Toyota Corolla (E120): Problem symptoms table
Hint
: use the table below to help determine the cause of the problem. The numbers indicate the priority of the likely cause of the problem. Check each part in order. If necessary, replace these parts.
1. Headlamp and tail lamp
2. Front fog lamp system
3. Turn signal and hazard warning system
4. Stop lamp system
5. Back up lamp system
6. Interior lamp system
7. Light control rheostat system
Other materials:
Inspection procedure
1 Input signal check
See the input signal check on page 05–745.
check the indicator light when the clutch pedal is depressed.
Ok:
the indicator light goes off when the clutch pedal is
depressed.
2 Inspect terminal voltage(d)
Turn the ignition switch to on.
&n ...
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 ...
Inspection procedure
1 Inspect dlc3 terminal voltage(ts terminal)
Turn the ignition switch to on.
measure voltage between terminals ts and cg of dlc3.
Ok:
voltage: 10 – 14 v
2 Check harness and connector(dlc3 – body ground)
Check for open and short circuit in harness and connector between
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