551 Error Code For SAME Tractor Models

There are 1860 kind of error description.

Description:

Hand Throttle (STD cab) Idle Validation Switches are both open

Foot Throttle Idle Validation Switches are both open (engine controller pins B25, B26)

If Inadequate air flow is problematic, so clogged air filters, evaporator core air flow restricted, faulty blower fan motors, defective blower switch or faulty wiring or loose connections.

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