Dodge P1157 Lack Of HO2S22 Switch – Sensor Indicates Lean

Description

Possible causes
  • Pinched, shorted, and corroded wiring and pins.
  • Crossed sensor wires.
  • Exhaust leaks.
  • Contaminated or damaged sensor.

    • Symptoms
    – Engine Light ON (or Service Engine Soon Warning Light)
    P1157 Dodge OBD Code Description

    The downstream HO2Ss are forced rich and lean and monitored by the PCM. The test fails if the PCM does not detect the output of the HO2S in a calibrated amount of time.

    P1157 Dodge Information for specific makes
    P1157 Dodge ACURA< Dodge/span>
    P1157 Dodge BUICK Dodge
    P1157 Dodge CADIL DodgeLAC
    P1157 Dodge CHEVR DodgeOLET
    P1157 Dodge FORD
    P1157 Dodge GMC
    P1157 Dodge HONDA