P2502

Symptoms

• Check engine light is on
• Weak or flickering headlights
• Problems starting the engine
• Reduced performance of electronic systems
• Battery low

Causes

• Faulty generator
• Worn or damaged alternator belt
• Bad contacts or damaged wiring
• Faulty voltage regulator
• Weak or old battery

How to Fix

1. Check the condition and tension of the alternator belt
2. Check the generator voltage at idle and under load
3. Inspect the wiring and connections of the charging system
4. Check the condition of the battery and its charge
5. If necessary, replace the generator or voltage regulator

Related codes

Error P2502 by Vehicle Brand