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:
Deleting the contact data
For PBAP compatible Bluetooth® phones, this function is available when “Automatic
Contact/History Transfer” is set to off. 1 Select “Delete Contacts”.
2 Select the desired contact and select “Delete”.
3 Select “Yes” when the confirmation screen appears.
■ Deleting the con ...
Overhaul
Caution:
wear the gloves, because the cutting surface of the seat back frame and seat
adjuster may injure
your hand.
Hint:
tape the screwdriver tip before use when prying parts.
1. Disconnect battery negative terminal
Caution:
wait for 90 seconds after disconnecting the battery terminal a ...
Front suspension arm sub–assy lower no.1 Lh
Replacement
Hint: components:
1. Remove front wheel
2. Disconnect front stabilizer link assy lh (lh (a/t) position)
3. Disconnect front stabilizer link assy rh (lh (a/t) position)
Hint:
remove the rh side by the same procedures as the lh side.
4. Separate front suspension arm sub–assy lowe ...