Diagnostic Aid

If code 23 is displayed, there should be no continuity between circuit 5 and ground. If code 35 is displayed, there should be continuity between STAY of power transistor and intake manifold. If code 54 is displayed, there should be continuity between circuit 10 and ground.

Fig 1: Code No. 23, 35, 54 Schematic, Power Transistor Circuit

Courtesy of ISUZU MOTOR CO.

Fig 2: Code No. 23, 35, 54 Flow Chart, Power Transistor Circuit

Courtesy of ISUZU MOTOR CO.