Suzuki Esteem, Swift 1994-02

Testing

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  1. Immerse temperature sensing part of ECT sensor in water (or ice) and measure resistance between sensor terminals while heating water gradually.
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  3. If measured resistance doesn-t show such characteristic as shown in the figure, replace ECT sensor.

    Click image to see an enlarged view

    Fig. Measuring resistance of the engine coolant temperature (ECT) sensor-Swift and Esteem models

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