P2252 - O2 Sensor Negative Current Control Circuit Low Bank 1 Sensor 1

Repair Importance Level: 2/3
Repair Difficulty Level: 2/3   
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Possible causes

  • Faulty Front Oxygen Sensor Bank 1
  • Front Oxygen Sensor Bank 1 harness is open or shorted
  • Front Oxygen Sensor Bank 1 circuit poor electrical connection

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P2252 Description

The Front Oxygen Sensor (O2 Sensor 1) is placed into the exhaust manifold. It detects the amount of oxygen in the exhaust gas compared to the outside air. The heated oxygen sensor 1 has a closed-end tube made of ceramic zirconia. The zirconia generates voltage from approximately 1V in richer conditions to 0V in leaner conditions. The heated oxygen sensor 1 signal is sent to the Engine Control Module (ECM). The ECM adjusts the injection pulse duration to achieve the ideal air-fuel ratio. The ideal air-fuel ratio occurs near the radical change from 1V to 0V.
OBDII Code P2252 - O2 Sensor Negative Current Control Circuit Low Bank 1 Sensor 1 - AutoCodes.com

P2252 Information for specific makes

  • P2252 ACURA Air/Fuel Ratio Sensor 1 Bank 1 Circuit Low Voltage
  • P2252 DODGE O2 Sensor Negative Current Control Circuit Low Bank 1 Sensor 1
  • P2252 FORD O2 Sensor Negative Current Control Circuit Low Bank 1 Sensor 1
  • P2252 HONDA Air/Fuel Ratio Sensor 1 Bank 1 Circuit Low Voltage
  • P2252 HYUNDAI O2 Sensor Negative Current Control Circuit Low Bank 1 Sensor 1
  • P2252 KIA O2 Sensor Negative Current Control Circuit Low Bank 1 Sensor 1
  • P2252 LEXUS A/F Sensor Bank 1 Short Circuit
  • P2252 LINCOLN O2 Sensor Negative Current Control Circuit Low Bank 1 Sensor 1
  • P2252 MERCURY O2 Sensor Negative Current Control Circuit Low Bank 1 Sensor 1
  • P2252 SCION A/F Sensor Bank 1 Short Circuit
  • P2252 TOYOTA A/F Sensor Bank 1 Short Circuit

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