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Anonymous Posted on Nov 11, 2015
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Detailed instruction on replacing ford GEM

Looking for instruction on replacing generic electrical module

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Jeff Armer

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  • Ford Master 15,575 Answers
  • Posted on Nov 11, 2015
Jeff Armer
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It's not that complicated , disconnect all the connectors ,unbolt the GEM from it's mounting bracket ,install in the reverse order . The only hard part is if it needs to be programmed . On your vehicle ford calls it a vehicle The vehicle security module controls the following systems:

  • perimeter alarm
  • remote keyless entry (and panic feature)
  • computer-operated locks
  • auto lamps
  1. NOTE: Prior to removal of the vehicle security module, it is necessary to upload module configuration information to a diagnostic tool. This information needs to be downloaded into the new module once installed. For additional information, refer to Section 418-01 .
    Disconnect the battery. For additional information, refer to Section 414-01 .
  1. Remove the pushpin and the RH interior kick panel.
  1. Remove the glove compartment. For additional information, refer to Section 501-12 .
  1. Disconnect the three vehicle security module electrical connectors.
Configurable Modules The vehicle contains the following modules that are configurable:
  • vehicle security module
  • 4-wheel anti-lock brake/traction control (ABS/TC) module or stability assist module (if equipped)
  • electronic automatic temperature control (EATC) module
  • instrument cluster
  • powertrain control module (PCM)
  • driver seat module (DSM)
  • tire pressure monitor module
  • vehicle dynamics module
  • power liftgate module
  • temperature-controlled seat module

  • Anonymous Nov 22, 2015

    you say needs to upload module configuration information to a diagnostic tool. is there an iphone app for that if not whats a good one my me I only work on my car

  • Jeff Armer Nov 22, 2015

    Sorry ,but a dealer scan tool is the only thing that will do that.

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Where is the body control mod. on a 2000 excursion?
Generic Electronic Module (GEM)-Generic Electronic/Central Timer (GEM/CTM) Removal
NOTE: The GEM must be reconfigured upon replacement. Refer to the scan tool help screen on the Ford Service Function (FSF) card to program tire size and axle ratio.
  1. CAUTION: Electronic modules are sensitive to electrical charges. If exposed to these charges, damage may result.Disconnect the battery ground cable. For additional information, refer to Section 414-01.
  1. CAUTION: Use care when removing the instrument panel steering column cover (044F08) or damage to the cover locating tab may occur.Remove the instrument panel steering column cover.
    1. Unlock the retainers.
    1. Remove the instrument panel steering column cover.
  1. Disconnect the bulkhead connectors from the instrument panel fuse junction panel.
    1. Loosen the bolts.
    1. Disconnect the bulkhead connectors.
  1. Position the instrument panel fuse junction panel aside.
    1. Remove the nuts.
    1. Remove the bolts.
  1. Remove the generic electronic module/central timer module (GEM/CTM).
    1. Disconnect the electrical connectors.
    1. Remove the screws.
    1. Remove the GEM/CTM.
  1. To install, reverse the removal procedure.

I believe ford calls it a gem module.
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Jan 23, 2018 • Cars & Trucks
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Where is the body control module located on a 2002 Ford explorer XLT
It's called a GEM - generic electronic module .It is located behind center of the instrument panel .
SECTION 419-10: Multifunction Electronic Modules 2000 Explorer/Mountaineer Workshop Manual REMOVAL AND INSTALLATION Procedure revision date: 10/07/2004 Module - Generic Electronic (GEM)/Central Timer (CTM) Removal
  1. CAUTION: Electronic modules are sensitive to static electrical charges. If exposed to these charges, damage may result. Depower the supplemental restraint system (SRS). For additional information, refer to Section 501-20B .
  1. Remove the audio unit. For additional information, refer to Section 415-01 .
  1. Remove the center instrument panel finish panel.
    1. Remove the screws.
    1. Remove the center instrument panel finish panel.
    • Disconnect the electrical connectors.
  1. Remove the GEM/CTM.
    1. Remove the screw.
    1. Disconnect the four connectors from the GEM/CTM.
    1. Remove the GEM/CTM.
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Feb 18, 2017 • 2002 Ford Explorer
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Where is the BCM located on a 2000 lincoln navagator?
Ford , Lincoln , Mercury in that era called a GEM generic electronic module .
The generic electronic module (GEM) constantly monitors its subsystems for concerns. If a concern is found in one of the subsystems, the GEM will record the concern in the form of a diagnostic trouble code (DTC).
The ignition switch position is very important to the GEM function. Often times, erratic or unexpected GEM function can be traced to problems with these GEM inputs.
The GEM controls the following features:
  • Wipers/washers (front/rear).
  • Warning chimes.
  • Battery saver.
  • Illuminated entry and courtesy lamps.
  • Driver power window.
  • Accessory delay.
  • 4-wheel drive.
  • Heated back lite/mirror.
Generic Electronic Module (GEM) C239
Behind center of I/P syj~tr~en~file=ani_caut.gif~gen~ref.gif CAUTION: Prior to removal of the module, it is necessary to upload module configuration information to scan tool. This information needs to be downloaded into the new module once installed. For additional information, refer to Section 418-01 .
syj~tr~en~file=ani_caut.gif~gen~ref.gif CAUTION: Electronic modules are sensitive to electrical charges. If exposed to these charges, damage may result.
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Jul 02, 2016 • Lincoln Cars & Trucks
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Where is the body control module located on a 2001 ford explorer
In this model year Ford calls the BCM- Generic Electronic Module (GEM) It is located , Behind center of I/P !
 Module - Generic Electronic (GEM)/Central Timer (CTM) Removal
  1. syn~tr~en~file=ani_caut.gif~gen~ref.gif CAUTION: Electronic modules are sensitive to static electrical charges. If exposed to these charges, damage may result.
    Depower the supplemental restraint system (SRS). For additional information, refer to Section 501-20B .
  1. Remove the audio unit. For additional information, refer to Section 415-01 .
  1. Remove the center instrument panel finish panel.
    1. Remove the screws.
    1. Remove the center instrument panel finish panel.
    • Disconnect the electrical connectors.
Remove the GEM/CTM.
  1. Remove the screw.
  1. Disconnect the four connectors from the GEM/CTM.
  1. Remove the GEM/CTM.
  • Installation
    1. NOTE: When the battery is disconnected and reconnected, some abnormal drive symptoms may occur while the vehicle relearns its adaptive strategy. The vehicle may need to be driven 16 km (10 mi) or more to relearn the strategy.
      To install, reverse the removal procedure
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    May 16, 2016 • Ford Cars & Trucks
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    2003 ford ranger windshield wiper won't come on. Replaced fuse, relays, switch and motor. I'm lost. No sign of an SJB in this truck.
    No smart junction box , GEM - generic electronic module ! this module energizes the relays in the battery junction box ! The gem module is behind the center of the dash !
    Generic Electronic Module (GEM) Removal and Installation
    1. > CAUTION: Prior to removal of the generic electronic module (GEM), it is necessary to upload module configuration information to the diagnostic tool. This information needs to be downloaded into the new module once installed. For additional information, refer to Section 418-01 .
      Depower the supplemental restraint system (SRS). For additional information, refer to Section 501-20B .
    1. Remove the radio chassis. For additional information, refer to Section 415-01 .
    1. Remove the center instrument panel finish panel.
      1. Remove the screws.
      1. Remove the center instrument panel finish panel.
      • Disconnect electrical connectors.
      • Module Controlled Functions The multifunction modules consist of the following:
        • generic electronic module (GEM)
        • central security module
        The GEM controls the following features:
        • front wiper and washer
        • warning chime
        • battery saver
        • illuminated entry and interior lighting
        • driver one-touch down power window (optional)
        • battery saver relay
        • door ajar warning indicator lamp
        • safety belt warning indicator lamp
        The central security module controls the following features:
        • remote keyless entry
        • computer-operated lock system
        • trim switch unlock inhibit
        It's more then likely to have DTC'S diagnostic trouble codes stored in it's memory !
      • B1431 Wiper Brake/Run Relay Circuit Failure GEM REFER to Section 501-16 . B1432 Wiper Brake/Run Relay Circuit Short to Battery GEM REFER to Section 501-16 . B1434 Wiper Hi/Low Speed Relay Circuit Failure GEM REFER to Section 501-16 . B1436 Wiper Hi/Low Speed Relay Circuit Short to Battery GEM REFER to Section 501-16 . B1438 Wiper Mode Select Switch Circuit Failure GEM REFER to Section 501-16 . B1441 Wiper Mode Select Switch Circuit Short to Ground GEM REFER to Section 501-16 . B1446 Wiper Park Sense Circuit Failure GEM REFER to Section 501-16 . B1450 Wiper Wash/Delay Switch Circuit Failure GEM REFER to Section 501-16 . B1453 Wiper Wash/Delay Switch Circuit Short to Ground GEM REFER to Section 501-16 . B1458 Wiper Washer Pump Motor Relay Circuit Failure GEM REFER to Section 501-16 . B1460 Wiper Washer Pump Motor Relay Circuit Short to Battery GEM REFER to Section 501-16 . B1462 Safety Belt Switch Circuit Failure GEM REFER to Section 413-09 . B1466 Wiper Hi/Low Speed Not Switching GEM REFER to Section 501-16 . B1473 Wiper Low Speed Circuit Motor Failure GEM REFER to Section 501-16 . B1476 Wiper High Speed Circuit Motor Failure GEM REFER to Section 501-16 Your wipers do not work at all ? did you check this fuse Central Junction Box (CJB) fuse 16 (30A)
        • The wipers are inoperative
        • Central junction box (CJB) fuse:
          • 16 (30A)
        • Circuitry.
        • GEM.
        • Multifunction switch.
        • Wiper run/park relay.
        • Wiper HI/LO relay.
        • Wiper motor.
        • GO to Pinpoint Test A .
        Before replacing parts you need to test , check for codes !
    Read full answer
    Mar 09, 2015 • Ford Cars & Trucks
    5helpful
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    Cant find generic electronic module
    You probably have a door ajar switch that is bad. You can check the grounds coming from the switch that goes to the gem module and it should change from open to ground when you open and close the door. If you really think the gem module is bad or want to check it with your scematic. The gem module should be piggy backed behind the fuse panel inside your pick if you remove the fuse panel inside your truck you should be able to access the module but you have to remove the fuse panel completely from the truck to remove the gem module. Good luck with your problem.
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    Apr 17, 2009 • Ford F-250 Cars & Trucks
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    All windows will not work on my 2005 ford taurus
    2002 taurus. don't have 2005. Sorry.

    Could be your GEM module. Call your dealer and ask if your 2005 has GEM module. It's expensive so be sure it is problem first.

    Dealer can test with NGS tool.

    CAUTION: Once the new module is installed, it is necessary to download the module configuration information from the diagnostic tool equipment into the new module. For additional information, refer to Section 418-01 .

    Principles of Operation
    The generic electronic module (GEM) constantly monitors its subsystems for concerns. If a concern is found in one of the subsystems, the GEM will record the concern in the form of a diagnostic trouble code (DTC).
    The ignition switch position is very important to the GEM functionality. Erratic or unexpected GEM functions can often be traced to problems with these ignition GEM inputs.
    The GEM controls a variety of systems:
    • windshield wipers
    • courtesy lamps
    • warning chimes
    • keyless entry
    • interior and exterior lamps
    • power windows
    • parking brake actuator warning chime
    Inspection and Verification
    1. Verify the customer concern by operating the system.
    1. Visually inspect for obvious signs of mechanical and electrical damage.


    Visual Inspection Chart Electrical
    • Central junction box (CJB) fuse 216 (15A)
    • Damaged wiring harness
    • Loose or corroded connector(s)
    • Circuitry
    • Generic electronic module (GEM)
    Read full answer
    Mar 27, 2009 • 2005 Ford Taurus
    2helpful
    1answer

    I have a 2003 Ford Taurus it got wrecked on the driver side I had to replace the driver side door. When I replaced it the power windows on all the doors and dome light won't work now. Any help.
    I think you may have lost communication with the GEM module. Only dealer can reestablish.
    Generic Electronic Module (GEM) Removal and Installation
    1. s2h~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Prior to removal of the module, it is necessary to upload module configuration information to the appropriate diagnostic tool. This information needs to be downloaded into the new module once installed. For additional information, refer to Section 418-01 .
      s2h~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Electronic modules are sensitive to static electrical charges. If exposed to these charges, damage may result.
    2. ---------------------------------------------------------------------
    Module Controlled Functions NOTE: Prior to removal of the generic electronic module (GEM), it is necessary to upload module configuration information to the diagnostic tool. This information needs to be downloaded into the new module once installed. For additional information, refer to Section 418-01 .
    NOTE: Electronic modules are sensitive to electrical charges. If exposed to these charges, damages may result.
    The generic electronic module (GEM) is the only multi-function module on this vehicle.
    The GEM constantly monitors its subsystems for concerns. If a concern is found in one of the subsystems, the GEM will record the concern in the form of a diagnostic trouble code (DTC).
    The ignition switch position is very important to the GEM functionality Erratic or unexpected GEM functions can often be traced to problems with these GEM inputs.
    The GEM controls a variety of systems:
    • instrument cluster warning indication and chimes
    • interior courtesy lamp control
    • automatic headlamp control
    • daytime running lamps (DRL)
    • wiper and washer (front only)
    • heated rear window
    • one-touch down power window
    • delayed accessory
    • power door locks (including SMART, autolocking and luggage compartment lid release)
    • remote keyless entry
    • perimeter anti-theft
    Read full answer
    Mar 06, 2009 • 2003 Ford Taurus
    1helpful
    1answer

    I need installation directions for installation of a gem module
    here it is but you must have it configured.

    Generic Electronic Module (GEM) —Generic Electronic/Central Timer (GEM/CTM) Removal
    NOTE: The GEM must be reconfigured upon replacement. Refer to the scan tool help screen on the Ford Service Function (FSF) card to program tire size and axle ratio.
    1. syo~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Electronic modules are sensitive to electrical charges. If exposed to these charges, damage may result.
      Disconnect the battery ground cable. For additional information, refer to Section 414-01 .
    2. syo~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Use care when removing the instrument panel steering column cover (044F08) or damage to the cover locating tab may occur.
      Remove the instrument panel steering column cover.
      1. Unlock the retainers.
      1. Remove the instrument panel steering column cover.
    3. Disconnect the bulkhead connectors from the instrument panel fuse junction panel.
      1. Loosen the bolts.
      1. Disconnect the bulkhead connectors.
    4. Position the instrument panel fuse junction panel aside.
    5. Remove the nuts.
    6. Remove the bolts.
    7. Remove the generic electronic module/central timer module (GEM/CTM).
      1. Disconnect the electrical connectors.
      1. Remove the screws.
      1. Remove the GEM/CTM.
    Read full answer
    Feb 20, 2009 • 2000 Ford F250 Super Duty Crew Cabs
    3helpful
    1answer

    2005 FORD ESCAPE
    it's by the gas pedal.

    The multifunction module consists of the generic electronic module (GEM).
    The GEM controls the following features:
    • interval rear window wiper
    • battery saver
    • illuminated entry
    • headlamp control
    • interior lamp control
    • power door locks
    • remote keyless entry (RKE)
    • accessory delay
    • perimeter anti-theft system
    • door ajar output control
    Generic Electronic Module (GEM) 2003 escape Removal and Installation
    1. NOTE: Prior to removal of the GEM, it is necessary to upload module configuration information to a diagnostic tool. This information needs to be downloaded into the new module once installed. For additional information, refer to Section 418-01 .
      Disconnect the battery ground cable. For additional information, refer to Section 414-01 .
    1. Remove the pin-type retainer and the lower shield.
    6897dd8.gif
    1. Position the RH and LH carpet aside from the center tunnel.
    2. Disconnect the GEM electrical connectors.
    29785c6.gif
    1. Remove the GEM
      1. Pull back the insulation and remove the nuts.
      1. Remove the GEM.
    2. To install, reverse the removal procedure.
      • Configure the GEM. Refer to Section 418-01 .
    Read full answer
    Feb 06, 2009 • 2003 Ford Escape
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