2002 Lincoln Navigator 4WDFACTORY OEM SERVICE PROCEDURE

Power Windows DTCS

POWER WINDOWS DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC Description Perform Test
B1302 Accessory Delay Relay Coil Circuit Failure B
B1304 Accessory Delay Relay Coil Circuit Short To Power B
B1313 Battery Saver Relay Coil Circuit Failure B
B1315 Battery Saver Relay Coil Circuit Short To Power B
B1342 ECU Defective Using NGS tester clear DTCs. Retrieve DTCs. If DTC B1342 is retrieved, replace GEM. See GENERIC ELECTRONIC MODULE
B1398 Driver Window One-Touch Window Relay Circuit Failure D
B1400 Driver Power Window One-Touch Window Relay Circuit Short To Power D
B1405 Driver Power Window Down Circuit Short To Power C
B1410 Driver Power Window Motor Circuit Failure C
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:

  • • 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.

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