Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Combination meter / How to proceed with troubleshooting
Toyota Corolla (E120): How to proceed with troubleshooting
1 Vehicle brought to workshop
2 Customer problem analysis
3 Problem symptom confirmation
4 Circuit inspection
5 Repair or replace
6 Confirmation test
7 End
Customer problem analysis check
Other materials:
Circuit description
The p/t squib (lh) circuit consists of the airbag sensor assy center and seat
belt pretensioner (lh).
It causes the srs to deploy when the srs deployment conditions are satisfied.
Dtc b0135/73 is recorded when a short is detected in the p/t squib (lh) circuit.
Wiring diagram
...
Circuit description
When a misfire occurs in the engine, hydrocarbons (hc) enter the exhaust in
high concentrations. If this hc
concentration is high enough, there could be an increase in exhaust emissions
levels. High concentrations
of hc passing through the catalyst also cause to temperature of the catalyst to ...
Confirmation driving pattern
Connect the hand–held tester or the obd ii scan tool to the dlc3.
record dtcs and the freeze frame data.
set the check mode using the hand–held tester .
read the value on the misfire counter for each cylinder when
idling. If the value is displayed on the
misfire c ...