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Tricking an antitheft?
I have a 91 Deville with a bad antitheft module. It will not enable the starter or PCM. There is one wire to the PCM to enable the antitheft. Anyone know what signal/voltage/etc. should be on that wire? MOD does not tell me. Login to read more. ![]()
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| Engine | 4.9 L |
| Trans | 4-speed Automatic (Electronic) |
Vehicle Data
1991 Cadillac DeVille 4.9L
| Engine | 4.9 L |
| Trans | 4-speed Automatic (Electronic) |

15 Replies Received
15 Replies Received