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P2101 Electronic throttle control system malfunction

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Electronic throttle control system malfunction, readable through chat.

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System
Fuel / air
Component
Throttle body

Symptoms

  • Check engine light on
  • Engine cranks but will not start
  • Engine starts and then dies
  • Code stored with no drivability symptom

Common causes

  • Carbon buildup on the throttle valve and bore
  • Engine control software not current
  • Failed throttle body (motor or position sensors)
  • Poor connection or loose terminals at the throttle body or PCM
  • Open in the throttle body ground or motor wires
  • Failed PCM

Guides for this code

Pencil sketch of a Honda Accord in a garage
Diagnostics & Repair

P2101 on a 2013-2017 Honda Accord: Throttle Fault, Causes, Fix

JC Landry · Oct 30, 2026

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