Powertrain, generic (extended)

P271E Transmission Performance

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

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.

Likely causes

Slipping or deteriorating CVT drive belt (Honda HR-V)
Insufficient clamping or line pressure in the transmission
Control software without the latest calibration

Symptoms

  • Flashing D indicator and MIL on
  • Reduced engine power
  • Engine flare or weak acceleration

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€100–5,000
Time1–12 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

transmission internaltcm

Related codes

P2711P0868P0730P0700

References: static.nhtsa.gov, law.cornell.edu.