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Home >> Toyota >> 2016 >> Corolla S, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 20 (SFI System (2ZR-FAE) - Diagnostics - Circuit Tests (Model Code: ZRE172)) >> SFI System >> Circuit Tests >> Fuel Pump Control Circuit [08/2013 - ] >> Description

Fuel Pump Control Circuit [08/2013 - ]: Description

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The fuel pump circuit consists of the ECM, fuel pump and fuel pump control ECU assembly (which operates the fuel pump). Based on the engine output, the ECM determines the fuel pump speed. The speed is then converted to a duty signal and sent to the fuel pump control ECU assembly. Based on the signal sent from the ECM, the fuel pump ECU adjusts the fuel pump operation speed.

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