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OBD II Fault Code P2243 :

Description of Fault code P2243

A/F SENSOR REFERENCE VOLTAGE CIRCUIT OPEN

Possible failuer P2243

  • A/F sensor harness open.

Diagnostic Procedure using AutoHex II Scan Tool

  • Harness open is indirectly detected by Oxygen Concentration and Sensor Temperature.

Test Conditions using AutoHex tester

  • Engine running (Detection state can be confirmed by OBD STATUS)
  • BATTERY voltage ≥ 10.7V

Clear Fault codes Conditions

  • Harness open is indirectly detected by Oxygen Concentration and Sensor Temperature.

MIL Status

  • Check Engine Light ON

Changing Dmaged DME in F Series


Note:

  • AutoHex II is a professional Auto diagnostic.
  • This fault code is a GERENRIC fault code, some cars may change the meaning of this fault code.
    To get the accurate fault code description you may use AutoHex II

More Fault codes:

OBD II Fault Code P2244
OBD II Fault Code P2245
OBD II Fault Code P2246
OBD II Fault Code P2247
OBD II Fault Code P2248
OBD II Fault Code P2249
OBD II Fault Code P224A
OBD II Fault Code P224B
OBD II Fault Code P224C
OBD II Fault Code P224D
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