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P06AC

Control Module Internal Temperature Sensor B Range/Performance

Generic OBD-II

Common symptoms

What you'll notice

Common causes

Most likely first

  1. Faulty control module internal temperature sensor
  2. Poor electrical connection to the control module internal temperature sensor
  3. Control module internal temperature sensor wiring harness damage

How to diagnose & fix

Work through it in order

  1. Loss of power or acceleration
  2. Repeated stalling or engine misfires
  3. Difficulty starting the vehicle

Read & clear P06AC yourself

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