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Home >> Cadillac >> 1998 >> Eldorado Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Tests W/Codes >> Diagnostic Trouble Codes >> DTC P1564 - Cruise Control System Vehicle Acceleration Too High >> Diagnostic Procedures

Diagnostic Procedures

  1. Perform POWERTRAIN ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK , then go to next step.
  2. Using scan tool, check if DTC P0503 is also present. If DTC P0503 is present, diagnose affected DTC first. If DTC P0503 is not present, go to next step.
  3. Verify if DTC was set by wheelspin due to icy, wet or slippery conditions. If road conditions caused DTC to set, go to next step. If DTC is not set, fault is not present. See DIAGNOSTIC AIDS.
  4. Clear DTC. Explain to vehicle operator what caused DTC to set.
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