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Home >> Fiat >> 2017 >> 500 Lounge, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 35 (1.4L Turbo - DTCS P0016-00 To P0270-00 - 500) >> DTC Troubleshooting >> P0037-00 O2 Sensor 1/2 Heater Circuit Low >> Possible Causes

Possible Causes

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Possible Causes
O2 SENSOR 1/1 HEATER CONTROL CIRCUIT SHORTED TO GROUND
O2 SENSOR 1/1
POWERTRAIN CONTROL MODULE (PCM)

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