P2609 on 2007-2024 RAM 2500 (2500 6.7L Cummins) — Intake Air Heater System Performance
1 vehicles · 1 makes · $300-$18,000 repair
Most Reported On
P2609 is an OBD-II diagnostic trouble code meaning “Intake Air Heater System Performance.” A rationality/performance code: the PCM monitors the overall intake air heater system (via intake air temperature response after the heater is commanded on) and determines the system is not heating intake air as expected, even though no specific circuit fault is present. This code is most commonly reported on 2007-2024 RAM 2500 (2500 6.7L Cummins), with repair costs ranging from $300 to $18,000.
Common Causes
Typical Repair Cost
Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose P2609, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
- Read & clear engine codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
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FAQ
What does P2609 mean?
P2609 stands for "Intake Air Heater System Performance." A rationality/performance code: the PCM monitors the overall intake air heater system (via intake air temperature response after the heater is commanded on) and determines the system is not heating intake air as expected, even though no specific circuit fault is present.
What are the most common causes of P2609?
The most common causes of P2609 are: Weak or partially failed intake air heater element(s), Faulty intake air heater relay, Intake air temperature sensor inaccuracy, High resistance in the heater power circuit, Low system voltage to the heater. The specific cause varies by vehicle.
How much does it cost to fix P2609?
Repair costs for P2609 range from $300 to $18,000, depending on the vehicle and root cause.
Which vehicles are affected by P2609?
Au7o has documented P2609 across 1 vehicle models from 1 manufacturers: RAM.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.