» » »

Buick Q&A

Ask Your Question

1996 Buick Park Avenue Question: code p1441



, Atlanta, GA, March 03, 2010, 15:28

check engine light

1 Answer
Flag This
  • Answer #1

    March 03, 2010, 16:16

    Code Definition: Buick: Heated Oxygen Sensor (HO2S) Heater Control Circuit Bank 1 Sensor 2
    This is generally due to a failed Oxygen sensor heater. The heater is part of the O2 Sensor and is similar to a cigarette lighter, when current is applied to it, it heats up. A quick check of the power and ground signal to the sensor, and a resistance check of the heater circuit will reveal the problem.

    Flag This