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1453 Views 0 Replies 1 Participant Last post by  Boghog
This system of special circuitry provides minimal engine operation should the powertrain control module (PCM), mainly the Central Processing Unit or EEPROM, stop functioning correctly. All modes of Self-Test are not functional at this time. Electronic hardware is in control of the system while in fail safe operation.

EVAP ---------------------OFF
Ign Timing-----------------Fixed
High spd fan--------------Energized
Low spd Fan -------------OFF
AC relay--------------------OFF
Fuel Pump relay----------ON​
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