Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Sfi system / Mil circuit / Circuit description
Toyota Corolla (E120): Circuit description
The ignition switch provides circuit power and the ecm provides the circuit ground that illuminates the mil.
Mil operation is checked visually: it should be illuminated when the ignition is first turned on. If the mil is off all of the time or on all of the time, use the procedure below to troubleshoot it. The mil is used to indicate the ecm’s detection of a vehicle malfunction.
Follow this procedure using the hand–held tester or an obd ii scan tool to determine the cause of the problem and to check the mil.
Wiring diagram

Other materials:
Wheels
If a wheel is bent, cracked or
heavily corroded, it should
be replaced. Otherwise, the
tire may separate from the
wheel or cause a loss of
handling control.
Wheel selection
When replacing wheels, care
should be taken to ensure that
they are equivalent to those
removed in load capacity, diameter,
rim ...
Back up lamp assy lh
Replacement
1. Remove back up lamp assy lh
Remove the service hole cover.
remove the 2 nuts and disconnect the connector.
Using a mouldingremover, remove the 2 clips and back
up light assy lh.
2. Install back up lamp assy lh
Set the 2 clips on the back up ligh ...
Interior
SRS airbags
Floor mats
Front seats
Head restraints
Seat belts
Console box
Inside lock buttons
Cup holders
Rear seats
Rear seat heater switches*
*: If equipped
■Ceiling
Inside rear view mirror
Sun visors
Vanity mirrors
Vanity lights*
Interior lights/personal lights
Moon roof sw ...


