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Home >> Jeep >> 2005 >> Wrangler Rubicon, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 547 (DTCS P0121 To P0171) >> Diagnosis And Testing >> P0157-O2 Sensor 2/2 Circuit Low >> Monitor Conditions

Monitor Conditions

WARNING: This page is about a different car, the 2005 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
  1. When Monitored: 

    Engine running for less than 30 seconds and the O2 Sensor Heater Temperature is less than 251°C (484°F) with battery voltage greater 10.99 volts.