Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Sfi system / Fuel pump control circuit / Circuit description
Toyota Corolla (E120): Circuit description
In the diagram below, when the engine is cranked, current flows from terminal st2 of the ignition switch to the starter relay coil and also current flows to terminal sta of the ecm (sta signal).
When the sta signal and ne signal are input to the ecm, tr is turned on, current flows to the coil of the circuit opening relay, 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.

Wiring diagram

Other materials:
Radiator assy
Replacement
1. Drain coolant
2. Separate radiator hose inlet
3. Separate radiator hose outlet
4. Separate oil cooler inlet tube no.1
5. Separate oil cooler outlet tube no.1
6. Remove radiator assy
disconnect the fan motor connector.
disconnect two clamps for wire–harness fr ...
Fastening and releasing
the seat belt
To fasten the seat belt, push
the plate into the buckle until
a click sound is heard.
To release the seat belt,
press the release button A.
■Emergency locking retractor
(ELR)
The retractor will lock the belt during
a sudden stop or on impact. It may
also lock if you lean forward too
quickl ...
Power windows
Opening and closing the
power windows
The power windows can be
opened and closed using the
switches.
Operating the switch moves the
windows as follows:
Closing
One-touch closing*
Opening
One-touch opening*
*: To stop the window partway,
operate the switch in the opposite
direction.
■The po ...


