Inspection & Repair

Set the circuit tester to resistance range and check continuity. Check continuity on circuits supplying W-52, W-53, and W-54, see Fig 1 and Fig 2 . If readings are not as specified, replace diode. See DIODE  under REMOVAL & INSTALLATION.

Fig 1: Testing Circuit W-52

Courtesy of ISUZU MOTOR CO.

Fig 2: Testing Circuits W-53 & W-54

Courtesy of ISUZU MOTOR CO.