Deutz Fault Code

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Code 7-1-1 / SPN 91 FMI 2

Engine Stuck at Idle / Dead Pedal

System

Throttle / Controls

Symptom

Engine Stuck at Idle / Dead Pedal

Diagnosis & fix steps

LOGIC: Accelerator Pedal / Hand Throttle Signal Implausible. ACTION: Inspect foot pedal/hand lever potentiometer wiring. Verify 5V reference supply and check dual channel signal sweeps on a scan tool.

Red Seal field insights

Dual Track Interlock: Dual potentiometer channels must track within strict mathematical correlation limits; a tracking gap defaults the engine to low idle.

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