OBD Guide

P1E85

Hybrid/Electric Vehicle Battery 90 Circuit

P1E85 is an OBD-II diagnostic trouble code meaning: Hybrid/Electric Vehicle Battery 90 Circuit. Common causes: damage to high voltage cables, battery control unit malfunction. Estimated repair cost: $167–889.

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

Symptoms

  • Reduced electric range
  • Starting an internal combustion engine when the charge is low
  • Warning messages on the instrument panel
  • Reduced vehicle power
  • The car goes into emergency mode

Causes

  • Damage to high voltage cables
  • Battery control unit malfunction
  • Problems with contacts in connectors
  • Battery cell degradation
  • Control system software failures

How to Fix

  1. High voltage system diagnostics
  2. Checking the integrity of cables and connectors
  3. Scanning for errors in the battery control unit
  4. Replacing damaged components
  5. Control system software update
  6. Repair only from an authorized dealer

Related codes

FAQ

What does the P1E85 code mean?

P1E85 is an OBD-II diagnostic trouble code that indicates: Hybrid/Electric Vehicle Battery 90 Circuit

What causes a P1E85 error code?

The most common causes of P1E85 include: Damage to high voltage cables; Battery control unit malfunction; Problems with contacts in connectors; Battery cell degradation.

How do I fix a P1E85 diagnostic trouble code?

To fix P1E85: High voltage system diagnostics. Checking the integrity of cables and connectors. Scanning for errors in the battery control unit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1E85?

Do not drive — repair immediately

How much does it cost to fix P1E85?

The estimated repair cost for P1E85 is $167–889. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat