Foutcodes Genie&Deutz
Foutcodes Genie&Deutz
1004 98                                           31    Oil sensor temperature out of           1082 108    17   Fault check min signal range
                                                        range.                                                   violated for ambient air pressure
                                                                                                                 sensor.
1005 98                                           14    Oil sensor is broken or
                                                        disconnected.                           1083 108    2    Ambient air pressure sensor error
                                                                                                                 by component self diagnosis.
1021 100                                          3     Oil pressure voltage above normal
                                                        or shorted to high.                     1084 3720   0    DPF ash load above normal
                                                                                                                 operational range.
1022 100                                          4     Oil pressure voltage below normal
                                                        or shorted to low.                      1086 3734   0    DPF soot load exceeded. Remove
                                                                                                                 filter level.
1025 100                                          1     Low oil pressure. Warning
                                                        threshold exceeded.                     1087 4781   14   DPF soot load exceeded shut off
                                                                                                                 level.
1026 100                                          1     Low oil pressure. Shut off threshold
                                                        exceeded.                               1088 4781   0    DPF soot load exceeded warning
                                                                                                                 level.
1043 107                                          0     Air filter differential pressure. Air
                                                        filter clogged.                         1089 4781   16   DPF. Too much standstill time in
                                                                                                                 short time interval.
1071 411                                          2     Engine exhaust gas recirculation.
                                                        Pressure does not change                1090 10156 0     DPF. The standstill-regeneration
                                                        between engine operating points.                         mode time exceeds the short-limit.
1072 411                                          0     Engine exhaust gas recirculation.       1091 3735   16   DPF. Standstill required and no
                                                        Pressure above normal operational                        successful standstill longer than
                                                        range.                                                   escalation threshold. Moderately
                                                                                                                 severe.
1073 411                                          1     Engine exhaust gas recirculation.
                                                        Pressure below normal operational       1092 3735   0    DPF. Standstill required and no
                                                        range.                                                   successful standstill longer than
                                                                                                                 escalation threshold. Most severe.
1074 411                                          2     Engine exhaust gas recirculation.
                                                        Negative measured differential          1093 4766   1    DOC. Regeneration temperature in
                                                        pressure.                                                standstill main phase not reached.
1075 411                                          2     Engine exhaust gas recirculation.       1102 171    2    Ambient air temperature shows a
                                                        Positive measured differential                           deviation from expected value at
                                                        pressure.                                                cold start conditions.
1118 102    1    Intake manifold pressure below         1150 3251 0       DPF difference pressure above
                 normal operational range.                                shut off threshold.
1121 102    2    DFC for signal variation check for     1151 3251 16      DPF difference pressure above
                 pressure sensor of the intake                            warning threshold.
                 manifold.                              1152 3251 1       DPF difference pressure below
1122 102    0    Intake air pressure valve sensor,                        shut off threshold.
                 warning condition exceeded.            1153 3251 18      DPF difference pressure below
1123 102    1    Intake air pressure valve sensor,                        warning threshold.
                 shutoff condition exceeded.            1161 5571 16      Rail fuel pressure relief valve
1124 1209 2      Engine exhaust pressure turbine                          above normal operational range.
                 upstream differs from ambient          1162 5571 2       Rail fuel pressure relief valve is
                 pressure while engine not running.                       forced to open, perform pressure
1125 1209 15     Engine exhaust pressure turbine                          increase.
                 upstream above upper limit.            1163 5571 2       Rail fuel pressure relief valve is
1126 1176 1      Engine turbocharger compressor                           forced to open. Performed by
                 intake pressure below normal                             pressure increase.
                 operational range.                     1164 5571 16      Rail fuel pressure relief valve is
1127 1209 2      Engine exhaust pressure turbine                          forced to open. Shutoff conditions.
                 upstream tuck check failed.            1165 5571 15      Rail fuel pressure relief valve is
                 Pressure does not change                                 forced to open. Warning
                 between engine operating points.                         conditions.
1130 1209 3      Engine exhaust pressure sensor         1166 5571 0       Open rail fuel pressure relief valve
                 voltage above normal or shorted to                       was detected.
                 high.
                                                        1167 5571 2       Unexpected opening of the rail fuel
1131 1209 4      Engine exhaust pressure sensor                           pressure relief valve.
                 voltage below normal or shorted to
                                                        1168 5571 2       Successful rail fuel pressure relief
                 low.
                                                                          valve opening cannot be ensured.
                                                        1169 5571 13      Averaged rail fuel pressure after
                                                                          valve opening is outside the
                                                                          expected tolerance range.
1170 5571 16       Open time of rail fuel pressure        121   520252 2      Wrong checksum in the CAN
                   relief valve for wear out monitoring                       message EAT Control.
                   had exceeded.                          1212 629      12    ECU. Keep alive error during
1171 94      1     Fuel pressure build up during                              runtime at an external device.
                   engine start not successful.           1213 629      12    ECU. Keep alive error during
1172 1347 5        Electrical fuel pump current below                         initialization phase at an external
                   normal or open circuit.                                    device.
1174 1347 3        Electrical fuel pump voltage above     1215 629      12    ECU. Read diagnosis error for
                   normal or shorted to high.                                 non volatile memory.
1175 1347 4        Electrical fuel pump voltage below     1216 629      12    ECU. Write diagnosis error for
                   normal or shorted to low.                                  non volatile memory.
119   1231 14      CAN Bus 2 off Error for Application    1218 629      12    ECU. Stack memory threshold
                   CAN.                                                       overrun.
1190 7103 13       Rail fuel pressure below set point,    1219 629      12    ECU. Observation counter
                   speed-dependent threshold                                  irregular switch off counter
                   exceeded.                                                  triggered by engine running.
1191 7103 13       Rail fuel pressure metering unit.      122   4207    2     TSC1 message checksum fault.
                   Fuel quantity balance is disrupted.    123   4207    2     TSC1 message checksum fault.
1194 7103 13       Negative rail fuel pressure            1233 5826     15    Emission control system
                   governor deviation at zero delivery                        operator inducement level
                   by metering unit.                                          1 severity above normal
1195 7103 1        Rail fuel pressure value is below                          operational range.
                   minimum rail pressure threshold.       1235 5826     0     Emission control system
1197 7103 0        Maximum rail fuel pressure                                 operator inducement level
                   exceeded.                                                  2 severity above normal
                                                                              operational range.
1198 7103 2        Set point of fuel metering unit in
                   overrun mode not plausible.            1236 5826     14    Emission control system
                                                                              operator pre-trigger inducement
120   639    14    CAN Bus 1 off Error for Power train                        level 2 severity.
                   CAN.
                                                          124   4207    2     TSC1 message checksum fault.
1200 5357 14       Shut-off due to undershoot of
                   minimum rail pressure.                 125   4207    2     TSC1 message checksum fault.
1202 157     0     Maximum rail pressure exceeded         1274 91       3     Accelerator pedal sensor
                   in limp home mode.                                         position 1 voltage above normal
                                                                              or shorted to high.
1208 157     3     Engine fuel injector metering rail
                   pressure voltage above normal or       1275 2623     3     Accelerator pedal 1, channel
                   shorted to high.                                           2 voltage above normal or
                                                                              shorted to high.
                                                          1276 29       3     Accelerator pedal 2 voltage
                                                                              above normal or shorted to high.
1363 412     17    Engine exhaust gas recirculation       1397 105      0     Engine intake manifold
                   temperature below normal                                   1 temperature above normal
                   operational range.                                         operational range.
1364 412     3     Engine exhaust gas recirculation       1398 105      1     Engine intake manifold
                   temperature voltage above normal                           1 temperature below normal
                   or shorted to high.                                        operational range.
1365 412     4     Engine exhaust gas recirculation       1399 4766     2     DOC temperature too high.
                   temperature voltage below normal       1400 4766     2     DOC temperature too low.
                   or shorted to low.
                                                          1401 4766     15    DOC outlet temperature above
1372 51      5     Engine throttle valve 1, position                          normal operational range.
                   1 current below normal or open
                   circuit.                               1402 4766     3     DOC outlet temperature voltage
                                                                              above normal or shorted to high.
1375 51      3     Engine throttle valve 1, position
                   1 voltage above normal or shorted      1403 4766     4     DOC outlet temperature voltage
                   to high. Short circuit to battery 1.                       below normal or shorted to low.
1376 51      3     Engine throttle valve 1, position      1404 4766     2     DOC intake temperature error.
                   1 voltage above normal or shorted      1405 4766     15    DOC Intake temperature above
                   to high. Short circuit to battery 2.                       normal operational range.
1377 51      4     Engine throttle valve 1, position      1406 4766     3     DOC intake temperature voltage
                   1 voltage below normal or shorted                          above normal or shorted to high.
                   to low. Short circuit to ground 1.
                                                          1407 4766     4     DOC intake temperature voltage
1378 51      4     Engine throttle valve 1, position                          below normal or shorted to low.
                   1 voltage below normal or shorted
                                                          1408 4766     2     DOC intake temperature does
                   to low. Short circuit to ground 2.
                                                                              not change.
1379 51      6     Engine throttle valve 1, position
                                                          142   520256 9      Timeout of EAT control receive
                   1 current above normal or
                                                                              message. CAN message is not
                   grounded circuit.
                                                                              received.
1382 51      7     Engine throttle valve 1 position
                                                          144   523211 9      Timeout error of CAN receive
                   1 mechanical system not
                                                                              frame EBC1.
                   responding or out of adjustment.
                   Valve stuck closed.                    154   523212 9      Timeout error of CAN receive
                                                                              frame engine protection.
1383 51      7     Engine throttle valve 1 position
                   1 mechanical system not                1540 520254 8       The stand still regeneration
                   responding or out of adjustment.                           mode time exceeds the long limit
                   Valve stuck open.                                          threshold.
1391 51      3     Engine throttle valve 1, position      1541 520255 2       Hoses connected to the dp DPF
                   1 voltage above normal or shorted                          SENT sensor inverted. Swap
                   to high.                                                   hoses.
                                                          155   523741 14     Engine shutdown request via
                                                                              CAN.
219   520253 2     Rolling counter fault CAN           40    1485    3     ECM main relay voltage above
                   message EAT Control.                                    normal or shorted to high of
                                                                           actuator relay 3.
220   4206   2     Fault check for Rolling Counter
                   of TSC1AE.                          41    1485    4     ECM main relay voltage below
                                                                           normal or shorted to low.
221   4206   2     Fault check for Rolling Counter
                   of TSC1AR.                          42    1485    4     ECM main relay voltage below
                                                                           normal or shorted to low of
222   4206   2     Fault check for Rolling Counter                         actuator relay 2.
                   of TSC1TE.
                                                       43    1485    4     ECM main relay voltage below
223   4206   2     Fault check for Rolling Counter                         normal or shorted to low of
                   of TSC1TR.                                              actuator relay 3.
349   3349   0     Timeout error of CAN receive        48    168     0     Battery voltage above normal
                   frame active TSC1AE.                                    operational range.
350   3349   0     Timeout error of CAN receive        49    168     1     Battery voltage low normal
                   frame passive TSC1AE.                                   operational range.
351   3349   0     Timeout error of CAN receive        50    168     3     Battery voltage above normal or
                   frame active TSC1AR.                                    shorted to high.
352   3349   0     Timeout error of CAN receive        51    168     4     Battery voltage above normal or
                   frame passive TSC1AR.                                   shorted to low.
353   3349   0     Timeout error of CAN receive        516   523982 0      Power stage diagnosis disabled.
                   frame TSC1TE active.                                    High battery voltage.
354   3349   0     TSC1 receive timeout error.         517   523982 1      Power stage diagnosis disabled.
                   Short circuit to ground error.                          Low battery voltage.
355   3349   0     Timeout error of CAN receive        52    168     0     High battery voltage. Warning
                   frame TSC1TR.                                           threshold is exceeded.
356   3349   0     Passive timeout error of CAN        567   27      5     Engine exhaust gas recirculation
                   receive frame TSC1TR.                                   1 valve position current below
361   3349   0     Timeout error of CAN receive                            normal or open circuit.
                   frame TSC1AE. Traction Control.     570   27      3     Engine exhaust gas recirculation
363   3349   0     Timeout error of CAN receive                            1 valve position voltage above
                   frame TSC1AR. Retarder.                                 normal or shorted to battery 1.
365   3349   0     Timeout error of CAN receive        571   27      3     Engine exhaust gas recirculation
                   frame TSC1TE. Setpoint.                                 1 valve position voltage above
                                                                           normal or shorted to battery 2.
572   27     4     Engine exhaust gas recirculation       614   171   4     Ambient air temperature sensor
                   1 valve position voltage below                           voltage below normal or shorted to
                   normal or shorted to ground 1.                           low.
573   27     4     Engine exhaust gas recirculation       615   723   8     Camshaft speed sensor abnormal
                   1 valve position voltage below                           frequency or pulse width or period.
                   normal or shorted to ground 2.         616   723   14    Camshaft sensor detection. Out of
574   27     6     Engine exhaust gas recirculation                         range, signal disrupted, no signal.
                   1 valve position current above         617   723   13    Offset angle between crank and
                   normal or grounded circuit.                              camshaft sensor is too large.
577   27     7     Engine exhaust gas recirculation       618   4201 8      Crankshaft sensor detection. Out
                   1 valve position. Mechanical                             of range, signal disrupted, no
                   system not responding or out of                          signal.
                   adjustment. Valve stuck closed.
                                                          619   4201 14     Crankshaft speed sensor. Speed
578   27     7     Engine exhaust gas recirculation                         detection, out of range, signal
                   1 valve position. Mechanical                             disrupted or no signal.
                   system not responding or out of
                   adjustment. Valve stuck open.          68    1669 14     CAN Bus ID-5. CAN Hardware
                                                                            registers are not updated within the
582   5763 3       Engine exhaust gas recirculation 1,                      expected time.
                   actuator 1 voltage above normal or
                   shorted to high.                       70    110   2     Engine Coolant Temperature. Data
                                                                            erratic, intermittent or incorrect.
583   5763 4       Engine exhaust gas recirculation 1,
                   actuator 1 voltage below normal or     709   97    3     Water in fuel indicator 1. Voltage
                   shorted to low.                                          above normal or shorted to high.
586   3055 14      Internal software error ECU.           710   97    4     Water in fuel indicator 1. Voltage
                   Injection cut off.                                       below normal or shorted to low.
587   190    0     Engine speed above warning             721   94    15    Low fuel pressure system, max.
                   threshold. Over speed detection in                       physical range exceeded.
                   component engine protection.           723   94    3     Engine fuel pressure sensor
588   190    0     Engine speed above warning                               voltage above normal or shorted to
                   threshold. FOC-Level 1.                                  high.
589   190    0     Engine speed above warning             724   94    4     Engine fuel pressure sensor
                   threshold. FOC-Level 2.                                  voltage below normal or shorted to
                                                                            low.
590   190    0     Engine speed above warning
                   threshold. Overrun Mode.               725   94    1     Low fuel pressure system, warning
                                                                            threshold exceeded.
610   171    15    Environment temperature sensor,
                   temperature above upper physical       726   94    1     Low fuel pressure, shut off
                   threshold.                                               threshold exceeded.
                                                          75    110   3     Engine coolant temperature
                                                                            voltage above normal or shorted to
                                                                            high.
                                                          76    110   4     Engine coolant temperature
                                                                            voltage below normal or shorted to
                                                                            low.
77    110   0    High coolant temperature. Warning      822   2797 6      Engine fuel 1 injector, Group
                 threshold exceeded.                                      1 current above normal or
                                                                          grounded circuit.
78    110   0    Coolant temperature. System
                 reaction initiated.                    823   2798 6      Engine fuel 1 injector, Group
                                                                          2 current above normal or
797   676   12   Engine cold start aid relay error.                       grounded circuit.
798   676   5    Engine cold start aid relay current    824   5358 6      Engine cylinder 1 fuel injection
                 below normal or open circuit.                            quantity above normal or grounded
799   676   5    Engine cold start aid relay current                      circuit. Short circuit of the power
                 below normal or open circuit.                            stage low-side.
80    411   2    Intake air massflow not in expected    825   5359 6      Engine cylinder 2 fuel injection
                 range.                                                   quantity above normal or grounded
                                                                          circuit. Short circuit of the power
803   676   3    Engine cold start aid relay voltage                      stage low-side.
                 above normal or shorted to high.
                                                        826   5360 6      Engine cylinder 3 fuel injection
805   676   4    Engine cold start aid relay voltage                      quantity above normal or grounded
                 below normal or shorted to low.                          circuit. Short circuit of the power
807   2797 14    Engine fuel 1 injector, Group 1.                         stage low-side.
                 Number of possible injections          827   5361 6      Engine cylinder 4 fuel injection
                 limited by the injection valve.                          quantity above normal or grounded
815   2797 4     Engine fuel 1 injector, Group                            circuit. Short circuit of the power
                 1 voltage below normal or shorted                        stage low-side.
                 to low.                                828   5362 6      Engine cylinder 5 fuel injection
816   5358 5     Engine cylinder 1 fuel injection                         quantity above normal or grounded
                 quantity current below normal or                         circuit. Short circuit of the power
                 open circuit.                                            stage low-side.
817   5359 5     Engine cylinder 2 fuel injection       829   5363 6      Engine cylinder 6 fuel injection
                 quantity current below normal or                         quantity above normal or grounded
                 open circuit.                                            circuit. Short circuit of the power
                                                                          stage low-side.
818   5360 5     Engine cylinder 3 fuel injection
                 quantity current below normal or       83    111   1     Coolant level too low.
                 open circuit.                          830   5358 6      Engine cylinder 1 fuel injection
819   5361 5     Engine cylinder 4 fuel injection                         quantity above normal or grounded
                 quantity current below normal or                         circuit. Short circuit between high-
                 open circuit.                                            side and low-side of the power
                                                                          stage.
820   5362 5     Engine cylinder 5 fuel injection
                 quantity current below normal or
                 open circuit.
831   5359 6       Engine cylinder 2 fuel injection       854   7103 5      Engine fuel metering rail pump
                   quantity above normal or grounded                        current below normal or open
                   circuit. Short circuit between high-                     circuit.
                   side and low-side of the power         855   7103 3      Engine fuel metering rail pump
                   stage.                                                   voltage above normal or shorted to
832   5360 6       Engine cylinder 3 fuel injection                         high. Short circuit to battery on the
                   quantity above normal or grounded                        high side power stage.
                   circuit. Short circuit between high-   856   7103 3      Engine fuel metering rail pump
                   side and low-side of the power                           voltage above normal or shorted to
                   stage.                                                   high. Short circuit to battery on the
833   5361 6       Engine cylinder 4 fuel injection                         low side power stage.
                   quantity above normal or grounded      857   7103 4      Engine fuel metering rail pump
                   circuit. Short circuit between high-                     voltage below normal or shorted to
                   side and low-side of the power                           low. Short circuit to battery on the
                   stage.                                                   high side power stage.
834   5362 6       Engine cylinder 5 fuel injection       858   7103 4      Engine fuel metering rail pump
                   quantity above normal or grounded                        voltage below normal or shorted to
                   circuit. Short circuit between high-                     low. Short circuit to battery on the
                   side and low-side of the power                           low side power stage.
                   stage.
                                                          859   7103 6      Engine fuel metering rail pump
835   5363 6       Engine cylinder 6 fuel injection                         current above normal or grounded
                   quantity above normal or grounded                        circuit.
                   circuit. Short circuit between high-
                   side and low-side of the power         868   629   12    Function monitoring: fault of ECU
                   stage.                                                   ADC. Null load test pulse.
836   105    3     Engine intake manifold                 869   629   12    Function monitoring: fault of ECU
                   temperature voltage above normal                         ADC. Test voltage.
                   or shorted to high.                    870   629   12    ECU. DFC to indicate ICO request
837   105    4     Engine intake manifold                                   from MoCSOP module.
                   temperature voltage below normal       871   91    14    Function monitoring: Monitoring of
                   or shorted to low.                                       accelerator pedal position.
838   2797 14      Engine fuel 1 injector, group          875   190   2     Function monitoring: Fault of
                   1 missing injector adjustment value                      engine speed check.
                   programming injector 1.
                                                          876   5357 2      Engine fuel injection error for
839   2798 14      Engine fuel 1 injector, group                            multiple cylinders. Diagnostic fault
                   2 missing injector adjustment value                      check error between level
                   programming injector 2.                                  1 energizing time and level
                                                                            2 information.
877   5441   2     Engine fuel injection timing error     888   513     2     Actual engine percent torque.
                   for multiple cylinders.                                    DFC to report in torque
                                                                              comparison error.
878   5357   2     Engine fuel injection error for
                   multiple cylinders. Diagnostic         889   520250 2      Function monitoring: Error in the
                   fault check to report the error                            post-build selectable monitoring.
                   due to non plausibility in ZFC.        890   629     12    ECU. Status of the EMM alarm
879   523612 12    Internal recovery. Diagnosis fault                         FCCU0 which is read out of the
                   check to report the error to                               FCCU hardware module.
                   demand for an ICO due to an            91    1109    2     Engine protection system
                   error in the PoI2 shut-off.                                approaching shutdown. Engine
88    598    10    Clutch switch. Abnormal rate of                            shut off demand ignored.
                   change.                                92    1109    14    Engine protection system
880   523612 12    Internal recovery. Diagnosis fault                         approaching shutdown. Shut off
                   check to report the error to                               request from supervisory
                   demand for an ICO due to an                                monitoring function.
                   error in the PoI3 efficiency factor.   996   629     12    ECU. Diagnostic fault check to
881   523612 12    Internal recovery. Diagnosis fault                         report ABE active state.
                   check to report the error to           997   629     12    Function monitoring: Fault of
                   demand for an ICO due to an                                ECU, WDA active by
                   error in change of EOM.                                    inquiry/response communication.
882   5357   2     Engine fuel injection error for        998   629     12    Function monitoring: Fault of
                   multiple cylinders. Diagnosis                              ECU, Error Pin active suspision
                   fault check to report the error to                         of HW fault.
                   demand for an ICO due to an
                   error in total torque relevant         999   629     12    Function monitoring: Fault of
                   quantity.                                                  ECU, WDA active by overvoltage
                                                                              detection.
883   5357   2     Engine fuel injection error for
                   multiple cylinders. Diagnostic         The following DTC fault code range shares the same
                   fault check to report the error        description. Replace the ECU.
                   due to injection quantity              DTC 891 - 945       Description
                   correction.
                                                          SPN   629           Internal ECU error.
884   5442   2     Engine fuel injection pressure
                   error for multiple cylinders.          FMI   12
42 Turntable    11 Shorted   TCON detected that Turntable Rotate            * With a voltmeter, measure Y24.
   Rotate CW       to        C4TRL circuit is   functions will not          Proper resistance should be between
   Coil            supply    shorted to 12 V or operate.                    5 - 60 ohms. Replace Y24 if
                   voltage   GND.                                           resistance is outside of those values.
                                                                            * Verify wiring for C4TRL (WH, TCON
                                                                            J3-12) and check for open or short
                                                                            circuits.
43 Turntable    11 Shorted   TCON detected that Turntable Rotate            * With a voltmeter, measure Y23.
   Rotate          to        C5TRR circuit is   functions will not          Proper resistance should be between
   CCW Coil        supply    shorted to 12 V or operate.                    5 - 60 ohms. Replace Y23 if
                   voltage   GND.                                           resistance is outside of those values.
                                                                            * Verify wiring for C5TRR (WH/BK,
                                                                            TCON J3-1) and check for open or
                                                                            short circuits.
44 Drive        27 Active    Toggle switch input    Drive Enable switch     *Verify with a voltmeter that the Drive
   Enable          at        was detected as        will not operate,       Enable Toggle Switch (TS15) is
   Toggle          startup   HIGH at start-up.      possibly preventing     operating properly.
   Switch                                           drive while the         * C143DEL (BL/RD, PCON J16-7)
                                                    turntable is rotated.   should be 0 V with the switch OFF
                                                                            and 12 V with the switch held in the
                                                                            ON position.
                                                                            *Cycle power to allow the machine to
                                                                            re-test the fault.
62 Prox       27 Active    Toggle switch input   The Jib Up or Down      *Verify with a voltmeter that the Jib
   Override      at        was detected as       functions will not      Up/Down Toggle Switch (TS8) is
   Togggle       startup   HIGH at start-up.     operate.                operating properly.
   Switch                                                                * C43JU (BL, PCON J17-6) should be
                                                                         0 V with the switch OFF and 12 V with
                                                                         the switch held in the UP position.
                                                                         * C44JD (BL/BK, PCON J17-8)
                                                                         should be 0 V with the switch OFF
                                                                         and 12 V with the switch held in the
                                                                         DOWN position.
                                                                         Cycle power to allow the machine to
                                                                         re-test the fault.
68 Ground     27 Active    Button was held at    The function            * Release the ground control buttons
   Function      at        system start, or is   associated with the     and cycle power. * If problem persists,
   Enable        startup   shorted on the        stuck button will not   open ground control box and open the
   Button                  ground control        operate.                Display Controller access door, being
                           panel.                                        careful to keep water out. Verify the
                                                                         ribbon cables are properly seated and
                                                                         dry.
                                                                         * Re-seat and/or replace ribbon
                                                                         cables if necessary.
                                                                         * Replace ground control overlay.