Diagnostic Aids

An open in circuit No. D2 or D7 will cause Code 23A to set. For intermittent inspection, see INTERMITTENTS in TROUBLE SHOOTING - NO CODES - FUEL INJECTION article.

Fig 1: Code 23A - Schematic

Courtesy of ISUZU MOTOR CO.

Fig 2: Code 23A - Diagnostic Flowchart

Courtesy of ISUZU MOTOR CO.