2001 Ford Explorer ChassisFACTORY OEM SERVICE PROCEDURE

Rear Window Defogger DTCS

REAR WINDOW DEFOGGER DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION

DTC Description Test
B1342 GEM Defective Clear DTCs. Retrieve DTCs. If DTC B1342 is retrieved again, replace GEM and recheck system operation.
B1345 Rear Window Defogger Input Circuit Short To Ground B
B1347 Rear Window Defogger Relay Circuit Failure B
B1349 Rear Window Defogger Relay Circuit Short To Battery B
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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