Toyota Corolla (E120) 2002–2008 Repair Manual / Introduction / How to troubleshoot ecu controlled
systems / Problem symptoms table
Toyota Corolla (E120): Problem symptoms table
The suspected circuits or parts for each problem symptom are shown in the table below. Use this table to troubleshoot the problem when a normal code is displayed in the diagnostic trouble code chart but the problem is still occurring. Numbers in the table indicate the order in which the circuits or parts should be checked.
Hint: when the problem is not detected by the diagnostic system even though the problem symptom is present, it may be that the problem is occurring outside the detection range of the diagnostic system.

Other materials:
Using the AUX port
This port can be used to connect a portable audio device and listen to it through
the vehicle’s speakers. Press until
“AUX” is displayed.
Connecting a portable player
■Operating portable audio devices connected to the audio system
The volume can be adjusted using the vehicle's ...
Front wheel alignment
Adjustment
1. Inspect tire
2. Measure vehicle height
Vehicle height:
Measuring points:
a: ground clearance of front wheel center
b: ground clearance of lower suspension arm front
bolt center
c: ground clearance of axle beam set bolt center
d: ground clearance of rear wheel center
Not ...
Circuit inspection
1 Check d squib circuit(airbag sensor assy center – horn button
assy)
Disconnect the negative (–) terminal cable from the battery,
and wait at least for 90 seconds.
disconnect the connectors between the airbag sensor
assy center and the horn button assy.
connect the ...


