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2001 Chevrolet Silverado 2500 HD 6.6L No Start
Posted to GM Driveability on 8/28/2020 3 Replies

This truck was towed in for cranks but will not start. Truck would crank and start and die. Scanned for codes and found p1626 anti theft, u1000 class 2 serial codes. At this time all modules were communicating but anti theft was active. We did VTD relearn ...

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car Vehicle Data

2001 Chevrolet Silverado 2500 HD

VIN 1GCHK24161
Engine6.6 L / 8 cyl / DIESEL
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsNo Start
OccursAlways

Trouble Codes

P0650Cylinder 2 Misfire
P1255
P1626Theft Deterrent System Fuel Enable Circuit Malfunction
P1643Engine Speed Output Circuit Malfunction
U1000Class 2 Communication Malfunction
U1016Serial Communications Malfunction
Message Closed

car Vehicle Data

2001 Chevrolet Silverado 2500 HD

VIN 1GCHK24161
Engine6.6 L / 8 cyl / DIESEL
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsNo Start
OccursAlways

Trouble Codes

P0650Cylinder 2 Misfire
P1255
P1626Theft Deterrent System Fuel Enable Circuit Malfunction
P1643Engine Speed Output Circuit Malfunction
U1000Class 2 Communication Malfunction
U1016Serial Communications Malfunction