General Information

HEV Motor System
P0C73 Motor Electronics Coolant Pump \'A\' Control Performance - General Information

Component Location





General Description

The Electronics Water Pump (EWP) supplies coolant from the radiator to the Hybrid Power Control Unit (HPCU) and the Hybrid Starter Generator (HSG). When the EWP is energized, coolant will flow through the HSG, Radiator, HPCU, Reservoir Tank and then back thru the EWP.

DTC Description

The MCU sets DTC P0C73 when the MCU detects that there is a failure on EWP.

DTC Detecting Condition





Diagnostic Circuit Diagram