Electric Load Sensor: Description and Operation

1989 Acura Integra L4-1590cc 1.6L DOHC FISECTION Description and Operation

Alternator Control:





The electric load detector (ELD) is incorporated into the main fuse box in the engine compartment. The ELD functions much like an ammeter. It consists of an inductive coil and some support circuitry. It senses current flowing through ignition terminal 1 (Ign. 1), and generates a low voltage signal based upon the current load and direction of flow. The ELD signal is then sent to the ECU at pin B19, where it is used along with the FR signal to modify alternator output to stabilize idle speed to compensate for electrical load.

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.