OBD Guide

P1E9D

Hybrid/EV Battery Interface Control Module 3 Long Term Memory Performance

P1E9D is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Interface Control Module 3 Long Term Memory Performance. Common causes: control module software error, control module power problems. Estimated repair cost: $111–556.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$111–556 (est.)

Symptoms

  • Check engine light comes on
  • Reduced performance of the hybrid system
  • Incorrect battery level display
  • Deterioration of the dynamic characteristics of the car
  • Random hybrid system shutdowns

Causes

  • Control module software error
  • Control module power problems
  • Control module memory damage
  • Corroded or damaged connectors
  • High voltage battery fault

How to Fix

  1. Diagnostics of the control module using specialized equipment
  2. Checking the quality of connections and wiring harnesses
  3. Checking high voltage battery parameters
  4. Updating or flashing module software
  5. If necessary, replace the control module

Related codes

FAQ

What does the P1E9D code mean?

P1E9D is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Interface Control Module 3 Long Term Memory Performance

What causes a P1E9D error code?

The most common causes of P1E9D include: Control module software error; Control module power problems; Control module memory damage; Corroded or damaged connectors.

How do I fix a P1E9D diagnostic trouble code?

To fix P1E9D: Diagnostics of the control module using specialized equipment. Checking the quality of connections and wiring harnesses. Checking high voltage battery parameters. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1E9D?

Limited driving only, diagnose soon

How much does it cost to fix P1E9D?

The estimated repair cost for P1E9D is $111–556. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat