Dodge RAM 1500: Common Codes & Fixes

Real-world diagnostic data for the Dodge RAM 1500. These are the codes techs see most often. Tap any code for the full vehicle-specific fix and the exact part.

17 codes have specific fixes for the Dodge RAM 1500
P0089 The HEMI 5.7L uses a returnless fuel system with the regulator integrated into the fuel pump module. 2009-2020 · moderate DIY · 1.5-2.5 hours P0440 EVAP system malfunction on the Hemi is commonly caused by a failed purge solenoid (Mopar 4891738AB) or a cracked EVAP line running along… 2009-2018 · easy (solenoid), moderate (lines) DIY · 30 min (solenoid), 1-2 hours (lines) P0442 Check the EVAP purge solenoid (Mopar 4891738AB) mounted on the intake manifold. 2009-2018 · easy DIY · 30 min P0449 The EVAP vent valve on Ram trucks is located near the fuel tank area. 2009-2018 · easy DIY · 30-45 min P0450 The EVAP system pressure sensor on the Hemi Ram develops erratic readings from a corroded ground wire at the tank. 2003-2015 · Moderate DIY · 1-2 hours P0451 The EVAP pressure sensor on Dodge/Ram trucks is located on the fuel tank. 2009-2020 · moderate DIY · 1-2 hours P0453 An open circuit in the FTP sensor wiring harness between the tank and the PCM causes P0453. 2009-2020 · Moderate DIY · 1-2 hours P0522 The oil pressure sensor connector fills with oil that wicks up the wiring from a leaking sensor seal. 2009-2018 · Easy DIY · 30-45 minutes P0562 The battery cable ground connection at the engine block corrodes and creates voltage drop on the Hemi Ram. 2006-2016 · Easy DIY · 30 minutes - 1 hour P0602 Ram P0602 is typically seen after a used PCM was installed without the SKIM (Sentry Key Immobilizer) being married. 2006-2014 · pro only DIY · 1-2 hours P0731 First gear ratio faults on the 545RFE are commonly caused by a worn overdrive clutch pack or a stuck low/reverse solenoid. 2005-2016 · Easy (fluid), Advanced (solenoids) DIY · 1 hour (fluid + filter), 4-6 hours (solenoid pack) P1380 Ram P1380 comes with ABS codes, typically U0121 (lost comm with ABS module). 2002-2008 · moderate DIY · 2 hours U0073 Ram U0073 is often caused by water intrusion into the TIPM (Totally Integrated Power Module) in the underhood fuse box. 2005-2015 · hard DIY · 2-4 hours U0184 Ram U0184 often points to a failed MyGig radio (RER/REN/RBZ units). 2006-2015 · moderate DIY · 1-2 hours U0402 Ram U0402 can be a symptom of TIPM issues affecting TCM power, or an internal TCM fault. 2005-2012 · hard DIY · 2-4 hours U0422 Ram U0422 is often tied to TIPM issues since the TIPM contains BCM functions on many years. 2005-2015 · hard DIY · 2-4 hours U0672 On Ram trucks U0672 typically indicates a CAN-C bus issue between the FCM and the TIPM/BCM. 2009-2017 · Advanced DIY · 2-3 hours

Frequently Asked Questions

What are the most common check engine light codes on a Dodge RAM 1500?

The most commonly reported OBD-II codes for the Dodge RAM 1500 include P0089, P0440, P0442, P0449, P0450. Each code indicates a specific issue -- tap any code above for the full diagnostic breakdown.

How much does it cost to fix a check engine light on a Dodge RAM 1500?

Repair costs vary by code. Many Dodge RAM 1500 fixes like gas cap replacement, sensor cleaning, or spark plug changes are under $50 in parts and can be done at home. More complex repairs like catalytic converter or transmission work can run $500-$2,000+ at a shop.

Can I drive my Dodge RAM 1500 with the check engine light on?

It depends on the code. A steady check engine light usually means you can drive short distances safely. A flashing check engine light means stop driving immediately -- continued driving can cause serious engine damage. Scan the code first to know what you are dealing with.

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