2021 Ford F-150 RaptorFACTORY OEM SERVICE PROCEDURE

Pinpoint Tests EB: Engine Brake: Introduction

This pinpoint test is intended to diagnose the following:

  • Engine brake switch
  • Harness circuits: EBIS and VPWR
  • PCM (12A650)
Fig 1: Engine Brake Switch Connector
G12084061Courtesy of FORD MOTOR CO.
Pin Circuit
4 EBIS (Engine Brake Input Signal)
1 VPWR (Vehicle Power)
Fig 2: Powertrain Control Module-B (PCM-B) Connector
G13373325Courtesy of FORD MOTOR CO.
Pin Circuit
6 EBIS (Engine Brake Input Signal)
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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