Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Sfi system / Random/multiple cylinder misfire
detected / Confirmation driving pattern
Toyota Corolla (E120): 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 counter, skip the following procedure of confirmation driving.
- drive the vehicle several times with the engine speed, load and its surrounding range shown with engine spd, calc load in the freeze frame data or misfire rpm, misfire load in the data list.
If you have no hand–held tester, turn the ignition switch off after the symptom is simulated once. Then repeat the simulation process again.
Hint
: do not turn the ignition switch off during the confirmation driving pattern. This switches the diagnosis system from the check mode to the normal mode, so all the dtcs and freeze frame data will be erased.

- Check whether there is misfire or not by monitoring dtc and the freeze frame data. After that, record them.
- turn the ignition switch off and wait for at least 5 seconds.
Other materials:
Circuit description
In the diagram below, when the engine is cranked, current flows from terminal
st2 of the ignition switch to
the starter relay coil and also current flows to terminal sta of the ecm (sta
signal).
When the sta signal and ne signal are input to the ecm, tr is turned on, current
flows to the c ...
Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have blown.
If this happens, check and replace the fuses as necessary.
1 Turn the engine switch off.
2 Open the fuse box cover.
► Engine compartment
Push the tab in and lift the lid off.
► Under the driver’s side i ...
Disposal
1. Dispose shock absorber assy front lh
fully extend the shock absorber piston rod.
using a drill, make a hole in the cylinder as shown in the
illustration to discharge the gas inside.
Caution:
when drilling, chips may fly out, work carefully.
The gas is colorless, o ...


