× 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

P154B Diagnostic Trouble Code Discussion for April 2020

Intake Air (IA) Heater Signal Circuit Malfunction


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P154B
Help Request Posted
2008 GMC Sierra 3500 HD SLE 6.6L Stall VIN: 1GDJK34668
P154B: Intake air heater circuit. ... plugged. Customer had EGR deleted (not by us). Intake air heater disconnected and P154B code when vehicle was purchased. We tested and found intake air heater faulty (part 2 weeks away). Vehicle still stalling after EG...
April 29, 2020