Clearing Codes

After repairs have been completed, connect NGS tool to data link connector 2. See Figure . Select clear codes function in GENERIC OBD-II FUNCTIONS and clear codes. Repeat QUICK TEST to ensure all OBD-II systems work properly and diagnostic trouble codes are no longer present. If diagnostic trouble code P1000 is present, go to DTC P1000 chart.

CAUTION: DO NOT disconnect vehicle battery to clear codes. This will erase stored operating information from Keep-Alive Memory (KAM). To clear KAM, disconnect negative battery terminal for at least 5 minutes.

CAUTION: When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See COMPUTER RELEARN PROCEDURES article in the GENERAL INFORMATION section before disconnecting battery.