LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lincoln >> 2020 >> Navigator Base, 4WD >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> DTC Index (Exterior Trim - Module Communications Network) >> Instrumentation, Message Center And Warning Chimes DTCS >> IPC
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Instrumentation, Message Center And Warning Chimes DTCS: IPC

DTC Description Action
P0460:11 Fuel Level Sensor "A" Circuit: Circuit Short To Ground GO to Pinpoint Test C
P0460:13 Fuel Level Sensor "A" Circuit: Circuit Open GO to Pinpoint Test C
U0100:00 Lost Communication With ECM/PCM "A": No Sub Type Information GO to Pinpoint Test BL
U0102:00 Lost Communication With Transfer Case Control Module A: No Sub Type Information GO to Pinpoint Test BM
U0103:00 Lost Communication With Gear Shift Control Module A: No Sub Type Information GO to Pinpoint Test BN
U0121:00 Lost Communication With Anti-Lock Brake System (ABS) Control Module: No Sub Type Information GO to Pinpoint Test BO
U0137:00 Lost Communication With Trailer Brake Control Module: No Sub Type Information GO to Pinpoint Test BP
U0140:00 Lost Communication With Body Control Module: No Sub Type Information GO to Pinpoint Test BQ
U0151:00 Lost Communication With Restraints Control Module: No Sub Type Information GO to Pinpoint Test BR
U0158:00 Lost Communication With Head Up Display: No Sub Type Information GO to Pinpoint Test BS
U0159:00 Lost Communication With Parking Assist Control Module "A": No Sub Type Information GO to Pinpoint Test BT
U0193:00 Lost Communication With "Digital Audio Control Module A": No Sub Type Information GO to Pinpoint Test BU
U0199:00 Lost Communication With "Door Control Module A": No Sub Type Information GO to Pinpoint Test BV
U0212:00 Lost Communication With Steering Column Control Module: No Sub Type Information GO to Pinpoint Test BW
U0232:00 Lost Communication With Side Obstacle Detection Control Module - Left: No Sub Type Information GO to Pinpoint Test BX
U0233:00 Lost Communication With Side Obstacle Detection Control Module - Right: No Sub Type Information GO to Pinpoint Test BX
U023A:00 Lost Communication With Image Processing Module A: No Sub Type Information GO to Pinpoint Test BY
U0253:00 Lost Communication With Accessory Protocol Interface Module: No Sub Type Information GO to Pinpoint Test BZ
U0256:00 Lost Communication With Front Controls Interface Module "A": No Sub Type Information GO to Pinpoint Test CA
U0260:00 Lost Communication With Seat Control Switch Module "A": No Sub Type Information GO to Pinpoint Test CB
U0401:00 Invalid Data Received from ECM/PCM A: No Sub Type Information This DTC sets when the IPC receives invalid data for the speedometer or engine temperature data for 5 seconds or longer from the PCM. RETRIEVE and REPAIR all non-network Diagnostic Trouble Codes (DTCs) in the PCM and other modules on the network. REFER to the appropriate service information in ELECTRONIC ENGINE CONTROLS - 3.5L ECOBOOST (272KW/370PS) . If no Diagnostic Trouble Codes (DTCs) are present in the PCM, DIAGNOSE the observable symptom.
U0401:81 Invalid Data Received from ECM/PCM A: Invalid Serial Data Received This DTC sets when the IPC receives invalid data speedometer or engine temperature data for 5 seconds or longer from the PCM. RETRIEVE and REPAIR all non-network Diagnostic Trouble Codes (DTCs) in the PCM and other modules on the network. REFER to the appropriate service information in ELECTRONIC ENGINE CONTROLS - 3.5L ECOBOOST (272KW/370PS) . If no Diagnostic Trouble Codes (DTCs) are present in the PCM, DIAGNOSE the observable symptom.
U0401:82 Invalid Data Received from ECM/PCM A: Alive/Sequence Counter Incorrect/Not Updated This DTC sets when the IPC fails to receive updated data for the cruise control, adaptive cruise control or gear shift data for 5 seconds or longer from the PCM. RETRIEVE and REPAIR all non-network Diagnostic Trouble Codes (DTCs) in the PCM and other modules on the network. REFER to the appropriate service information in ELECTRONIC ENGINE CONTROLS - 3.5L ECOBOOST (272KW/370PS) . If no Diagnostic Trouble Codes (DTCs) are present in the PCM, DIAGNOSE the observable symptom.
U0401:86 Invalid Data Received from ECM/PCM A: Signal Invalid This DTC sets when the IPC receives invalid odometer data for 5 seconds or longer from the PCM. RETRIEVE and REPAIR all non-network Diagnostic Trouble Codes (DTCs) in the PCM and other modules on the network. REFER to the appropriate service information in ELECTRONIC ENGINE CONTROLS - 3.5L ECOBOOST (272KW/370PS) . If no Diagnostic Trouble Codes (DTCs) are present in the PCM, DIAGNOSE the observable symptom.
U0405:56 Invalid Data Received From Cruise Control Module: Invalid/Incompatible Configuration This DTC sets when the IPC receives mismatched adaptive cruise control data for 5 seconds or longer from the CCM through the IPMA. CHECK the vehicle service history for recent service actions related to this module. This DTC sets due to incomplete or incorrect PMI procedures. If there have been recent service actions with this module, REPEAT the PMI procedure using As-Built data as directed by the scan tool. If there have been no recent service actions, INSTALL a new module to correct the failure to retain configuration data.
U0415:00 Invalid Data Received From Anti-Lock Brake System (ABS) Control Module: No Sub Type Information This DTC sets when the IPC receives invalid drive mode data for 5 seconds or longer from the ABS module. RETRIEVE and REPAIR all non-network Diagnostic Trouble Codes (DTCs) in the ABS module and other modules on the network. REFER to: Anti-Lock Brake System (ABS) and Stability Control . If no Diagnostic Trouble Codes (DTCs) are present in the ABS module, DIAGNOSE the observable symptom.
U0415:82 Invalid Data Received From Anti-Lock Brake System (ABS) Control Module: Alive/Sequence Counter Incorrect/Not Updated This DTC sets when the IPC fails to receive updated ABS data for 5 seconds or longer from the ABS module. RETRIEVE and REPAIR all non-network Diagnostic Trouble Codes (DTCs) in the ABS module and other modules on the network. REFER to: Anti-Lock Brake System (ABS) and Stability Control . If no Diagnostic Trouble Codes (DTCs) are present in the ABS module, DIAGNOSE the observable symptom.
U0416:82 Invalid Data Received From Vehicle Dynamics Control Module: Alive/Sequence Counter Incorrect/Not Updated This DTC sets when the IPC fails to receive updated vehicle dynamics data for 5 seconds or longer from the VDM. RETRIEVE and REPAIR all non-network Diagnostic Trouble Codes (DTCs) in the VDM and other modules on the network. REFER to: Vehicle Dynamic Suspension . If no Diagnostic Trouble Codes (DTCs) are present in the VDM module, DIAGNOSE the observable symptom.
U0420:82 Invalid Data Received From Power Steering Control Module: Alive/Sequence Counter Incorrect/Not Updated This DTC sets when the IPC fails to receive power steering data for 5 seconds or longer from the PSCM. RETRIEVE and REPAIR all non-network Diagnostic Trouble Codes (DTCs) in the PSCM and other modules on the network. REFER to: Power Steering . If no Diagnostic Trouble Codes (DTCs) are present in the PSCM, DIAGNOSE the observable symptom.
U0422:00 Invalid Data Received From Body Control Module: No Sub Type Information This DTC sets when the IPC receives invalid TPMS data for 5 seconds or longer from the BCM. RETRIEVE and REPAIR all non-network Diagnostic Trouble Codes (DTCs) in the BCM and other modules on the network. REFER to: Body Control Module (BCM) . If no Diagnostic Trouble Codes (DTCs) are present in the BCM, DIAGNOSE the observable symptom.
U0424:80 Invalid Data Received From HVAC Control Module: ISO/SAE Reserved This DTC sets when the IPC receives invalid outside air temperature data for 5 seconds or longer from the HVAC module. RETRIEVE and REPAIR all non-network Diagnostic Trouble Codes (DTCs) in the FCIM, PCM and other modules on the network. For FCIM Diagnostic Trouble Codes (DTCs), REFER to: Information and Entertainment System . For PCM Diagnostic Trouble Codes (DTCs), refer to the appropriate service information in ELECTRONIC ENGINE CONTROLS - 3.5L ECOBOOST (272KW/370PS) .
U0424:81 Invalid Data Received From HVAC Control Module: Invalid Serial Data Received This DTC sets when the IPC receives unknown outside air temperature data for 5 seconds or longer from the HVAC module. RETRIEVE and REPAIR all non-network Diagnostic Trouble Codes (DTCs) in the FCIM, PCM and other modules on the network. For FCIM Diagnostic Trouble Codes (DTCs), REFER to: Information and Entertainment System . For PCM Diagnostic Trouble Codes (DTCs), refer to the appropriate service information in ELECTRONIC ENGINE CONTROLS - 3.5L ECOBOOST (272KW/370PS) . If no Diagnostic Trouble Codes (DTCs) are present in the FCIM or PCM, DIAGNOSE the observable symptom.
U0424:82 Invalid Data Received From HVAC Control Module: Alive/Sequence Counter Incorrect/Not Updated This DTC sets when the IPC fails to receive updated outside air temperature data for 5 seconds or longer from the HVAC module. RETRIEVE and REPAIR all non-network Diagnostic Trouble Codes (DTCs) in the FCIM, PCM and other modules on the network. For FCIM Diagnostic Trouble Codes (DTCs), REFER to: Information and Entertainment System . For PCM Diagnostic Trouble Codes (DTCs), refer to the appropriate service information in ELECTRONIC ENGINE CONTROLS - 3.5L ECOBOOST (272KW/370PS) . If no Diagnostic Trouble Codes (DTCs) are present in the FCIM or PCM, DIAGNOSE the observable symptom.
U0431:82 Invalid Data Received From Body Control Module "A": Alive/Sequence Counter Incorrect/Not Updated This DTC sets when the IPC fails to receive updated load shed data for 5 seconds or longer from the BCM. RETRIEVE and REPAIR all non-network Diagnostic Trouble Codes (DTCs) in the BCM and other modules on the network. REFER to: Body Control Module (BCM) . If no Diagnostic Trouble Codes (DTCs) are present in the BCM, DIAGNOSE the observable symptom.
U0452:81 Invalid Data Received From Restraints Control Module: Invalid Serial Data Received This DTC sets when the IPC receives invalid network data for 5 seconds or longer from the RCM due to incorrect Belt-Minder® configuration in the IPC. RETRIEVE and REPAIR all non-network Diagnostic Trouble Codes (DTCs) in the RCM and other modules on the network. REFER to: Airbag Supplemental Restraint System (SRS) . If no Diagnostic Trouble Codes (DTCs) are present in the RCM, DIAGNOSE the observable symptom.
U045A:82 Invalid Data Received From Parking Assist Control Module "A": Alive/Sequence Counter Incorrect/Not Updated This DTC sets when the IPC fails to receive updated active park assist data for 5 seconds or longer from the PAM (part of the BCM). RETRIEVE and REPAIR all non-network Diagnostic Trouble Codes (DTCs) in the BCM and other modules on the network. REFER to: Body Control Module (BCM) . If no Diagnostic Trouble Codes (DTCs) are present in the BCM, DIAGNOSE the observable symptom.
U0531:82 Invalid Data Received From Rear Gate Module: Alive/Sequence Counter Incorrect/Not Updated This DTC sets when the IPC fails to receive updated power liftgate data for 5 seconds or longer from the RGTM. RETRIEVE and REPAIR all non-network Diagnostic Trouble Codes (DTCs) in the RGTM and other modules on the network. REFER to: Body Closures . If no Diagnostic Trouble Codes (DTCs) are present in the RGTM, DIAGNOSE the observable symptom.
U0533:00 Invalid Data Received From Side Obstacle Detection Control Module-Left: No Sub Type Information This DTC sets when the IPC receives invalid data for 1.6 seconds or longer from the SODL. CHECK the vehicle service history for recent service actions related to this module. This DTC sets due to incomplete or incorrect PMI procedures. If there have been recent service actions with this module, REPEAT the PMI procedure as directed by the scan tool. If there have been no recent service actions, INSTALL a new module to correct the failure to retain configuration data.
U0533:56 Invalid Data Received From Side Obstacle Detection Control Module-Left Invalid / Incompatible Configuration This DTC sets when the IPC receives invalid data for 1.6 seconds or longer from the SODL. CHECK the vehicle service history for recent service actions related to this module. This DTC sets due to incomplete or incorrect PMI procedures. If there have been recent service actions with this module, REPEAT the PMI procedure as directed by the scan tool. If there have been no recent service actions, INSTALL a new module to correct the failure to retain configuration data.
U0534:00 Invalid Data Received From Side Obstacle Detection Control Module-Right: No Sub Type Information This DTC sets when the IPC receives invalid data from the SODR. CHECK the vehicle service history for recent service actions related to this module. This DTC sets due to incomplete or incorrect PMI procedures. If there have been recent service actions with this module, REPEAT the PMI procedure as directed by the scan tool. If there have been no recent service actions, INSTALL a new module to correct the failure to retain configuration data.
U0534:56 Invalid Data Received From Side Obstacle Detection Control Module-Right: Invalid/Incompatible Configuration This DTC sets when the IPC receives invalid data for 1.6 seconds or longer from the SODR. CHECK the vehicle service history for recent service actions related to this module. This DTC sets due to incomplete or incorrect PMI procedures. If there have been recent service actions with this module, REPEAT the PMI procedure as directed by the scan tool. If there have been no recent service actions, INSTALL a new module to correct the failure to retain configuration data.
U0542:82 Invalid Data Received From Headlamp Control Module "A": Alive/Sequence Counter Incorrect/Not Updated This DTC sets when the IPC receives invalid adaptive headlamp data for 5 seconds or longer from the HCM. RETRIEVE and REPAIR all non-network Diagnostic Trouble Codes (DTCs) in the HCM and other modules on the network. REFER to: Headlamps . If no Diagnostic Trouble Codes (DTCs) are present in the HCM, DIAGNOSE the observable symptom.
U0557:80 Invalid Data Received From Front Controls Interface Module "A": ISO/SAE Reserved This DTC sets when the IPC receives invalid outside air temperature data for 5 seconds or longer from the FCIM. RETRIEVE and REPAIR all non-network Diagnostic Trouble Codes (DTCs) in the FCIM and other modules on the network. REFER to: Information and Entertainment System . If no Diagnostic Trouble Codes (DTCs) are present in the FCIM, DIAGNOSE the observable symptom.
U0557:81 Invalid Data Received From Front Controls Interface Module "A": Invalid Serial Data Received This DTC sets when the IPC receives unknown outside air temperature data for 5 seconds or longer from the FCIM. RETRIEVE and REPAIR all non-network Diagnostic Trouble Codes (DTCs) in the FCIM and other modules on the network. REFER to: Information and Entertainment System . If no Diagnostic Trouble Codes (DTCs) are present in the FCIM, DIAGNOSE the observable symptom.
U0557:82 Invalid Data Received From Front Controls Interface Module "A": Alive/Sequence Counter Incorrect/Not Updated This DTC sets when the IPC fails to receive updated outside air temperature data for 5 seconds or longer from the FCIM. RETRIEVE and REPAIR all non-network Diagnostic Trouble Codes (DTCs) in the FCIM and other modules on the network. REFER to: Information and Entertainment System . If no Diagnostic Trouble Codes (DTCs) are present in the FCIM, DIAGNOSE the observable symptom.
U2100:00 Initial Configuration Not Complete: No Sub Type Information CHECK the vehicle service history for recent service actions related to this module. This DTC sets due to incomplete or incorrect PMI procedures. If there have been recent service actions with this module, REPEAT the PMI procedure using As-Built data as directed by the scan tool. REFER to: Module Programming . If there have been no recent service actions, INSTALL a new module to correct the failure to retain configuration data.
U3000:04 Control Module: System Internal Failure CLEAR the Diagnostic Trouble Codes (DTCs). REPEAT the self-test. If DTC U3000:04 is retrieved again, Refer to IPC Guided Routine Testing .
U3000:46 Control Module: Calibration/Parameter Memory Failure CLEAR the Diagnostic Trouble Codes (DTCs). REPEAT the self-test. If DTC U3000:46 is retrieved again, Refer to IPC Guided Routine Testing .
U3003:16 Battery Voltage: Circuit Voltage Below Threshold GO to Pinpoint Test CC
U3003:17 Battery Voltage: Circuit Voltage Above Threshold GO to Pinpoint Test CD
U300A:64 Ignition Switch: Signal Plausibility Failure DTC U300A:64 sets in continuous memory when the IPC detects a messaged START input for 15 seconds or longer. Once the fault condition is detected, the IPC operates with limited functionality for 15 seconds then returns to full functionality. DTC U300A:64 sets in continuous memory when the IPC detects a messaged START input for 15 seconds or longer. Once the fault condition is detected, the IPC appears off. DIAGNOSE any ignition or starting system concerns. REFER to: Steering Wheel and Column Electrical Components .