2001 TOYOTA HIGHLANDER Service Repair Manual

length tire pressure reset oil type fuel tank removal service interval reset clock reset

Page 1697 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual A90296
MRELOX1B
31HT1BECM
FL
Main
BatteryEngine
Room R/B
No. 2
J2
J/C W-B B-W
4H10
Heated Oxygen Sensor
BR
BR A
A 1
12D
EFI
Relay35
2 2
5
31Engine
Room
J/BB
EEE5 E8
E8
8 21
29
2
O1B- Shielded
E91
E1 A

Page 1698 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual A58686
Vehicle speed
60 km/h
(38 mph)
Ignition Switch OFFOnce
40 seconds
or more
Warm up
(engine coolant
temperature
is more than 75C (167F)) 10 seconds
or moreTwice
40 seconds
or more12 times

A58686
Vehicle speed
60 km/h
(38 mph)
Ignition Switch OFFOnce
40 seconds
or more
Warm up
(engine coolant
temperature
is more than 75C (167F)) 10 seconds
or moreTwice
40 seconds
or more12 times
40 seconds
or more
(a), (b)(d)
(e)
Idling (c)(d)
(e)(d)
(f)
10 seconds
or more10 seconds
or more 05-124
- DIAGNOSTICSSFI SYSTEM (2AZ-FE)
314 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
CONFIRMATION DRIVING PATTERN (P0136)
(a) Connect the hand-held tester to the DLC3.
(b) Switch the hand-held tester from normal mode to check (test) mode (see page 05-40).
(c) Start the engine and warm it up until the engine coolant temperature becomes more than 75C.
(d) Drive the vehicle at 60 km/h (38 mph) or more for 40 seconds or more.
(e) Let the engine idle for 10 seconds or more.
(f) Perform steps (d) to (e) 12 times.
HINT:
If a malfunction exists, the MIL will illuminate during step (f).
NOTICE:
If the conditions in this test are not strictly followed, detection of a malfunction will not occur. If you
do not have a hand-held tester, turn the ignition switch OFF after performing steps from (c) to (f), then
perform steps from (c) to (f) again.
CONFIRMATION DRIVING PATTERN (P0137)
Warm up the engine and run the engine at 60 km/h (38 mph) for 7 minutes.
CONFIRMATION DRIVING PATTERN (P0138)
Warm up the engine and run the engine at idle for 30 seconds.
INSPECTION PROCEDURE
HINT:
Hand-held tester only:
It is possible the malfunctioning area can be found using the ACTIVE TEST A/F CONTROL operation. The
A/F CONTROL operation can determine if the A/F sensor, heated oxygen sensor or other potential trouble
areas are malfunctioning or not.
(a) Perform the ACTIVE TEST A/F CONTROL operation.
HINT:
The A/F CONTROL operation lowers the injection volume 12.5 % or increases the injection volume 25 %.
(1) Connect the hand-held tester to the DLC3 on the vehicle.
(2) Turn the ignition switch ON.
(3) Warm up the engine by running the engine at 2,500 rpm for approximately 90 seconds.
(4) Enter the following menus: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / A/F CONTROL.
(5) Perform the A/F CONTROL operation with the engine idle (press the right or left button).

Page 1699 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual +25 %
-12.5 %
More than 3.35 V
Less than 3.0 V
Case 1
Case 2
Case 3
Case 4
Output voltage of A/F sensor
(sensor 1)
Injection volume
Output voltage
Output voltage of heated oxygen
sensor (sensor 2)Ma

+25 %
-12.5 %
More than 3.35 V
Less than 3.0 V
Case 1
Case 2
Case 3
Case 4
Output voltage of A/F sensor
(sensor 1)
Injection volume
Output voltage
Output voltage of heated oxygen
sensor (sensor 2)Main suspect
trouble area
OK
+25 %
-12.5 %
More than 3.35 V
Less than 3.0V
Injection volume
Output voltage
+25 %
-12.5 %
More than 0.55 V
Less than 0.4V
Injection volume
Output voltage
A/F sensor
(A/F sensor, heater, A/F sen-
sor circuit)
+25 %
-12.5 %
More than 0.55 V
Less than 0.4V
Injection volume
Output voltage
+25 %
-12.5 %
Injection volume
Output voltage
NG
+25 %
-12.5 %
Injection volume
Output voltage
NG
+25 %
-12.5 %
Injection volume
Output voltage
NG
+25 %
-12.5 %
Injection volume
Output voltage
NGExtremely rich or lean actual
air-fuel ratio
(Injector, fuel pressure, gas
leakage in exhaust system,
etc.) OK
OK
OK
Almost
No reaction
Almost
No reaction
Almost
No reaction Almost
No reaction
'
Heated oxygen sensor
(heated oxygen sensor,
heater, heated oxygen sensor
circuit)
- DIAGNOSTICSSFI SYSTEM (2AZ-FE)
05-125
315 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
Result:
A/F sensor reacts in accordance with increase and decrease of injection volume:
+25 % " rich output: Less than 3.0 V
-12.5 % " lean output: More than 3.35 V
Heated oxygen sensor reacts in accordance with increase and decrease of injection volume:
+25 % " rich output: More than 0.55 V
-12.5 % " lean output: Less than 0.4 V
NOTICE:
The A/F sensor output has a few seconds of delay and the heated oxygen sensor output has about
20 seconds of delay at maximum.
The following A/F CONTROL procedure enables a technician to check and graph the voltage outputs of both
the A/F sensor and the heated oxygen sensor.
For displaying the graph, enter ºACTIVE TEST / A/F CONTROL / USER DATAº, select ºAFS B1S1 and O2S
B1S2º by pressing ºYESº and push ºENTERº. Then press ºF4º.
HINT:
Read freeze frame data using the hand-held tester or the OBD II scan tool. Freeze frame data records the
engine conditions when a malfunction is detected. When troubleshooting, freeze frame data can help deter-
mine if the vehicle was running or stopped, if the engine was warmed up or not, if the air-fuel ratio was lean
or rich, and other data from the time the malfunction occurred.

Page 1700 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual A81695
E8
ECM
O1B-
OX1B
HT1B
05-126
- DIAGNOSTICSSFI SYSTEM (2AZ-FE)
316 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
1 CHECK OTHER DTC OUTPUT
(a) Read the DTC using the hand-held tester

Page 1701 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual A80018
H10
Heated Oxygen Sensor
E1 OX
+B
- DIAGNOSTICSSFI SYSTEM (2AZ-FE)
05-127
317 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
4 INSPECT HEATED OXYGEN SENSOR (CHECK FOR SHORT)
(a) Dis

Page 1702 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual A80018
H10
Heated Oxygen Sensor
+B HT
E1 OX
B60778
5
12 312
5
3
05-128
- DIAGNOSTICSSFI SYSTEM (2AZ-FE)
318 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
7 INSPECT HEATED OXYGEN SENSOR (HE

Page 1703 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual A80019
A81695A92146
Wire Harness Side
HT
+B
OX
E1
HT1B
OX1B
E8
ECM H10
Heated Oxygen Sensor
A90346
Reference (Bank 1 Sensor 2 System Drawing)
Heater
Sensor
Duty
Control ECM
From
Battery
EFI NO. 1
F

Page 1704 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual 05-130
- DIAGNOSTICSSFI SYSTEM (2AZ-FE)
320 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
REPLACE HEATED OXYGEN SENSOR
10 PERFORM CONFIRMATION DRIVING PATTERN
HINT:
Clear all DTCs prior to

Load next 8 pages

Page: < prev 1-10 ... 1665-1672 1673-1680 1681-1688 1689-1696 1697-1704 1705-1712 1713-1720 1721-1728 1729-1736 ... 2576 next >

wheel bolts relay manual radio set service interval seat adjustment hood open