Hitachi Fault Code

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11100-2

Engine Stalling / No Start.

Variant 1

System

Engine Control

Symptom

Engine Stalling / No Start.

Diagnosis & fix steps

LOGIC: Abnormal Engine Speed signal. ACTION: Check the Crankshaft and Camshaft speed sensors. If the sensors are clean, perform a "Tug Test" on the sensor harness near the starter.

Red Seal field insights

Specs: Sensor resistance should be 100–200 Ohms. Hint: These sensors are highly sensitive to the "Air Gap." Target 1.0mm for a stable signal.

Variant 2

System

Not specified

Symptom

Engine Stumbles.

Diagnosis & fix steps

LOGIC: Engine Speed (Crank) Sensor signal erratic. ACTION: Check sensor resistance (typ. 100-200 Ohms) and harness shielding.

Red Seal field insights

Pro-Tip: Hitachi sensors are sensitive to "air gap." If the bracket is slightly bent, the signal drops at high RPM. Reset gap to 1.0mm.

Same code keeps coming back?

That's a program problem, not a part problem. Book a 30-minute uptime review with Grant, a Red Seal Heavy Duty Technician.

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Read before you touch anything

  • This is general reference information, not a repair manual. It is for trained, qualified technicians.
  • Fault codes, meanings and procedures vary by model, serial number and software version. Confirm the code and the procedure against the manufacturer's service manual before acting.
  • Follow the OEM service manual, torque specs and your site's safety procedures: lockout/tagout, block raised equipment, relieve hydraulic, fuel and air pressure, and let hot systems cool.
  • You use this information at your own risk. Adventure Mechanical and AM Fleet Integrity accept no liability for damage, injury, downtime or loss arising from its use.
  • Not affiliated with or endorsed by any manufacturer. Brand names are used only to identify the equipment a code applies to.

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