AutoCodesChrysler – P2503 Chrysler

P2503 Chrysler Code - Charging System Voltage Low

Quick Answer

The Powertrain Control Module (PCM) monitors the charging system for changes in the output voltage. Common causes include Faulty Generator (Alternator), Generator harness is open or shorted, Generator circuit poor electrical connection. 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
P2503 Chrysler indicates Charging System Voltage Low.
Common causes
Common causes include Faulty Generator (Alternator), Generator harness is open or shorted, Generator circuit poor electrical connection.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 19,018
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jan 15, 2019
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Code P2503 Chrysler Description

The Powertrain Control Module (PCM) monitors the charging system for changes in the output voltage. The PCM set the OBDII P0503 code when the output voltage is out of factory specifications.
OBDII Code P2503 Chrysler - Charging System Voltage Low - AutoCodes.com
P2503 Chrysler Code - Charging System Voltage Low

What are the Possible Causes of the DTC P2503 Chrysler?

  • Faulty Generator (Alternator)
  • Generator harness is open or shorted
  • Generator circuit poor electrical connection
  • Faulty Powertrain Control Module (PCM)

How to Fix the DTC P2503 Chrysler?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2503 Chrysler code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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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 P2503 Chrysler Code

No Frequently Asked Questions about P2503 Chrysler Code found.

Discuss the causes and fixes for P2503 Chrysler OBDII Code

  • Hey man i could really use an answer very similar, same code 2503. The car keeps draining the battery dead put new battery in and new alternater and it continued to fail. I then complained about alternater and had it replaced with another new one from another company and same issue. They ran a a test charging test on the car and it shows batter fine but its shows up as alternator 0 voltage basically none existent. Im losing hope that i can figure this one out. any advice would be appreciated

  • What model and year is your Chrysler? have you check the alternator fuse or if there is power to the alternator solenoid?

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