P0643 on NISSAN XTERRA
What P0643 Means on Your NISSAN XTERRA
Real NISSAN XTERRA Owner Reports (Source: NHTSA Complaints Database)
"Error code on 2005 nissan xterra - p0643 has shown up on many models with this engine. noted on an emission inspection for annual tx inspection."
"Nissan xterra 2006, both front cats have failed. dealer said due to ethanol a common problem, cost around $2300. found cats and a mechanic for $1200. after 3 weeks check engine light returned. i am now getting a p0643."
Data from NHTSA Vehicle Complaints Database. All reports are filed by vehicle owners directly with the U.S. Department of Transportation.
Common Causes of P0643 on NISSAN XTERRA
Percentages based on NHTSA complaint component analysis for this vehicle.
Complaint Trend by Year
What To Do Next
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1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if your vehicle is covered.
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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.