DSD Information System
Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 97 (Engine Control System (A25A-FXS) - Diagnostic Codes (P2610-P2A00)) >> SFI System >> DTC P26CA-14: Engine Coolant Pump Circuit Short to Ground or Open [10/2022 - 11/2023] >> Monitor Description

Monitor Description

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The ECM outputs an operation duty signal (WPO) to steplessly control the speed of the water inlet housing with water pump sub-assembly. The ECM outputs an operation duty signal (WPO) to the water inlet housing with water pump sub-assembly and monitors the actual duty signal (WPO) being output. When the operation duty signal (WPO) is being output to the to the water inlet housing with water pump sub-assembly and the actual operation duty signal (WPO) is a certain value or less, the ECM detects a malfunction and stores a DTC.