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Home >> Fiat >> 2017 >> 124 Spider Classica, Automatic Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> 1.4L - DTCS P2122-00 To U11E0-00 >> DTC Troubleshooting >> P2252-00-O2 Sensor 1-1 Negative Current Control Circuit Low >> Possible Causes
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Possible Causes

Possible Causes
O2 SENSOR 1/1 SIGNAL CIRCUIT SHORT TO GROUND
O2 SENSOR 1/1
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding.  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .