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Electronically Erasable Programmable Read Only Memory (EEPROM) Programming

  1. If VCM was replaced, the EEPROM in the VCM must be programmed. If EEPROM is not programmed, a DTC will be set.
  2. Ensure battery is fully charged. Ensure cable is properly connected on Data Link Connector (DLC). Turn ignition switch to ON position. Perform EEPROM programming using Techline® equipment. Follow manufacturer's instructions and latest software applicable for vehicle model.
  3. Once EEPROM is reprogrammed, CKP sensor variation learn procedure and password learn procedure for anti-theft system must be performed. See CRANKSHAFT POSITION (CKP) SENSOR VARIATION LEARN PROCEDURE . See PASSWORD LEARN PROCEDURE FOR ANTI-THEFT SYSTEM .
    NOTE: If EEPROM programming fails, ensure all harness connections on VCM are okay. Check Techline® for latest software. If EEPROM programming still fails, replace VCM.
  4. Once CKP sensor variation learn procedure and password learn procedure for anti-theft system are performed, perform Powertrain On-Board Diagnostic (OBD) system check. See POWERTRAIN ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK in appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
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