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Home >> Cadillac >> 1991 >> Allante 4T60/ME9 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Introduction >> Service Telltale & Message Operation >> Telltale On

Telltale On

  1. BULB CHECK

    Ignition switch in crank position.

  2. MALFUNCTION

    When a diagnostic Trouble Code is Current. See DIAGNOSTIC TROUBLE CODE DEFINITIONS  for those Codes that turn ON the telltale.

  3. DIAGNOSTIC MODE

    After the indicator and segment check, the telltale should remain ON.
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