2GR-FE ENGINE CONTROL SYSTEM
– SFI SYSTEM
ES–457
ES
DESCRIPTION
In the diagram below, when the engine is cranked, current flows from terminal ST1 (STR) of the ignition
switch (power source control ECU) to the starter relay (Marking: ST) coil and also current flows to terminal
STA of ECM (STA signal).
When the STA signal and NE signal are input to the ECM, Tr is turned ON, current flows to coil of the
circuit opening relay (Marking: C/OPN), the relay switches on, power is supplied to the fuel pump and the
fuel pump operates.
While the NE signal is generated (engine running), the ECM keeps Tr ON (circuit opening relay ON) and
the fuel pump also keeps operating.
Fuel Pump Control Circuit
Summary of Contents for 2GR-FE
Page 176: ...ES 20 2GR FE ENGINE CONTROL SYSTEM SFI SYSTEM ES NEXT 20 CONDUCT CONFIRMATION TEST END ...
Page 247: ...2GR FE ENGINE CONTROL SYSTEM SFI SYSTEM ES 91 ES OK REPLACE ECM See page ES 518 ...
Page 412: ...ES 256 2GR FE ENGINE CONTROL SYSTEM SFI SYSTEM ES A END ...
Page 447: ...2GR FE ENGINE CONTROL SYSTEM SFI SYSTEM ES 291 ES OK REPLACE ECM See page ES 518 ...
Page 556: ...ES 400 2GR FE ENGINE CONTROL SYSTEM SFI SYSTEM ES A REPLACE TCM ...
Page 630: ...ES 474 2GR FE ENGINE CONTROL SYSTEM SFI SYSTEM ES OK REPLACE ECM See page ES 518 ...
Page 658: ...2GR FE ENGINE CONTROL SYSTEM VVT SENSOR ES 493 ES 22 INSTALL ENGINE UNDER COVER LH ...
Page 897: ...2GR FE STARTING SMART KEY SYSTEM ST 35 ST OK REPLACE MAIN BODY ECU ...
Page 923: ...2GR FE STARTING SMART KEY SYSTEM ST 61 ST OK REPLACE MAIN BODY ECU ...
Page 935: ...2GR FE STARTING SMART KEY SYSTEM ST 73 ST OK REPLACE MAIN BODY ECU ...
Page 940: ...ST 78 2GR FE STARTING SMART KEY SYSTEM ST OK REPLACE MAIN BODY ECU ...
Page 958: ...ST 96 2GR FE STARTING SMART KEY SYSTEM ST OK END MAIN BODY ECU DEFECTIVE ...