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Home >> Buick >> 2001 >> Century Limited >> Repair and Diagnosis (Single Page) >> Body & Frame >> Door Locks >> Anti-Theft System >> Diagnostic Tests >> DTC P1626: Theft Deterrent Fuel Enable Signal Lost >> Diagnostic Procedure

Diagnostic Procedure

  1. Perform theft deterrent diagnostic system check. See THEFT DETERRENT DIAGNOSTIC SYSTEM CHECK  under SELF-DIAGNOSTIC SYSTEM. After performing diagnostic system check, go to next step.
    2. NOTE: DTC P1626 can only be set along with a corresponding DTC BXXXX code.
  2. Turn ignition switch to OFF position. Install scan tool. Turn ignition switch to ON position. Using scan tool, select DISPLAY DTCS function for BCM and PCM. If scan tool displays DTC P1626 as current, diagnose corresponding BXXXX code. See DIAGNOSTIC TROUBLE CODE DEFINITIONS  table under SELF-DIAGNOSTIC SYSTEM. If scan tool does not display DTC P1626 as current, go to DIAGNOSTIC AIDS  .
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