OBD Codes List

Diagnostic reference · U013F

U013F

Lost Communication With Pedestrian Alert Control Module

System
Network communication (U code)
Lamp
Check Engine Light
Category
Network Communications

What it means

U013F means Lost Communication With Pedestrian Alert Control Module.

Where it lives

For U013F, the description names the module as the part involved.

Check these first

  • A failed Pedestrian Alert Control Module
  • Corroded or damaged module connector pins
  • A power or ground loss at the module
  • A CAN bus fault that hides the module

What to do next

  1. Scan all modules for communication codes
  2. Inspect the Pedestrian Alert Control Module connector pins
  3. Check the module power and ground feeds
  4. Check the CAN bus wiring for opens and shorts
  5. Replace the Pedestrian Alert Control Module if the bus and feeds test good
  6. Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.