• Welcome to SVTPerformance!

GEM died on my Excursion. Ford techs in here

Discussion in 'Road Side Pub' started by RedVenom48, Nov 8, 2019.

  1. hotcobra03

    hotcobra03 Well-Known Member Established Member

    Messages:
    6,894
    Joined:
    Mar 11, 2007
    Location:
    poteet,texas
    Generic Electronic Module (GEM)

    SECTION 419-10: Multifunction Electronic Modules


    2001 F-Super Duty 250-550/Excursion/F-53 Motorhome Chassis Workshop Manual


    DIAGNOSIS AND TESTING


    Procedure revision date: 06/21/2000


    Generic Electronic Module (GEM)
    Special Tool(s)


    ST1137A.gif




    73III Automotive Meter

    105-R0057 or equivalent
    ST2332A.gif




    Worldwide Diagnostic System (WDS)

    418-F224

    New Generation STAR (NGS) Tester

    418-F052 or equivalent diagnostic tool




    Principles of Operation

    The following is list of GEM controlled functions:

    • 4-wheel drive functions

    • front and rear wiper/washer

    • warning chimes

    • keyless entry

    • interior and exterior lamps

    • power windows
    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 isveryimportant to the GEM function. Often times, erratic or unexpected GEM function can be traced to concerns with ignition switch inputs.





    Ignition Switch Positions

    The position of the ignition switch is very important to correct GEM operation. The following is a brief description of five ignition switch positions.

    When the ignition switch is in the RUN position, battery voltage should be present at the GEM RUN and RUN/ACC input terminals.

    When the ignition switch is in the ACC position, battery voltage should be present at the GEM RUN/ACC input terminal only.

    When the ignition switch is in the START position, battery voltage should be present at the GEM start/clutch depressed input.

    The GEM module does not have an OFF or LOCK switch state input. The GEM will assume the OFF or LOCK position when there are no RUN, ACC, or START signals present.





    Inspection and Verification

    1. Verify the customer concern by operating the system.
    1. Visually inspect for obvious signs of electrical damage.
    Visual Inspection Chart


    Electrical
    Central junction box (CJB) fuse:
    • 8 (5A)
    • 15 (5A)
    Wiring harness
    Connector(s)
    Circuitry
    1. If the concern remains after the inspection, connect the diagnostic tool to the data link connector (DLC) located beneath the instrument panel and select the vehicle to be tested from the diagnostic tool menu. If the diagnostic tool does notcommunicate with the vehicle:
    • check that the program card is correctly installed.

    • check the connections to the vehicle.

    • check the ignition switch position.
    1. If the diagnostic tool still does not communicate with the vehicle, refer to the diagnostic tool manual.
    1. Carry out the DATA LINK DIAGNOSTICS test. If the diagnostic tool responds with:
    • CKT914, CKT915 or CKT70 = ALL ECUS NO RESP/NOT EQUIP, refer to Module Communications Network.

    • NO RESPONSE/NOT EQUIP for GEM, go to pinpoint Test A.

    • SYSTEM PASSED, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the GEM.
    1. If the DTCs retrieved are related to the concern, go to the Diagnostic Trouble Code (DTC) Index to continue diagnostics.
    1. If no DTCs related to the concern are retrieved, refer to the appropriate section of the Workshop Manual to continue diagnostics.




    Symptom Chart

    Symptom Chart


    Condition Possible Sources Action
    • No communication with the generic electronic module (GEM).

    • Central junction box (CJB) fuse 15 (5A).

    • Circuitry.

    • GEM

    • GO to Pinpoint Test A.





    Pinpoint Tests

    PINPOINT TEST A: NO COMMUNICATION WITH THE GENERIC ELECTRONIC MODULE (GEM)


    CONDITIONS DETAILS/RESULTS/ACTIONS
    A1 CHECK CIRCUIT 1052 (TN/BK) FOR VOLTAGE


    1.

    IC0006.gif








    2.

    IC0004.gif



    Central Junction Box C243






    3.

    GK2453A.gif






    3. Measure the voltage between central junction box C243, circuit 1052 (TN/BK) and ground.



    • Is the voltage greater than 10 volts?
    → Yes
    GO to A2.

    → No
    REPAIR the circuit. REPEAT the self-test.

    A2 CHECK CIRCUIT 875 (BK/LB) FOR CONTINUITY TO GROUND


    1.

    IC0004.gif



    GEM C239






    2.

    GK6309A.gif






    2. Measure the resistance between GEM C239 pin 26, circuit 875 (BK/LB), and ground.



    • Is the resistance less than 5 ohms?
    → Yes
    REFER to Module Communications Network.

    → No
    REPAIR the circuit. REPEAT the self-test.

    Copyright ©2019 by Chilton, an imprint of Cengage Learning
     
    RedVenom48 likes this.
  2. hotcobra03

    hotcobra03 Well-Known Member Established Member

    Messages:
    6,894
    Joined:
    Mar 11, 2007
    Location:
    poteet,texas
    Gem diagnostic codes

    Diagnostic Trouble Code Chart

    SECTION 419-10: Multifunction Electronic Modules


    2001 F-Super Duty 250-550/Excursion/F-53 Motorhome Chassis Workshop Manual


    DIAGNOSIS AND TESTING


    Procedure revision date: 06/21/2000


    Diagnostic Trouble Code Chart

    DTC Description Source Action
    B1201 Fuel Sender Circuit Failure OTC REFER to Information and Message Center.
    B1203 Fuel Sender Circuit Short to Battery OTC REFER to Information and Message Center.
    B1208 EIC Switch-1 Assembly Circuit Short to Ground OTC REFER to Information and Message Center.
    B1213 Anti-Theft Number of Programmed Keys is Below Minimum PATS module REFER to Anti-Theft — PATS.
    B1217 Horn Relay Coil Circuit Failure GEM REFER to Handles, Locks, Latches and Entry Systems.
    B1218 Horn Relay Coil Circuit Short to Battery GEM REFER to Handles, Locks, Latches and Entry Systems.
    B1231 Longitudinal Acceleration Threshold Exceeded RCM REFER to Supplemental Restraint System.
    B1232 Antenna Not Connected PATS module REFER to Anti-Theft — PATS.
    B1240 Wiper Washer Rear Pump Relay Circuit Failure GEM REFER to Wipers and Washers.
    B1241 Wiper Washer Rear Pump Relay Circuit Short to Battery GEM REFER to Wipers and Washers.
    B1243 Express Window Down Switch Circuit Short to Battery GEM REFER to Glass, Frames and Mechanisms.
    B1255 Air Temperature External Sensor Circuit Open OTC REFER to Information and Message Center.
    B1299 Power Supply Sensor Circuit Short to Ground Parking Aid module REFER to Parking Aid.
    B1300 Power Door Lock Circuit Failure GEM REFER to Glass, Frames and Mechanisms.
    B1302 Accessory Delay Relay Coil Circuit Failure GEM REFER to Glass, Frames and Mechanisms.
    B1304 Accessory Delay Relay Coil Circuit Short to Battery GEM REFER to Glass, Frames and Mechanisms.
    B1310 Power Door Unlock Circuit Failure GEM REFER to Handles, Locks, Latches and Entry Systems.
    B1317 Battery Voltage High GEM REFER to Charging System — General Information.
    B1318 Battery Voltage Low GEM REFER to Charging System — General Information.
    B1318 Battery Voltage Low RCM REFER to Supplemental Restraint System.
    B1322 Door Ajar LF Circuit Short to Ground GEM REFER to Handles, Locks, Latches and Entry Systems.
    B1323 Door Ajar Lamp Circuit Failure GEM REFER to Instrument Cluster.
    B1325 Door Ajar Lamp Circuit Short to Battery GEM REFER to Instrument Cluster.
    B1330 Door Ajar RF Circuit Short to Ground GEM REFER to Interior Lighting.
    B1334 Decklid Ajar Rear Door Circuit Short to Ground GEM REFER to Interior Lighting.
    B1338 Door Ajar RR Circuit Short to Ground GEM REFER to Interior Lighting.
    B1340 Chime Input Request Circuit Short to Ground GEM REFER to Warning Devices.
    B1342 ECU is Defective ABS CLEAR DTCs. REPEAT the self-test. If DTC B1342 is retrieved, INSTALL a new ABS module. REFER to Section 206-09. CLEAR the DTCs. REPEAT the self-test.
    B1342 ECU is Defective GEM CLEAR DTCs. REPEAT the self-test. If DTC B1342 is retrieved, INSTALL a new GEM. REFER to Generic Electronic Module (GEM) in this section. CLEAR the DTCs. REPEAT the self-test.
    B1342 ECU is Defective OTC REFER to Information and Message Center.
    B1342 ECU is Defective Parking Aid module REFER to Parking Aid.
    B1342 ECU is Defective RABS CLEAR DTCs. REPEAT the self-test. If DTC B1342 is retrieved, INSTALL a new RABS. REFER to Section 206-09. CLEAR the DTCs. REPEAT the self-test.
    B1342 ECU is Defective RCM CLEAR DTCs. REPEAT the self-test. If DTC B1342 is retrieved, INSTALL a new RCM. REFER to Supplemental Restraint System. CLEAR the DTCs. REPEAT the self-test.
    B1345 Heated Backlight Input Circuit Short to Ground GEM REFER to Glass, Frames and Mechanisms.
    B1347 Heated Backlight Relay Circuit Failure GEM REFER to Glass, Frames and Mechanisms.
    B1349 Heated Backlight Relay Short to Battery GEM REFER to Glass, Frames and Mechanisms.
    B1352 Ignition Key-In Circuit Failure GEM REFER to Warning Devices.
    B1355 Ignition RUN Circuit Failure GEM REFER to Steering Column Switches.
    B1359 Ignition RUN/ACC Circuit Failure GEM REFER to Steering Column Switches.
    B1366 Ignition START Circuit Short to Ground GEM REFER to Steering Column Switches.
    B1371 Illuminated Entry Relay Circuit Failure GEM REFER to Interior Lighting.
    B1373 Illuminated Entry Relay Short to Battery GEM REFER to Interior Lighting.
    B1396 Power Door Lock Circuit Short to Battery GEM REFER to Handles, Locks, Latches and Entry Systems.
    B1397 Power Door Unlock Circuit Short to Battery GEM REFER to Handles, Locks, Latches and Entry Systems.
    B1398 Power Window LF One Touch Window Relay Circuit Failure GEM REFER to Glass, Frames and Mechanisms.
    B1400 Power Window LF One Touch Window Relay Circuit Short to Battery GEM REFER to Glass, Frames and Mechanisms.
    B1405 Power Window LF Down Circuit Short to Battery GEM REFER to Glass, Frames and Mechanisms.
    B1410 Power Window LF Motor Circuit Failure GEM REFER to Glass, Frames and Mechanisms.
    B1426 Seat Belt Lamp Circuit Short to Battery GEM REFER to Instrument Cluster.
    B1428 Seat Belt Lamp Circuit Failure GEM REFER to Instrument Cluster.
    B1431 Wiper Brake/Run Relay Circuit Failure GEM REFER to Wipers and Washers.
    B1432 Wiper Brake/Run Relay Circuit Short to Battery GEM REFER to Wipers and Washers.
    B1434 Wiper Hi/Low Speed Relay Circuit Failure GEM REFER to Wipers and Washers.
    B1436 Wiper Hi/Low Speed Relay Circuit Short to Battery GEM REFER to Wipers and Washers.
    B1438 Wiper Mode Select Switch Circuit Failure GEM REFER to Wipers and Washers.
    B1441 Wiper Mode Select Switch Circuit Short to Ground GEM REFER to Wipers and Washers.
    B1446 Wiper Park Sense Circuit Failure GEM REFER to Wipers and Washers.
    B1450 Wiper Wash/Delay Switch Circuit Failure GEM REFER to Wipers and Washers.
    B1453 Wiper Wash/Delay Switch Circuit Short to Ground GEM REFER to Wipers and Washers.
    B1458 Wiper Washer Pump Motor Relay Circuit Failure GEM REFER to Wipers and Washers.
    B1460 Wiper Washer Pump Motor Relay Circuit Short to Battery GEM REFER to Wipers and Washers.
    B1462 Seat Belt Switch Circuit Failure GEM REFER to Warning Devices.
    B1473 Wiper Low Speed Circuit Motor Failure GEM REFER to Wipers and Washers.
    B1475 Accessory Delay Relay Contact Short to Battery GEM REFER to Glass, Frames and Mechanisms.
    B1476 Wiper High Speed Circuit Motor Failure GEM REFER to Wipers and Washers.
    B1483 Brake Pedal Input Circuit Failure GEM REFER to Exterior Lighting.
    B1485 Brake Pedal Input Circuit Short to Battery GEM REFER to Exterior Lighting.
    B1485 Brake Pedal Input Circuit Short to Battery RABS REFER to Section 206-09.
    B1526 Keyless Entry Circuit Short to Ground GEM REFER to Handles, Locks, Latches and Entry Systems.
    B1566 Door Ajar Circuit Short to Ground GEM REFER to Interior Lighting.
    B1574 Door Ajar LR Circuit Short to Ground GEM REFER to Handles, Locks, Latches and Entry Systems.
    B1577 Park Lamp Input Circuit Short to Battery GEM REFER to Warning Devices.
    B1600 PATS Ignition Key Transponder Signal is Not Received PATS module REFER to Anti-Theft — PATS.
    B1601 PATS Received Incorrect Key-Code From Ignition Key Transponder PATS module REFER to Anti-Theft — PATS.
    B1602 PATS Received Invalid Format of Key-Code From Ignition Key Transponder PATS module REFER to Anti-Theft — PATS.
    B1611 Wiper Rear Mode Select Switch Circuit Failure GEM REFER to Wipers and Washers.
    B1614 Wiper Rear Mode Select Switch Circuit Short to Ground GEM REFER to Wipers and Washers.
    B1629 ECU is Defective Parking aid module REFER to Parking Aid.
    B1681 PATS Transceiver Module Signal is Not Received PATS module REFER to Anti-Theft — PATS.
    B1820 Wiper Rear Motor Up Relay Coil Circuit Short to Battery GEM REFER to Wipers and Washers.
    B1839 Wiper Rear Motor Circuit Failure GEM REFER to Wipers and Washers.
    B1840 Front Wiper Power Circuit Failure GEM REFER to Wipers and Washers.
    B1869 Air Bag Lamp Warning Indicator Circuit Open RCM REFER to Supplemental Restraint System.
    B1870 Air Bag Lamp Warning Indicator Circuit Short to Battery RCM REFER to Supplemental Restraint System.
    B1884 PAD Warning Lamp Inoperative RCM REFER to Supplemental Restraint System.
    B1887 Driver Air Bag Circuit Short to Ground RCM REFER to Supplemental Restraint System.
    B1888 Passenger Air Bag Circuit Short to Ground RCM REFER to Supplemental Restraint System.
    B1890 PAD Warning Lamp Circuit Short to Battery RCM REFER to Supplemental Restraint System.
    B1891 Air Bag Tone Warning Indicator Circuit Short to Battery RCM REFER to Supplemental Restraint System.
    B1892 Air Bag Tone Warning Indicator Circuit Failure RCM REFER to Supplemental Restraint System.
    B1901 Air Bag Crash Sensor No. 1 Feed/Return Circuit Short to Ground RCM REFER to Supplemental Restraint System.
    B1916 Driver Air Bag Circuit Short to Battery RCM REFER to Supplemental Restraint System.
    B1921 Air Bag Diagnostic Monitor Ground Circuit Open RCM REFER to Supplemental Restraint System.
    B1925 Passenger Air Bag Circuit Short to Battery RCM REFER to Supplemental Restraint System.
    B1932 Driver Air Bag Circuit Open RCM REFER to Supplemental Restraint System.
    B1934 Driver Air Bag Inflator Circuit Resistance Low on Squib RCM REFER to Supplemental Restraint System.
    B1935 Passenger Air Bag Inflator Circuit Resistance Low on Squib RCM REFER to Supplemental Restraint System.
    B1941 Air Bag Crash Sensor No. 1 Feed/Return Circuit Open RCM REFER to Supplemental Restraint System.
    B1982 Driver Door Unlock Relay Circuit Failure GEM REFER to Handles, Locks, Latches and Entry Systems.
    B1983 Driver Door Unlock Relay Circuit Short to Battery GEM REFER to Handles, Locks, Latches and Entry Systems.
    B2103 Antenna Not Connected PATS module REFER to Anti-Theft — PATS.
    B2132 Dimmer Switch Circuit Short to Ground GEM REFER to Interior Lighting.
    B2133 Brake Motor Warning Lamp Circuit Failure GEM REFER to Instrument Cluster.
    B2134 Brake Motor Warning Lamp Circuit Short to Battery GEM REFER to Instrument Cluster.
    B2135 Park Brake Applied Warning Lamp Circuit Failure GEM REFER to Instrument Cluster.
    B2136 Park Brake Applied Warning Lamp Circuit Short to Battery GEM REFER to Instrument Cluster.
    B2139 Data Mismatch (Receive Data Does Not Match What Was Expected) PATS module REFER to Anti-Theft — PATS.
    B2141 NVM Configuration Failure GEM Vehicle speed calibration is not programmed into the GEM. REFER to the diagnostic tool help screen on the configuration card to program the tire size and axle ratio. TEST the system for normal operation. If DTC B2141 is still present, install anewGEM. REFER to Generic Electronic Module (GEM) in this section. CONFIGURE the GEM. REFER to Module Configuration.TEST the system for normal operation.
    B2141 NVM Configuration Failure OTC REFER to Steering System — General Information.
    B2141 NVM Configuration Failure PATS module REFER to Anti-Theft — PATS.
    B2148 PWM Input Circuit Failure OTC REFER to Instrument Cluster and Panel Illumination.
    B2357 Driver Window Down Current Sense Low Circuit Failure GEM REFER to Glass, Frames and Mechanisms.
    B2373 LED No. 1 Circuit Short to Battery Parking aid module REFER to Parking Aid.
    B2425 Remote Keyless Entry (RKE) Out of Synchronization GEM REFER to Handles, Locks, Latches and Entry Systems.
    B2477 NVM Configuration Failure ABS REFER to Section 206-09.
    B2477 Module Configuration Failure (Unconfigured, Incorrect or Rejected) GEM REFER to Module Configuration.
    B2477 NVM Configuration Failure OTC REFER to Information and Message Center.
    B2477 NVM Configuration Failure Parking and module REFER to Parking Aid.
    B2477 NVM Configuration Failure RABS REFER to Section 206-09.
    B2477 Module Configuration Failure RCM REFER to Module Configuration.
    C1095 ABS Hydraulic Pump Motor Circuit Failure ABS REFER to Section 206-09.
    C1096 ABS Hydraulic Pump Motor Circuit Open ABS REFER to Section 206-09.
    C1115 ABS Power Relay Output Circuit Short to Battery RABS REFER to Section 206-09.
    C1123 Vehicle Speed Sensor Input Short to Battery OTC REFER to Information and Message Center.
    C1125 Brake Fluid Level Sensor Input Circuit Failure GEM REFER to Instrument Cluster.
    C1145 Wheel Speed Sensor RF Input Circuit Failure ABS REFER to Section 206-09.
    C1148 Wheel Speed Sensor RF Coherency Fault ABS REFER to Section 206-09.
    C1149 Hydraulic Fluid Pressure/Flow Circuit Failure GEM REFER to Hydraulic Brake Actuation.
    C1150 Two Speed Rear Axle Input Switch Circuit Short to Battery GEM REFER to Section 205-02.
    C1155 Wheel Speed Sensor LF Input Circuit Failure ABS REFER to Section 206-09.
    C1158 Wheel Speed Sensor LF Coherency Fault ABS REFER to Section 206-09.
    C1159 Hydraulic Fluid Pressure/Flow Circuit Short to Ground GEM REFER to Hydraulic Brake Actuation.
    C1161 Air Pressure Low Circuit Short to Ground GEM REFER to Section 206-09.
    C1169 ABS Fluid Dumping Exceeds Maximum Timing ABS REFER to Section 206-09.
    C1169 ABS Fluid Dumping Exceeds Maximum Timing RABS REFER to Section 206-09.
    C1182 Park Lamp Flash Relay Circuit Failure GEM REFER to Handles, Locks, Latches and Entry Systems.
    C1183 Park Lamp Flash Relay Circuit Short to Battery GEM REFER to Handles, Locks, Latches and Entry Systems.
    C1184 ABS System is Not Operational ABS REFER to Section 206-09.
    C1185 ABS Power Relay Output Circuit Failure ABS REFER to Section 206-09.
    C1185 ABS Power Relay Output Circuit Failure RABS REFER to Section 206-09.
    C1189 Brake Fluid Level Sensor Input Short Circuit To Ground GEM REFER to Instrument Cluster.
    C1194 ABS Outlet Valve Coil LF Circuit Failure ABS REFER to Section 206-09.
    C1196 ABS Outlet Valve Coil LF Circuit Short to Battery ABS REFER to Section 206-09.
    C1198 ABS Inlet Valve Coil LF Circuit Failure ABS REFER to Section 206-09.
    C1200 ABS Inlet Valve Coil LF Circuit Short to Battery ABS REFER to Section 206-09.
    C1202 ABS Outlet (Dump) Valve Coil Rear Circuit Failure ABS REFER to Section 206-09.
    C1202 ABS Outlet (Dump) Valve Coil Rear Circuit Failure RABS REFER to Section 206-09.
    C1204 ABS Outlet (Dump) Valve Coil Rear Circuit Short to Battery ABS REFER to Section 206-09.
    C1204 ABS Outlet (Dump) Valve Coil Rear Circuit Short to Battery RABS REFER to Section 206-09.
    C1206 ABS Inlet (Isolation) Valve Coil Rear Circuit Failure ABS REFER to Section 206-09.
    C1206 ABS Inlet (Isolation) Valve Coil Rear Circuit Failure RABS REFER to Section 206-09.
    C1208 ABS Inlet (Isolation) Valve Coil Rear Circuit RABS REFER to Section 206-09.
    C1208 ABS Inlet (Isolation) Valve Coil Rear Circuit ABS REFER to Section 206-09.
    C1210 ABS Outlet Valve Coil RF Circuit Failure RABS REFER to Section 206-09.
    C1212 ABS Outlet Valve Coil RF Circuit Short to Battery ABS REFER to Section 206-09.
    C1214 ABS Inlet Valve Coil RF Circuit Failure ABS REFER to Section 206-09.
    C1216 ABS Inlet Valve Coil RF Circuit Short to Battery ABS REFER to Section 206-09.
    C1222 Wheel Speed Mismatch ABS REFER to Section 206-09.
    C1223 Lamp Brake Warning Output Circuit Failure GEM REFER to Instrument Cluster.
    C1225 Lamp Brake Warning Output Circuit Short to Battery GEM REFER to Instrument Cluster.
    C1226 Lamp Brake Warning Output Short to Ground ABS REFER to Section 206-09.
    C1226 Lamp Brake Warning Output Short to Ground RABS REFER to Section 206-09.
    C1229 Wheel Speed Sensor Rear Center Coherency Fault ABS REFER to Section 206-09.
    C1229 Wheel Speed Sensor Rear Center Coherency Fault RABS REFER to Section 206-09.
    C1230 Wheel Speed Sensor Rear Center Input Circuit Failure ABS REFER to Section 206-09.
    C1230 Wheel Speed Sensor Rear Center Input Circuit Failure GEM REFER to Section 206-09.
    C1230 Wheel Speed Sensor Rear Center Input Circuit Failure RABS REFER to Section 206-09.
    C1233 Wheel Speed LF Input Signal Missing ABS REFER to Section 206-09.
    C1234 Wheel Speed RF Input Signal Missing ABS REFER to Section 206-09.
    C1237 Wheel Speed Rear Input Signal Missing ABS REFER to Section 206-09.
    C1241 ABS Hydraulic Pressure Differential Switch Input Short GEM REFER to Section 206-09.
    C1241 ABS Hydraulic Pressure Differential Switch Input RABS REFER to Section 206-09.
    C1268 Motor Relay No. 1 Circuit Failure GEM REFER to Section 206-09.
    C1269 Motor Relay No. 1 Circuit Short to Battery GEM REFER to Section 206-09.
    C1270 Motor No. 1 Input Circuit Failure GEM REFER to Section 206-09.
    C1271 Motor No. 1 Input Circuit Short to Ground GEM REFER to Section 206-09.
    C1414 Incorrect Module Design Level RCM REFER to Supplemental Restraint System.
    C1446 Brake Switch Circuit Failure GEM REFER to Instrument Cluster.
    C1699 Rear Outer Left Sensor Circuit Short to Battery Parking aid module REFER to Parking Aid.
    C1700 Rear Outer Left Sensor Circuit Failure Parking aid module REFER to Parking Aid.
    C1701 Rear Outer Left Sensor Fault Parking aid module REFER to Parking Aid.
    C1702 Rear Outer Right Sensor Circuit Short to Battery Parking aid module REFER to Parking Aid.
    C1703 Rear Outer Right Sensor Circuit Failure Parking aid module REFER to Parking Aid.
    C1704 Rear Outer Right Sensor Fault Parking aid module REFER to Parking Aid.
    C1705 Rear Inner Left Sensor Circuit Short to Battery Parking aid module REFER to Parking Aid.
    C1728 Transfer Case Unable to Transition Between 2H and 4H GEM REFER to Four-Wheel Drive Systems.
    C1729 Transfer Case Unable to Transition Between 4H and 4L GEM REFER to Four-Wheel Drive Systems.
    C1743 Rear Sounder Circuit Short to Battery Parking aid module REFER to Parking Aid.
    C1751 Vehicle Speed Sensor No. 1 Output Circuit Short to Battery GEM REFER to Section 206-09.
    C1752 Vehicle Speed Sensor No. 1 Output Circuit Short to Ground GEM REFER to Section 206-09.
    P0500 Vehicle Speed Sensor (VSS) Malfunction GEM REFER to Section 206-09.
    P0500 Vehicle Speed Sensor (VSS) Malfunction OTC REFER to Information and Message Center.
    P0720 Output Speed Sensor Circuit Malfunction GEM REFER to Section 206-09.
    P1804 Transmission 4-Wheel Drive High Indicator Circuit Failure GEM REFER to Four-Wheel Drive Systems.
    P1806 Transmission 4-Wheel Drive High Indicator Short GEM REFER to Four-Wheel Drive Systems.
    P1808 Transmission 4-Wheel Drive Low Indicator Circuit Failure GEM REFER to Four-Wheel Drive Systems.
    P1810 Transmission 4-Wheel Drive Low Indicator Short GEM REFER to Four-Wheel Drive Systems.
    P1812 Transmission 4-Wheel Drive Mode Select Circuit Failure GEM REFER to Four-Wheel Drive Systems.
    P1815 Transmission 4-Wheel Drive Mode Select Short GEM REFER to Four-Wheel Drive Systems.
    P1819 Transmission Neutral Safety Switch Short Circuit to Ground GEM REFER to Four-Wheel Drive Systems.
    P1820 Transmission Transfer Case Clockwise Shift Relay GEM REFER to Four-Wheel Drive Systems.
    P1822 Transmission Transfer Case Clockwise Shift Relay Coil GEM REFER to Four-Wheel Drive Systems.
    P1828 Transmission Transfer Case Counterclockwise Shift GEM REFER to Four-Wheel Drive Systems.
    P1830 Transmission Transfer Case Counterclockwise Shift GEM REFER to Four-Wheel Drive Systems.
    P1832 Transmission Transfer Case Differential Lock-Up GEM REFER to Four-Wheel Drive Systems.
    P1834 Transmission Transfer Case Differential Lock-Up GEM REFER to Four-Wheel Drive Systems.
    P1838 Transmission Transfer Case Shift Motor Circuit Failure GEM REFER to Four-Wheel Drive Systems.
    P1865 Transmission Transfer Case Contact Plate Power GEM REFER to Four-Wheel Drive Systems.
    P1866 Transmission Transfer Case System Concern GEM REFER to Four-Wheel Drive Systems.
    P1867 Transmission Transfer Case Contact Plate General GEM REFER to Four-Wheel Drive Systems.
    P1876 Transmission Transfer Case 2-Wheel Drive Solenoid Circuit Failure GEM REFER to Four-Wheel Drive Systems.
    P1877 Transmission Transfer Case 2-Wheel Drive Solenoid Circuit Short GEM REFER to Four-Wheel Drive Systems.
    U2015 Signal Link Fault (Non-SCP) OTC REFER to Information and Message Center.
    U2016 Signal Link Short to Ground (Non-SCP) OTC REFER to Information and Message Center.
     
  3. gimmie11s

    gimmie11s Don’t be an idiot Established Member

    Messages:
    13,188
    Joined:
    Jun 1, 2004
    Location:
    so cal
    What a disaster. You sure you dont own some old Dodge product? LOL.. didnt know Ford was susceptible to electrical gremlins like this too.

    Sorry OP.. not a good time.
     
    RedVenom48 and 03Sssnake like this.
  4. 13COBRA

    13COBRA Resident Ford Dealer Premium Member Established Member

    Messages:
    16,959
    Joined:
    Jun 4, 2012
    Location:
    Missouri
    @lexustech48 just buy my 2015 Excursion..I just put new tires on it!


    upload_2019-11-11_12-56-2.png
     
  5. RedVenom48

    RedVenom48 Ghost Editor-in-Chief Premium Member Established Member Beer Money Bros.

    Messages:
    7,529
    Joined:
    Sep 29, 2014
    Location:
    Arizona
    Haha, thats such a killer Excursion Nick! Much as it would find a welcome home with me, mama and I are looking for a 2019 Super Duty come this January/Feb/March. We want to do some 5th wheel RVing in the future with the little one when she gets here, so I think my time as an Excursion owner is coming to an end in a few months.
     
    13COBRA and nxhappy like this.
  6. kevinatfms

    kevinatfms Ex-Ford/Kia/Hyundai Tech Premium Member Established Member

    Messages:
    4,511
    Joined:
    Jan 29, 2006
    Location:
    Maryland
    The module is the same but the programming was different for your trim level, 4wd/2wd and engine. So it was not a plug and play endeavor.

    So even if you were to take it to Ford they would have to download the original programming with IDS, install the new module and then reupload the stored program. If the original module was completely useless you would enter a build code and the IDS would get it off the Ford database and upload it to the new module.

    Even finding one from the same year, same engine, same 4x4 system would still need an individual program to fuction correctly. It was a terrible designed system and the early 02-05 trucks had massive issues with the circuit boards going bad. New updated module usually fixed it.
     
  7. kevinatfms

    kevinatfms Ex-Ford/Kia/Hyundai Tech Premium Member Established Member

    Messages:
    4,511
    Joined:
    Jan 29, 2006
    Location:
    Maryland
    What part number are you looking up? If youre looking for "GEM" it wont show as that isnt under the Ford nomenclature.

    Check for Multi-Fuction Module. It should be part number MFM16RM (14B205) and they are available for a 2001 Excursion with the 6.8L from what im seeing. Cost is $300.14 with a $50 core charge. See if Auto Nation can get it?
     
    RedVenom48 and 03Sssnake like this.
  8. black92

    black92 Hot rod Lincoln Established Member

    Messages:
    6,461
    Joined:
    Dec 22, 2005
    Location:
    Olathe, KS
    Best of luck with whatever you decide (fix or new truck). In regards to parts, it's my understanding that when a model is no longer exists, parts are to be supplied for up to 10 years. Since your Excursion is well beyond that, it's no surprise things are getting harder to find.

    @13COBRA - Getting rid of it already???
     
    RedVenom48 likes this.
  9. 13COBRA

    13COBRA Resident Ford Dealer Premium Member Established Member

    Messages:
    16,959
    Joined:
    Jun 4, 2012
    Location:
    Missouri
    Eh, everything is for sale. I've had it 9 months now haha Longest I've kept anything besides my Viper.
     
    black92 and RedVenom48 like this.
  10. RedVenom48

    RedVenom48 Ghost Editor-in-Chief Premium Member Established Member Beer Money Bros.

    Messages:
    7,529
    Joined:
    Sep 29, 2014
    Location:
    Arizona
    Kevin, I appreciate the lookup. I called my Ford dealers parts dept and put one on order. $220 out the door plus $50 core. Said they only had 1 unit showing up in their ordering system, but it could be just a weird place holder.
     
    black92 and 03Sssnake like this.
  11. gimmie11s

    gimmie11s Don’t be an idiot Established Member

    Messages:
    13,188
    Joined:
    Jun 1, 2004
    Location:
    so cal
  12. 03Sssnake

    03Sssnake TK-421 Established Member Beer Money Bros.

    Messages:
    28,598
    Joined:
    Dec 9, 2002
    Location:
    not at my post...
    good luck!
     
    gimmie11s likes this.
  13. 76IHscoutII

    76IHscoutII Wut Apex!?! Established Member

    Messages:
    1,714
    Joined:
    Feb 14, 2004
    Location:
    Colorado
    I've got an an 01' Ex and have never heard of a GEM. After reading this thread I was thinking I should buy one for an on-hand spare...at $220 I guess not!
     
    RedVenom48 likes this.
  14. RedVenom48

    RedVenom48 Ghost Editor-in-Chief Premium Member Established Member Beer Money Bros.

    Messages:
    7,529
    Joined:
    Sep 29, 2014
    Location:
    Arizona
    Hell, if you plan on keeping your Ex for the long haul, that $220 + $50 core charge is peanuts compared to trying to scour for a used one. Every Excursion that was compatible in the junkyards had them missing. On Ebay they are $300+ for an unknown unit.

    Some automotive electronic repair shops may be able to fix it, but having a Ford refurbished unit ready to go is peace of mind. I *think* 99-01 Super Duty and Excursion are the most susceptible. 2002 they re-did the electronics and Im not sure they had a similar GEM.
     
    Last edited: Nov 13, 2019
  15. RedVenom48

    RedVenom48 Ghost Editor-in-Chief Premium Member Established Member Beer Money Bros.

    Messages:
    7,529
    Joined:
    Sep 29, 2014
    Location:
    Arizona
    Well, bad news gentlemen. My Ford parts department called me just now. The GEM order was placed on intergalactic backorder by Ford with a fulfillment date of November 2020. Pretty much meaning that they are, in fact, done refurbishing the modules.

    This is not good news for me, or even guys trying to keep their rigs running.
     
  16. RedVenom48

    RedVenom48 Ghost Editor-in-Chief Premium Member Established Member Beer Money Bros.

    Messages:
    7,529
    Joined:
    Sep 29, 2014
    Location:
    Arizona
    FYI for guys trying to find one of these for either a Super Duty or Excursion, I ran the production number on the GEM (in my case 1C3T-14B205-EB) on ebay and found one reportedly refurbished from a seller called your_part_source. 3 month warranty with it, but was offered a 1 year Square Trade insurance policy on it for $50 from ebay. Seller had a 100% positive rating with 22,000+ rating. Ordered one. Got my fingers crossed its good. If not, at least I can get my money back.
     
    03Sssnake likes this.
  17. 03Sssnake

    03Sssnake TK-421 Established Member Beer Money Bros.

    Messages:
    28,598
    Joined:
    Dec 9, 2002
    Location:
    not at my post...
    you might also see if he can refurb/turn yours around to have as a spare....or buy a spare to have on hand.
     
    _Snake_ and RedVenom48 like this.
  18. nxhappy

    nxhappy Well-Known Member Established Member

    Messages:
    9,773
    Joined:
    Dec 16, 2006
    Location:
    AZ
    100% sure the GEM is the issue ?? I know bad grounds or batteries can cause all sorts of weird shit. Is GEM failure a common thing???
     
  19. nxhappy

    nxhappy Well-Known Member Established Member

    Messages:
    9,773
    Joined:
    Dec 16, 2006
    Location:
    AZ
    I think that one will work just fine brother. Sometimes even the ebay/amazon shit works just fine. Hell recently I gambled on a 02 sensor on amazon, but it saved me $270 LOL.
     
    RedVenom48 likes this.
  20. hotcobra03

    hotcobra03 Well-Known Member Established Member

    Messages:
    6,894
    Joined:
    Mar 11, 2007
    Location:
    poteet,texas
     

Share This Page