Heater Water Pump Circuit

Heater Water Pump Circuit

DESCRIPTION
The heater water pump assembly sends engine coolant to the heater core assembly while the engine is stopped to prevent heater effectiveness from becoming low. Directed by the air conditioning amplifier assembly, hybrid vehicle control ECU operates the water pump relay and drives the heater water pump assembly.

System diagram of the power distributor
System description of the power distributor

Wiring Diagram:

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INSPECTION PROCEDURE