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Home >> Pontiac >> 1992 >> Firebird Formula, 5.0 F, Standard, M39 >> Repair and Diagnosis >> Accessories & Equipment >> Anti-Theft Systems >> Anti-Theft System >> System Testing >> Key Duplication Procedure >> Key Replacement (Spare Key Available)

Key Replacement (Spare Key Available)

The J35628 Interrogator or equivalent must be used to determine the proper electrical code of the key.

  1. Insert the customer's spare ignition key into the Key Code Reader on the J35628 Interrogator.
  2. Press the On-Off rocker switch to the ON position.
  3. A number from 1 to 15 will appear in the window designating the electrical code of the key.
  4. Cut a new key having the electrical code determined from the J35628 Interrogator.
  5. Start the engine using the new key to insure that the key is correct both mechanically and electrically.
Pass Key Resistance Values

Key Resistance Number Ohms Value
1 402
2 523
3 681
4 887
5 1130
6 1407
7 1870
8 2370
9 3010
10 3740
11 4750
12 6040
13 7500
14 9530
15 11800