Testing EFI Main, Starter & Circuit Opening Relays
WARNING: This page is about a different car, the 2002 Lexus SC 430, 2002 Lexus LS 430, 2002 Lexus IS 300, 2002 Lexus GS 430, and 2002 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.
For relay terminal identification, see Fig 1 or Fig 2 . If relay continuity is not as specified, replace relay and retest system.
- Continuity should exist between terminals No. 1 and 2.
- Continuity should not exist between terminals No. 3 and 5.
- Apply battery voltage across terminals No. 1 and 2. Continuity should exist between terminals No. 3 and 5.