Toyota Corolla (E120): Diagnostic trouble code chart

Pre–check

Terminals of ecu

Other materials:

Body rocker panel moulding lh
Replacement Hint: use the same procedures for the rh side and lh side. 1. Remove body rocker panel moulding lh Remove the 8 retainers.  using a screwdriver, remove the moulding. Hint: tape the screwdriver tip before use.  remove the 7 clips from the moulding. 2. Insta ...

Replacement
1. Drain engine oil  remove the oil pan drain plug and drain the engine oil. 2. Removal & installation chain sub–assy 3. Remove chain vibration damper no.1  remove 2 bolts and chain vibration damper no. 1. 4. Remove oil pump assy Remove the 5 bolts.  rem ...

Circuit description
The rear heated oxygen sensor is used to monitor oxygen concentration in the exhaust gas. For optimum catalytic converter operation, the air fuel mixture must be maintained near the ideal ”stoichiometric” ratio. The heated oxygen sensor output voltage changes suddenly in the vicinity of ...