Diagnostic Aids

WARNING: This page is about a different car, the 2002 Oldsmobile Aurora and 2001 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.

This DTC may be stored as a History DTC without affecting the operation of the module. If stored only as a History DTC and not retrieved as a current DTC, do not replace the module.
This DTC will never set as current during testing unless there is a non- recoverable memory failure.
Intermittent interruptions to either the battery positive voltage circuit or the module ground circuit will cause the DTC to set. Refer to TESTING FOR INTERMITTENT AND POOR CONNECTIONS .
If this DTC is retrieved as a Current DTC, replace the module.

Fig 1: DTC B1004

Courtesy of GENERAL MOTORS CORP.