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.