| Professional Automotive Repair Technical Discussions for August 10, 2022 International Automotive Technicians' Network (iATN) - Members Only  | 
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Open Help Requests for GM
	
| Help Request | Answers | |
| 2013 GMC Sierra 2500 HD SLE 6.6L MIL Lamp on VIN: 1GT120C85D This truck came in with 14 codes all 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 ... Trouble codes: P154D  | 				
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Fixes & Summaries for GM
	
| Fix/Summary | Answers |