P0600 — Serial communication link malfunction

Code P0600 is a standard OBD-II diagnostic trouble code: Serial communication link malfunction.

In our record, P0600 is reported most often on Chevrolet, Honda and Dodge vehicles , against electrical and engine failure patterns , across 2005–2019 model years.

In ProblemsByVin's analysis of the NHTSA owner-complaint record, owners cite P0600 across 9 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 P0600 9 patterns

2019 Honda Odyssey

electrical — Intermittent starting failure / parasitic battery drain

2014 Dodge Charger

engine — Engine Hesitation / Stalling / Surging Under Load

2012 GMC Terrain

electrical — Stability control, ABS, and TPMS warning lights cycling on and off

2012 Jeep Patriot

electrical — Stalling during freeway driving

2008 Chevrolet HHR

electrical — Electrical System Warning Lights and Instrument Panel Failures

2007 Chevrolet Silverado

engine — Reduced Engine Power / Stalling (Electronic)

2007 Chevrolet HHR

engine — Stalling under load or deceleration

2005 Lincoln LS

electrical — ETC Engine Failsafe Mode / Throttle Body Failure

2005 Nissan Xterra

powertrain — Radiator coolant-to-transmission cross-contamination leading to transmission 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 →