U0002 — High-speed CAN communication bus performance

Code U0002 is a standard OBD-II diagnostic trouble code: High-speed CAN communication bus performance.

In our record, U0002 is reported most often on Dodge, RAM and Jeep vehicles , against electrical and powertrain failure patterns , across 2009–2019 model years. Dodge alone accounts for 60% of them.

In ProblemsByVin's analysis of the NHTSA owner-complaint record, owners cite U0002 across 5 vehicle failure patterns. Diagnostic codes in complaints are reported by owners and are unverified — they point to where this code shows up, not a confirmed diagnosis. Open a page below for the full pattern (symptoms, mileage, repair costs owners cite).

Vehicles where owners report U0002 5 patterns

2019 RAM 2500

electrical — CAN bus network communication error (U0002, U0212 codes)

2016 Jeep Wrangler

brakes — ABS Module Internal Failure (C2200 DTC)

2012 Dodge Charger

powertrain — Sudden loss of engine power and stalling while driving

2011 Dodge Nitro

powertrain — Transmission shift and engagement problems

2009 Dodge Charger

electrical — Shift lever and transmission electrical control failure

Codes are pulled from what owners wrote in their NHTSA filings — they're allegations, not a shop diagnosis. Always confirm with a live scan. Browse all diagnostic codes →