2001 TOYOTA HIGHLANDER diagnostic menu

05IS5-02
I38224
I38229
I38230
05-1766
- DIAGNOSTICSNAVIGATION SYSTEM
1956 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
NAVIGATION CHECK MODE (NAVI COLOR BAR CHECK)
HINT:

This mode checks the color display on the navigation ECU.

Illustrations may differ from the actual vehicle depending on the device settings and options. There-
fore, some detailed areas may not be shown exactly the same as on the actual vehicle.
1. Enter diagnostic mode (see page 05-1784).
2. Select ºNavigation Checkº from the ºDiagnosis
MENUº screen.
3. Select ºColor Bar Checkº from the ºNavigation
Checkº screen.
4. Check each color of the color bar when the ºNAVI Col-
or Bar Checkº screen is displayed.
HINT:
Colors will not be displayed full-screen as in ºDisplay Check
Modeº.

05IS6-02
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*1
*2
*3
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- DIAGNOSTICSNAVIGATION SYSTEM
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1957 Author
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2005 HIGHLANDER REPAIR MANUAL (RM1144U)
NAVIGATION CHECK MODE (PARTS INFORMATION)
HINT:

This mode displays product information on the navigation systems and discs.

Illustrations may differ from the actual vehicle depending on the device settings and options. There-
fore, some detailed areas may not be shown exactly the same as on the actual vehicle.
1. Enter diagnostic mode (see page 05-1784).
2. Select ºNavigation Checkº from the ºDiagnosis
MENUº screen.
3. Select ºParts Informationº from the ºNavigation
Checkº screen.
4. Check the navigation and disc information when the
ºParts Informationº screen is displayed.
DisplayContents
Navigation Manufacturer/*1Navigation ECU manufacturer name is displayed.
Navigation Version/*2Navigation ECU version is displayed.
Disc Manufacturer/*3Map disc manufacturer is displayed.
Disc Version/*4Map disc version is displayed.

05IS4-02
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- DIAGNOSTICSNAVIGATION SYSTEM
05-1765
1955 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
NAVIGATION CHECK MODE (VEHICLE SENSORS)
HINT:

This mode checks the vehicle signal status to the navigation ECU.

Illustrations may differ from the actual vehicle depending on the device settings and options. There-
fore, some detailed areas may not be shown exactly the same as on the actual vehicle.
1. Enter diagnostic mode (see page 05-1784).
2. Select ºNavigation Checkº from the ºDiagnosis
MENUº screen.
3. Select ºVehicle Sensorsº from the ºNavigation
Checkº screen.
4. Check all the signals and sensors when vehicle sig-
nal information is displayed.
HINT:
This screen is updated once per second when input signals to
the vehicle are changed.

05F45-05
01 BANK 1 - SENSOR 1
01 BANK 1 - SENSOR 2
01 BANK 2 - SENSOR 1
01 BANK 2 - SENSOR 2
A21190
O2S TEST RESULT Screen 05-22
- DIAGNOSTICSSFI SYSTEM (2AZ-FE)
212 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
O2S TEST RESULT
1. INTRODUCTION
The O2S TEST RESULT refers to the results of the engine con-
trol module (ECM) when it monitors the oxygen sensor (O2S),
and it can be read using the hand-held tester or the generic
OBD II scan tool. Based on this, you can find the O2S's condi-
tions.
The ECM monitors the O2S for various data. You can read the
monitor result (TEST DATA) of each monitor item using the O2S
TEST RESULT. However, the output value of the TEST DATA
is the latest ºsnapshotº value that is taken after monitoring and
therefore it is not dynamic.
In this repair manual, the description of the O2S TEST RESULT
(for O2S related DTCs) are written in a table.
This table consists of 5 items:
(1) TEST ID (a code applied to each TEST DATA)
(2) Description of TEST DATA
(3) Conversion Factor (When conversion factor has a
value written in the table, multiply the TEST DATA
value appearing on the scan tool by the conversion
factor value. The result will be the required value.)
(4) Unit
(5) Standard Value
If the TEST DATA value appearing on the scan tool is out of the
standard value, the O2S is malfunctioning. If it is within the stan-
dard value, the O2S is functioning normally. However, if the val-
ue is on the borderline of the standard value, the O2S may mal-
function very soon.
2. HOW TO READ O2S TEST RESULT USING HAND-
HELD TESTER
(a) Connect the hand-held tester to the DLC3.
(b) On the tester screen, select the following menus: DIAG-
NOSIS / CARB OBDII / O2S TEST RESULT. A list of the
O2S equipped on the vehicle will be displayed.

+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) 05-304
- DIAGNOSTICSSFI SYSTEM (2AZ-FE)
494 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
(a) Perform the ACTIVE TEST A/F CONTROL operation.
HINT:
The A/F CONTROL operation lowers the injection volume by 12.5% or increases the injection volume by
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 idling (press the right or left button).
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.

- DIAGNOSTICSSFI SYSTEM (2AZ-FE)
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495 Author
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2005 HIGHLANDER REPAIR MANUAL (RM1144U)
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:

DTC P2A00 may be also detected, when the air fuel ratio is stuck rich or lean.

A low A/F sensor voltage could be caused by a RICH air-fuel mixture. Check for conditions that would
cause the engine to run with a RICH air-fuel mixture.

A high A/F sensor voltage could be caused by a LEAN air-fuel mixture. Check for conditions that would
cause the engine to run with a LEAN air-fuel mixture.

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 determine 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.
1 CHECK OTHER DTC OUTPUT (IN ADDITION TO A/F SENSOR DTC)
(a) Read the DTC using the hand-held tester or the OBD II scan tool.
Result:
DisplayProceed to
Only P2A00 is outputA
P2A00 and other codes is outputB
HINT:
If any other codes besides P2A00 is output, perform the troubleshoot on that DTC before.
B GO TO RELEVANT DTC CHART
(See page 05-48)
A
2 READ VALUE OF OBD II SCAN TOOL OR HAND-HELD TESTER (OUTPUT VOLT-
AGE OF A/F SENSOR)
(a) Connect the hand-held tester or the OBD II scan tool to the DLC3.
(b) Warm up the A/F sensor (bank 1 sensor 1) by running the engine at 2,500 rpm for approximately 90
seconds.
(c) Read the A/F sensor voltage output on the the hand-held tester or OBD II scan tool.
(d) Hand-held tester only:
On the hand-held tester, enter the following menus: DIAGNOSIS / ENHANCED OBD II / SNAPSHOT
/ MANUAL SNAPSHOT / USER DATA. Read the values.
(e) Select ºAFS B1 S1
/ ENGINE SPDº and press YES.
(f) Monitor the A/F sensor voltage carefully.
(g) Check the A/F sensor voltage output under the following conditions:
(1) Allow the engine to idle for 30 seconds.
(2) Run the engine at approximately 2,500 rpm. Do not suddenly change the rpm.
(3) Raise the engine speed to 4,000 rpm and quickly release the accelerator pedal so that the throttle
is fully closed.

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