P2503 OBD-II: Charging System Voltage Low
P2503 Severity
Will P2503 go away on its own?
Once the vehicle's onboard system no longer detects the issue, most codes will disappear on their own. If your vehicle still has this code, however, it should be properly diagnosed to avoid a more serious problem.
For a proper diagnosis, RepairPal Certified shops have the equipment, tools, and expertise.
Moderate severity codes might not threaten the vehicle's safety or functionality immediately, but you should still get it diagnosed within a reasonable time frame to keep your car running well.
What causes OBD-II fault code P2503?
If the battery voltage falls below 10 volts for more than 8 seconds, code P2503 will be stored.
What Does P2503 Code Mean?
OBD-II Code P2503 is defined as a Charging System Voltage Low
If the battery voltage falls below 10 volts for more than 8 seconds, code P2503 will be stored.
P2503 Symptoms
- Engine may not start
- Engine may stall
Common Problems That Trigger the P2503 Code
- Alternator failure
- Battery failure
- Wiring issue
Common Repairs Needed for the P2503 Code
Ask our experts about P2503.
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