P1684low severityPowertrain
Battery Was Disconnected Within Last 50 Starts
on 2021 Dodge Durango 6.2L V8 Supercharged · 4WD
What this code means
The PCM has recorded that battery power was lost or disconnected within the last 50 engine start cycles. This is an informational code that indicates the PCM adaptive memory was reset and the system is relearning.
Symptoms
- Check Engine Light (temporary)
- Slightly rough idle during relearn
- Transmission may shift differently during relearn
- Fuel economy temporarily reduced
Common causes
- Battery recently disconnected for service
- Battery replaced
- Loose or corroded battery cable
- PCM fuse momentarily lost power
- Parasitic drain completely discharged battery
Diagnostic steps
- Clear the code and drive through 50 start cycles to allow it to expire
- If battery was not intentionally disconnected, check battery cables for looseness
- Test battery condition and charging system
- Check for parasitic electrical drain
- Inspect PCM power supply fuses
Repair notes
This code will clear itself after approximately 50 key-on cycles; no repair needed unless the battery disconnect was unintentional.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1