P0563 on Jeep
System Voltage High
P0563 on Jeep vehicles indicates system voltage high. Au7o has documented this code across 1 Jeep model — most commonly on Wrangler. This code indicates the engine computer detected that the vehicle's system (battery) voltage is higher than the normal operating range. The PCM monitors charging system voltage, and persistently high voltage usually points to an overcharging condition. Excessive voltage can damage the battery, sensitive electronics, and lighting if left unaddressed.
Common Causes of P0563
- •Faulty voltage regulator in the alternator
- •Overcharging alternator
- •Poor ground or wiring connection at the alternator/battery
- •Faulty battery
- •Corroded battery terminals
- •PCM or charging-control module fault
P0563 on Jeep by Model
Jeep Wrangler(1 issue)
- eTorque Belt-Starter Generator (BSG) / 48V Power Pack Failure — Charging & No-Start2018-2024
eTorque (mild-hybrid) Wranglers replace the conventional alternator/starter with a 48V belt-driven motor-generator (BSG/MGU) plus a 48V power pack unit (PPU) and a 12V system. Owners report charging-system failures, battery warning lights, rough/failed auto-starts during stop-start cycling, voltage drops, stalling, and no-starts. The most common culprit is the 48V PPU rather than the MGU itself, though both fail. The MGU/BSG (Mopar 68452771AF) is expensive and, once replaced, must be programmed with the dealer scan tool or it will not function. Components fall under the 8-year/80k-mile hybrid warranty, but out-of-warranty repairs are costly.
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View P0563 across all makes →Frequently Asked Questions
What does P0563 mean on Jeep?▼
P0563 stands for "System Voltage High." This code indicates the engine computer detected that the vehicle's system (battery) voltage is higher than the normal operating range. The PCM monitors charging system voltage, and persistently high voltage usually points to an overcharging condition. Excessive voltage can damage the battery, sensitive electronics, and lighting if left unaddressed. On Jeep specifically, this code is documented across 1 model.
What causes P0563 on Jeep vehicles?▼
Common causes on Jeep: Faulty voltage regulator in the alternator, Overcharging alternator, Poor ground or wiring connection at the alternator/battery, Faulty battery, Corroded battery terminals. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0563 on a Jeep?▼
Repair costs vary widely depending on the root cause and specific Jeep model.
Which Jeep models have P0563 documented?▼
Au7o has documented P0563 on 1 Jeep model: Wrangler.