2002 Pontiac Aztek AWDFACTORY OEM SERVICE PROCEDURE

Diagnostic Trouble Code Definitions

WARNING: This page is about a different car, the 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC TROUBLE CODE DEFINITIONS

DTC (1) Description Perform Test
P0574 Powertrain Control Module Detects High Vehicle Speed P0574Β 
P1554 Powertrain Control Module Detects Cruise Engaged Signal P1554Β 
P1560 Cruise Control Engaged With Vehicle In Neutral Or Park P1560Β 
P1564 Powertrain Control Module Detects Rapid Acceleration P1564Β 
P1566 Powertrain Control Module Detects High Engine Speed P1566Β 
P1567 Traction Control System Applied Brakes P1567Β 
P1570 Traction Control Active Cruise Disabled P1570Β 
P1574 Brakelight Switch Circuit P1574Β 
P1585 Cruise Control Inhibit Output Circuit P1585Β 
(1) Codes listed in this table are only for testing covered in this article. For complete DTC listing, see SELF-DIAGNOSTICS - 3.5L or SELF-DIAGNOSTICS - 4.0L article in ENGINE PERFORMANCE.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.