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Home >> Toyota >> 2024 >> Corolla LE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 40 (Engine Control System (2ZR-FXE) - Diagnostic Codes (12 Of 15)) >> SFI System >> DTC P148F-00: Engine Coolant Pump Over Revolution [04/2020 - 09/2022] >> Monitor Description

Monitor Description

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The ECM monitors the speed of the engine water pump assembly and stores a DTC when it determines that the engine water pump assembly rotates excessively based on the fact that the actual speed is higher than the target for a certain amount of time. (However, the MIL will not illuminate.)