PCM Reset

After a PCM reset procedure, the following conditions will be met:

All DTCs cleared from PCM memory.
All freeze frame data cleared from PCM memory.
All oxygen sensor test data cleared from PCM memory.
OBD-II system monitor status is reset.
DTC P1000 set in PCM memory.

To perform PCM reset using NGS scan tester, ensure connectors are properly connected. Program scan tester using the following steps:

Select year, engine, model and any additional information requested by scan tester (optional).
Follow operating instructions from scan tester menu.
Select desired module (e.g. PCM or GEM). Press CONT button if monitors are not complete.
Turn ignition on and select CLEAR DIAGNOSTIC CODES.

All codes should now be cleared from module memory. If problem has not been corrected or fault is still present, hard code will immediately be reset in PCM memory.

CAUTION: DO NOT disconnect battery to clear codes. If battery is disconnected, vehicle computer 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.