EATC Self Test-Blower Speed Controller (BSC)

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

Integrated Relay Control Module (IRCM) Circuit And Pin-Outs:

^ Refer to the illustration 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