2001 TOYOTA HIGHLANDER stop start

A85258
Wire Harness Side
C17
Canister
05-342
- DIAGNOSTICSSFI SYSTEM (2AZ-FE)
532 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
25 CHECK WIRE HARNESS AND CONNECTOR(PUMP MODULE - GROUND)
(a) Disconnect the C17 canister connector.
(b) Turn the ignition switch to OFF.
(c) Check the resistance between terminal 6 of the canister
connector and the body ground.
Result:
Test ResultsSuspected Trouble AreasProceed To
Below 1 WVacuum pumpA
10 kW or moreWire harness between vacuum pump and body
groundB
(d) Reconnect the canister connector.
A Go to step 30
B Go to step 32
26 INSPECT THROTTLE BODY ASSY
(a) Stop the engine.
(b) Disconnect the EVAP hose from the throttle body.
(c) Start the engine.
(d) Use your finger to confirm that the port of the throttle body has suction.
Result:
Test ResultsSuspected Trouble AreasProceed To
Suction appliedEVAP hose between throttle body and purge VSVA
No suctionThrottle bodyB
(e) Reconnect the EVAP hose.
A Go to step 33
B Go to step 34
27 CORRECTLY REINSTALL OR REPLACE FUEL TANK CAP
HINT:

When reinstalling the fuel tank cap, tighten it until a few click sounds are heard.

When replacing the fuel tank cap, use a fuel tank cap that meets OEM specifications, and tighten it
until a few click sounds are heard.
NEXT Go to step 37

05F2X-05
C81121D25472
SST
SST
- DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E/U140F)05-891
1081 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
HYDRAULIC TEST
1. PERFORM HYDRAULIC TEST
(a) Measure the line pressure.
NOTICE:

Perform the test at the normal operating ATF (Automatic Transmission Fluid) temperature 50
to 80°C (122 to 176°F).

The line pressure test should always be carried out in pairs. One technician should observe
the conditions of wheels or wheel stopper outside the vehicle while the other is doing the test.

Be careful to prevent SST's hose from interfering with the exhaust pipe.
(1) Warm up the ATF.
(2) Remove the test plug on the front side of the trans-
axle case and connect SST.
SST 09992-00095 (09992- 00231, 09992-00271)
(3) Fully apply the parking brake and chock the 4
wheels.
(4) Connect an OBD II scan tool or hand-held tester to
the DLC3.
(5) Start the engine and check idling speed.
(6) Keep your left foot pressing firmly on the brake ped-
al and shift into D position.
(7) Measure the line pressure when the engine is idling.
(8) Depress the accelerator pedal all the way down.
Quickly read the highest line pressure when engine
speed reaches stall speed.
(9) In the same way, do the test in R position.
Specified line pressure:
ConditionD position kPa (kgf / cm2, psi)R position kPa (kgf / cm2, psi)
Idling372 to 412 kPa
(3.8 to 4.2 kgf/cm2, 54 to 60 psi)
672 to 742 kPa
(6.9 to 7.6 kgf/cm2, 97 to 108 psi)
Stall test931 to 1,031 kPa
(9.5 to 10.5 kgf/cm2, 135 to 150 psi)
1,768 to 1,968 kPa
(18.0 to 20.0 kgf/cm2, 256 to 285 psi)
Evaluation:
ProblemPossible cause
If the measured values at all positions are higher
Line pressure control solenoid (SLT) defective

Regulator valve detective
If the measured values at all positions are lower

Line pressure control solenoid (SLT) defective

Regulator valve detective

Oil pump defective

U/D (Underdrive) direct clutch defective
If pressure is low in the D position only
D position circuit fluid leak

Forward clutch defective
If pressure is low in the R position only

R position circuit fluid leak

Direct clutch defective

1st and reverse brake defective

05EYX-02
F46772
Tire Pressure
Warning Reset Switch
Tire Pressure
Warning Lamp
Lamp Output Pattern:

Receipt of the Initialization Signal
Keep pressing
the switch for 3 sec.
1 Sec.

Failure of Initialization
0.25 Sec.
0.25 Sec. ON
OFF ON
OFF
1 Sec. 3 Sec. 05-736
- DIAGNOSTICSTIRE PRESSURE WARNING SYSTEM
926 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
INITIALIZATION
NOTICE:
This system requires initializing after changing tires or wheels, or after rotating the tires.
Be sure to adjust the tire air pressure to the specified value before initialization.
1. INITIALIZING THE TIRE PRESSURE WARNING SYS-
TEM
(a) Check and adjust the tire pressure to the specified value.
Specified Value
Front210 kpa (2.1 kgf/cm2, 30 psi)
Rear210 kpa (2.1 kgf/cm2, 30 psi)
(b) With the vehicle stopped, turn the ignition switch to the
ON position.
(c) Press and hold the tire pressure warning reset switch until
the tire pressure warning lamp blinks 3 times at 1 second
intervals.
HINT:
If the tire pressure warning lamp does not blink, perform the ini-
tialization again. (with the ignition switch off, perform the proce-
dure above starting at step 1-(b).)
(d) Drive the vehicle at 19 mph (30 km/h) or more, to com-
plete the initialization of the skid control ECU. (It takes
more than one hour.)
HINT:
If the tire pressure warning lamp blinks at 0.25 second intervals
while the vehicle is being driven, the initialization may have
failed. If so, perform the initialization again. (Turn the ignition
switch off and retry from step 1-(a).)
(e) After initialization is completed, the skid control ECU mon-
itors the tire pressure by using the wheel speed sensors.
(f) To verify the system has been initialized check the length
of time the tire pressure warning lamp is on after turning
the ignition switch to the ON position.
Not initialized: 4 sec.
Initialized: 3 sec.

05F2W-05
- DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E/U140F)05-889
1079 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
MECHANICAL SYSTEM TESTS
1. PERFORM MECHANICAL SYSTEM TESTS
(a) Measure the stall speed.
The object of this test is to check the overall performance of the transaxle and engine by measuring
the stall speeds in the D and R positions.
NOTICE:

Perform the test at the normal operating ATF (Automatic Transmission Fluid) temperature 50
to 80°C (122 to 176°F).

Do not continuously run this test for longer than 10 seconds.

To ensure safety, do this test in a wide, clear level area which provides good traction.

The stall test should always be carried out in pairs. One technician should observe the condi-
tions of wheels or wheel stoppers outside the vehicle while the other is doing the test.
(1) Chock the 4 wheels.
(2) Connect an OBD II scan tool or hand-held tester to the DLC3.
(3) Fully apply the parking brake.
(4) Keep your left foot pressed firmly on the brake pedal.
(5) Start the engine.
(6) Shift into the D position. Press all the way down on the accelerator pedal with your right foot.
(7) Quickly read the stall speed at this time.
Stall speed: 2,250
150 rpm
(8) Do the same test in the R position.
Stall speed: 2,250
150 rpm
Evaluation:
ProblemPossible cause
(a) Stall engine speed is low in D and R positions

Engine power output may be insufficient

Stator one-way clutch not operating properly
HINT: If the value is less than the specified value by 600 rpm or
more, the torque converter could be faulty.
(b) Stall engine speed is high in D position

Line pressure is too low

Forward clutch slipping

No. 2 one-way clutch not operating properly

U/D (Underdrive) clutch slipping
(c) Stall engine speed is high in R position

Line pressure is too low

Direct clutch slipping

1st and reverse brake slipping

U/D (Underdrive) clutch slipping
(d) Stall engine speed is high in D and R positions

Line pressure is too low

Improper fluid level

U/D (Underdrive) one-way clutch not operating properly

05-890- DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E/U140F)
1080 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
(b) Measure the time lag.
(1) When the shift lever is shifted while the engine is idling, there will be a certain time lapse or lag
before the shock can be felt. This is used for checking the condition of the direct clutch, forward
clutch, and 1st and reverse brake.
NOTICE:

Perform the test at the normal operating ATF temperature 50 to 80 °C (122 to 176 °F).

Be sure to allow 1 minute interval between tests.

Perform the test three times, and measure the time lags. Calculate the average value of the three
time lags.
(2) Connect an OBD II scan tool or hand-held tester to the DLC3.
(3) Fully apply the parking brake.
(4) Start and warm up the engine and check idle speed.
Idle speed: approx. 700 rpm (In N position and A/C OFF)
(5) Shift the lever from N to D position. Using a stop watch, measure the time from when the lever
is shifted until the shock is felt.
Time lag: N " D less than 1.2 seconds
(6) In the same way, measure the time lag for N " R.
Time lag: N " R less than 1.5 seconds
Evaluation (If N " D or N " R time lag is longer than the specified):
ProblemPossible cause
N " D time lag is longer

Line pressure is too low

Forward clutch worn

U/D (Underdrive) one-way clutch not operating
N " R time lag is longer

Line pressure is too low

Direct clutch worn

1st and reverse brake worn

U/D (Underdrive) one-way clutch not operating properly

A87978
C2
OCV
1
2ECM
OC1+
OC1- E9
E9 16
15 G-W
G-R
- DIAGNOSTICSSFI SYSTEM (2AZ-FE)
05-57
247 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
WIRING DIAGRAM
INSPECTION PROCEDURE
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.
Hand-held tester:
1 PERFORM ACTIVE TEST USING HAND-HELD TESTER (OCV OPERATION)
(a) Start the engine and warm it up.
(b) Connect the hand-held tester to the DLC3.
(c) Turn ON the ignition switch. Push the hand-held tester main switch.
(d) Enter the following menus: DIAGNOSIS
/ ENHANCED OBD II / ACTIVE TEST / VVT CTRL B1.
(e) Using the hand-held tester, operate the OCV and check the engine speed.
Standard:
Tester OperationSpecified Condition
OCV is OFFNormal engine speed
OCV is ONRough idle or engine stall
OK CHECK FOR INTERMITTENT PROBLEMS
(See page 05-9)
NG
2 INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSY (OCV) (See page
10-2)
OK: OCV has no contamination and moves smoothly.
NG REPLACE CAMSHAFT TIMING OIL CONTROL
VALVE ASSY
OK

05-62
- DIAGNOSTICSSFI SYSTEM (2AZ-FE)
252 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
TYPICAL MALFUNCTION THRESHOLDS
Deviation of valve timingMore than 5CA (Crankshaft Angle)
OCV activation63 times or more
Response of valve timing1 sec./CA or more (valve timing does not change)
If the difference between ºtargetº and ºactualº camshaft timing is larger than the specified value, the ECM
operates the VVT actuator.
The ECM then monitors the camshaft timing change for 5 seconds.
WIRING DIAGRAM
Refer to DTC P0010 on page 05-55.
INSPECTION PROCEDURE
HINT:
Abnormal bankProblem of advanced OCVProblem of retarded OCV
Bank 1P0011P0012
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.
Hand-held tester:
1 CHECK VALVE TIMING (See page 14-68)
(a) Check for a loose or jumped tooth of the timing chain.
OK: The matchmarks of the crankshaft pulley and camshaft pulley are aligned.
NG ADJUST VALVE TIMING (See page 14-68)
OK
2 PERFORM ACTIVE TEST USING HAND-HELD TESTER (OPERATE OF OCV)
(a) Connect the hand-held tester to the DLC3.
(b) Start the engine and warm it up.
(c) Turn ON the ignition switch. Push the hand-held tester main switch.
(d) Enter the following menus: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / VVT CTRL B1.
(e) Using the hand-held tester, operate the OCV and check the engine speed.
Standard:
Tester OperationSpecified Condition
OCV is OFFNormal engine speed
OCV is ONRough idle or engine stall
NG Go to step 4
OK

- DIAGNOSTICSSFI SYSTEM (2AZ-FE)(From August, 2004)
05-193
383 Author
: Date
:
OBD II MONITOR SPECIFICATIONS
Monitor Strategy
Required Sensors/ComponentsPump module
Frequency of OperationOnce per driving cycle
DurationWithin 15 minutes (varies with amount of fuel in tank)
MIL Operation2 driving cycles
Sequence of OperationNone
Typical Enabling Conditions
The monitor will run whenever these DTCs are not presentSee page 05-16.
EVAP key-off monitor runs when all of the following condi-
tions met:-
Atmospheric pressure525 to 825 mmHg (70 to 110 kPa)
Battery voltage10.5 V or more
Vehicle speedBelow 4 km/h (2.5 mph)
Ignition switchOFF
Engine conditionNot running
Time after engine stopped5 hours
FTP sensor malfunction (P0450, P0452, P0453)Not detected
Purge VSVNot operated by scan tool
Vent valveNot operated by scan tool
Leak detection pumpNot operated by scan tool
Both of the following conditions are met before IG switch
OFF:Condition 1 and 2
1. Duration that vehicle is driven5 min. or more
2. Purge flowExecuted
ECT4.4 to 35C (40 to 95F)
IAT4.4 to 35C (40 to 95F)
Example of re-start time
First time7 hours
Second time9 hours and 30 min.
Key-of f monitor sequence: 1 to 8
1. Atmospheric pressure
Next sequence is run if following condition met-
Atmospheric pressure change for 10 sec.Within 2.25 mmHg (0.3 kPa) for 1 sec.
2. First reference pressure
Next sequence is run if all of following conditions metCondition 1, 2 and 3
1. FTP when 4 sec. after reference pressure measurement-7.5 mmHg (-1 kPa) or less
2. Reference pressure-36.47 to -7.93 mmHg (-4.85 to -1.057 kPa)
3. Reference pressureSaturated
3. Vent valve stuck closed check
Next sequence is run if following condition met-
FTP change for 10 sec. after vent valve ON (closed)2.25 mmHg (0.3 kPa) or more
4. Vacuum introduction and leak
Next sequence is run if both of following conditions metCondition 1 and 2
1. Vacuum introduction timeWithin 15 min.
2. FTPFTP was saturated
5. Purge VSV stuck closed check
Next sequence is run if following condition met-
FTP change for 10 sec. after purge VSV ON (open)2.25 mmHg (0.3 kPa) or more