Diagnostic Aids

Before replacing ECM, use an ohmmeter and check resistance of each ECM-controlled relay and solenoid coil. Replace any solenoid where resistance measures less than 20 ohms.

Fig 1: Code 32 Schematic - EGR System

Courtesy of ISUZU MOTOR CO.

Fig 2: Code 32 Flow Chart - EGR System

Courtesy of ISUZU MOTOR CO.