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 seat adjuster memory module memory. The seat adjuster memory 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 seat adjuster memory module connector will clear all current and history seat adjuster memory module DTC(s).
^ Disconnect the battery.
^ Disconnect the seat adjuster memory module connector.