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P1626 Diagnostic Trouble Code Discussion for September 2005

Theft Deterrent System Fuel Enable Circuit Malfunction


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Trouble Ticket Help Requests for DTC P1626
Help Request Posted
1999 GMC C1500 Suburban 5.7L No Start, Starts then dies VIN: 3GKEC16R8X
P1626: Theft Deterrent Fuel Enable Signal Not Received. ... after startup. diagnostic flow led me to pcm is'nt firing the injectors. ignition system is fine during problem. fuel pressure is within specs also. p1626 passlock code sets when problem occurs.I traced the wiring all seems fine.I checked the wiring from t...
September 28, 2005
1999 GMC C1500 Suburban 5.7L No Start, Starts then dies VIN: 3GKEC16R8X
P1626: Theft Deterrent Fuel Enable Signal Not Received. ... after startup. diagnostic flow led me to pcm is'nt firing the injectors. ignition system is fine during problem. fuel pressure is within specs also. p1626 passlock code sets when problem occurs.I traced the wiring all seems fine.I checked the wiring from t...
September 28, 2005