History Codes

When a DTC reports a failure and the failure was not in the current ignition cycle, the DTC will be stored as a history code. The memory seat module performs internal diagnostic tests in order to acknowledge that the related systems have reported a pass or fail condition. Each diagnostic test that fails is recorded in the memory seat module memory. The memory seat module memory may be accessed with a scan tool in order to determine which DTC circuit was at fault. A history DTC may be cleared (for any diagnostic test) by performing any of the following procedures:
^ Cycle the ignition with no diagnostic test reporting a fail.
^ Use a scan tool.

IMPORTANT: Disconnecting the battery or memory seat module connector will clear all current and history memory seat module DTC(s).

^ Disconnect the battery.
^ Disconnect the memory seat module connector.