Home >> Jeep >> 2006 >> Commander Base, 3.7 K, AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> 3.7L & 4.7L & 5.7L Engine - DTCS P0016 To P0118, Diagnostic Code Index, Pre-Diagnostic Troubleshooting Procedure & Intermittent Condition >> Electrical Diagnostics >> Diagnosis And Testing >> P0052-O2 Sensor 2/1 Heater Circuit High >> Circuit Schematic