Oil Pressure Switch On-Vehicle Inspection

Disconnect oil pressure switch (1) lead wire.
Check for continuity between oil pressure switch terminal (2) and cylinder block (3) as shown.
If check result is not as specified, replace oil pressure switch (1).

Oil pressure sensor specification

During engine running: No continuity

At engine stop: Continuity

Fig 1: Checking Continuity Between Oil Pressure Switch Terminal (2) And Cylinder Block (3)
Courtesy of SUZUKI OF AMERICA CORP.