LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 2001 >> Explorer Sport Trac 4.0 K, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Engine Controls Self-Diagnostics - EEC-V - CNG & Gasoline - Introduction, Self-Diagnostic System, Additional System Functions, Programming Pcm, Diagnostic Trouble Code Definitions, How To Use System Tests) >> Additional System Functions >> Failure Mode Effects Management
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Failure Mode Effects Management

WARNING: This page is about a different variant/trim than selected.

FMEM mode allows system operation when sensors fail or transmit signals that are out of normal operating range. During FMEM mode, PCM substitutes a mid-range signal for defective sensor while continuing to monitor sensor. If faulty sensor signals return to normal operating range, PCM will use those signals. Depending on specific failure, a fault code may be set in PCM memory.