o2 sensor TOYOTA HIGHLANDER 2001 Service Repair Manual
[x] Cancel search | Manufacturer: TOYOTA, Model Year: 2001, Model line: HIGHLANDER, Model: TOYOTA HIGHLANDER 2001Pages: 2572, PDF Size: 34.8 MB
Page 1309 of 2572
G26359
Yaw Rate Sensor Connector
Front View:
CANLCANH
Y1
G26359
Yaw Rate Sensor Connector
Front View:
IG
GND
Y1
05-2108
- DIAGNOSTICSCAN COMMUNICATION SYSTEM
2298 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
INSPECTION PROCEDURE
1 CHECK CAN BUS LINE FOR DISCONNECTION(YAW RATE SENSOR SUB BUS
LINE)
(a) Turn the ignition switch to the LOCK position.
(b) Disconnect the connector (Y1) from the yaw rate sensor.
(c) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified value
Y1-2 (CANL) -
Y1-3 (CANH)Ignition SW OFF54 to 69 W
NG REPAIR OR REPLACE YAW RATE SENSOR SUB
BUS LINE OR CONNECTOR (CAN-H, CAN-L)
OK
2 CHECK WIRE HARNESS(IG,GND)
(a) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified value
Y1-1 (GND) -
Body groundAlwaysBelow 1 W
(b) Measure the voltage according to the value(s) in the table
below.
Standard:
Tester connectionConditionSpecified value
Y1-5 (IG) - Body groundIgnition SW ON10 to 14 V
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
REPLACE YAW RATE SENSOR (SEE PAGE 32-46)
Page 1310 of 2572
G30960
S14
Steering Sensor
CANL CANH
10
9CANL CANH J16
J/CSkid Control ECU
with Actuator
Y
W10
21STRGVSC
VSC
STRG8
19L
W12
IC4
IC413B
W11
S27
S2725
- DIAGNOSTICSCAN COMMUNICATION SYSTEM
05-2109
2299 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
CHECK CAN MAIN BUS LINE FOR DISCONNECTION
CIRCUIT DESCRIPTION
The CAN main bus line and DLC3 sub bus line may have a disconnection when the resistance between ter-
minals 6 (CANH) and 14 (CANL) of the DLC3 is more than 69 W.
SymptomTrouble Area
Resistance between terminals 6 (CANH) and 14 (CANL) of
DLC3 is more than 69 W .CAN main bus line
Skid control ECU
Steering sensor
WIRING DIAGRAM
05DY7-1 1
Page 1312 of 2572
E69126
Skid Control ECU Connector
Front View:
CANH
CANL
S27
G24991G26210
Steering Sensor Wire Harness View:
S14
CANH
CANL
- DIAGNOSTICSCAN COMMUNICATION SYSTEM
05-21 11
2301 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
3 CHECK CAN MAIN BUS LINE FOR DISCONNECTION(SKID CONTROL ECU -
JUNCTION CONNECTOR)
(a) Disconnect the connector (S27) from the skid control
ECU.
(b) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified value
S27-1 1 (CANH) -
S27-25 (CANL)Ignition SW OFF108 to 132 W
NG REPAIR OR REPLACE CAN MAIN BUS LINE OR
CONNECTOR (SKID CONTROL ECU - JUNC-
TION CONNECTOR)
OK
REPLACE SKID CONTROL ECU WITH ACTUATOR (SEE PAGE 32-37)
4 CHECK CAN MAIN BUS LINE FOR DISCONNECTION(STEERING SENSOR -
JUNCTION CONNECTOR)
(a) Turn the ignition switch to the LOCK position.
(b) Disconnect the connector (S14) from the steering sensor.
(c) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified value
S14-10 (CANH) -
S14-9 (CANL)Ignition SW OFF108 to 132 W
NG REPAIR OR REPLACE CAN MAIN BUS LINE OR
CONNECTOR (STEERING SENSOR - JUNC-
TION CONNECTOR)
OK
REPLACE STEERING SENSOR (SEE PAGE 32-48)
Page 1313 of 2572
G30961
S14
Steering Sensor
CANL CANH
9CANL CANH J16
J/CSkid Control ECU
with Actuator
Y1
Yaw Rate Sensor
CANL CANH
3
2Y
W10
21
B
WG
W 12
IO2
IO29
20STRGVSC
VSC
STRG
YAW8
19L
W12
IC4
IC413B
W11
S27
S2725
13YAW 10 05-21 12
- DIAGNOSTICSCAN COMMUNICATION SYSTEM
2302 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
CHECK CAN BUS LINES FOR SHORT CIRCUIT
CIRCUIT DESCRIPTION
The CAN bus lines are considered to be shorted when the resistance between terminals 6 (CANH) and 14
(CANL) of the DLC3 is below 54 W.
SymptomTrouble Area
Resistance between terminals 6 (CANH) and 14 (CANL) of
DLC3 is below 54 W.
Short in CAN bus lines
Skid control ECU
Steering sensor
Yaw rate sensor
WIRING DIAGRAM
05IR3-02
Page 1315 of 2572
G26199G28087
Skid Control ECU:
CANH
CANL
G24991G26210
Steering Sensor Wire Harness View:
S14
CANH
CANL
G24692 G25475G26209
Steering Sensor:
CANH CANL
05-21 14
- DIAGNOSTICSCAN COMMUNICATION SYSTEM
2304 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
3 INSPECT SKID CONTROL ECU WITH ACTUATOR(CANH - CANL)
(a) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified value
11 (CANH) - 25 (CANL)Ignition SW OFF108 to 132 W
NG REPLACE SKID CONTROL ECU WITH
ACTUATOR (SEE PAGE 32-37)
OK
4 CHECK CAN BUS LINES FOR SHORT(STEERING SENSOR - JUNCTION
CONNECTOR)
(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
S14-10 (CANH) -
S14-9 (CANL)Ignition SW OFF1 MW or more
HINT:
Check the wire harness connector connected to the junction
connector while disconnecting it.
NG REPAIR OR REPLACE STEERING SENSOR
SUB BUS LINE OR CONNECTOR (CAN-H,
CAN-L)
OK
5 INSPECT STEERING SENSOR(CANH - CANL)
(a) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified value
10 (CANH) - 9 (CANL)Ignition SW OFF108 to 132 W
NG REPLACE STEERING SENSOR
(SEE PAGE 32-48)
OK
Page 1316 of 2572
G26359
Yaw Rate Sensor Connector
Front View:
CANLCANH
Y1
- DIAGNOSTICSCAN COMMUNICATION SYSTEM
05-21 15
2305 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
6 CHECK CAN BUS LINES FOR SHORT(YAW RATE SENSOR SUB BUS LINE)
(a) Disconnect the connector (Y1) from the yaw rate sensor.
(b) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified value
Y1-3 (CANH) -
Y1-2 (CANL)Ignition SW OFF1 MW or more
HINT:
Check the wire harness connector connected to the junction
connector while disconnecting it.
NG REPAIR OR REPLACE YAW RATE SENSOR SUB
BUS LINE OR CONNECTOR (CAN-H, CAN-L)
OK
REPLACE YAW RATE SENSOR (SEE PAGE 32-46)
Page 1317 of 2572
G30962
1E
1G
2I2A IC4
S27 W Y
B WG
W BWL
WB
CANL CANH
CANLCANH
CANLCANH
CANL CANH BAT S14
Steering SensorJ16
J/CSkid Control ECU
With Actuator
D3
DLC310
311 12
1325
2
146
14
31 2 3 9
1
+BS Instrument Panel J/B
F7
FL BlockEngine Room J/BOBD
ECU-B
ALTBR
W-L
FL
MAIN
Battery1 J17
J/C
P
ES27 S27 IC4
3
11
2210
218
19
Y1
Yaw Rate Sensor
W B
IO213 IO212
BAT9
20
81A
B 1D9 10
10
P 16W
EIC35 VSC
STRG
VSC
STRG
YAW
DLC3
WSHORT PIN
WDLC3YAW 05-21 16
- DIAGNOSTICSCAN COMMUNICATION SYSTEM
2306 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
CHECK CAN BUS LINE (CAN-H) FOR SHORT TO +B
CIRCUIT DESCRIPTION
A short to +B is suspected in the CAN bus line when there is continuity between terminals 16 (BAT) and 6
(CANH) of the DLC3.
SymptomTrouble Area
There is continuity between terminals 16 (BAT) and 6
(CANH) of DLC3.
Short to +B in CAN bus line (CANH)
Skid control ECU
Steering sensor
Yaw rate sensor
WIRING DIAGRAM
05IR4-03
Page 1319 of 2572
C81825
12345678
9 10111213141516
G25474G26206
DLC3:
CANH
BATD3
C81825
12345678
9 10111213141516
G25474G26206
DLC3:
CANH
BATD3
C81825
12345678
9 10111213141516
G25474G26206
DLC3:
CANH
BATD3
05-21 18
- DIAGNOSTICSCAN COMMUNICATION SYSTEM
2308 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
3 CHECK CAN BUS LINE FOR SHORT TO +B(SKID CONTROL ECU, CAN-H)
(a) Disconnect the connector (S27) from the skid control
ECU.
(b) 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
OK REPLACE SKID CONTROL ECU WITH
ACTUATOR (SEE PAGE 32-37)
NG
4 CHECK CAN BUS LINE FOR SHORT TO +B(STEERING SENSOR, CAN-H)
(a) Reconnect the connector (S27) to the skid control ECU.
(b) Disconnect the connector (S14) from the steering sensor.
(c) 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
OK REPLACE STEERING SENSOR
(SEE PAGE 32-48)
NG
5 CHECK CAN BUS LINE FOR SHORT TO +B(YAW RATE SENSOR, CAN-H)
(a) Reconnect the connector (S14) to the steering sensor.
(b) Disconnect the connector (Y1) from the yaw rate sensor.
(c) 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
OK REPLACE YAW RATE SENSOR
(SEE PAGE 32-46)
NG
Page 1320 of 2572
G25476G26430
Junction Connector:
J16
CANH
CANL
E69126
Skid Control ECU
Connector Front
View:CANH
S27
+BS
- DIAGNOSTICSCAN COMMUNICATION SYSTEM
05-21 19
2309 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
6 CHECK CAN BUS LINE FOR SHORT TO +B(SKID CONTROL ECU - JUNCTION
CONNECTOR, CAN-H)
(a) Reconnect the connector (Y1) to the yaw rate sensor.
(b) Disconnect the wire harness connector (J16) from the
junction connector.
(c) Disconnect the connector (S27) from the skid control
ECU.
(d) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified value
S27-1 1 (CANH) -
S27-31 (+BS)Ignition SW OFF1 MW or more
NG REPAIR OR REPLACE CAN MAIN BUS LINE OR
CONNECTOR (SKID CONTROL ECU - JUNC-
TION CONNECTOR, CAN-H)
OK
Page 1321 of 2572
G24991G26210
Steering Sensor Wire Harness View:
S14
CANHBAT
05-2120
- DIAGNOSTICSCAN COMMUNICATION SYSTEM
2310 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
7 CHECK CAN BUS LINE FOR SHORT TO +B(STEERING SENSOR - JUNCTION
CONNECTOR, CAN-H)
(a) Disconnect the connector (S14) from the steering sensor.
(b) Measure the resistance according to the values in the
table below.
Standard:
Tester connectionConditionSpecified value
S14-10 (CANH) -
S14-3 (BAT)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)