LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Subaru >> 2018 >> WRX STI >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Starting System & Charging System (Except For STI)) >> Generator >> Inspection >> Diode
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Section 1 (Starting System & Charging System (Except For STI)): Generator: Inspection: Diode

WARNING: This page is about a different variant/trim than selected.
CAUTION: There is the possibility of damaging the diodes if a mega-tester (used to measure high voltages) or a similar measuring instrument is used. Never use a mega tester or equivalent for this test.
  1. Check for continuity between the diode lead and terminal E or B. If continuity is not as shown in the table, replace the rectifier.
    • At analog type tester
    TESTER LEAD CONTINUITY
    -LEAD +LEAD
    E P1, P2, P3, P4, P5, P6 Yes
    B None
    P1, P2, P3, P4, P5, P6 E None
    B Yes