× 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

P154D Diagnostic Trouble Code Discussion for August 2022

Intake Air (IA) Heater Temperature 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 P154D
Help Request Posted
2013 GMC Sierra 2500 HD SLE 6.6L MIL Lamp on VIN: 1GT120C85D
P154D: Intake Air heater temperature signal circuit. ... intake air heater and NOX, H2os. Performed diag and found no 4-5 volts on the #1 terminal of the 6 wire connector at the intake air heater. Mitchell says to replace glow plug control module then if code returns replace air heater. I replace the glow pl...
August 01, 2022
2013 GMC Sierra 2500 HD SLE 6.6L MIL Lamp on VIN: 1GT120C85D
P154D: Intake Air heater temperature signal circuit. ... intake air heater and NOX, H2os. Performed diag and found no 4-5 volts on the #1 terminal of the 6 wire connector at the intake air heater. Mitchell says to replace glow plug control module then if code returns replace air heater. I replace the glow pl...
August 10, 2022