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Electronically Erasable Programmable Read Only Memory Programming

  1. If Powertrain Control Module (PCM) was replaced, Electronically Erasable Programmable Read Only Memory (EEPROM) in PCM must be programmed. If EEPROM is not programmed, a PCM Diagnostic Trouble Code (DTC) will be set.
  2. Ensure battery is fully charged. If battery is being charged, ensure battery charger is disconnected before performing EEPROM programming procedure.
    3. NOTE: If EEPROM programming fails, ensure all electrical connections on PCM are okay. Check Techline(R) for latest software. If EEPROM programming still fails, replace PCM. See POWERTRAIN CONTROL MODULE  under REMOVAL & INSTALLATION.
  3. Ensure cable is properly connected on Data Link Connector (DLC). DLC is located below left side of instrument panel, to right of steering column. See Figure . Turn ignition switch to RUN position. Perform EEPROM programming using the Techline equipment manufacturer's instructions and latest software applicable for the vehicle model.
  4. Once EEPROM is reprogrammed, perform powertrain On-Board Diagnostic (OBD) system check. See POWERTRAIN DIAGNOSTIC 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. After EEPROM is reprogrammed, Crankshaft Position (CKP) sensor variation learn procedure must be performed. See CRANKSHAFT POSITION SENSOR VARIATION LEARN PROCEDURE  .
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