FixVault
Home
›
Jeep
›
2021
›
Grand Cherokee L Laredo, AWD
›
Repair and Diagnosis
›
Engine Performance
›
System
›
3.6L - DTCS P0037 To P0152
›
Diagnosis And Testing
›
P0052-O2-Sensor 2/1 Heater Circuit High
›
Set Condition
Set Condition
The Powertrain Control Module (PCM) detects that the O2 Sensor 2/1 Heater circuit resistance is above approximately 35.0 Ohms.