Self-Diagnostic System Check (CRT Equipped)

SELF-DIAGNOSTIC SYS CHECK is an organized approach for identifying problems caused by on-vehicle computer controlled electronics. Understanding this chart and using it correctly will reduce diagnostic time and prevent unnecessary replacement of components. If you have not reviewed basic information on how to use computer self-diagnostics, go to beginning of this article.

Fig 1: CRT/DID Connectors (Cavity Views, CRT Equipped)

Courtesy of GENERAL MOTORS CORP.

Fig 2: Self-Diagnostic Sys Check (CRT Equipped)

Courtesy of GENERAL MOTORS CORP.