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:
Playing audio CDs and MP3/WMA discs
CD player operation
Insert a disc or press to begin
listening to a disc.
1 Power
2 Volume
3 Eject a disc
4 Repeat play
5 Random playback 6 Select a track/file or display
track/folder list
7 Displays text message
8 Playback
9 Select a folder (MP3/WMA discs only), fast-forward or revers ...
Terminals of ecu
1. Inspect integration relay
Disconnect the connector from the integration relay.
check the continuity between each terminal of the disconnected connector
and the body ground, as
shown in the illustration and table.
Standard:
If the result is not as specified, the vehicle’s ...
Brake
Preparation
Sst
Recomended tools
Equipment
Lubricant
...