P2503 Possible Causes
- Faulty Generator (Alternator)
- Generator harness is open or shorted
- Generator circuit poor electrical connection
- Faulty Powertrain Control Module (PCM)
First diagnose P2503 code
Check 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 terminals.
Cost of diagnosing the P2503 code
Labor: 1.0The cost of diagnosing the P2503 code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
P2503 Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P2503 DescriptionThe 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.
P2503 More InformationNeed more information on how to fix the P2503 code?
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P2503 Information for specific makes
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P2503 CommentsHelp us improve AutoCodes.com. Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the P2503 code? Have you replaced any parts?
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