Toyota Corolla (E120): Problem symptoms table

The suspected circuits or parts for each problem symptom are shown in the table below. Use this table to troubleshoot the problem when a normal code is displayed in the diagnostic trouble code chart but the problem is still occurring. Numbers in the table indicate the order in which the circuits or parts should be checked.

Hint: when the problem is not detected by the diagnostic system even though the problem symptom is present, it may be that the problem is occurring outside the detection range of the diagnostic system.

Circuit inspection

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    Body panel sealing areas
    Be sure to apply body sealer to the body panel joints and door edges (tip of outer panel folded part), etc., To waterproof and rustproof them. Hint:  apply degreasing agent to a clean cloth and clean the sealer application areas. After removing the applied spot sealer from the se ...

    Manual shifting test
    1. Perform manual shifting test Hint: by this test, it can be determined whether the trouble is within the electrical circuit or is a mechanical problem in the transaxle. Disconnect the transmission wire connector.  inspect the manual driving operation. Check that the shift and g ...

    Replacement
    Hint: components: 1. Precaution 2. Disconnect battery negative terminal 3. Remove parking brake hole cover sub–assy 4. Remove floor shift shift lever knob sub–assy (m/t transaxle) 5. Remove shifting hole cover sub–assy (m/t transaxle) 6. Remove console panel upper 7. Remove conso ...