1998 Ford Ranger EVFACTORY OEM SERVICE PROCEDURE

Power Windows DTCS

POWER WINDOWS DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC Source Module Perform Test
B1302 GEM TEST A: ALL POWER WINDOWS ARE INOPERATIVE Accessory Delay Relay Coil Ckt Failure
B1304 GEM TEST A: ALL POWER WINDOWS ARE INOPERATIVE Accessory Delay Relay Coil Ckt Short To Battery
B1313 GEM/CTM TEST A: ALL POWER WINDOWS ARE INOPERATIVE Battery Saver Relay Coil Ckt Failure
B1315 GEM/CTM TEST A: ALL POWER WINDOWS ARE INOPERATIVE Battery Saver Relay Coil Ckt Short To Battery
GEM NVM Configuration Failure
Vehicle speed calibration data is not programmed into GEM/CTM. Use NGS tester configuration card help screen to program tire size and axle ratio. Retest system operation. If DTC B2141 is still present, replace GEM/CTM and retest system operation.
C1751
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.