Toyota Corolla (E120): Diagnostic trouble code chart

Pre–check

Terminals of ecu

Other materials:

Circuit description
When the ignition switch is turned on, battery positive voltage is applied to the coilwhich closes the contacts of the efi main relay (marked: efi) and supplies power to terminal +b of the ecm. This signal causes current to flow to the coil, closing the contacts of the efi relay and supplyin ...

If your vehicle overheats
The following may indicate that your vehicle is overheating. ● Vehicles without a multi-information display: The high engine coolant temperature warning light  comes on or a loss of power is experienced. Vehicles with a multi-information display: The engine coolant temperature gauge&n ...

Replacement
1. Remove engine under cover rh 2. Drain coolant 3. Remove front wheel rh 4. Remove cylinder head cover no.2 Remove the 2 nuts, 2 clips and cylinder head cover. 5. Remove fan and generator v belt Turn the v–ribbed belt tensioner slowly clockwise and loosen it. Then, remove ...