× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
2008 Chevrolet Avalanche LS 5.3L MIL Lamp on
Posted to GM Driveability on 9/20/2017 14 Replies

The p0449 has returned again. I will have to repeat the same, verify continuity and if the solenoid energizes and cycles. It would power a 921 bulb when working. The last time it would not ground so I ran new wire but did not work until I cleared the code, the...

14 Replies Received (View Replies)

  Related Documents & Media  2008 Chevrolet Avalanche LS

 
Message Closed w/FIX

car Vehicle Data

2008 Chevrolet Avalanche LS

VIN 3GNFK12368
Engine5.3 L / 8 cyl / FLEX
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursIntermittently

Trouble Codes

P0449PCM Internal Fault
Message Closed w/FIX

car Vehicle Data

2008 Chevrolet Avalanche LS

VIN 3GNFK12368
Engine5.3 L / 8 cyl / FLEX
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursIntermittently

Trouble Codes

P0449PCM Internal Fault