DTC    P0C73-776    Motor Electronics Coolant Pump "A" Control Performance

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK QUANTITY OF HV COOLANT

CHECK COOLANT HOSE

CHECK INVERTER WATER PUMP ASSEMBLY

PERFORM ACTIVE TEST USING INTELLIGENT TESTER (ACTIVATE THE WATER PUMP)

CHECK HV COOLANT (CHECK FOR CONDITIONS THAT MAY HAVE CAUSED FREEZING)

ADD HV COOLANT

INSPECT FOR COOLANT LEAK

CORRECT THE PROBLEM

CHECK CONNECTOR CONNECTION CONDITION (POWER MANAGEMENT CONTROL ECU CONNECTOR)

CHECK CONNECTOR CONNECTION CONDITION (INVERTER WATER PUMP ASSEMBLY CONNECTOR)

CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - INVERTER WATER PUMP ASSEMBLY)

READ VALUE USING INTELLIGENT TESTER (INVERTER W/P REVOLUTION)

CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - INVERTER WATER PUMP ASSEMBLY)

CHECK POWER MANAGEMENT CONTROL ECU

CONNECT SECURELY

CONNECT SECURELY

REPAIR OR REPLACE HARNESS OR CONNECTOR

REPLACE POWER MANAGEMENT CONTROL ECU

REPLACE POWER MANAGEMENT CONTROL ECU

REPLACE HV COOLANT

CHECK INVERTER WATER PUMP ASSEMBLY