Toyota Corolla (E170): If you think something is wrong

If you notice any of the following symptoms, your vehicle probably needs adjustment or repair. Contact your Toyota dealer as soon as possible.

Visible symptoms

● Fluid leaks under the vehicle.

(Water dripping from the air conditioning after use is normal.) ● Flat-looking tires or uneven tire wear ● Vehicles without a multi-information display: High engine coolant temperature warning light comes on.

● Vehicles with a multi-information display: Engine coolant temperature gauge needle continually points higher than normal.

Audible symptoms

● Changes in exhaust sound ● Excessive tire squeal when cornering ● Strange noises related to the suspension system ● Pinging or other noises related to the engine

Operational symptoms

● Engine missing, stumbling or running roughly ● Appreciable loss of power ● Vehicle pulls heavily to one side when braking ● Vehicle pulls heavily to one side when driving on a level road ● Loss of brake effectiveness, spongy feeling, pedal almost touches the floor

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    Terminals of ecu
    1. Inspect integration relay Disconnect the connector from the integration relay. check the continuity between each terminal of the disconnected connector and the body ground, as shown in the illustration and table. Standard: If the result is not as specified, the vehicle’s ...

    Inspection procedure
    Hint: the switch described in this text is a switch for transmitting signals which is built in the door control transmitter. 1 Check wireless door lock control functions Normal 2 Replace transmitter battery with normal one After replacing the transmitter battery with a new or normal o ...

    How to proceed with troubleshooting
    Troubleshoot in accordance with the procedure on the following pages. 1 Vehicle brought to workshop 2 Customer problem analysis check and symptom check Without applicable symptoms, proceed to ”a”.  with applicable symptoms, proceed to ”b”. 3 Symptom simulation 4 Prob ...