OBD Guide
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P1AFB

Drive Motor 1 Control Module Programmable Logic Device Security Code

P1AFB is an OBD-II diagnostic trouble code meaning: Drive Motor 1 Control Module Programmable Logic Device Security Code. Common causes: incorrect control module software, attempted unauthorized access to the system. Estimated repair cost: $56–167.

Severity
🔴 High
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced engine power
  • The car goes into emergency mode
  • Problems starting the engine
  • Unstable engine operation

Causes

  • Incorrect control module software
  • Attempted unauthorized access to the system
  • Engine control module damage
  • Problems with module power supply
  • Errors in the firmware

How to Fix

  1. Check the status of the engine control module
  2. Update module software
  3. Check the integrity of the wiring harness
  4. Check the power supply to the control module
  5. Contact your dealer to reflash the module

Related codes

P1AFAP1AFCP1AFD

FAQ

What does the P1AFB code mean?

P1AFB is an OBD-II diagnostic trouble code that indicates: Drive Motor 1 Control Module Programmable Logic Device Security Code

What causes a P1AFB error code?

The most common causes of P1AFB include: Incorrect control module software; Attempted unauthorized access to the system; Engine control module damage; Problems with module power supply.

How do I fix a P1AFB diagnostic trouble code?

To fix P1AFB: Check the status of the engine control module. Update module software. Check the integrity of the wiring harness. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1AFB?

Yes, but get it checked soon

How much does it cost to fix P1AFB?

The estimated repair cost for P1AFB is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat