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EATC Self Test-Blower Speed Controller (BSC)

Testing requires a Rotunda 007-00001, Digital Volt-Ohmmeter or equivalent.

EATC System Wiring Diagram:






^ Refer to the EATC System Wiring Diagram for terminal pin locations.
^ Use the Test Charts for self-test procedures.
Condition 1-No Blower, Ign In Run, ENG Warm, Auto Mode 90 F.
Condition 2-High Blower Only, Blower Switch In Low Position
Condition 3-Blower Operates But Does Not Vary With Switch
Condition 4-Cold Engine Lockout Inop, Fan on W/Eng Cold

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