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3-304 RAP
Description
Communication failure between the UI System Control PWB and the Control Panel.
Initial Actions
Verify that the IIT Fan is operating properly.
Procedure
1.Go to FLAG 1 and check the harness for an open or short circuit.
2.If the harness is OK, replace the UI System Control PWB ( PL 9.2 ).
3.If the problem is not corrected, replace the Control Panel ( PL 12.2 ).
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