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P2445 Secondary air injection system pump stuck off, bank 1

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Secondary air injection system pump stuck off, bank 1, readable through chat.

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System
Emissions control
Component
Secondary air pump

Symptoms

  • Check engine light on
  • Reduced power (throttle opening limited)
  • Code returns after clearing

Common causes

  • Failed or seized air pump
  • Pump heater circuit fault
  • Disconnected or damaged air hose or tube
  • Air injection control driver or its circuit
  • Faulty pressure sensor in the valve set
  • Faulty engine control module

Guides for this code

Pencil sketch of a Toyota 4Runner in a garage
Diagnostics & Repair

P2445 and P2441 on a 2013-2015 Toyota 4Runner: Causes and Fixes

JC Landry · Oct 27, 2026

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Answers come from the factory manual for your make, model and year, with the page cited. Join the waitlist and we will email you when a spot opens up.