Pinpoint Test B : The Defrost System Does Not Shut Off Automatically: Notes

2021 Ford Edge SE, 4WDSECTION Notes
WARNING: This page is about a different car, the 2020 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

Refer to Heated Window for schematic and connector information.

Normal Operation and Fault Conditions 

REFER to: Glass, Frames and Mechanisms - System Operation and Component Description .

DTC Fault Trigger Conditions 

DTC Description Fault Trigger Conditions
B1C83:14 Rear Defog Relay: Circuit Short To Ground or Open This DTC sets when the FCIM detects an open or short to ground on the rear window defrost relay control circuit.

Possible Causes 

  • Wiring, terminals or connectors
  • BJB
  • FCIM
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

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

Affiliate disclosure: We may earn a commission at no extra 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.