P271ETransmission Performance
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P271E is a broad performance code for the transmission as a whole, used when the controller finds that the gearbox does not deliver what it should even though no single sensor or valve has failed. Honda applies it to the CVT of the 2016-2020 HR-V: service bulletin A21-046 adds P271E with new PCM software that detects early slip of the primary drive belt. When it sets, the D indicator flashes, the MIL comes on and engine output is cut to protect the belt from breaking. Companion bulletin A21-047 extends CVT warranty to 7 years or 150,000 miles because the belt is now OBD-monitored, and the inspection uses a magnet to look for metal shed by the belt. Other makers may use P271E with other meanings, so the maker's own diagnosis decides what was measured.
- What you may notice
- Flashing D indicator and MIL on
- Reduced engine power
- Engine flare or weak acceleration
- Likely causes
- LikelySlipping or deteriorating CVT drive belt (Honda HR-V)
- PossibleInsufficient clamping or line pressure in the transmission
- RareControl software without the latest calibration
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €100 – €5,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.