Engine-Codes - Ram - P1682 RAM

P1682 RAM Code - Charging System Voltage Too Low

- Code Popularity: 539 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
Table of contents

|What are the Possible Causes of the P1682 RAM Code?

  • Faulty generator (alternator)
  • Defective or Loose generator belt
  • Generator harness is open or shorted
  • Generator circuit poor electrical connection

|How to Fix the P1682 RAM Code?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

|What is the cost to diagnose the P1682 RAM code?

Labor: 1.0

The cost to diagnose the P1682 RAM code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|What are P1682 RAM code possible symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|What Does the P1682 RAM Code Mean?

The Powertrain Control Module (PCM) tries to maintain a system voltage between 12.9 and 15.0 volts. The voltage determined by the PCM as the final goal for the charging system is called "control" voltage. This control voltage is determined from the battery temperature sensor (ambient sensor). The control voltage is compared to the sensed voltage continuously during running. The PCM controls battery voltage by energizing and de-energizing the alternator field winding. When the battery voltage falls below a setpoint voltage, the generator field winding is energized until the battery voltage exceeds a set point.

Charging System Voltage Too Low

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