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P1684 Chrysler Code - Battery Power To Module Disconnected

Quick Answer

The P1684 Chrysler code indicates that there is a disruption in the power supply to a module within the vehicle. Common causes include Loose or corroded battery terminals, Faulty wiring harness, Blown fuse. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P1684 Chrysler indicates Battery Power To Module Disconnected.
Common causes
Common causes include Loose or corroded battery terminals, Faulty wiring harness, Blown fuse.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 06, 2024
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Code P1684 Chrysler Description

The P1684 Chrysler code indicates that there is a disruption in the power supply to a module within the vehicle. In simpler terms, this means that the connection between the battery and a specific control module has been severed or interrupted. This could be due to a variety of reasons, including a loose or corroded battery terminal, a faulty wiring harness, a blown fuse, or a malfunctioning control module.

OBDII Code P1684 Chrysler - Battery Power To Module Disconnected
P1684 Chrysler Code - Battery Power To Module Disconnected

Common Causes of P1684 Chrysler

  1. Loose or corroded battery terminals
  2. Faulty wiring harness
  3. Blown fuse
  4. Malfunctioning control module
  5. Electrical short circuit

Symptoms of P1684 Chrysler

  1. Engine misfiring or running rough
  2. Dashboard warning lights illuminated
  3. Erratic behavior from electronic components (such as power windows or door locks)
  4. Difficulty starting the vehicle
  5. Stalling while driving

How to Fix P1684 Chrysler

  1. Begin by checking the battery terminals for tightness and corrosion. Clean and tighten them if necessary.
  2. Inspect the wiring harness connected to the affected module for any visible damage or loose connections. Repair or replace as needed.
  3. Check the fuses related to the module in question and replace any blown fuses.
  4. Use a diagnostic tool to reset the code and clear the error from the vehicle's system memory.
  5. If the issue persists, consider seeking professional help to diagnose and repair any underlying electrical faults or module malfunctions.

Cost to Fix P1684 Chrysler

The typical repair costs for addressing a P1684 Chrysler code can vary depending on the specific cause of the issue. In general, the cost of parts such as fuses or wiring harnesses may range from $50 to $200. Labor costs can add an additional $100 to $300, depending on the complexity of the repair. It's important to note that the actual cost may vary based on the location, vehicle make and model, and the specific diagnosis time and labor rates at auto repair shops. It's recommended to obtain quotes from local shops to get a more accurate estimate.

What does this mean?

Tech Notes for P1684 Chrysler

If other codes are present, check and repair other codes first. Make sure the battery charge is OK and the battery connectors are firmly secure.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1684 Chrysler Code

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  • i have a 2005 chrysler pacifica touring awd 3.5 v6. i have replaced input and output speed sensors,as well as trany filter and fluid,but my speedometer still wont work,but the rest of the cluster works,well the navi dont work either

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  • I have a. 02 pt cruiser giving me p1684 and p1490 i replaced the thermastate the pump good fan runs then it overheats?i dnt know what else to do?

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  • Hi I have Chrysler neon 2000 model I was doing mechincal work with car n I just unplug batry terminals n after three days I switched with battery car doesn't start n showing p1684 code n odo how can i remove this code or restore on factory settings on scanner showing imobolizer code how can I fix it on factory settings

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  • I have a 01 cruiser, can code p1684 also throw the p0551 code as well or vice a versa?

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  • I haven't seen any cases where the codes are related. I doubt the codes are related, one is for power to the Transmission Control Module and the other one for the Power Steering Pressure Sensor.

    P1684 CHRYSLER Code - Battery Power To Module Disconnected
    Read more: https://www.autocodes.com/p...

    P0551 CHRYSLER Code - Power Steering Pressure Sensor Circuit Range/Performance
    Read more: https://www.autocodes.com/p...

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