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2009 Chevrolet Silverado 3500 HD LT 6.6L MIL Lamp on, Delayed turn off
Posted to GM Driveability on 12/29/2011 14 Replies

This truck has a delayed turn off, you can take the keys out of ignition and it will keep running for at least 15 seconds. Mitchell doesn't give good diagnostics and if i un plug bcm truck dies. Replace bcm and still has same [...] the tech 2 is pluged in look...

14 Replies Received (View Replies)

  Related Documents & Media  2009 Chevrolet Silverado 3500 HD LT

 
Message Closed w/FIX

car Vehicle Data

2009 Chevrolet Silverado 3500 HD LT

VIN 1GBJC84689
Engine6.6 L / 8 cyl / DIESEL
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp on, Delayed Turn Off
OccursAlways
Misc.Ambulance

Trouble Codes

B1440Ignition mismatch
Message Closed w/FIX

car Vehicle Data

2009 Chevrolet Silverado 3500 HD LT

VIN 1GBJC84689
Engine6.6 L / 8 cyl / DIESEL
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp on, Delayed Turn Off
OccursAlways
Misc.Ambulance

Trouble Codes

B1440Ignition mismatch