OBD Guide

P0C30

Hybrid/EV Battery Pack State of Charge High

P0C30 is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Pack State of Charge High. Common causes: charge control system malfunction, problems with battery voltage/temperature sensors. Estimated repair cost: $56–278.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–278 (est.)

Symptoms

  • Hybrid system power reduction
  • Reducing electric range
  • Warning messages on the instrument panel
  • Forced transition to internal combustion engines
  • Charging speed limit

Causes

  • Charge control system malfunction
  • Problems with battery voltage/temperature sensors
  • Regenerative braking malfunctions
  • Battery cell degradation
  • BMS Software Errors

How to Fix

  1. High Voltage System Diagnostics
  2. Checking SOC and Temperature Sensors
  3. BMS (Battery Management System) data analysis
  4. Charge Management System Calibration
  5. BMS module software update

Related codes

Error P0C30 by Vehicle Brand

FAQ

What does the P0C30 code mean?

P0C30 is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Pack State of Charge High

What causes a P0C30 error code?

The most common causes of P0C30 include: Charge control system malfunction; Problems with battery voltage/temperature sensors; Regenerative braking malfunctions; Battery cell degradation.

How do I fix a P0C30 diagnostic trouble code?

To fix P0C30: High Voltage System Diagnostics. Checking SOC and Temperature Sensors. BMS (Battery Management System) data analysis. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0C30?

Limited driving only, diagnose soon

How much does it cost to fix P0C30?

The estimated repair cost for P0C30 is $56–278. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat