below 1 W
(c) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester ConnectionSpecified Condition
S27-28 (PKB) - Body ground10 kW or higher
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
6 INSPECT BRAKE FLUID LEVEL WARNING SWITCH
(a) Remove the reservoir tank cap and strainer.
(b) Disconnect the brake fluid level warning switch connec-
tor.
(c) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester ConnectionSwitch ConditionSpecified Condition
(B4-1) - (B4-2)Float UP10 kW or higher
(B4-1) - (B4-2)Float DOWNBelow 1 W
NG REPLACE BRAKE FLUID LEVEL WARNING
SWITCH
OK
Page 748 of 2572
I37939
Brake Fluid Level Warning Switch
(harness side connector)
B4
C12Combination Meter
(harness side view)
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
05-857
1047 Author: Date:
7 CHECK HARNESS OR CONNECTOR(BRAKE FLUID LEVEL WARNING SWITCH -
COMBINATION METER)
(a) Disconnect the combination meter connector and the
brake fluid level warning switch connector.
(b) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester ConnectionSpecified Condition
(C12-10) - (B4-1)Below 1 W
(c) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester ConnectionSpecified Condition
(C12-10) - Body ground10 kW or higher
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
Page 749 of 2572
F46287
Skid Control ECU
(harness side connector)
S27
BRL
C12Combination Meter
(harness side view)
05-858
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
1048 Author: Date:
8 CHECK HARNESS OR 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
S27-44 (BRL) - (C12-3)Below 1 W
(c) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester ConnectionSpecified Condition
S27-44 (BRL) - Body ground10 kW or higher
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
REPAIR OR REPLACE COMBINATION METER ASSY (SEE PAGE 32-37)
Page 750 of 2572
F46304
Combination Meter
Passenger Side J/BABS C11
Instrument Panel J/BSkid Control ECU with Actuator
I15
Ignition SW
F7
FL BlockC11 IF2
IL1 IC4 S27
S27 S27 4E
4H 4JJ6
J/C
IC4
IC1 1A
1C 1D
1G
1C 1C ECU-IG
IGN
AM1IG1 4M
IG2AM1
AM2WA
IG1
GND1
EA EB ALT
AM2
J4
J/C FL MAIN
Battery1
24 6
7 9
10 13
1729
4
446
4
62
10
32 12
12
1 E P W SB R-L
P
ESB
GRB-R
G
GR
W
Y
L-Y WB
W-B Y
W
AW-B 167 10
1
6 05-844
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
1034 Author: Date:
ABS WARNING LIGHT CIRCUIT (DOES NOT LIGHT UP)
WIRING DIAGRAM
05F1T-06