Powertrain
generic / SAE
P2504
Charging System Voltage High
The ECU detects a battery voltage above the regulated upper limit. The voltage regulator is not limiting alternator output, risking damage to electronic modules and battery overcharge.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number5 / 04
Possible causes
- Faulty voltage regulator high
- Poor alternator ground medium
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 150–800 €
- Estimated time: 0.5–3 h
- Component: alternator
- Component: voltage regulator
- Component: battery
- MIL / check engine light
Sources
References
sae:J2012