sensor TOYOTA SIENNA 2007 Service Repair Manual

ES–3162GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
MONITOR DESCRIPTION
The battery supplies electricity to the ECM even when the ignition switch is off. This power allows the
ECM to store data such as DTC history, freeze frame data and fuel trim values. If the battery voltage falls
below a minimum level, these memories are cleared and the ECM determines that there is a malfunction
in the power supply circuit. When the engine is next started, the ECM illuminates the MIL and sets the
DTC.
HINT:
If DTC P0560 is set, the ECM does not store other DTCs.
MONITOR STRATEGY
TYPICAL ENABLING CONDITIONS
TYPICAL MALFUNCTION THRESHOLDS
WIRING DIAGRAM
DTC P0560 System Voltage
DTC No. DTC Detection Condition Trouble Area
P0560Open in ECM back up power source circuit (1 trip
detection logic)• Open in back up power source circuit
• EFI No. 1 fuse
•ECM
Related DTCs P0560: ECM system voltage
Required Sensors / Components (Main) ECM
Required Sensors / Components (Related) -
Frequency of Operation Continuous
Duration 3 seconds
MIL Operation Immediate (MIL illuminated after next engine start)
Sequence of Operation None
The monitor will run whenever these DTCs are not
presentNone
Stand-by RAM Initialized
ECM power source Less than 3.5 V
A118508E18

ES–3202GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
DESCRIPTION
The ECM continuously monitors its own internal memory status, internal circuits, and output signals
transmitted to the throttle actuator. This self-check ensures that the ECM is functioning properly. If any
malfunction is detected, the ECM sets the appropriate DTC and illuminates the MIL.
The ECM memory status is diagnosed by internal mirroring of the main CPU and the sub CPU to detect
Random Access Memory (RAM) errors. The two CPUs also perform continuous mutual monitoring. The
ECM illuminates the MIL and sets a DTC if: 1) outputs from the two CPUs are different or deviate from the
standards, 2) the signals sent to the throttle actuator deviate from the standards, 3) a malfunction is found
in the throttle actuator supply voltage, and 4) any other ECM malfunction is found.
MONITOR STRATEGY
TYPICAL ENABLING CONDITIONS
TYPICAL MALFUNCTION THRESHOLDS
ECM RAM errors:
INSPECTION PROCEDURE
Read freeze frame data using the intelligent tester. Freeze frame data records the engine condition when
malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was
moving or stationary, 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.
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch to the ON position.
(c) Turn the tester on.
(d) Select the following menu items: DIAGNOSIS /
ENHANCED OBD II / DTC INFO / CURRENT CODES.
(e) Read DTCs.
DTC P0604Internal Control Module Random Access Mem-
ory (RAM) Error
DTC No. DTC Detection Condition Trouble Area
P0604 ECM internal error (1 trip detection logic) ECM
Related DTCs P0604: ECM RAM error
Required Sensors/Components (Main) ECM
Required Sensors/Components (Related) -
Frequency of Operation Continuous
Duration 16 seconds
MIL Operation Immediate
Sequence of Operation None
Monitor runs whenever following DTCs not present None
RAM mirror check Fail
1CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0604)

ES–3222GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
DESCRIPTION
The ECM continuously monitors its internal processors (CPUs), A/F sensor transistors and heated oxygen
sensor (HO2S) transistors. This self-check ensures that the ECM is functioning properly. These are
diagnosed by internal "mirroring" of the main and sub CPUs to detect the processors error. If outputs from
the processors deviate from the standards, the ECM will illuminate the MIL and set a DTC immediately.
MONITOR STRATEGY
TYPICAL ENABLING CONDITIONS
TYPICAL MALFUNCTION THRESHOLDS
INSPECTION PROCEDURE
(a) Allow the engine to idle.
(b) Check for exhaust gas leak around the heated oxygen
sensor.
OK:
No leak from the heated oxygen sensor.
NG
DTC P0606 ECM / PCM Processor
DTC DTC Setting Condition Trouble Area
P0606• ECM CPUs malfunction
• A/F sensor transistors malfunction
• HO2S transistors malfunction• Exhaust gas leak
•HO2 Sensor
•ECM
Related DTC P0606: ECM range check
Required sensors/Components (main) ECM
Required sensors/Components (sub)APP sensor, TP sensor, Brake switch, Cruise control, A/F sensor,
HO2 sensor
Frequency of Operation Continuous
Duration 60 seconds
MIL Operation Immediate
Sequence of Operation None
Monitor runs whenever the following DTCs are not present None
Engine Running
Estimated A/F sensor temperature 450 to 800
C (842 to 1472F)
Estimated HO2S temperature 450 to 800
C (842 to 1472F)
Difference of main APP and sub APP 0.3 V or more
Difference of main TP and sub TP 0.3 V or more
Difference of main brake switch signal and sub brake switch signal Different
Cruise control Fail
A/F sensor transistors Fail
HO2S transistors Fail
1INSPECT FOR EXHAUST GAS LEAK
REPAIR OR REPLACE EXHAUST GAS
LEAKAGE POINT

2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–323
ES
OK
(a) Connect the intelligent tester to the DLC3.
(b) Start the engine and turn the tester on.
(c) Warm up the engine at an engine speed of 2500rpm for
approximately 90 seconds.
(d) Enter the following menus: DIAGNOSIS / ENHANCED II
/ ACTIVE TEST / A/F CONTROL.
(e) Perform the A/F CONTROL operation with the engine in
an idling condition (press the RIGHT or LEFT button to
change the fuel injection volume).
(f) Monitor the voltage outputs of the HO2 sensors (O2S
B1S2) displayed on the tester.
HINT:
• The A/F CONTROL operation lowers the fuel injection
volume by 12.5% or increases the injection volume by
25%.
• Each sensor reacts in accordance with increases in
the fuel injection volume.
Standard voltage
Result
B
C
A
2CHECK HEATED OXYGEN SENSOR
A142077E01
Tester Display (Sensor) Injection Volume Voltage
O2S B1S2-12.5% Less than 0.2 V
+25% More than 0.8 V
Result Proceed to
OK A
NG (for 2WD model) B
NG (for 4WD model) C
REPLACE HEATED OXYGEN SENSOR (See
page EC-32)
REPLACE HEATED OXYGEN SENSOR (See
page EC-38)

2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–325
ES
DESCRIPTION
The ECM continuously monitors its main and sub CPUs. This self-check ensures that the ECM is
functioning properly. If outputs from the CPUs are different and deviate from the standards, the ECM will
illuminate the MIL and set a DTC immediately.
The ECM also monitors the cruise control cancel circuit. If this circuit malfunctions, the ECM will set a
DTC immediately (MIL is not illuminated).
NOTICE:
First check for an exhaust gas leak around the HO2S if P0606 is present. An exhaust gas leak
generates noise in the HO2S output. The ECM may interpret this as an HO2S transistor
malfunction.
MONITOR STRATEGY
TYPICAL ENABLING CONDITIONS
TYPICAL MALFUNCTION THRESHOLDS
INSPECTION PROCEDURE
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch to the ON position.
(c) Turn the tester on.
(d) Clear the DTC.
(e) Turn the ignition switch off.
(f) Disconnect the battery negative terminal and wait for 1
minute.
(g) Connect the battery negative terminal.
DTC P0607 Control Module Performance
DTC No. DTC Detection Condition Trouble Area
P0607• ECM main CPU error
• ECM sub CPU error
• Cruise control cancel circuit malfunctionECM
Related DTC P0607: ECM CPU malfunction
Required sensors/Components ECM
Frequency of Operation Continuous
Duration Within 1 second
MIL Operation Immediate
Sequence of Operation None
Monitor runs whenever the following DTCs are not present None
Either of the following conditions is met: Condition A or B
A. All of the following conditions are met: Conditions (a), (b) and (c)
(a) CPU reset 1 time or more
(b) Learned TP - learned APP 0.4 V or more
(c) Throttle actuator OFF
B. CPU reset 2 times or more
1CHECK WHETHER DTC OUTPUT RECURS (IN ADDITION TO DTC P0607)

2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–327
ES
MONITOR DESCRIPTION
While the engine is being cranked, the positive battery voltage is applied to terminal STA of the ECM.
If the ECM detects the Starter Control (STA) signal while the vehicle is being driven, it determines that
there is a malfunction in the STA circuit. The ECM then illuminates the MIL and sets the DTC.
This monitor runs when the vehicle is driven at 12.4 mph (20 km/h) for over 20 seconds.
MONITOR STRATEGY
TYPICAL ENABLING CONDITIONS
TYPICAL MALFUNCTION THRESHOLDS
DTC P0617 Starter Relay Circuit High
DTC No. DTC Detection Condition Trouble Area
P0617When conditions (a), (b) and (c) are met, positive (+B)
battery voltage 10.5 V or more is applied to ECM for 20
seconds (1 trip detection logic):
(a) Vehicle speed more than 12.4 mph (20 km/h)
(b) Engine speed more than 1000 rpm
(c) STA signal ON• Park/Neutral Position (PNP) switch
• Starter relay circuit
• Ignition switch
•ECM
Related DTCs P0617: Starter signal
Required Sensors / Components (Main) STARTER relay, PNP switch, Clutch start switch and Ignition switch
Required Sensors / Components (Related) Vehicle Speed Sensor (VSS), Crankshaft Position (CKP) sensor
Frequency of Operation Continuous
Duration 20 seconds
MIL Operation Immediate
Sequence of Operation None
The monitor will run whenever these DTCs are not
presentNone
Battery voltage 10.5 V or more
Vehicle speed 12.43 mph (20 km/h) or more
Engine speed 1000 rpm or more
Starter signal ON

ES–3322GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
DESCRIPTION
DTC P0630 is set when the Vehicle Identification Number (VIN) is not stored in the Engine Control Module
(ECM) or the input VIN is not accurate. Input the VIN with the intelligent tester.
MONITOR STRATEGY
TYPICAL ENABLING CONDITIONS
TYPICAL MALFUNCTION THRESHOLDS
COMPONENT OPERATING RANGE
INSPECTION PROCEDURE
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch to the ON position and turn the
tester on.
(c) Select the following menu items: DIAGNOSIS /
ENHANCED OBD II / DTC INFO / CURRENT CODES.
(d) Read the DTCs.
Result
DTC P0630 VIN not Programmed or Mismatch - ECM / PCM
DTC No. DTC Detection Condition Trouble Area
P0630• VIN is not stored in ECM
• Input VIN in ECM is not accurateECM
Related DTCs P0630: VIN not programmed
Required Sensors / Components (Main) ECM
Required Sensors / Components (Related) -
Frequency of Operation Continuous
Duration 0.325 seconds
MIL Operation Immediate
Sequence of Operation None
The monitor will run whenever these DTCs are not
presentNone
Battery voltage 8 V or more
Ignition switch ON
Starter OFF
VIN code Not programmed
VIN code Programmed
1READ CURRENT DTC
Display (DTC Output) Proceed to
P0630 A
P0630 and other DTCs B

ES–3342GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
DESCRIPTION
The ECM monitors the output voltage to the throttle actuator. This self-check ensures that the ECM is
functioning properly. The output voltage is usually 0 V when the ignition switch is turned off. If the output
voltage is higher than 7 volts when the ignition switch is turned off, the ECM will illuminate the MIL and set
a DTC when the ignition switch is turned on.
MONITOR STRATEGY
TYPICAL ENABLING CONDITIONS
TYPICAL MALFUNCTION THRESHOLDS
INSPECTION PROCEDURE
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch to the ON position.
(c) Turn the tester on.
(d) Clear the DTC.
(e) Turn the ignition switch off.
(f) Disconnect the battery negative terminal and wait for 1
minute.
(g) Connect the battery negative terminal.
(h) Turn the ignition switch to the ON position for 10
seconds.
(i) Turn the ignition switch off.
(j) Turn the ignition switch to the ON position.
(k) Enter the following menus: DIAGNOSIS / ENHANCED II
/ DTC INFO / CURRENT CODES.
(l) Read the DTCs.
DTC P0657 Actuator Supply Voltage Circuit / Open
DTC DTC Detection Condition Trouble Area
P0657 Throttle actuator power supply error ECM
Related DTC P0657: ETCS power supply
Required sensors/Components (main) ECM
Required sensors/Components (sub) Throttle actuator
Frequency of Operation Once per driving cycle
Duration Within 1 second
MIL Operation Immediate
Sequence of Operation None
Monitor will run whenever this DTC is not present None
Ignition switch From ON to OFF
Throttle actuator power supply 7 V or more
1CHECK WHETHER DTC OUTPUT RECURS (IN ADDITION TO DTC P0657)

ES–3362GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
DESCRIPTION
The park/neutral position switch detects the shift lever position and sends signals to the ECM.
HINT:
After confirming DTC P0705, use the intelligent tester to confirm the PNP switch signal in the ALL menu
(to reach the ALL menu: DIAGNOSIS / ENHANCED OBD II / DATA LIST / ALL).
WIRING DIAGRAM
Refer to DTC P0705 for 2WD model (See page AX-40) or 4WD model (See page AX-40).
INSPECTION PROCEDURE
Refer to DTC P0705 for 2WD model (See page AX-41) or 4WD model (See page AX-41).
HINT:
Read freeze frame data using the intelligent tester or OBD II scan tool. The ECM records vehicle and
driving condition information as freeze frame data the moment a DTC is stored. 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.
DTC P0705Transmission Range Sensor Circuit Malfunc-
tion (PRNDL Input)
DTC No. DTC Detection Condition Trouble Area
P0705(A) Any 2 or more signals of the following are ON
simultaneously (2-trip detection logic)
• P input signal is ON.
• N input signal is ON.
• R input signal is ON.
• D input signal is ON.
(B) Any 2 ore more signals of the following are ON
simultaneously (2-trip detection logic)
• NSW input signal is ON.
• R input signal is ON.
• D input signal is ON.
(C) Any of following conditions is met for 2.0 sec. or more in
the S position (2-trip detection logic).
• NSW input signal is ON.
• P input signal is ON.
• N input signal is ON.
• R input signal is ON.
(D) All switches are OFF simultaneously for NSW, P, R, N and
D.• Open or short in park/neutral position switch circuit
• Park/neutral position switch
•ECM

2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–337
ES
DESCRIPTION
The throttle actuator is operated by the ECM and opens and closes the throttle valve using gears.
The opening angle of the throttle valve is detected by the Throttle Position (TP) sensor, which is mounted
on the throttle body. The TP sensor provides feedback to the ECM. This feedback allows the ECM to
appropriately control the throttle actuator and monitor the throttle opening angle as the ECM responds to
driver inputs.
HINT:
This ETCS (Electronic Throttle Control System) does not use a throttle cable.
MONITOR DESCRIPTION
The ECM monitors the electrical current through the electronic actuator, and detects malfunctions and
open circuits in the throttle actuator based on this value. If the current is outside the standard range, the
ECM determines that there is a malfunction in the throttle actuator. In addition, if the throttle valve does
not function properly (for example, stuck on), the ECM determines that there is a malfunction. The ECM
then illuminates the MIL and sets a DTC.
Example:
When the electrical current is more than 10 A, or less than 0.5 A and the throttle actuator duty ratio
exceeds 80%, the ECM interprets this as the current being outside the standard range, and illuminates the
MIL and sets a DTC.
If the malfunction is not repaired successfully, a DTC is set when the engine is quickly revved up to a high
rpm several times after the engine has idled for 5 seconds after engine start.
MONITOR STRATEGY
TYPICAL ENABLING CONDITIONS
All:
DTC P2102 Throttle Actuator Control Motor Circuit Low
DTC P2103 Throttle Actuator Control Motor Circuit High
DTC No. DTC Detection Condition Trouble Area
P2102Conditions (a) and (b) continue for 2.0 seconds (1 trip
detection logic):
(a) Throttle actuator duty ratio exceeds 80% or more
(b) Throttle actuator current is 0.5 A or less• Open in throttle actuator circuit
• Throttle actuator
•ECM
P2103Either of the following conditions is met:
• Hybrid IC diagnosis signal fails
• Hybrid IC current limiter port fails• Short in throttle actuator circuit
• Throttle actuator
• Throttle valve
• Throttle body
•ECM
Related DTCsP2102: Throttle actuator current (low current)
P2103: Throttle actuator current (high current)
Required Sensors / Components (Main) Throttle actuator (throttle body)
Required Sensors / Components (Related) None
Frequency of Operation Continuous
DurationP2102: 2 seconds
P2103: 25 times or 0.6 seconds
MIL Operation Immediate
Sequence of Operation None
The monitor will run whenever these DTCs are not
presentNone