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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 P0574 
P1554 Powertrain Control Module Detects Cruise Engaged Signal P1554 
P1560 Cruise Control Engaged With Vehicle In Neutral Or Park P1560 
P1564 Powertrain Control Module Detects Rapid Acceleration P1564 
P1566 Powertrain Control Module Detects High Engine Speed P1566 
P1567 Traction Control System Applied Brakes P1567 
P1570 Traction Control Active Cruise Disabled P1570 
P1574 Brakelight Switch Circuit P1574 
P1585 Cruise Control Inhibit Output Circuit P1585 
(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.