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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    Bluetooth® (Multimedia system)
    Bluetooth® ■When using the Bluetooth® audio system ●In the following conditions, the system may not function. • If the portable audio player is turned off • If the portable audio player is not connected • If the portable audio player’s battery is low ●There may be a ...

    Circuit description
    Monitor description The ecm commands gearshift by turning the shift solenoid valves ”on/off”. When there is an open or short circuit in any shift solenoid valve circuit, the ecm detects the problem and the mil comes on. Illuminating the mil, the ecm performs the fail–safe and turns ...

    Overhaul
    Hint: overhaul the rh side by the same procedures with lh side. 1. Remove rear wheel 2. Drain brake fluid Notice: wash the brake fluid off immediately if it comes into contact with any painted surface. 3. Remove rear brake drum sub–assy Release the parking brake lever, and remove t ...