FixVault
Home
›
Jeep
›
2018
›
Grand Cherokee Trackhawk
›
Repair and Diagnosis
›
Engine Performance
›
System
›
6.2L - DTCS P0688 To P2099
›
DTC Troubleshooting
›
P0688-ASD/Main Sense Circuit
›
When Monitored
When Monitored
This diagnostic runs continuously when the following conditions are met:
With the ignition on.
Battery voltage above approximately 10.4 volts.