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Central Timer Module (CTM)/Generic Electronic Module (GEM) Programming

Prior to removal of CTM/GEM, upload module configuration information to the New Generation Star (NGS) tester using manufacturer's instructions. Once module has been replaced, download module configuration information from NGS tester into new module.

NOTE: This procedure is used when a customer needs keys programmed into system and does not have 2 programmed ignition keys available, or when programmed ignition keys have been lost and/or ignition switch assembly has been replaced. This procedure will erase all programmed ignition keys from memory and prevent vehicle from starting until 2 keys have been programmed. Ignition keys must have correct mechanical key cut for vehicle and must be an encoded key. If additional key(s) are to be programmed, perform KEY PROGRAMMING - USING 2 PROGRAMMED KEYS. If remaining keys are with customer and not with vehicle, instruct customer to see owner's manual to program spare key(s).
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