Diagnostic Aids

A scan tester should indicate vehicle speed whenever vehicle is in motion. For intermittent inspection, see INTERMITTENTS under TESTS W/O CODES article in the ENGINE PERFORMANCE Section.

Fig 1: Code 24 Schematic - VSS Circuit

Courtesy of ISUZU MOTOR CO.

Fig 2: Code 24 Flow Chart - VSS Circuit

Courtesy of ISUZU MOTOR CO.