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Home >> Lexus >> 2019 >> ES 350 Luxury >> Repair and Diagnosis >> External Pages >> Different car >> Section 244 (Engine Control System (A25A-FKS) - Diagnostic Codes (07 Of 12)) >> SFI System >> DTC P0627-12: Fuel Pump "A" Control Circuit Short to Battery [08/2020 - 08/2021] >> Monitor Description

Monitor Description

WARNING: This page is about a different car, the 2024 Lexus ES 250, 2023 Lexus ES 250, 2022 Lexus ES 250, and 2021 Lexus ES 250. However, it is still accessible from the selected car via links, so may be relevant.

The ECM monitors the fuel pump control ECU operation signals.

When the output duty ratio of the operation signal from the ECM is 3 to 65% and the FPC terminal voltage is a certain value or more for 3 seconds or more, the ECM stores a DTC.

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