sensor TOYOTA SIENNA 2007 Service Repair Manual

ES–2322GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
(a) Disconnect the C22 CKP sensor connector.
(b) Disconnect the E11 ECM connector.
(c) Measure the resistance according to the value(s) in the
table below.
Standard resistance :
Check for open
Check for short
(d) Reconnect the ECM connector.
(e) Reconnect the CKP sensor connector.
NG
OK
(a) Check the CKP sensor installation condition.
OK:
Sensor is installed correctly.
NG
OK
(a) Check the teeth of the sensor plate.
OK:
Sensor plate does not have any cracks or
deformation.
NG
2CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM)
A165548E01
Tester Connection Specified Condition
NE+ (C22-1) - NE+ (E11-21) Below 1
NE- (C22-2) - NE- (E11-20) Below 1
Tester Connection Specified Condition
NE+ (C22-1) or NE+ (E11-21) - Body ground 10 k
or higher
NE- (C22-2) or NE- (E11-20) - Body ground 10 k
or higher
REPAIR OR REPLACE HARNESS OR
CONNECTOR (CRANKSHAFT POSITION
SENSOR - ECM)
3CHECK SENSOR INSTALLATION (CRANKSHAFT POSITION SENSOR)
BR03795E54
REPAIR OR REPLACE CRANKSHAFT
POSITION SENSOR
4CHECK CRANKSHAFT POSITION SENSOR PLATE (TEETH OF SENSOR PLATE)
REPAIR OR REPLACE CRANKSHAFT
POSITION SENSOR PLATE

ES–2342GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
DESCRIPTION
The intake camshaft's Variable Valve Timing (VVT) sensor (G signal) consists of a magnet and MRE
(Magneto Resistance Element).
The VVT camshaft drive gear has a sensor plate with 3 teeth on its outer circumference. When the gear
rotates, changes occur in the air gaps between the sensor plate and MRE, which affects the magnetic
field. As a result, the resistance of the MRE material fluctuates. The VVT sensor converts the gear
rotation data to pulse signals, uses the pulse signals to determine the camshaft angle, and sends it to the
ECM.
The crankshaft angle sensor plate has 34 teeth. The pickup coil generates 34 signals for each engine
revolution. Based on combination of the G signal and NE signal, the ECM detects the crankshaft angle.
Then the ECM uses this data to control fuel injection time and injection timing. Also, based on the NE
signal, the ECM detects the engine speed.
Reference: Inspection using an oscilloscope
DTC P0340Camshaft Position Sensor "A" Circuit (Bank 1
or Single Sensor)
DTC P0342Camshaft Position Sensor "A" Circuit Low
Input (Bank 1 or Single Sensor)
DTC P0343Camshaft Position Sensor "A" Circuit High
Input (Bank 1 or Single Sensor)
DTC P0345 Camshaft Position Sensor "A" Circuit (Bank 2)
DTC P0347Camshaft Position Sensor "A" Circuit Low
Input (Bank 2)
DTC P0348Camshaft Position Sensor "A" Circuit High
Input (Bank 2)
DTC No. DTC Detection Condition Trouble Area
P0340
P0345• Input voltage to ECM remains 0.3 V or less, or 4.7
V or higher for more than 5 seconds, when 2 or
more seconds have elapsed after turning ignition
switch ON (2 trip detection logic)
• No VVT sensor signal to ECM during cranking (1
trip detection logic)• Open or short in VVT sensor circuit for intake
camshaft
• VVT sensor for intake camshaft
• Camshaft timing gear for intake camshaft
• Jumped tooth of timing chain for intake camshaft
•ECM
P0342
P0347Output voltage of VVT sensor is 0.3 V or less for 5
seconds (1 trip detection logic)• Open or short in VVT sensor circuit for intake
camshaft
• VVT sensor for intake camshaft
• Camshaft timing gear for intake camshaft
• Jumped tooth of timing chain for intake camshaft
•ECM
P0343
P0348Output voltage of VVT sensor is 4.7 V or more for 5
seconds (1 trip detection logic)• Open or short in VVT sensor circuit for intake
camshaft
• VVT sensor for intake camshaft
• Camshaft timing gear for intake camshaft
• Jumped tooth of timing chain for intake camshaft
•ECM

2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–235
ES
HINT:
• The correct waveform is shown in the illustration.
• VV1+ and VV2+ stand for the VVT sensor signal, and NE+ stands for the CKP sensor signal.
MONITOR DESCRIPTION
If no signal is transmitted by the VVT sensor despite the engine revolving, or the rotations of the camshaft
and the crankshaft are not synchronized, the ECM interprets this as a malfunction of the sensor.
MONITOR STRATEGY
Item Content
TerminalsNE+ - NE-
VV1+ - VV1-
VV2+ - VV2-
Equipment Settings 5 V/Division, 20 ms./Division
Conditions Cranking or idling
Related DTCsP0340: Camshaft position sensor (Bank 1) open/short
P0340: Camshaft position/Crankshaft position misalignment (Bank 1)
P0340: Camshaft position sensor (Bank 1) range check (Chattering)
P0342: Camshaft position sensor (Bank 1) range check (low voltage)
P0343: Camshaft position sensor (Bank 1) range check (high voltage)
P0345: VVT sensor (Bank 2) open/short
P0345: VVT position/Crankshaft position misalignment (Bank 2)
P0345: VVT position sensor (Bank 2) range check (Chattering)
P0347: VVT position sensor (Bank 2) range check (low voltage)
P0348: VVT position sensor (Bank 2) range check (high voltage)
Required Sensors / Components (Main) VVT position sensor (Bank 1 and 2)
Required Sensors / Components (Related) Crankshaft position sensor
Frequency of Operation Continuous
Duration4 seconds:
P0340 (Camshaft position sensor range check), P0340, P0342, P0343 (Camshaft
position sensor range check (Chattering, Low voltage, High voltage)) P0345 (VVT
sensor range check (While starting engine)), P0345, P0347, P0348 (VVT sensor
range check (Chattering, Low voltage, High voltage))
5 seconds:
Others
MIL Operation2 driving cycles:
P0340 (Camshaft position sensor range check), P0345 (VVT sensor range check
(While starting engine))
Immediate:
Others
Sequence of Operation None
A107148E09

ES–2362GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
TYPICAL ENABLING CONDITIONS
All:
Camshaft Position Sensor Range Check:
Camshaft Position/Crankshaft Position Misalignment:
Camshaft Position Sensor Range Check (Chattering, Low voltage, High voltage):
VVT sensor range check (While starting engine):
VVT sensor range check (After starting engine):
VVT sensor range check (Chattering, Low voltage, High voltage):
TYPICAL MALFUNCTION THRESHOLDS
Camshaft Position Sensor Range Check:
Camshaft Position/Crankshaft Position Misalignment:
Camshaft Position Sensor Range Check (Fluctuating):
Camshaft Position Sensor Range Check (Low voltage):
Camshaft Position Sensor Range Check (High voltage):
VVT sensor range check (While starting engine):
VVT sensor range check (After starting engine):
The monitor will run whenever these DTCs are not
presentNone
Starter ON and not starter ON again
Minimal battery voltage while starter ON Less than 11 V
Engine RPM 600 rpm or more
Starter OFF
Starter OFF
Ignition switch ON and time after ignition switch is OFF
to ON2 seconds or more
Starter ON
Battery voltage while starter ON once at least Less than 11 V
Engine RPM 600 rpm or more
Starter OFF
Battery voltage 8 V or more
Ignition switch ON
Starter OFF
Ignition switch ON and time after ignition switch is OFF
to ON2 seconds or more
Battery voltage 8 V or more
Camshaft position signal No signal
Camshaft position and crankshaft position phase Mis-aligned
Camshaft position voltage Less than 0.3 V, or more than 4.7 V
Camshaft position voltage Less than 0.3 V
Camshaft position voltage More than 4.7 V
VVT sensor signal No signal
VVT sensor signal No signal

2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–237
ES
VVT sensor range check (Fluctuating):
VVT sensor range check (Low voltage):
VVT sensor range check (High voltage):
COMPONENT OPERATING RANGE
WIRING DIAGRAM
Refer to DTC P0335 (See page ES-222).
INSPECTION PROCEDURE
HINT:
Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition
information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data
can be helpful in determining whether the vehicle was running or stopped, whether the engine was
warmed up or not, whether the air-fuel ratio was lean or rich, as well as other data recorded at the time of
a malfunction.
(a) Disconnect the C18 or C19 VVT sensor connector.
(b) Measure the voltage according to the value(s) in the
table below.
Standard voltage
(c) Reconnect the VVT sensor connector.
NG
OK
VVT sensor voltage Less than 0.3 V, or more than 4.7 V
VVT sensor voltage Less than 0.3 V
VVT sensor voltage More than 4.7 V
VVT sensor voltage 0.3 to 4.7 V
1CHECK HARNESS AND CONNECTOR (SENSOR POWER SOURCE)
G038815E08
Tester Connection Specified Condition
VC (C18-3) - Body ground 4.5 to 5.0 V
VC (C19-3) - Body ground 4.5 to 5.0 V
Go to step 7

ES–2382GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
(a) Disconnect the C18 or C19 VVT sensor connector.
(b) Disconnect the E11 ECM connector.
(c) Measure the resistance according to the value(s) in the
table below.
Standard resistance :
Check for open
Check for short
(d) Reconnect the VVT sensor connector.
(e) Reconnect the ECM connector.
NG
OK
(a) Check the VVT sensor installation condition.
OK:
Sensor is installed correctly.
NG
OK
(a) Check the teeth of the signal plate.
OK:
Sensor plate teeth do not have any cracks or
deformation.
2CHECK HARNESS AND CONNECTOR (VVT SENSOR - ECM)
A165549E01
Tester Connection Specified Condition
VVR+ (C18-1) - VV1+ (E11-19) Below 1
VVL+ (C19-1) - VV2+ (E11-18) Below 1
VVR- (C18-2) - VV1- (E11-29) Below 1
VVL- (C19-2) - VV2- (E11-28) Below 1
Tester Connection Specified Condition
VVR+ (C18-1) or VV1+ (E11-19) - Body ground 10 k
or higher
VVL+ (C19-1) or VV2+ (E11-18) - Body ground 10 k
or higher
VVR- (C18-2) or VV1- (E11-29) - Body ground 10 k
or higher
VVL- (C19-2) or VV2- (E11-28) - Body ground 10 k
or higher
REPAIR OR REPLACE HARNESS OR
CONNECTOR (VVT SENSOR - ECM)
3CHECK SENSOR INSTALLATION (VVT SENSOR)
BR03795E54
REPAIR OR REPLACE VVT SENSOR
4CHECK CAMSHAFT TIMING GEAR ASSEMBLY (TEETH OF PLATE)

2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–239
ES
NG
OK
(a) Replace the VVT sensor (See page ES-509).
NEXT
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch to the ON position.
(c) Turn the intelligent tester on.
(d) Clear the DTCs.
(e) Select the following menu items: DIAGNOSIS /
ENHANCED OBD II / DTC / INFO / PENDING CODES.
(f) Read the DTCs.
Result
HINT:
If the engine does not start, replace the ECM.
B
AREPLACE CAMSHAFT TIMING GEAR
ASSEMBLY
5REPLACE VVT SENSOR
6CHECK WHETHER DTC OUTPUT RECURS
Display (DTC Output) Proceed to
No output A
P0340, P0342, P0343, P0345, P0347 or P0348 B
REPLACE ECM (See page ES-498)
END

ES–2402GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
(a) Disconnect the C18 or C19 VVT sensor connector.
(b) Disconnect the E9 ECM connector.
(c) Measure the resistance according to the value(s) in the
table below.
Standard resistance :
Check for open
Check for short
(d) Reconnect the VVT sensor connector.
(e) Reconnect the ECM connector.
NG
OK
7CHECK HARNESS AND CONNECTOR (VVT SENSOR - ECM)
A165583E01
Tester Connection Specified Condition
VC (C18-3) - VC (E9-23) Below 1
VC (C19-3) - VC (E9-23) Below 1
Tester Connection Specified Condition
VC (C18-3) or VC (E9-23) - Body ground 10 k
or higher
VC (C19-3) or VC (E9-23) - Body ground 10 k
or higher
REPAIR OR REPLACE HARNESS OR
CONNECTOR (VVT SENSOR - ECM)
REPLACE ECM (See page ES-498)

ES–2442GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
MONITOR DESCRIPTION
If the ECM does not receive any IGF signals despite transmitting the IGT signal, it interprets this as a fault
in the igniter and sets a DTC.
If the malfunction is not repaired successfully, a DTC is set 1 second after the engine is next started.
MONITOR STRATEGY
TYPICAL ENABLING CONDITIONS
Related DTCsP0351: Igniter (Cylinder 1) malfunction
P0352: Igniter (Cylinder 2) malfunction
P0353: Igniter (Cylinder 3) malfunction
P0354: Igniter (Cylinder 4) malfunction
P0355: Igniter (Cylinder 5) malfunction
P0356: Igniter (Cylinder 6) malfunction
Required Sensors / Components (Main) Igniter (Cylinder 1 to 6)
Required Sensors / Components (Related) Crankshaft position sensor
Frequency of Operation Continuous
Duration 0.256 seconds and 5 sparks
MIL Operation Immediate
Sequence of Operation None
The monitor will run whenever these DTCs are not
presentNone
Either of the following conditions met Condition 1 or 2
1. All of the following conditions are met: Condition (a) and (b)
(a) Engine RPM 500 rpm or less
(b) Battery voltage 6 V or more
A082388E23

2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–267
ES
The leak detection pump creates negative pressure through the reference orifice. When the system is
normal, the EVAP pressure is in 724 to 752 mmHg
* and saturated within a minute.
If not, the ECM interprets this as a malfunction. The ECM will illuminate the MIL and set DTC if this
malfunction is detected in consecutive drive cycle.
*: Typical valve
MONITOR STRATEGY
TYPICAL ENABLING CONDITIONS
Related DTCsP043E: 0.02 inch orifice clog (built-in pump module)
P043F: 0.02 inch orifice high-flow (built-in pump module)
P2401: Vacuum pump stuck OFF
P2402: Vacuum pump stuck ON
P2419: Vent valve stuck open (vent)
Required Sensors / Components Pump module
Frequency of Operation Once per driving cycle
Duration Within 2 minutes
MIL Operation 2 driving cycles
Sequence of Operation None
The monitor will run whenever these DTCs are not
presentNone
Atmospheric pressure 70 to 110 kPa (525 to 825 mmHg)
Battery voltage 10.5 V or more
Vehicle speed Less than 2.5 mph (4 km/h)
Ignition switch OFF
A138478E01