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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    Precaution
    1. Check that the battery cables are connected to the correct terminals. 2. Disconnect the battery cables when the battery is given a quick charge. 3. Do not perform tests with a high voltage insulation resistance tester. 4. Never disconnect the battery while the engine is running. 5. Check that ...

    Refueling
    Opening the fuel tank cap Perform the following steps to open the fuel tank cap: Before refueling the vehicle ● Close all the doors and windows, and turn the engine switch off. ● Confirm the type of fuel. ■Fuel types Unleaded gasoline (Octane rating 87 [Research Octane Number ...

    Receiving a call
    When a call is received, the following screen is displayed together with a sound. To answer the phone Press the switch on the steering wheel or select . To refuse a call Press the switch on the steering wheel or select . To adjust the incoming call volume Turn the “PWR/VOL” knob. ...