Rectifier (Diode) Assembly

Using an ohmmeter, check continuity of diodes in both directions. See Fig 1 -Fig 3 . Continuity should be present in one direction only. If there is continuity in both directions, diode is shorted. If there is no continuity in either direction, diode is open. If any diode is defective, replace entire rectifier assembly. See OVERHAUL  .

Fig 1: Testing Rectifier Assembly (Passport, Rodeo & Rodeo Sport 2.2L)

Courtesy of ISUZU MOTOR CO.

Fig 2: Testing Rectifier Assembly (Passport, Rodeo & Rodeo Sport 3.2L)

Courtesy of ISUZU MOTOR CO.

Fig 3: Testing Rectifier Assembly (Trooper & VehiCROSS)

Courtesy of ISUZU MOTOR CO.