ShopBaseFree forever shop management software for auto repair shops
Try ShopBase Free →
Home/DTC Codes/Chevrolet/Spark EV/2014-2016 Electric Motor/P2504
P2504

Charging System Voltage High

2014-2016 Chevrolet Spark EV Electric Motor

Critical SeverityPowertrainGeneric (SAE)

Description

Charging system output voltage exceeds maximum safe threshold.

Symptoms

  • Battery boiling/swelling
  • Bulbs burning out frequently
  • Check engine light
  • Electrical component damage

Common Causes

  • Failed voltage regulator
  • ECM charging control fault
  • Ground strap issue

Diagnostic Steps

  1. Measure charging voltage at various RPM
  2. Check voltage regulator
  3. Inspect ground straps

Repair Notes

Replace alternator or voltage regulator. Check and repair grounds. Overcharging can damage expensive electronics.

Related Codes

P2502Charging System VoltageP2503Charging System Voltage Low

Other Powertrain Codes

P2504 on Other Vehicles

Chevrolet Astro

1995-2005 4.3L V6 Vortec

Chevrolet Avalanche

2002-2006 5.3L V8 Vortec

Chevrolet Avalanche

2002-2006 8.1L V8 Vortec

Chevrolet Avalanche

2007-2013 5.3L V8 Vortec

Chevrolet Avalanche

2007-2013 6.0L V8 Vortec

Chevrolet Aveo

2012-2018 1.6L I4

Chevrolet Beat

2018-2021 1.2L I4

Chevrolet Beretta

1990-1996 2.2L I4

Common Questions

What does code P2504 mean on a 2014-2016 Chevrolet Spark EV?

P2504 stands for "Charging System Voltage High". Charging system output voltage exceeds maximum safe threshold.

What are the symptoms of P2504 on a Chevrolet Spark EV?

Common symptoms of P2504 include: Battery boiling/swelling, Bulbs burning out frequently, Check engine light, Electrical component damage.

What causes P2504 on a 2014-2016 Chevrolet Spark EV?

Common causes of P2504 include: Failed voltage regulator, ECM charging control fault, Ground strap issue.

View Labor Times | View Torque Specs | View Fluid Specs