Toyota Corolla (E120): Initialization
1. Reset memory
Caution
: perform the reset memory (at initialization) when replacing the automatic transaxle assy, engine assy or ecm.
Notice
: hand–held tester only
- Turn the ignition switch off.
- connect the hand–held tester to the dlc3.
- turn the ignition switch to the on position.
- perform the reset memory procedure from the engine menu.
Caution
: after performing the reset memory, be sure to perform the road test described earlier.

Other materials:
Overhaul
1. Remove oil pump relief valve
Remove the oil pump relief valve plug, oil pump relief
valve spring and oil pump relief valve.
Oil pump relief valve plug
oil pump relief valve spring
oil pump relief valve
2. Inspect oil pump assy
Remove 3 screws and o ...
Circuit description
The rotary solenoid type idle air control (iac) valve is located
under the throttle body and intake air bypassing the throttle
valve flows into the iac valve through the passage.
In this way the intake air volume bypassing the throttle valve is
regulated, controls the engine speed.
The ...
Check mode procedure
1. Dtc check (check mode)
Hint:
hand–held tester only:
compared to the normal mode, the check mode has more sensing
ability to detect malfunctions. Furthermore, the same diagnostic
items which are detected in the normal mode can also be
detected in the check mode.
Procedure for check m ...


