2007 TOYOTA SIENNA Service Repair Manual

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Page 817 of 3000

TOYOTA SIENNA 2007 Service Repair Manual 2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–37
ES
*1: The ECM terminal voltage is constant regardless of
the output voltage from the sensor.
(a) WAVEFORM 1
(1) Camshaft Timing Oil Control Valve

2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–37
ES
*1: The ECM terminal voltage is constant regardless of
the output voltage from the sensor.
(a) WAVEFORM 1
(1) Camshaft Timing Oil Control Valve (OCV)
operation signal
HINT:
The wavelength becomes shorter as the engine
rpm increases.
HA2A (E10-1) - E05 (E10-6) Y - W-BA/F sensor heater
operation signalIgnition switch ON 9 to 14 V
HA1A (E10-2) - E04 (E10-7) B-W - W-BA/F sensor heater
operation signalIdling Below 3.0 V
HA1A (E10-2) - E04 (E10-7) B-W - W-BA/F sensor heater
operation signalIgnition switch ON 9 to 14 V
ME01 (E10-3) - E1 (E11-1) W-B - BREarth (ground) circuit of
ECMAlways Below 1 V
E03 (E10-4) - E1 (E11-1) W-B - BREarth (ground) circuit of
ECMAlways Below 1 V
HT2B (E10-5) - E1 (E11-1)
HT1B (E9-1) - E1 (E11-1)W-L - BR
L - BRHeated oxygen sensor
heater operation signalIdling Below 3.0 V
HT2B (E10-5) - E1 (E11-1)
HT1B (E9-1) - E1 (E11-1)W-L - BR
L - BRHeated oxygen sensor
heater operation signalIgnition switch ON 9 to 14 V
E05 (E10-6) - E1 (E11-1) W-B - BREarth (ground) circuit of
ECMAlways Below 1 V
E04 (E10-7) - E1 (E11-1) W-B - BREarth (ground) circuit of
ECMAlways Below 1 V
EKN2 (E10-20) - KNK2 (E10-
21)G - REarth (ground) circuit of
knock sensorWith engine speed at 4000 rpm
after warming upPulse generation
(see waveform 4)
KNK2 (E10-21) - EKN2 (E10-
20)R - G Knock sensor signalWith engine speed at 4000 rpm
after warming upPulse generation
(see waveform 4)
A1A+ (E10-22) - E1 (E11-1) BR - BR A/F sensor signal Ignition switch ON
3.3 V
*1
A1A+ (E10-22) - E1 (E11-1) BR - BR A/F sensor signal Ignition switch ON
3.0 V*1
A2A+ (E10-23) - E1 (E11-1) P - BR A/F sensor signal Ignition switch ON
3.3 V*1
A2A+ (E10-23) - E1 (E11-1) P - BR A/F sensor signal Ignition switch ON
3.0 V*1
EKNK (E10-28) - KNK1 (E10-
29)W - BEarth (ground) circuit of
knock sensorWith engine speed at 4000 rpm
after warming upPulse generation
(see waveform 4)
KNK1 (E10-29) - EKNK (E10-
28)B - W Knock sensor signalWith engine speed at 4000 rpm
after warming upPulse generation
(see waveform 4)
A1A- (E10-30) - E1 (E11-1) Y - BR A/F sensor Ignition switch ON
3.3 V
*1
A1A- (E10-30) - E1 (E11-1) Y - BR A/F sensor Ignition switch ON
3.0 V*1
A2A- (E10-31) - E1 (E11-1) L - BR A/F sensor Ignition switch ON
3.3 V*1
A2A- (E10-31) - E1 (E11-1) L - BR A/F sensor Ignition switch ON
3.0 V*1
OX2B (E10-33) - E2 (E9-28)
OX1B (E9-18) - E2 (E9-28)B - BR
W - BRHeated oxygen sensor
signalWith engine speed at 2500 rpm
for 2 minutes after warming upPulse generation
(see waveform 2) Symbols (Terminal No.) Wiring Colors Terminal Descriptions ConditionsSpecified
Condition
A093229E14
ECM Terminal NamesBetween OC1+ and OC1- , OC2+ and OC2- , OE1+
and OE1- , or OE2+ and OE2-
Tester Ranges 5 V/DIV, 1 msec./DIV
Conditions Idling

Page 818 of 3000

TOYOTA SIENNA 2007 Service Repair Manual ES–382GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
(b) WAVEFORM 2
(1) Heated oxygen sensor signal
HINT:
In the DATA LIST, item O2S B1S2 shows the
ECM input values from the heated oxygen
sensor.

Page 819 of 3000

TOYOTA SIENNA 2007 Service Repair Manual 2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–39
ES
(f) WAVEFORM 6
(1) Igniter IGT signal (from ECM to igniter) (1)
(2) Igniter IGF signal (from igniter to ECM) (2)
HINT:
The wavelength becomes sh

Page 820 of 3000

TOYOTA SIENNA 2007 Service Repair Manual ES–402GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
(j) WAVEFORM 10
(1) Throttle drive motor operation signal (negative
terminal)
HINT:
The duty ratio varies depending on the throttle
actuator o

Page 821 of 3000

TOYOTA SIENNA 2007 Service Repair Manual 2GR-FE ENGINE CONTROL SYSTEM – VVT SENSORES–509
ES
ON-VEHICLE INSPECTION
1. CHECK VVT SENSOR OUTPUT VOLTAGE
(a) Turn the ignition switch to the ON position.
(b) Check the voltage between the spe

Page 822 of 3000

TOYOTA SIENNA 2007 Service Repair Manual ES–5102GR-FE ENGINE CONTROL SYSTEM – VVT SENSOR
ES
REMOVAL
1. REMOVE WINDSHIELD WIPER MOTOR ASSEMBLY
HINT:
(See page WW-4)
2. REMOVE FRONT OUTER COWL TOP PANEL SUB-
ASSEMBLY (See page EM-27)
3.

Page 823 of 3000

TOYOTA SIENNA 2007 Service Repair Manual 2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–41
ES
DIAGNOSIS SYSTEM
1. DESCRIPTION
(a) When troubleshooting OBD II (On-Board
Diagnostics) vehicles, an intelligent tester
(complying with SAE J19

Page 824 of 3000

TOYOTA SIENNA 2007 Service Repair Manual ES–422GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
In order to enhance OBD function on vehicles and
develop the Off-Board diagnosis system, CAN
communication is introduced in this system (CAN:

ES–422GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
In order to enhance OBD function on vehicles and
develop the Off-Board diagnosis system, CAN
communication is introduced in this system (CAN:
Controller Area Network). It minimizes a gap
between technician skills and vehicle technology.
CAN is a network, which uses a pair of data
transmission lines, spanning multiple computers
and sensors. It allows a high speed communication
between the systems and to simplify the wire
harness connection.
Since this system is equipped with the CAN
communication, connecting the CAN VIM (VIM:
Vehicle Interface Module) with an intelligent tester is
necessary to display any information from the ECM.
(Also the communication between the intelligent
tester and the ECM uses CAN communication
signal.) When confirming the DTCs and any data of
the ECM, connect the CAN VIM between the DLC3
and the intelligent tester.
2. NORMAL MODE AND CHECK MODE
(a) The diagnosis system operates in normal mode
during normal vehicle use. In normal mode, 2 trip
detection logic is used to ensure accurate detection
of malfunctions. Check mode is also available as an
option for technicians. In check mode, 1 trip
detection logic is used for simulating malfunction
symptoms and increasing the system's ability to
detect malfunctions, including intermittent problems
(intelligent tester only) (See page ES-43).
3. 2 TRIP DETECTION LOGIC
(a) When a malfunction is first detected, the
malfunction is temporarily stored in the ECM
memory (1st trip). If the same malfunction is
detected during the next subsequent drive cycle, the
MIL is illuminated (2nd trip).
4. FREEZE FRAME DATA
(a) 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.
A082779E02

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