LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chrysler >> 2009 >> Sebring Limited, 2D Convertible >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0016 To P0129 - NGC >> P0052-O2 Sensor 2/1 Heater Circuit High >> Possible Causes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Possible Causes

Possible Causes 
(K199) O2 2/1 HEATER CONTROL CIRCUIT SHORTED TO VOLTAGE
(K199) O2 2/1 HEATER CONTROL CIRCUIT OPEN
EXCESSIVE RESISTANCE IN THE (Z931) GROUND CIRCUIT
2/1 OXYGEN SENSOR
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See  DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure  .