Toyota Corolla (E120) 2002–2008 Repair Manual / Introduction / How to troubleshoot ecu controlled
systems / Circuit inspection
Toyota Corolla (E120): Circuit inspection
How to read and use each page is shown below.
Other materials:
Engine
On–vehicle inspection
Hint:
inspect these items on a cooled down engine.
1. Inspect drive belt
2. Replace spark plugs
3. Inspect air filter
Remove the air filter.
visually check that the air filter is not excessively damaged,
dirty or oily.
Peplace the air filter if nece ...
Inspection procedure
Hint:
if dtcs besides misfire are memorized simultaneously, first perform
the troubleshooting for them.
Read freeze frame data using the hand-held tester or the obd ii scan
tool. Freeze frame data records
the engine conditions when a malfunction is detected. When troubleshooting,
it ...
Circuit description
The speed sensor detects wheel speed and transmits the appropriate
signals to the ecu. These signals are used for control
of the abs control system. Each of the front and rear rotors has
48 serrations.
When the rotors rotate, the magnetic field generated by the permanent
magnet in the spe ...