P1631 Diagnostic Trouble Code Discussion for September 2005
Theft Deterrent - Start Enable Signal Not Correct
Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.Trouble Ticket Help Requests for DTC P1631
| Help Request | Posted | |
| 1999 GMC Sierra 1500 SL 5.3L No Start VIN: 1GTEK19T7X P1631: Theft Deterrent - Start Enable Signal Not Correct. this truck has a intermittent no start security lockout.the computer is turning off the fuel injectors because it thinks the pass code is incorrect. the key lock cylinder is original.this is the 3rd GM vehichle to come to my shop with this pass code or pass lo... |
September 10, 2005 |
