FixVault
Home
›
Jeep
›
2021
›
Grand Cherokee SRT
›
Repair and Diagnosis
›
Engine Performance
›
System
›
6.4L - DTCS C053D To P0175
›
DTC Troubleshooting
›
P0161-O2 Sensor 2/2 Heater Performance
›
When Monitored
When Monitored
This diagnostic runs when the following conditions are met:
With the engine running
Heater duty cycle greater than 0%
Battery voltage greater than 11.0 volts