Monitor Description
WARNING: This page is about a different variant/trim than selected.
The ECM calculates the speed of the engine water pump assembly using a duty cycle signal sent from the engine water pump assembly. When the speed of the engine water pump assembly becomes less than 900 rpm while it is operating, the ECM detects the malfunction and stores DTC P261B.
The engine water pump assembly operates steplessly based on a duty cycle signal sent from the ECM. If actual drive duty cycle does not correspond to the target drive duty cycle of the engine water pump assembly, the ECM detects the malfunction and stores DTC P261C or P261D.