2007 TOYOTA SIENNA Service Repair Manual

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Page 345 of 3000

TOYOTA SIENNA 2007 Service Repair Manual 2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–19
ES
(f) Enter the following menus: DIAGNOSIS /
ENHANCED OBD II / VIN.
A103813E01

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TOYOTA SIENNA 2007 Service Repair Manual ES–202GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
A103814E03

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TOYOTA SIENNA 2007 Service Repair Manual 2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–21
ES
A103815

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TOYOTA SIENNA 2007 Service Repair Manual ES–222GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
CHECKING MONITOR STATUS
The purpose of the monitor result (mode 06) is to allow
access to the results for on-board diagnostic monitoring tests

ES–222GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
CHECKING MONITOR STATUS
The purpose of the monitor result (mode 06) is to allow
access to the results for on-board diagnostic monitoring tests
of specific components/systems that are not continuously
monitored. Examples are catalyst, evaporative emission
(EVAP) and thermostat.
The monitor result allows the OBD II scan tool to display the
monitor status, test value, minimum test limit and maximum
test limit. These data are displayed after the vehicle has been
driven to run the monitor.
When the test value is not between the minimum test limit
and maximum test limit, the ECM (PCM) interprets this as a
malfunction. When the component is not malfunctioning, if the
difference of the test value and test limit is very small, the
component will malfunction in the near future.
Perform the following instructions to view the monitor status.
Although the Lexus diagnostic tester is used in the following
instructions, it can be checked using a generic OBD II scan
tool. Refer to your scan tool operator's manual for specific
procedures.
1. PERFORM MONITOR DRIVE PATTERN
The monitor results and test values can be checked with
the OBD II scan tool or the intelligent tester. The engine
control module (ECM) monitors the emissions-related
components such as the thermostat, catalyst converter
and evaporative emissions (EVAP), and determines
whether they are functioning normally or not. When
monitoring is finished, the ECM stores the monitor
results and the test values. The monitor result indicates
whether the component is functioning normally or not.
The test value is the value that was used to determine
the monitor result. If the test value is outside of the test
limit (malfunction criterion), the ECM determines the
component is malfunctioning. Some emissions-related
components have multiple test values to determine
monitor result. If one of these test values is outside of the
test limit, the ECM determines the component is
malfunctioning.
(a) Connect the intelligent tester to the DLC3.
(b) Start the engine and turn the tester on.
(c) Clear the DTCs.
(d) Run the vehicle in accordance with the applicable
drive pattern described in READINESS MONITOR
DRIVE PATTERN (See page ES-22). DO NOT turn
the ignition switch off.
NOTICE:
The test results will be lost if the ignition switch
is turned off.

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TOYOTA SIENNA 2007 Service Repair Manual 2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–23
ES
2. ACCESS MONITOR RESULT
(a) Select the following menus on the intelligent tester:
DIAGNOSIS, ENHANCED OBDII, MONITOR INFO
and MONITOR RESULT.

2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–23
ES
2. ACCESS MONITOR RESULT
(a) Select the following menus on the intelligent tester:
DIAGNOSIS, ENHANCED OBDII, MONITOR INFO
and MONITOR RESULT. The monitor status
appears after the component name.
• INCMP: The component has not been monitored
yet.
• PASS: The component is functioning normally.
• FAIL: The component is malfunctioning.
(b) Confirm that the component is either PASS or FAIL.
(c) Select the component and press ENTER. The
accuracy test value appears if the monitor status is
either PASS or FAIL.
HINT:
The monitor result might be PASS on rare
occasions even if the Malfunction Indicator Lamp
(MIL) is illuminated. This indicates that the system
was malfunctioning in the previous driving cycle.
This might be caused by an intermittent problem.
3. CHECK COMPONENT STATUS
(a) Compare the test value with the minimum test limit
(MIN LIMIT) and maximum test limit (MAX LIMIT).
(b) If the test value is between the minimum test limit
and maximum test limit, the component is
functioning normally. If not, the component is
malfunctioning. The test value is usually significantly
higher or lower than the test limit. If the test value is
on the borderline of the test limit, the component will
malfunction in the near future.
HINT:
The monitor result might be PASS on rare occasions even if
the Malfunction Indicator Lamp (MIL) is illuminated. This
indicates that the system was malfunctioning in the previous
driving cycle. This might be caused by an intermittent
problem.
4. MONITOR RESULT INFORMATION
If you use a generic scan tool, multiply the test value by
the scaling value listed below.
A/F Sensor Bank 1
HO2S Bank 1 Sensor 2
A/F Sensor Bank 2
Monitor ID Test ID Scaling Unit Description
$01 $8E Multiply by 0.0003 No dimension A/F sensor deterioration level
$01 $91 Multiply by 0.004 mA A/F sensor current
Monitor ID Test ID Scaling Unit Description
$02 $07 Multiply by 0.001 V Minimum sensor voltage
$02 $08 Multiply by 0.001 V Maximum sensor voltage
$02 $8F Multiply by 0.003 g Maximum oxygen storage capacity
Monitor ID Test ID Scaling Unit Description
$05 $8E Multiply by 0.0003 No dimension A/F sensor deterioration level
$05 $91 Multiply by 0.004 mA A/F sensor current

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TOYOTA SIENNA 2007 Service Repair Manual ES–242GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
HO2S Bank 2 Sensor 2
Catalyst-Bank 1
Catalyst-Bank 2
EVAP
Misfire
Monitor ID Test ID Scaling Unit Description
$06 $07 Multiply by 0.001 V Minimu

ES–242GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
HO2S Bank 2 Sensor 2
Catalyst-Bank 1
Catalyst-Bank 2
EVAP
Misfire
Monitor ID Test ID Scaling Unit Description
$06 $07 Multiply by 0.001 V Minimum sensor voltage
$06 $08 Multiply by 0.001 V Maximum sensor voltage
$06 $8F Multiply by 0.003 g Maximum oxygen storage capacity
Monitor ID Test ID Scaling Unit Description
$21 $A9 Multiply by 0.003 No dimension Oxygen storage capacity of catalyst-bank 1
Monitor ID Test ID Scaling Unit Description
$22 $A9 Multiply by 0.003 No dimension Oxygen storage capacity of catalyst-bank 2
Monitor ID Test ID Scaling Unit Description
$3D $C9 Multiply by 0.001 kPa Test value for small leak (P0456)
$3D $CA Multiply by 0.001 kPa Test value for gross leak (P0455)
$3D $CB Multiply by 0.001 kPa Test value for leak detection pump OFF stuck (P2401)
$3D $CD Multiply by 0.001 kPa Test value for leak detection pump ON stuck (P2402)
$3D $CE Multiply by 0.001 kPa Test value for vent valve OFF stuck (P2420)
$3D $CF Multiply by 0.001 kPa Test value for vent valve ON stuck (P2419)
$3D $D0 Multiply by 0.001 kPa Test value for reference orifice low flow (P043E)
$3D $D1 Multiply by 0.001 kPa Test value for reference orifice high flow (P043F)
$3D $D4 Multiply by 0.001 kPa Test value for purge VSV close stuck (P0441)
$3D $D5 Multiply by 0.001 kPa Test value for purge VSV open stuck (P0441)
$3D $D7 Multiply by 0.001 kPa Test value for purge flow insufficient (P0441)
Monitor ID Test ID Scaling Unit Description
$A1 $0B Multiply by 1 TimeExponential Weighted Moving Average (EWMA) misfire for all
cylinders: Misfire counts for last ten driving cycles-Total
$A1 $0C Multiply by 1 TimeMisfire rate for all cylinders: Misfire counts for last/current driving
cycles-Total
$A2 $0B Multiply by 1 TimeEWMA misfire for cylinder 1: Misfire counts for last ten driving cycles-
To t a l
$A2 $0C Multiply by 1 TimeMisfire rate for cylinder 1: Misfire counts for last/current driving cycle-
To t a l
$A3 $0B Multiply by 1 TimeEWMA misfire for cylinder 2: Misfire counts for last ten driving cycles-
To t a l
$A3 $0C Multiply by 1 TimeMisfire rate for cylinder 2: Misfire counts for last/current driving cycle-
To t a l
$A4 $0B Multiply by 1 TimeEWMA misfire for cylinder 3: Misfire counts for last ten driving cycles-
To t a l
$A4 $0C Multiply by 1 TimeMisfire rate for cylinder 3: Misfire counts for last/current driving cycle-
To t a l
$A5 $0B Multiply by 1 TimeEWMA misfire for cylinder 4: Misfire counts for last ten driving cycles-
To t a l
$A5 $0C Multiply by 1 TimeMisfire rate for cylinder 4: Misfire counts for last/current driving cycle-
To t a l
$A6 $0B Multiply by 1 TimeEWMA misfire for cylinder 5: Misfire counts for last ten driving cycles-
To t a l
$A6 $0C Multiply by 1 TimeMisfire rate for cylinder 5: Misfire counts for last/current driving cycle-
To t a l
$A7 $0B Multiply by 1 TimeEWMA misfire for cylinder 6: Misfire counts for last ten driving cycles-
To t a l

Page 351 of 3000

TOYOTA SIENNA 2007 Service Repair Manual 2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–25
ES
Rear Oxygen Sensor Heater
$A7 $0C Multiply by 1 TimeMisfire rate for cylinder 6: Misfire counts for last/current driving cycle-
To t a l
Monitor

Page 352 of 3000

TOYOTA SIENNA 2007 Service Repair Manual ES–262GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
READINESS MONITOR DRIVE
PAT T E R N
1. PURPOSE OF READINESS TESTS
• The On-Board Diagnostic (OBD II) system is
designed to monitor the perfo

ES–262GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
READINESS MONITOR DRIVE
PAT T E R N
1. PURPOSE OF READINESS TESTS
• The On-Board Diagnostic (OBD II) system is
designed to monitor the performance of emission-
related components, and indicate any detected
abnormalities with DTCs (Diagnostic Trouble Codes).
Since various components need to be monitored in
different driving conditions, the OBD II system is
designed to run separate monitoring programs called
Readiness Monitors.
• The intelligent tester's software must be version 9.0 or
newer to view the Readiness Monitor status. To view
the status, select the following menu items:
DIAGNOSIS / ENHANCED OBD II / MONITOR INFO
/ MONITOR STATUS.
• When the Readiness Monitor status reads COMPL
(complete), the necessary conditions have been met
for running the performance tests for that Readiness
Monitor.
• A generic OBD II scan tool can also be used to view
the Readiness Monitor status.
HINT:
Many Inspection and Maintenance (I/M) programs
require a vehicle's Readiness Monitor status to show
COMPL before beginning emission tests.
The Readiness Monitor will be reset to INCMPL
(incomplete) if:
• The ECM has lost battery power or broken a fuse.
• DTCs have been cleared.
• The conditions for running the Readiness Monitor
have not been met.
If the Readiness Monitor status shows INCMPL, follow
the appropriate Readiness Monitor Drive Pattern to
change the status to COMPL.
CAUTION:
Strictly observe posted speed limits, traffic laws, and
road conditions when performing these drive
patterns.
NOTICE:
These drive patterns represent the fastest method of
satisfying all conditions necessary to achieve
complete status for each specific Readiness
Monitor.
In the event of a drive pattern being interrupted
(possibly due to factors such as traffic conditions),
the drive pattern can be resumed. In most cases, the
Readiness Monitor will still achieve complete status
upon completion of the drive pattern.
To ensure completion of the Readiness Monitors,
avoid sudden changes in vehicle load and speed
(driving up and down hills and/or sudden
acceleration).

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