2004 Ford Focus SVT, 2D HatchbackFACTORY OEM SERVICE PROCEDURE

Rear Window Defoggers

REAR WINDOW DEFOGGERS (GEM) DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC Description Perform Test
B1343 Heated backlite input circuit failure Go To PINPOINT TEST H: THE DEFROST SYSTEM IS INOPERATIVE .
B1349 Heated backlite relay short to battery Go To PINPOINT TEST H: THE DEFROST SYSTEM IS INOPERATIVE .
B1350 Heated backlite relay short to ground Go To PINPOINT TEST I: THE DEFROST SYSTEM WILL NOT SHUT OFF AUTOMATICALLY .
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.