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P0A93-346 HBC-365 < COMPONENT DIAGNOSIS > D E F G H I J K L M A B HBC N O P OK >> Replace inverter with converter assembly (See HBC-638, "Removal and Installation" ). NG >> Replace water pump with motor & bracket assembly. 13. PERFORM ACTIVE TEST WITH CONSULT-III (INV WATER PUMP) 1. Compress the inlet hose for the water pump with motor & bracket assembly several times. 2. Turn ignition switch ON. 3. Perform “INV WATER PUMP” in “ACTIVE TEST” with CONSULT-III. 4. During the test, open the sub reserve tank cap and check that there are ripples in the coolant. Continue the active test for at least 1 minute. NOTE: • Keep compressing the water pump inlet hose until the coolant level in the sub reserve tank assembly stops dropping. • The water pump motor operates even in maintenance mode. • After repairing the coolant leaks and adding coolant, perform the “INV WATER PUMP” and “COOLING FAN SPD” active tests and make sure that there are no malfunctions. There are ripples in the coolant in the sub reserve tank assembly for 1 minute. OK >> Add coolant. NG >> GO TO 14. 14. CHECK WATER PUMP WITH MOTOR & BRACKET ASSEMBLY 1. Disconnect the hybrid vehicle control ECU harness connector E66. 2. Remove the 10A fuse (No. 67). 3. Apply 12 V to downstream terminal of the socket for the fuse in the high voltage fuse and fusible link box and check that the water pump operates. 4. Install the 10A fuse to the high voltage fuse and fusible link box. OK >> GO TO 15. NG >> GO TO 17. 15. CHECK HARNESS AND CONNECTOR (WATER PUMP WITH MOTOR & BRACKET ASSEMBLY - HV CONTROL ECU) 1. Disconnect the water pump with motor & bracket assembly connector E72. 2. Measure the resistance according to the value(s) in the table below. Check for open Check for short OK or NG OK >> GO TO 16. NG >> Repair or replace harness or connector. 16. CHECK HARNESS AND CONNECTOR (WATER PUMP WITH MOTOR POWER SOURCE CIRCUIT) The water pump operates. Hybrid vehicle control ECU Water pump with motor & bracket assembly Resistance Harness connector Terminal Harness connector Terminal E66 109 (IWP) E72 3 (SWP) Below 1 Ω Hybrid vehicle control ECU Ground Resistance Harness connector Terminal E66 109 (IWP) Ground 10 k Ω Water pump with motor & bracket assembly Ground Resistance Harness connector Terminal E72 3 (SWP) Ground 10 k Ω |