Low Fuel Level Signal: Function

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The illumination of the low fuel level warning lamp in the instrument cluster triggers the low fuel level signal to be sent to the ECM. This signal is processed via pin 8 of connector C0637 of the ECM.

Should a misfire occur while the fuel level is low, the following fault code may be evident and can be retrieved by TestBook/T4. See Fig 1.

Fig 1: Low Fuel Level Misfire P Code

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