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P1631 Diagnostic Trouble Code Discussion for August 2008

Theft Deterrent - Start Enable Signal Not Correct


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Trouble Ticket Help Requests for DTC P1631
Help Request Posted
1999 Cadillac DeVille d'Elegance 4.6L No Start VIN: 1G6KE54Y5X
P1631: Theft Deterrent System - Start Enable Signal Not Current. Vehicle came in for crank, no start. Please read entire entry, as i have performed many tests. B2750 and U1255 are hard codes in the IPC and U1255 in the SIR. I have good key with correct code. I have good resistance from pellet at ipc terminals and during cra...
August 26, 2008
1999 Cadillac DeVille d'Elegance 4.6L No Start VIN: 1G6KE54Y5X
P1631: Theft Deterrent System - Start Enable Signal Not Current. Vehicle came in for crank, no start. Please read entire entry, as i have performed many tests. B2750 and U1255 are hard codes in the IPC and U1255 in the SIR. I have good key with correct code. I have good resistance from pellet at ipc terminals and during cra...
August 27, 2008
1999 Cadillac DeVille d'Elegance 4.6L No Start VIN: 1G6KE54Y5X
P1631: Theft Deterrent System - Start Enable Signal Not Current. Vehicle came in for crank, no start. Please read entire entry, as i have performed many tests. B2750 and U1255 are hard codes in the IPC and U1255 in the SIR. I have good key with correct code. I have good resistance from pellet at ipc terminals and during cra...
August 26, 2008
1999 Cadillac DeVille d'Elegance 4.6L No Start VIN: 1G6KE54Y5X
P1631: Theft Deterrent System - Start Enable Signal Not Current. Vehicle came in for crank, no start. Please read entire entry, as i have performed many tests. B2750 and U1255 are hard codes in the IPC and U1255 in the SIR. I have good key with correct code. I have good resistance from pellet at ipc terminals and during cra...
August 27, 2008