DTC    P261B    Engine Coolant Pump "B" Control Malfunction

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

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

CHECK HARNESS AND CONNECTOR (ENGINE WATER PUMP ASSEMBLY - ECM)

CHECK TERMINAL VOLTAGE (WPI VOLTAGE)

CHECK TERMINAL VOLTAGE (POWER SOURCE OF ENGINE WATER PUMP ASSEMBLY)

CHECK HARNESS AND CONNECTOR (ENGINE WATER PUMP ASSEMBLY - BODY GROUND)

CHECK HARNESS AND CONNECTOR (ENGINE WATER PUMP ASSEMBLY - ECM)

REPLACE ENGINE WATER PUMP ASSEMBLY

CHECK WHETHER DTC OUTPUT RECURS (DTC P261B, P261C OR P261D)

INSPECT RELAY (ENG W/P RELAY)

CHECK HARNESS AND CONNECTOR (ENG W/P RELAY - ENGINE WATER PUMP ASSEMBLY)

CHECK TERMINAL VOLTAGE (POWER SOURCE OF ENG W/P RELAY)

CHECK HARNESS AND CONNECTOR (ENG W/P RELAY - BODY GROUND)