OBD Guide
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P1FAD

Hybrid/EV Battery Interface Control Module 7 Read Only Memory Performance

P1FAD is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Interface Control Module 7 Read Only Memory Performance. Common causes: battery management module malfunction, problems with the module software. 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 power or operating efficiency
  • System transition to emergency mode
  • Battery charging problems
  • Incorrect battery level readings

Causes

  • Battery management module malfunction
  • Problems with the module software
  • Permanent storage device damage
  • Problems with module power supply
  • Corroded or damaged contacts

How to Fix

  1. Battery Management Module Diagnostics
  2. Checking connections and wiring harness
  3. Module software update
  4. Replace the battery management module if necessary
  5. Repair only from an authorized dealer

Related codes

P1FAEP1FAFP1FB0

FAQ

What does the P1FAD code mean?

P1FAD is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Interface Control Module 7 Read Only Memory Performance

What causes a P1FAD error code?

The most common causes of P1FAD include: Battery management module malfunction; Problems with the module software; Permanent storage device damage; Problems with module power supply.

How do I fix a P1FAD diagnostic trouble code?

To fix P1FAD: Battery Management Module Diagnostics. Checking connections and wiring harness. Module software update. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1FAD?

Limited driving only, diagnose soon

How much does it cost to fix P1FAD?

The estimated repair cost for P1FAD is $167–556. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat