U0100 on Dodge Durango
Lost Communication With ECM/PCM A
Methodology: Reviewed against the SAE J2012 generic DTC definition and NHTSA owner-complaint patterns, then scoped to Dodge Durango context without treating complaints as confirmed diagnoses.
Sources: SAE/OBD-II definitions, manufacturer service information, and public reliability reports (including NHTSA where applicable).
- SAE J2012 Diagnostic Trouble Code Definitions — Generic diagnostic trouble code definition reference for U0100.
- NHTSA recalls, complaints, and manufacturer communications — Used to check public owner complaint context, recall status, and safety-related manufacturer communications by VIN or vehicle.
Limits: Guidance is informational and may not match every model-year or revision. Confirm with the official manual and diagnostics before replacing parts. For safety-critical or electrical work, use a qualified technician.
What U0100 Means on Your Dodge Durango
U0100 is a diagnostic trouble code indicating: Lost Communication With ECM/PCM A. This code relates to the network communication system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.
Real Dodge Durango Owner Reports
Source: NHTSA Complaints Database
"Takata recall. vehicle do not start, and check engine light came on.i took it to o'reilly's auto parts and connected the machine and give me the following errors: p2122, u1110, u11bc, u0100, u0101, and u1120 reference to the communication to tcm, and pcm with the vehicle."
"While driving the vehicle randomly stalled/died, though the instrument cluster/electronics stayed on. i tried to start the vehicle, but the engine wouldn't turn over."
"A vehicle that was previously bought back due to the engine and console shutting off while in operation was sold to me by bill luke dodge in phoenix, az. i was informed that this problem was fixed and that it had been analyzed at a facility for months prior to being put back on the market."
All reports filed by vehicle owners directly with the U.S. Department of Transportation.
📊 Complaint Trend by Model Year
Common Causes on Dodge Durango
Based on NHTSA complaint component analysis for this vehicle.
What To Do Next
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1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.
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2
Get a proper diagnosis
A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50–$150) pinpoints the root cause before you spend money on parts.
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3
Compare repair quotes
Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.