Electronically Erasable Programmable Read Only Memory (EEPROM) Programming

If PCM was replaced, the EEPROM in PCM must be programmed. If EEPROM is not programmed, a DTC will set.
Ensure battery is fully charged. If battery is being charged, ensure battery charger is disconnected before performing EEPROM programming procedure.
Ensure cable is properly connected on Data Link Connector (DLC). Turn ignition switch to ON position. Perform EEPROM programming using Techline® equipment manufacturer's instructions and latest software applicable for vehicle model. New PCM must learn PASS-Key® password. See PASS-KEY® III MODULE PROGRAMMING .
Once EEPROM has been reprogrammed, perform powertrain On-Board Diagnostic (OBD) system check. See POWERTRAIN ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK in appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE. Ensure engine is idling for one minute before checking for DTCs when performing powertrain OBD system check. Also, after EEPROM has been reprogrammed, the CKP sensor variation learn procedure must be performed. See CRANKSHAFT POSITION (CKP) SENSOR VARIATION LEARN PROCEDURE .
NOTE: If EEPROM programming fails, ensure all harness connections on PCM are okay. Check Techline® for latest software. If EEPROM programming still fails, replace PCM.