I own a Dodge Ram 3500 and recently received trouble code P2609. What steps should I take to diagnose and fix this issue? The code indicates a problem with the engine intake air heater system, which is critical for proper cold-start performance in diesel engines. I'm looking for reliable solutions that don't require a dealer visit.
Could you please specify your vehicle's year and engine size? This helps narrow down potential causes since P2609 behavior can vary by model year and engine configuration.
I recently encountered the same P2609 code on my 2008 Dodge Ram 3500 diesel with only 54,000 miles. I tried avoiding a dealer visit first by checking relays and wiring, but the issue persisted. Eventually, replacing the intake air heater module resolved it.
Hello, I have a 2005 Dodge Ram with P2609. I've already replaced the heater assembly, added ground wires, and swapped out relays—now the heaters are warming up properly. However, the code still remains. I also recently had my transmission replaced, and the engine light came on afterward. Could this have triggered or contributed to the P2609 fault? Any insights would be appreciated.
This issue is typically related to an electrical fault in the intake air heater system. The heaters may not be receiving power or could have faulty wiring, leading to P2609. Check for loose connections, blown fuses, and ensure proper grounding.