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Home >> Subaru >> 2023 >> WRX Base, Standard Trans >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel Injection System >> Main Relay >> Inspection

Main Relay: Inspection

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