2007 TOYOTA SIENNA Service Repair Manual

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Page 553 of 3000

TOYOTA SIENNA 2007 Service Repair Manual 2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–247
ES
INSPECTION PROCEDURE
HINT:
Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition
information as f

Page 554 of 3000

TOYOTA SIENNA 2007 Service Repair Manual ES–2482GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
(a) Disconnect the I1, I2, I3, I4, I5 or I6 ignition coil with
igniter connector.
(b) Disconnect the E9 ECM connector.
(c) Measure the resista

Page 555 of 3000

TOYOTA SIENNA 2007 Service Repair Manual 2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–249
ES
OK
(a) Disconnect the I1, I2, I3, I4, I5 or I6 ignition coil with
igniter connector.
(b) Disconnect the E9 ECM connector.
(c) Measure the resi

Page 556 of 3000

TOYOTA SIENNA 2007 Service Repair Manual ES–2502GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
NG
OK
(a) Disconnect the I1, I2, I3, I4, I5 or I6 ignition coil
connector.
(b) Turn the ignition switch to the ON position.
(c) Measure the vo

Page 557 of 3000

TOYOTA SIENNA 2007 Service Repair Manual 2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–251
ES
Standard voltage
(e) Reconnect the ignition coil with igniter connector.
NG
OK
(a) Remove the IG2 relay from the No. 3 engine room R/B.
(b) Mea

Page 558 of 3000

TOYOTA SIENNA 2007 Service Repair Manual 2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–265
ES
DTC SUMMARY
HINT:
The 0.02 inch orifice is located inside the pump module.
DESCRIPTION
The circuit description can be found in the EVAP (Evapor

2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–265
ES
DTC SUMMARY
HINT:
The 0.02 inch orifice is located inside the pump module.
DESCRIPTION
The circuit description can be found in the EVAP (Evaporative Emission) System (See page ES-409).
INSPECTION PROCEDURE
Refer to the EVAP System (See page ES-412).
MONITOR DESCRIPTION
5 hours*1 after the ignition switch is turned off, the electric vacuum pump creates negative pressure
(vacuum) in the EVAP (Evaporative Emission) system. The ECM monitors for leaks and actuator
malfunctions based on the EVAP pressure.
HINT:
*1: If the engine coolant temperature is not below 35C (95F) 5 hours after the ignition switch is turned off,
the monitor check starts 2 hours later. If it is still not below 35
C (95F) 7 hours after the ignition switch is
turned off, the monitor check starts 2.5 hours later.
DTC P043EEvaporative Emission System Reference Ori-
fice Clog Up
DTC P043FEvaporative Emission System Reference Ori-
fice High Flow
DTC P2401Evaporative Emission System Leak Detection
Pump Control Circuit Low
DTC P2402Evaporative Emission System Leak Detection
Pump Control Circuit High
DTC P2419Evaporative Emission System Switching Valve
Control Circuit Low
DTCs Monitoring Item Malfunction Detection Condition Trouble AreaDetection
TimingDetection
Logic
P043E 0.02 inch orifice clogged P043E, P043F, P2401, P2402, P2419
are present when one of the following
conditions is met during key-off EVAP
monitor
• Reference orifice clogged
• Reference orifice high-flow
• Leak detection pump OFF
malfunction
• Leak detection pump ON
malfunction
• Vent valve ON (close) malfunction• Pump module
• Connector/wire
harness (Pump
module - ECM)
•ECMWhile
ignition
switch OFF2 trip P043F 0.02 inch orifice high-flow
P2401 Vacuum pump stuck OFF
P2402 Vacuum pump stuck ON
P2419Vent valve stuck open
(vent)
Sequence Operation Description Duration
- ECM activationActivated by soak timer, 5 hours (7 or 9.5 hours) after ignition switch
turned off.-

Page 559 of 3000

TOYOTA SIENNA 2007 Service Repair Manual ES–2662GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
*2: If there is only a small amount of fuel in the fuel tank, stabilizing the EVAP pressure takes longer than
usual.
AAtmospheric pressure
me

Page 560 of 3000

TOYOTA SIENNA 2007 Service Repair Manual 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

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