OBD Guide
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P1FAB

Hybrid/EV Battery Interface Control Module 10 Not Programmed

P1FAB is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Interface Control Module 10 Not Programmed. Common causes: the control module was not programmed at production, module software failure. 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
  • Hybrid system power reduction
  • Limiting the operation of the electric motor
  • Error message on the dashboard
  • Battery charging problems

Causes

  • The control module was not programmed at production
  • Module software failure
  • Problems with CAN bus communication
  • Failed software update
  • Physical damage to the module

How to Fix

  1. Check service history for recent work on the module
  2. Read all error codes and freeze frame data
  3. Check connections and wiring to the module
  4. Perform module programming procedure
  5. If necessary, replace the control module

Related codes

P1FACP1FADP0AA6

FAQ

What does the P1FAB code mean?

P1FAB is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Interface Control Module 10 Not Programmed

What causes a P1FAB error code?

The most common causes of P1FAB include: The control module was not programmed at production; Module software failure; Problems with CAN bus communication; Failed software update.

How do I fix a P1FAB diagnostic trouble code?

To fix P1FAB: Check service history for recent work on the module. Read all error codes and freeze frame data. Check connections and wiring to the module. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1FAB?

Limited driving only, diagnose soon

How much does it cost to fix P1FAB?

The estimated repair cost for P1FAB is $167–556. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat