OBD Guide
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P1E01

Hybrid/Electric Vehicle Battery 95 Circuit Performance

P1E01 is an OBD-II diagnostic trouble code meaning: Hybrid/Electric Vehicle Battery 95 Circuit Performance. Common causes: high voltage battery wear, problems with the battery management system (bms). Estimated repair cost: $167–889.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$167–889 (est.)

Symptoms

  • Reduced vehicle power
  • Switching to emergency mode
  • Warning messages on the instrument panel
  • Battery charging problems
  • Increased fuel consumption (in hybrids)

Causes

  • High voltage battery wear
  • Problems with the Battery Management System (BMS)
  • Damage to high voltage wires or connectors
  • Power electronics fault
  • Corrosion of contacts in the battery circuit

How to Fix

  1. Diagnosis of high-voltage battery condition
  2. Checking the Battery Management System (BMS)
  3. Inspection of high voltage connections and wiring
  4. Power electronics testing
  5. Replacing damaged components
  6. Repair only from an authorized dealer

Related codes

P1E00P1E02P0A7D

FAQ

What does the P1E01 code mean?

P1E01 is an OBD-II diagnostic trouble code that indicates: Hybrid/Electric Vehicle Battery 95 Circuit Performance

What causes a P1E01 error code?

The most common causes of P1E01 include: High voltage battery wear; Problems with the Battery Management System (BMS); Damage to high voltage wires or connectors; Power electronics fault.

How do I fix a P1E01 diagnostic trouble code?

To fix P1E01: Diagnosis of high-voltage battery condition. Checking the Battery Management System (BMS). Inspection of high voltage connections and wiring. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1E01?

Do not drive — repair immediately

How much does it cost to fix P1E01?

The estimated repair cost for P1E01 is $167–889. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat