OBD Guide

P1FB5

Hybrid/EV Battery Interface Control Module 9 Random Access Memory Performance

P1FB5 is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Interface Control Module 9 Random Access Memory Performance. Common causes: battery interface control module internal failure, problems with module power supply. Estimated repair cost: $167–556.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$167–556 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced performance of the hybrid system
  • Incorrect display of battery charge level
  • Random hybrid system malfunctions
  • The vehicle goes into emergency mode

Causes

  • Battery Interface Control Module Internal Failure
  • Problems with module power supply
  • Corroded or damaged contacts
  • Software error in the module
  • Overheating of electronic components

How to Fix

  1. Battery Interface Control Module Diagnostics
  2. Checking the power supply and grounding circuits of the module
  3. Module software update
  4. Replacing the Battery Interface Control Module if necessary
  5. Repair only from an authorized dealer

Related codes

FAQ

What does the P1FB5 code mean?

P1FB5 is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Interface Control Module 9 Random Access Memory Performance

What causes a P1FB5 error code?

The most common causes of P1FB5 include: Battery Interface Control Module Internal Failure; Problems with module power supply; Corroded or damaged contacts; Software error in the module.

How do I fix a P1FB5 diagnostic trouble code?

To fix P1FB5: Battery Interface Control Module Diagnostics. Checking the power supply and grounding circuits of the module. Module software update. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1FB5?

Limited driving only, diagnose soon

How much does it cost to fix P1FB5?

The estimated repair cost for P1FB5 is $167–556. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat