Charging System Voltage Low
2004-2008 Chrysler Pacifica 4.0L V6
Description
The PCM has detected that the charging system voltage is below the acceptable operating range. The alternator is not providing sufficient voltage to maintain the battery charge and power the vehicle electrical systems.
Symptoms
- Check Engine Light
- Battery warning light on
- Dim headlights
- Electrical accessories losing power
- Battery draining
Common Causes
- Faulty alternator or voltage regulator
- Worn or slipping serpentine belt
- Poor electrical connections at alternator
- Corroded battery terminals
- Excessive electrical load from accessories
Diagnostic Steps
- Measure charging voltage at battery with engine running (should be 13.5-14.8V)
- Inspect serpentine belt tension and condition
- Check alternator wiring connections
- Test alternator output with load tester
- Inspect battery cables and terminals
Repair Notes
Replace the alternator if output is below specification; check belt and connections first.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P1682 on Other Vehicles
Common Questions
What does code P1682 mean on a 2004-2008 Chrysler Pacifica?
P1682 stands for "Charging System Voltage Low". The PCM has detected that the charging system voltage is below the acceptable operating range. The alternator is not providing sufficient voltage to maintain the battery charge and power the vehicle electrical systems.
What are the symptoms of P1682 on a Chrysler Pacifica?
Common symptoms of P1682 include: Check Engine Light, Battery warning light on, Dim headlights, Electrical accessories losing power, Battery draining.
What causes P1682 on a 2004-2008 Chrysler Pacifica?
Common causes of P1682 include: Faulty alternator or voltage regulator, Worn or slipping serpentine belt, Poor electrical connections at alternator, Corroded battery terminals, Excessive electrical load from accessories.