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:
Wiper & washer
Preparation
Sst
Recomended tools
Equipment
...
Inside vehicle
General maintenance
Performing these maintenance checks on the vehicle in the owner’s
responsibility. The owner may
perform the maintenance or take the vehicle to a service center.
Check the parts of the vehicle described below on a daily basis. In most cases,
special tool are not
requir ...
Using the dynamic radar
cruise control
Setting the vehicle speed
1. Press the driving assist mode
select switch to select
dynamic radar cruise control.
The dynamic radar cruise control
indicator will illuminate.
2. Using the accelerator pedal,
accelerate or decelerate to
the desired vehicle speed
(approximately 20 mph [30
km/h] or more ...