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P1630 Diagnostic Trouble Code Discussion for March 2007

Theft Deterrent Learn Mode Active

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Trouble Ticket Help Requests for DTC P1630
Help Request Posted
2003 Chevrolet Cavalier LS 2.2L No Start VIN: 1G1JF52F63
P1630: Theft Deterrent Learn Mode Active. ... starts. When no start occurs theft light stays on, shift interlock will not release and computer will not communicate. There were two u codes related to open and short in communication bus (u1301 & u1302). At one point the...
March 21, 2007
2000 Buick LeSabre Limited 3.8L No Start, Stall VIN: 1G4HR54KXY
P1630: Theft Deterrent Learn Mode Active. Customer says car will always crank over but some times will not start. Stalled on customer one time driving to store. Did not start on me once but started after getting scan tool.
March 27, 2007