OBD Guide

P1FB6

Hybrid/EV Battery Interface Control Module 10 Random Access Memory Performance

P1FB6 is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Interface Control Module 10 Random Access Memory Performance. Common causes: control module software failure, damage to module ram. 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 hybrid system efficiency
  • The car goes into emergency mode
  • Problems with charging a high-voltage battery
  • Reduced power or unstable operation

Causes

  • Control module software failure
  • Damage to module RAM
  • Problems with module power supply
  • Corroded or damaged connectors
  • Overheating of electronic components

How to Fix

  1. Diagnose the control module using a scanner
  2. Try to reflash or update the module software
  3. Check the integrity of the wiring harness and connectors
  4. Replace the battery management module if necessary
  5. Repair only from an authorized dealer

Related codes

FAQ

What does the P1FB6 code mean?

P1FB6 is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Interface Control Module 10 Random Access Memory Performance

What causes a P1FB6 error code?

The most common causes of P1FB6 include: Control module software failure; Damage to module RAM; Problems with module power supply; Corroded or damaged connectors.

How do I fix a P1FB6 diagnostic trouble code?

To fix P1FB6: Diagnose the control module using a scanner. Try to reflash or update the module software. Check the integrity of the wiring harness and connectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1FB6?

Limited driving only, diagnose soon

How much does it cost to fix P1FB6?

The estimated repair cost for P1FB6 is $167–556. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat