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Electronically Erasable Programmable Read Only Memory (EEPROM) Programming (4.3L, 5.0L & 5.7L)

  1. If VCM was replaced, EEPROM in VCM must be programmed. If EEPROM is not programmed, a DTC will 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 the Techline® equipment manufacturer's instructions and latest software applicable for the vehicle model.
  3. Once EEPROM is reprogrammed, CKP sensor variation learn procedure and password learn procedure for anti-theft system must be performed using proper procedure.
    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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