DTC P2601: General Description

Courtesy of HONDA, U.S.A., INC.

Courtesy of HONDA, U.S.A., INC.

Courtesy of HONDA, U.S.A., INC.

The electric engine coolant pump cools the engine. The pump motor speed is varied by a drive duty command and outputs pump speed to the powertrain control module (PCM). Malfunction detection is performed by comparing the drive duty command to the electric engine coolant pump and pump speed. If the pump speed is higher or lower than the drive duty command by the prescribed value, the PCM detects a malfunction and stores a DTC.