Honda ACCORD HYBRID 2005 Service Manual page 701

IPU Module Fan
The battery m o d u l e , MPI module, and DC-DC converter generate heat during assist/regeneration. The IPU is equipped
w i t h a fan to cool it d o w n , assure proper battery performance, and protect the system. The fan has a control circuit and
rotation sensor that are controlled by the M C M . The cooling air is d r a w n into the battery m o d u l e f r o m the t o p of the
rear tray, then it is exhausted into the trunk c o m p a r t m e n t and outside of vehicle t h r o u g h the MPI m o d u l e heat sink, the
DC-DC converter and A/C compressor driver heat sink.
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