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Home >> Subaru >> 2017 >> Impreza Base, 4D Sedan, Automatic CVT Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Injection System >> Main Relay >> Inspection
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Main Relay: Inspection

  1. Check that the main relay has no deformation, cracks or other damages.
  2. Measure the resistance between main relay terminals.
Fig 1: Checking Main Relay Terminals Resistance
G10263639Courtesy of SUBARU OF AMERICA, INC.
Terminal No. Inspection conditions Standard
3 - 4 Always 1 MΩ or more
3 - 4 Apply battery voltage between terminals 1 and 2. Less than 1 Ω
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