Toyota Corolla (E120) 2002–2008 Repair Manual / Preparation
Toyota Corolla (E120): Preparation
- Diagnostics
- Fuel
- Emission control
- Engine mechanical
- Cooling
- Lubrication
- Ignition
- Starting & charging
- Front suspension
- Rear suspension
- Drive shaft / propeller shaft
- Brake
- Parking brake
- Automatic transmission / trans
- Manual transmission/transaxle
- Clutch
- Steering column
- Power steering
- Heater & air conditioner
- Supplemental restraint system
- Seat belt
- Lighting
- Wiper & washer
- Audio & visual system
- Communication system
- Windshield/windowglass/mirror
- Instrument panel/meter
- Sliding roof/convertible
- Engine hood/door
- Exterior/interior trim
- Cruise control
Other materials:
Circuit description
The ecm compares the two waveforms of the heated oxygen sensors located
before and after the catalyst
to determine whether or not the catalyst performance has deteriorated.
Air–fuel ratio feedback compensation keeps the waveform of the heated oxygen
sensor in front of the catalyst
alterna ...
If the engine will not start
If the engine will not start even though correct starting procedures are being
followed , consider each of the following points:
The engine will not start even though the starter motor operates normally.
One of the following may be the cause of the problem:
● There may not be sufficient f ...
Inspection procedure
1 Check wire harness(airbag sensor assy center – front seat inner
belt assy lh)
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 front seat inner belt assy ( ...


