2018 Ford Fusion Energi PlatinumFACTORY OEM SERVICE PROCEDURE

DTC P0352 - Ignition Coil B Primary Control Circuit/Open

P0352 - IGNITION COIL B PRIMARY CONTROL CIRCUIT/OPEN

Description:  This DTC sets when the PCM does not receive a valid ignition diagnostic monitor (IDM) pulse signal from the ignition module in the PCM.
Possible Causes: 
  • VPWR circuit open
  • VPWR circuit short to ground
  • COP2 circuit open
  • COP2 circuit short to ground
  • COP2 circuit short to voltage
  • Damaged coil
Diagnostic Aids:  When checking functionality of the coil driver circuit, crank the engine using the engine cranking diagnostic mode. Refer to DIAGNOSTIC MODES .
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST JF .
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

When to See a Mechanic

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

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

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty
Get a Free Quote

No obligation. See pricing before you book.