Determining BCM Programed Key Code
To determine unknown BCM key code, use PASS-Key II(R) (VATS) Interrogator (J 35628-A) and following procedure.
- Connect VATS Interrogator (J 35628-A) wiring to PASS-Key II(R) dash connector at base of steering column. DO NOT connect to steering column wiring.
- Turn VATS Interrogator (J 35628-A) on and move key code switch to "1" and attempt to start engine. If engine starts, key code is "1". If engine does not start, turn ignition off and press 4-minute timer on VATS Interrogator.
- When timer indicator light goes out, move key code switch to next number and attempt to start engine. If engine does not start, continue trying different key codes until proper key code is found. See the PASSKEY II(R) KEY RESISTANCE .
PASSKEY II(R) KEY RESISTANCE
| Key Code No. | Nominal Resistance (Ohms) | Acceptable Range (Ohms) |
|---|---|---|
| 1 | 402 | 386-438 |
| 2 | 523 | 502-564 |
| 3 | 681 | 654-728 |
| 4 | 887 | 852-942 |
| 5 | 1130 | 1085-1195 |
| 6 | 1470 | 1411-1549 |
| 7 | 1870 | 1795-1965 |
| 8 | 2370 | 2275-2485 |
| 9 | 3010 | 2890-3150 |
| 10 | 3740 | 3590-3910 |
| 11 | 4750 | 4650-4960 |
| 12 | 6040 | 5798-6302 |
| 13 | 7500 | 7200-7820 |
| 14 | 9530 | 9149-9931 |
| 15 | 11,800 | 11,328-12,292 |