For 1990-2009 cars

Disconnecting the battery or the BCM connectors will not clear a DTC. Clear a DTC only in one of the following two ways:

• | Using a scan tool

• | The BCM will automatically clear a DTC if the malfunction has not occurred within 50 ignition cycles.

Most all information in diagnostic tables will refer to the scan tool for diagnostic support.

Clear any history DTC after a system malfunction is corrected in order to prevent future misdiagnosis.