Toyota Corolla Repair Manual: System too lean/rich

Inspection procedure

Hint: hand–held tester only: narrowing down the trouble area is possible by performing ”a/f control” active test (heated oxygen sensor or other trouble areas can be distinguished). Perform ac ...

Circuit description

The fuel trim is related to the feedback compensation value, not to the basic injection time. The fuel trim includes the short–term fuel trim and the long–term fuel trim. The short–term fuel tri ...

Other materials:

Using automatic mode
1 Press . The dehumidification function begins to operate. Air outlets and fan speed are automatically adjusted according to the temperature setting. 2 Adjust the temperature setting. 3 To stop the operation, press again. ■ If the system is operated manually in automatic mode If the fa ...

On–vehicle inspection
1. Check cooling fan operation with low temperature (below 83 c (181 f)) Turn the ignition switch on.  check that the cooling fan stops. Hint: if not, check the cooling fan relay and water temperature sensor, and check for separated connector or severed wire between the cooling fan ...

Sound quality is bad in all modes (volume is too low)
Wiring diagram Inspection procedure 1 Adjust sound quality Adjust the sound quality.  Operate the radio receiver assy to adjust the sound quality. Standard: malfunction disappear. 2 Compare it with another car of same model Compare it with another vehicle of the same mo ...