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Communication System Diagnosis

Before preceding to the Multiplex Communication Network (MCN) or Diagnostic Communication Network (DCN) index tables to diagnose a network DTC, review equipment level of vehicle. Make note of module and systems vehicle is not equipped with. Before proceeding to a pinpoint test, make sure DTC being diagnosed is referencing a module or system which the vehicle is equipped with. The New Generation Star (NGS) tester may produce a network DTC for no communication if the vehicle is not equipped with the suspect module or system. The New Generation Star (NGS) tester will interpret a not equipped module as a communication failure. If a DTC is retrieved for a not equipped module or system disregard this DTC. If a not equipped DTC is the only DTC retrieved the communication system self test should be considered passed.

MCN DTC INDEX FOR TAN/ORANGE WIRE & PINK/BLACK WIRE - TOWN CAR

DTC Module Involved Action
0000 ... Link Passed
0001 Powertrain Control Module (PCM) Test A 
0002 Electronic Automatic Temperature Control (EATC) Test B 
0003 PCM, EATC Test C 
MCN DTC INDEX FOR TAN/ORANGE WIRE & PINK/BLACK WIRE - CROWN VICTORIA & GRAND MARQUIS

DTC Module Involved Action
0000 ... Link Passed
0001 Powertrain Control Module (PCM) Test A 
0002 Electronic Automatic Temperature Control (EATC) Test B 
0003 PCM, EATC Test C 
0004 Fuel Indication Module (FIM) Test D 
0005 FIM, PCM Test E  . If Not Equipped With FIM, Test A 
0006 EATC, FIM If Equipped With EATC, Test B  . If Equipped With FIM, Test D  .
0007 EATC, FIM, PCM If Equipped With PCM Only, Test A  . If Not Equipped With FIM, Test C  . If Not Equipped With EATC, Test E  .
DCN DTC INDEX FOR LIGHT BLUE/WHITE WIRE - TOWN CAR

DTC Module Involved Action
0000 ... System Passed
0001 Lighting Control Module (LCM) Test F 
0002 Anti-Lock Brake System (ABS) Test G 
0003 ABS, LCM Test F 
0004 Driver Seat Module (DSM) Test H  . If Not Equipped With DSM, System Passed
0005 DSM, LCM Test F 
0006 ABS, DSM Test G 
0007 ABS, DSM, LSM Test F 
0008 Driver Door Module (DDM) Test J 
0009 DDM, LCM Test F 
000A ABS, DDM Test G 
000B ABS, DDM, LCM Test F 
000C DDM, Driver Seat Module (DSM) Test J 
000D DDM, DSM, LCM Test F 
000E ABS, DDM Test G 
000F ABS, DDM, DSM, LCM Test F 
0010 Integrated Air Bag Monitor (IABM) Test K 
0011 IABM, LCM Test F 
0012 ABS, IABM Test G 
0013 ABS, IABM, LCM Test F 
0014 DSM, IABM Test H  . If Not Equipped With DSM, Test K  .
0015 DSM, IABM, LCM Test H  . If Not Equipped With DSM, Test F  .
0016 ABS, DSM, IABM Test G 
0017 ABS, DSM, IABM, LCM Test F 
0018 DDM, IABM Test J 
0019 DDM, IABM, LCM Test F 
001A DDM, IABM, LCM Test G 
001B ABS, DDM, IABM, LCM Test F 
001C DDM, DSM, IABM Test J 
001D DDM, DSM, IABM, LCM Test F 
001E ABS, DDM, DSM, IABM Test F 
001F ABS, DDM, DSM, IABM, LCM Test L  . If Not Equipped With DSM, Test F  .
DCN DTC INDEX FOR LIGHT BLUE/WHITE WIRE - CROWN VICTORIA & GRAND MARQUIS

DCT Module Involved Action
0000 ... System Passed
0001 Lighting Control Module (LCM) Test F 
0002 Anti-Lock Brake System (ABS) Test G  . If not Equipped With ABS, System Passed.
0003 ABS, LCM Test G  . If Not Equipped With ABS, System Passes.
0004 Driver Seat Module (DSM) Test H  . If Not Equipped With DSM, System Passes.
0005 DSM, LCM Test H  . If Not Equipped With DSM, Test F  .
0006 ABS, DSM, LCM Test G  . If Not Equipped With ABS, Test H  . If Not Equipped With ABS Or DSM, System Passed.
0007 ABS, DSM Test G  . If Not Equipped With ABS, Test H  . If Not Equipped With ABS Or DSM, Test F  .
0008 Driver Door Module (DDM) Test J  . If Not Equipped With DDM, System passed.
0009 DDM, LCM Test J  . If Not Equipped With DDM, Test F  .
000A ABS, DDM Test G  . If Not Equipped With ABS, Test J  . If Not Equipped With ABS Or DDM, System Passed.
000B ABS, DDM, LCM Test G  . If Not Equipped With ABS, Test J  . If Not Equipped With ABS Or DDM, Test F  .
000C DDM, DSM Test J  . If Not Equipped With DDM, System Passed.
000D DDM, DSM, LCM Test J  . If Not Equipped With DDM, Test F  .
000E ABS, DDM DSM Test G  , If Not Equipped With ABS, Test J  . If Not Equipped With DDM Or ABS, System Passed.
000F ABS, DDM, DSM, LCM Test G  . If Not Equipped With ABS, Test J  , If Not Equipped With ABS Or DDM, Test F  .
0010 Integrated Air Bag Module (IABM) Test K 
0011 IABM Test F 
0012 ABS, IABM Test G  . If Not Equipped With ABS, Test K  .
0013 ABS, IABM, LCM Test G  . If Not Equipped With ABS, Test K  .
0014 DSM, IABM Test H  . If Not Equipped With DSM, Test K  .
0015 DSM, IABM, LCM Test H  . If Not Equipped With DSM, Test F  .
0016 ABS, DSM, IABM Test G  . If Not Equipped With ABS, Test H  . If Not Equipped With ABS Or DSM, Test K  .
0017 ABS, DSM, IABM, LCM Test G  . If Not Equipped With ABS, Test H  . If Not Equipped With ABS Or DSM, Test F  .
0018 DDM, IABM Test J  . If Not Equipped With DDM, Test K  .
0019 DDM, IABM, LCM Test J  . If Not Equipped With DDM, Test F  .
001A ABS, DDM, IABM Test G  . If Not Equipped With ABS, Test J  . If Not Equipped With ABS Or DDM, Test K  .
001B ABS, DDM, IABM, LCM Test G  . If Not Equipped With ABS, Test J  . If Not Equipped With ABS Or DDM, Test F  .
001C DDM, DSM, IABM Test J  . If Not Equipped With DDM, Test F  .
001D DDM, DSM, IABM, LCM Test J  . If Not Equipped With DDM, Test F  .
001E ABS, DDM, DSM, IABM Test G  . If Not Equipped With ABS, Test J  . If Not Equipped With ABS Or DDM, Test K  .
001F ABS, DDM, DSM, IABM, LCM Test L  . If Not Equipped With ABS, Test M  . If Not Equipped With DSM, Test N  . If Not Equipped With ABS Or DSM, Test P  . If Not Equipped With DDM, Test Q  . If Equipped With IABM & LCM Only, Test R  .
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