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Henry Cornelison Posted on Sep 19, 2018
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Location of GEM/CTM module in a 2004 Mercury Mountaineer

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Jeff Armer

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  • Mercury Master 15,575 Answers
  • Posted on Sep 19, 2018
Jeff Armer
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Your vehicle doesn't have GEM / CTM . Your vehicle has a VSM - vehicle security module.

CAUTION: 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. Refer to Module Configuration in this section.
It is located behind the

  1. right rear quarter trim panel.
SECTION 418-00: Module Communications Network 2003 Explorer/Mountaineer Workshop Manual DESCRIPTION AND OPERATION Procedure revision date: 06/18/2002 Module Controlled Functions The multifunction electronic control modules consist of the following:
  • vehicle security module
  • driver seat module (DSM)

Principles of Operation
The vehicle security module controls the remote keyless entry (RKE) system and power lock system. For additional information, refer to Section 501-14 .
The driver seat module (DSM) allows automatic positioning of the memory driver seat, both outside memory mirrors and the memory pedals to three programmable positions. For additional information, refer to Section 501-10 .

Free wiring diagrams here
http://www.bbbind.com/free-tsb Enter vehicle info. year , make , model an engine size. Under system click on body & accessories ,then under subsystem click on body controls . Click the search button then the blue link .

5 Related Answers

emissionwiz

Marvin

  • 85242 Answers
  • Posted on Mar 23, 2009

SOURCE: 2002 mercury mountaineer 4.0 starter relay location

The power distribution box is
located in the engine compartment.
The power distribution box contains
high-current fuses that protect your
vehicle’s main electrical systems
from overloads.
The starter relay is in position #56 of that box.

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Anonymous

  • 161 Answers
  • Posted on Jun 15, 2009

SOURCE: Location of GEM Module on 1998 Ranger

i am almost sure it is in steering col area by firewall. but call any part store like auto zone and they can print it out and tell you if your ford dealer wont. but on the fords they usualy are all in the drivers steering area sometimes way up by fire wall

Anonymous

  • 2 Answers
  • Posted on Jul 11, 2009

SOURCE: cabin filter location mercury mountaineer

There is one for the 2003 Mercury Mountaineer. If you are smellign a "vinegar" odor, mix a solution of 1 part bleach to 3 parts water and pour it down the grid at the base of the windshield. It will take care of the smell.

autotherapis

Rich Norman

  • 502 Answers
  • Posted on Nov 22, 2009

SOURCE: I want 2 change 2004 mercury mountaineer transmission fluid

The best way to change it is to flush it out You can do it yourself, but I do not recommend. A shop that is good like a Monro or Firestone usually charges about 100 bucks to flush and that includes the fluid. If you do it yourself, you will save about 60 dollars, but you risk damage to your radiator.

you will need a hose and an adapter. you back out the lower, or upper cooler line for your trans, whichever is the easiest to get to, (Some trucks have an auxiliary engine oil cooler, but make sure you are flushing the trans lines) put the adapter into the rad where you removed the line, and put a hose from each one down into a bucket. Have about 14 qt's of ford trans fluid ready. Put the funnel into the trans dip stick, and start the engine. pour the qts into the dipstick tube while the old fluid is pumped into the bucket. When you have about two gallons pumped into the bucket shut the engine off and reattach the line into the radiator. start up the engine and check your level. Fill with additional fluid if needed.

note: some say you should drop the pan. two things, you only change half the fluid when you do it that way, and second if you need to change the filter because it is clogged, it is too late for the transmission. The filter is only there to protect the valve body, not keep the fluid clean.

Hope this helps

Anonymous

  • 395 Answers
  • Posted on May 20, 2010

SOURCE: 2004 mercury mountaineer wont start will turn over not crank

the igintion switch is bad

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1helpful
2answers

Where is location of the GEM module on 2002 Mercury Mountaineer? How long does it take to replace it? Does it have to be reprogrammed?

depends on when it was built for location Vehicles Built After 03/2002 it is behind the radio. Vehicles Built Before 03/2002 it is under the passenger side of the dash behind the pcm. time depends on location and your skill level [easiest location less than 1 hr ] and yes to programming this company --ford dealer --or an auto repair shop in your area can give you estimates https://moduleexperts.com/gem-modules/?gclid=Cj0KCQjw3f6HBhDHARIsAD_i3D8dSWrY2Pb-BieP04uo_k1ym67nXPQP5BwEJfVhhlYwCNg2AA4OxJ4aAiq9EALw_wcB
0helpful
1answer

2000 ranger wipers dont work

Do you know what a wiring diagram is ? How to use a DVOM - digital volt ohm meter to test automotive electrical circuit's ? Do you know anything about automotive electrical ? Free wiring diagrams here http://www.bbbind.com/free-tsb Enter vehicle info. Year , make , model and engine size . Under system click on body & accessories , then under subsystem click on wiper/washer . Click the search button then the blue link . Looking at the diagram I see the wipers are controlled by an electronic module (GEM) . The switch is an input to the GEM which controls relays to turn on the wipers . Do you know what DTC'S - diagnostic trouble codes are ?
B1431 Wiper Brake/Run Relay - Circuit Failure GEM/CTM GO to Pinpoint Test A . B1432 Wiper Brake/Run Relay Short to Battery GEM/CTM GO to Pinpoint Test A . B1434 Wiper Hi/Lo Speed Relay Circuit Failure GEM/CTM GO to Symptom Chart. B1436 Wiper Hi/Lo Speed Relay Circuit Short to Battery GEM/CTM GO to Pinpoint Test C . B1438 Wiper Mode Select Switch Circuit Failure GEM/CTM GO to Symptom Chart. B1441 Wiper Mode Select Switch Input Short to Ground GEM/CTM GO to Symptom Chart. B1446 Wiper Park Sense Circuit Failure GEM/CTM GO to Pinpoint Test D . B1450 Wiper/Washer Interval Delay Switch Input Circuit Failure GEM/CTM GO to Symptom Chart. B1453 Wiper/Washer Interval Delay Switch Input Short to Ground GEM/CTM GO to Symptom Chart. B1458 Wiper/Washer Pump Motor Relay Circuit Failure GEM/CTM GO to Pinpoint Test E . B1460 Wiper/Washer Pump Motor Relay Coil Short to Battery GEM/CTM GO to Pinpoint Test E . B1462 Seat Belt Switch Circuit Failure GEM/CTM REFER to Section 413-09 . B1466 Wiper Speed Not Switching GEM/CTM GO to Pinpoint Test C . B1467 Wiper Hi/Low Speed Circuit Motor Short to Battery GEM/CTM GO to Symptom Chart. B1473 Wiper Low Speed Circuit Motor Failure GEM/CTM GO to Symptom Chart
Symptom Chart Condition Possible Sources Action
  • The Wipers Are Inoperative
  • Fuse(s).
  • Circuitry.
  • GEM/CTM.
  • Multi-function switch (13K359).
  • Wiper run/park relay.
  • Wiper HI/LO relay.
  • Wiper motor.
  • DTC B1431.
  • DTC B1432.
  • DTC B1438.
  • DTC B1450.
  • DTC B1840.
  • GO to Pinpoint Test A .
Your best bet , take it to a qualified repair shop.
0helpful
1answer

I have a 2002 mercury mountaineer, V6 4.0 2WD. Where is the GEM located?

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.
    • Remove the GEM/CTM.
      1. Remove the screw.
    1. Disconnect the four connectors from the GEM/CTM.
    1. Remove the GEM/CTM.
    2. 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.
Special Tool(s) Radio Removing Tool
415-001 (T87P-19061-A) Removal
  1. Remove the radio chassis.
    1. Insert Radio Removing Tool into the radio face plate and release the radio retaining clips.
    1. Pull outward on Radio Removing Tool to remove the radio chassis from the instrument panel.
    2. Remove the radio.
      1. Disconnect the electrical connectors.
      1. Disconnect the radio antenna lead in cable.
      1. Remove the radio.
1helpful
1answer

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.
0helpful
1answer

Location of the speed sensors on my 1999 ford explorer

Vehicle Speed Signal
The vehicle speed signal is generated by the rear anti-lock brake sensor and sent to the 4-wheel anti-lock brake system (4WABS) module. The 4WABS module sends the vehicle speed signal via circuit 679 (GY/BK) to all systems which require a vehicle speed signal input.
Speedometer
The electronic speedometer receives a speed signal from the 4WABS module.
GEM/CTM Diagnostic Trouble Code (DTC) Index
GEM/CTM Diagnostic Trouble Code (DTC) Index DTC Description DTC Caused By Action P0500 Vehicle Speed Signal Circuit Failure GEM REFER to Section 308-07A . Take your vehicle an have it diagnosed , before you buy parts you don't need . Just a suggestion , could be a wiring problem , the speedometer gauge , computer etc...
1helpful
1answer

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
    0helpful
    1answer

    Limited. What is causing battery drain?

    To find out what is draining the battery do a parasitic draw test . How To Perform Parasitic Draw Test EricTheCarGuy Test to be sure , before replacing GEM module .I would also have the GEM checked for DTC'S - diagnostic trouble codes . I would also check the battery saver relay .
    SECTION 417-02: Interior Lighting 2000 Explorer/Mountaineer Workshop Manual DESCRIPTION AND OPERATION Procedure revision date: 06/17/1999 Interior Lighting The interior lighting system consists of the following:
    • dome/map lamp
    • rear dome/cargo lamp
    • overhead console/map lamp
    • RH/LH vanity mirror
    • ash receptacle lamp
    • puddle lamps
    • interior lamp switches
    • interior lamp relay
    • dimmer module
    • battery saver relay
    • generic electronic module (GEM)
    Generic Electronic Module (GEM)/Central Timer Module (CTM) Controlled Functions
    The generic electronic module (GEM) is equipped on four-wheel drive vehicles with power windows. The central timer module (CTM) is equipped only on two-wheel drive vehicles without power windows.
    NOTE: GEM/CTM diagnostics are compatible with the scan tool.
    The GEM/CTM incorporates the functions of several different modules into one, and offers diagnostics to easily locate and repair concerns affecting the subsystems that it controls.
    The GEM/CTM constantly monitors the systems it controls and reports a concern in the form of a diagnostic trouble code (DTC). A DTC can be retrieved with the scan tool through the communication link.
    The scan tool is a menu-driven tester that allows the user to run specific tests. The scan tool can isolate faults in the GEM/CTM subsystems through a symptom-driven diagnostic procedure. Connecting the scan tool to the GEM/CTM communication link will not alert the GEM/CTM. If the GEM/CTM is "asleep" when the diagnostic connector is plugged in, the GEM/CTM must be "awakened". If the communication link cannot be established, turn the ignition to RUN.
    NOTE: The GEM/CTM has a sleep function to minimize battery consumption. During the sleep mode, the GEM/CTM turns off all outputs and monitors only the following:
    • door ajar (driver door, passenger door, liftgate, LH rear and RH rear doors).
    • key-in-ignition.
    • key in RUN or ACC.
    • two-step unlock switch (unarm switch).
    • digital TR sensor.
    • illuminated entry request (remote anti-theft personality [RAP] module).
    If a change of status occurs at one of these inputs while the GEM/CTM is "asleep", the GEM/CTM will "wake up." When the GEM/CTM awakens, it carries out an internal self-test, and begins normal operation. At this point, the GEM/CTM will have all of its functions operational.
    The GEM/CTM will go into the sleep mode immediately after both of the following conditions have been met:
    • key in OFF or key not in ignition.
    • after 45 minutes with no change in any wake-up input.
    The GEM/CTM control system has two modes of operation; the normal operating mode and the tester-dependent diagnostics mode.
    Normal operation of the GEM/CTM can detect errors. An integral part of normal GEM/CTM operation is continuous diagnostic capability. Continuous diagnostics detects errors and changes the GEM/CTM control strategy. There is no warning lamp for the GEM/CTM; therefore, a DTC concern will direct you to the GEM/CTM. Examples of faults that may be detected during normal operation include:
    NOTE: The GEM/CTM can only detect open circuit/short to GRD faults when the GEM/CTM is not energizing a load, and short to battery faults when the GEM/CTM is attempting to energize a load.
    • GEM/CTM continuous self-test (RAM, ROM, EEPROM, A/D checking).
    • output driver monitoring (open circuit/short to ground [GRD], short to power).
    • illogical combinations of input signals.

    0helpful
    1answer

    Ford Explorer wipers, power windows, doom lights won't work

    Are u assuming the GEM module is at fault ? Did you or your local auto electrician check for DTC'S - diagnostic trouble codes?
    GEM/CTM Wiggle Test Diagnostic Trouble Code (DTC) Index DTC Description DTC Caused By B1317 Battery Voltage HIGH GEM/CTM B1318 Battery Voltage Low GEM/CTM B1322 Driver Door Ajar Circuit Short to Ground GEM/CTM B1330 Passenger Door Ajar Short to Ground GEM/CTM B1352 Ignition Key-In Circuit Failure GEM/CTM B1410 Driver Power Window Motor Circuit Failure GEM B1438 Wiper Mode Select Switch Circuit Failure GEM/CTM B1441 Wiper Mode Select Switch Short to Ground GEM/CTM B1446 Wiper Park Sense Circuit Failure GEM/CTM B1450 Wiper/Wash Interval Delay Switch Input Circuit Failure GEM/CTM B1453 Wiper/Wash Interval Delay Switch Input Short to Ground GEM/CTM B1462 Seat Belt Switch Circuit Failure GEM/CTM B1577 Park Lamp Input Circuit Short to Battery GEM/CTM B1610 Illuminated Entry Input (From RAP Module) Circuit Short to Ground GEM/CTM
    Did you an your auto electrican check power an grounds for the GEM ? Voltage drop testing ? . Did you check power an ground circuits for the affected systems . Working when they want sounds more like a loose connection somewhere .
    ECM Inputs and Outputs Diagnosis
    Symptom Chart
    Symptom Chart Condition Possible Sources Action
    • The Wipers Are Inoperative
    • CJB Fuse 16 (30A).
    • Circuitry.
    • GEM/CTM.
    • Multi-function switch (13K359).
    • Wiper run/park relay.
    • Wiper HI/LO relay.
    • Wiper motor.
    • DTC B1431.
    • DTC B1432.
    • DTC B1438.
    • DTC B1450.
    • DTC B1840.
    • GO to Pinpoint Test A .

    Plus looking at GEM scan data on a factory scan tool .Too many people miss diagnose these system's because they don't have a clue .
    2helpful
    1answer

    Time delay relay for interior lights

    I would suspect you have a bad door switch on one of the doors or liftgate. They are usually plunger switches. Try pusing them in one at a time and see f the lights go out. Hold it in long enough to account for the time delay.

    please rate if this helps you.

    ---------
    • The Courtesy Lamps Stay On Continuously
    • Circuitry.
    • GEM/CTM.
    • Ignition switch.
    • Interior lamp relay.
    • Dimmer module.
    • Door ajar switch.
    • DTC B1322.
    • DTC B1330.
    • DTC B1334.
    • DTC B1338.
    • DTC B1371.
    • DTC B1574.
    • DTC B1610.


    ------------------------------------
    Generic Electronic Module (GEM)/Central Timer Module (CTM) Controlled Functions
    The generic electronic module (GEM) is equipped on four-wheel drive vehicles with power windows. The central timer module (CTM) is equipped only on two-wheel drive vehicles without power windows.
    NOTE: GEM/CTM diagnostics are compatible with New Generation STAR (NGS) Tester.
    The GEM/CTM incorporates the functions of several different modules into one, and offers diagnostics to easily locate and repair concerns affecting the subsystems that it controls.
    The GEM/CTM constantly monitors the systems under its control and reports a concern in the form of a diagnostic trouble code (DTC). A DTC can be retrieved with NGS Tester through the communication link.
    NGS Tester is a menu-driven tester that allows the user to run specific tests. NGS Tester can isolate faults in the GEM/CTM subsystems through a symptom-driven diagnostic procedure. Connecting NGS Tester to the GEM/CTM communication link will not alert the GEM/CTM. If the GEM/CTM is "asleep" when the diagnostic connector is plugged in, the GEM/CTM must be "awakened". If the communication link cannot be established, it is advised to turn the ignition to RUN.
    NOTE: The GEM/CTM has a sleep function to minimize battery consumption. During the sleep mode, the GEM/CTM turns off all outputs and monitors only the following:
    • Door ajar (driver door, passenger door, liftgate, LH rear and RH rear doors).
    • Key-in-ignition.
    • Key in RUN or ACC.
    • Two-step unlock switch (unarm switch).
    • Digital TR sensor.
    • Illuminated entry request (remote anti-theft personality [RAP] module).
    If a change of status occurs at one of these inputs while the GEM/CTM is asleep, the GEM/CTM will "wake up." When the GEM/CTM awakens, it performs an internal self-test, and begins normal operation. At this point, the GEM/CTM will have all of its functions operational.
    The GEM/CTM will go into the sleep mode immediately after both of the following conditions have been met:
    • Key in OFF or key not in ignition.
    • After 45 minutes with no change in any wake-up input.
    The GEM/CTM control system has two modes of operation; the normal operating mode and the tester-dependent diagnostics mode.
    The normal operation of the GEM/CTM can detect errors. An integral part of the normal GEM/CTM operation is the continuous diagnostic capability. Continuous diagnostics detects errors and changes the GEM/CTM control strategy. There is no warning lamp for the GEM/CTM; therefore, a DTC concern will direct you to the GEM/CTM. Examples of faults that may be detected during normal operation include:
    NOTE: The GEM/CTM can only detect open circuit/short to GRD faults when the GEM/CTM in not energizing a load, and short to battery faults when the GEM/CTM is attempting to energize a load.
    • GEM/CTM continuous self-test (RAM, ROM, EEPROM, A/D checking).
    • Output driver monitoring (open circuit/short to ground [GRD], short to power).
    • Illogical combinations of input signals.
    Not finding what you are looking for?

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