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Diagnostic Trouble Code (DTC) Definitions

WARNING: This page is about a different car, the 1997 Lincoln Continental. However, it is still accessible from the selected car via links, so may be relevant.
AIR BAG DIAGNOSTIC MONITOR DTC DEFINITIONS

DTC Source Module Description
B1342 (1) (2) ECU Defective
B1867 (1) (2) Lost Battery Feed Or Low Battery Feed Voltage
B1869 (1) (2) No Air Bag Indicator - Inoperative Indicator Circuit
B1913 (1) (2) Air Bag Driver/Passenger Circuit Short To Ground
B1914 (1) (2) Primary Crash Sensor Circuit Short To Ground
B1921 (1) (2) Air Bag Diagnostic Monitor Ground Circuit Open Or Not Mounted To Vehicle Properly
B1922 (1) (2) Safing Sensor Output Circuit Shorted To Battery Voltage
B1923 (1) (2) Memory Clear Circuit Improperly Grounded
B1924 (1) (2) System Disarm Failure Or Internal Diagnostic Monitor Fault
B1932 (1) (2) Driver Side Air Bag Circuit High Resistance Or Open
B1933 (1) (2) Passenger Side Air Bag Circuit High Resistance Or Open
B1934 (1) (2) Driver Side Air Bag Circuit Low Resistance Or Shorted
B1935 (1) (2) Passenger Side Air Bag Circuit Low Resistance Or Shorted
B1941 (1) (2) Right Primary Crash Sensor Feed/Return Circuit Open
B1942 (1) (2) Left Primary Crash Sensor Feed/Return Circuit Open
B1944 (1) (2) Right Primary Crash Sensor Not Mounted To Vehicle Properly Or Ground Circuit Open
B1945 (1) (2) Left Primary Crash Sensor Not Mounted To Vehicle Properly Or Ground Circuit Open
(1) There is no source module used. The air bag diagnostic monitor does not communicate with other modules over the BUS.
(2) See AIR BAG RESTRAINT SYSTEM article for testing procedure.
ANTI-LOCK BRAKE SYSTEM (ABS) CONTROL MODULE DTC DEFINITIONS

DTC Source Module Description
B1342 ABS (1) ECU Defective
B1485 ABS (1) Brake Pedal Switch Input Circuit Short To Battery
B1676 ABS (1) Battery Voltage Out Of Range
C1095 ABS (1) Hydraulic Pump Motor Circuit Failure
C1145 ABS (1) RF Speed Sensor Input Circuit Failure
C1155 ABS (1) LF Speed Sensor Input Circuit Failure
C1165 ABS (1) RR Speed Sensor Input Circuit Failure
C1175 ABS (1) LR Speed Sensor Input Circuit Failure
C1233 ABS (1) LF Wheel Speed Input Signal Missing
C1234 ABS (1) RF Wheel Speed Input Signal Missing
C1235 ABS (1) RR Wheel Speed Input Signal Missing
C1236 ABS (1) LR Wheel Speed Input Signal Missing
U1019 PCM (2) SCP Invalid Or Missing Data For Throttle
U1023 PCM (2) Engine RPM Signal Not Received
U1051 LCM (3) LCM Invalid Or Missing Data For Brakes
U1059 PCM (2) SCP Invalid Or Missing Data For Transmission PRNDL
U1308 PCM (2) SCP Invalid Or Missing For Function Read Engine Torque
U1612 PCM (2) Desired Axle Torque Limit Signal Not Acknowledged
(1) See BRAKES - ANTI-LOCK article in BRAKES section for testing procedure.
(2) Testing information is not available from manufacturer.
(3) Check fuses No. 12 (40-amp) and 16 (20-amp) in power distribution center at driver's side front corner of engine compartment, near battery. Check fuses No. 3 (10-amp), 4 (10-amp), 5 (10-amp), 19 (10-amp), 20 (10-amp) and 25 (10-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
CELLULAR PHONE MODULE (CPM) DTC DEFINITIONS

DTC Source Module Description
B1342 CPM (1) ECU Defective
B1844 CPM (2) Handset Button Circuit Failure
B1874 CPM (2) No Handset Detected
U1135 LCM (3) SCP Invalid Or Missing Data For Ignition Switch/Starter
U1235 VIC (3) SCP Invalid Or Missing Data For Displays
(1) Record all DTCs. Clear all DTCs. Repeat On-Demand Self-Test on CPM. If DTC B1342 is retrieved, replace CPM.
(2) Problem exists in phone handset circuit.
(3) Check fuses No. 5 (10-amp), 26 (10-amp) and 28 (10-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
DRIVER'S DOOR MODULE (DDM) DTC DEFINITIONS

DTC Source Module Description
B1319 DDM (1) Driver's Door Ajar Circuit Short To Ground
B1342 DDM (2) ECU Is Defective
B1396 DDM (2) Power Door Lock Short To Voltage
B1514 DDM (3) Driver's Door Handle Circuit Short To Ground
B1525 DDM (4) Keyless Entry Short To Voltage
B1529 DDM (5) Memory SET Switch Short To Battery
B1533 DDM (5) Memory "1" Switch Short To Battery
B1537 DDM (5) Memory "2" Switch Short To Battery
B1541 DDM (5) Any Mirror Switch Shorted To Battery
B1545 DDM (6) Seat Direction Switch Shorted To Battery Voltage
B1549 DDM (7) Master Switch Short To Battery Voltage
B1553 DDM (2) Deck Lid Release Short To Battery
U1029 ABS (8) Vehicle Speed Low Resolution Signal Not Received
U1067 PCM (9) Transmission Range Sensor Position Signal Missing Or Invalid
U1135 LCM (10) SCP Invalid Or Missing Data For Ignition Switch/Starter
U1199 LCM (11) SCP Invalid Or Missing Data For External Access Doors
U1206 LCM (11) Illuminated Entry Signal Received Invalid
U1213 LCM (12) Driver's Seat Occupied Signal Missing Or Invalid
U1235 VIC (10) SCP Invalid Or Missing Data For Displays
U1237 LCM (13) SCP Invalid Or Missing Data For Memory Storage
U1716 LCM (14) SCP Lack Of Acknowledgment For Electrical Energy Management
U1738 LCM (15) Horn Chirp/Panic Alarm Signal Not Acknowledged
U1750 LCM (10) SCP Lack Of Acknowledgment For Audible Warnings
U1794 DSM (16) SCP Lack Of Acknowledgment For Mirrors
U1797 LCM (15) SCP Lack Of Acknowledgment For Door Locks
U1798 LCM (15) SCP Lack Of Acknowledgment For External Access Doors
U1806 LCM (11) Illuminated Entry Signal Not Acknowledged
U1812 DSM (12) Seat Motion Switch Signal Not Acknowledged
(1) Check circuit for driver's door ajar switch and door ajar switch. If circuit and switch are okay, replace Driver's Door Module (DDM).
(2) See DOOR LOCKS & TRUNK RELEASE - POWER article for testing procedure.
(3) This in an invalid DTC. DO NOT attempt to perform service procedures for this DTC.
(4) See KEYLESS ENTRY SYSTEM - REMOTE article for testing procedure.
(5) See MIRRORS - POWER MEMORY article for testing procedure.
(6) See SEATS - POWER article for testing procedure.
(7) See POWER WINDOWS article for testing procedure.
(8) Check fuse No. 4 (60-amp) in power distribution center at driver's side front corner of engine compartment, near battery. Check fuses No. 5 (10-amp) and 32 (15-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
(9) Testing information is not available from manufacturer.
(10) Check fuses No. 5 (10-amp), 26 (10-amp) and 28 (10-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
(11) Check fuse No. 9 (40-amp) in power distribution center at driver's side front corner of engine compartment, near battery. Check fuses No. 1 (10-amp), 4 (10-amp), 5 (10-amp), 7 (15-amp), 13 (15-amp), 19 (10-amp), 25 (10-amp), 31 15-amp) and 39 (10-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
(12) Check fuses No. 13 (30-amp) and 14 (30-amp) in power distribution center at driver's side front corner of engine compartment, near battery. Check fuses No. 15 (10-amp) and 39 (10-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
(13) Check fuses No. 12 (40-amp) and 16 (20-amp) in power distribution center at driver's side front corner of engine compartment, near battery. Check fuses No. 3 (10-amp), 4 (10-amp), 5 (10-amp), 19 (10-amp), 20 (10-amp) and 25 (10-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
(14) Check fuses No. 8 (40-amp), 9 (40-amp) and 10 (20-amp) in power distribution center at driver's side front corner of engine compartment, near battery. Check fuses No. 28 (10-amp), 30 (10-amp) and 39 (10-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
(15) Check fuses No. 9 (40-amp) and 13 (30-amp) in power distribution center at driver's side front corner of engine compartment, near battery. Check fuses No. 4 (10-amp), 5 (10-amp), 8 (30-amp), 39 (10-amp) and 41 (20-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
(16) Check fuses No. 9 (40-amp) and 13 (30-amp) in power distribution center at driver's side front corner of engine compartment, near battery. Check fuses No. 39 (10-amp) and 41 (20-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
DRIVER'S SEAT MODULE (DSM) DTC DEFINITIONS

DTC Source Module Description
B1342 DSM (1) ECU Is Defective
B1663 DSM (2) Driver's Seat Front Up/Down Circuit Failure
B1664 DSM (2) Driver's Seat Rear Up/Down Circuit Failure
B1665 DSM (2) Driver's Seat Forward/Backward Circuit Failure
B1666 DSM (2) Driver's Seat Recline Circuit Failure
B1667 DSM (3) Driver's Mirror Up/Down Circuit Failure
B1668 DSM (3) Driver's Mirror Left/Right Circuit Failure
B1669 DSM (3) Passenger's Mirror Up/Down Circuit Failure
B1670 DSM (3) Passenger's Mirror Left/Right Circuit Failure
B1950 DSM (2) Seat Rear Up/Down Potentiometer Circuit Failure
B1952 DSM (2) Seat Rear Up/Down Potentiometer Short To Voltage
B1954 DSM (2) Seat Front Up/Down Potentiometer Circuit Failure
B1956 DSM (2) Seat Front Up/Down Potentiometer Short To Voltage
B1958 DSM (2) Seat Recline Forward/Backward Potentiometer Circuit Failure
B1960 DSM (2) Seat Recline Forward/Backward Potentiometer Short To Voltage
B1962 DSM (2) Seat Forward/Rearward Potentiometer Circuit Failure
B1964 DSM (2) Seat Forward/Rearward Potentiometer Short To Voltage
U1067 PCM (1) Manual Lever (PRNDL) Position Signal Missing Or Invalid
U1135 LCM (4) SCP Invalid Or Missing Data For Ignition Switch/Starter
U1180 DDM (5) SCP Invalid Or Missing Data For Personal Memory Features
U1181 DDM (5) SCP Invalid Or Missing Data For Personal Memory Features
U1194 DDM (5) SCP Invalid Or Missing Data For Mirrors
U1199 DDM (6) SCP Invalid Or Missing Data For External Access Doors
U1212 DDM (7) Driver's Seat Switch Signal Missing Or Invalid
U1213 DDM (6) Driver's Seat Occupied Signal Missing Or Invalid
U1235 VIC (4) SCP Invalid Or Missing Data For Displays
U1237 LCM (8) SCP Invalid Or Missing Data For Memory Storage
(1) Testing information is not available from manufacturer.
(2) See SEATS - POWER article for testing procedure.
(3) See MIRRORS - POWER MEMORY article for testing procedure.
(4) Check fuses No. 5 (10-amp), 26 (10-amp) and 28 (10-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
(5) Check fuses No. 9 (40-amp) and 13 (30-amp) in power distribution center at driver's side front corner of engine compartment, near battery. Check fuses No. 39 (10-amp) and 41 (20-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
(6) Check fuse No. 9 (40-amp) in power distribution center at driver's side front corner of engine compartment, near battery. Check fuses No. 1 (10-amp), 4 (10-amp), 5 (10-amp), 7 (15-amp), 13 (15-amp), 19 (10-amp), 25 (10-amp), 31 (15-amp) and 39 (10-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
(7) Check fuses No. 13 (30-amp) and 14 (30-amp) in power distribution center at driver's side front corner of engine compartment, near battery. Check fuses No. 15 (10-amp) and 39 (10-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
(8) Check fuses No. 12 (40-amp) and 16 (20-amp) in power distribution center at driver's side front corner of engine compartment, near battery. Check fuses No. 3 (10-amp), 4 (10-amp), 5 (10-amp), 19 (10-amp), 20 (10-amp) and 25 (10-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
ELECTRONIC AUTOMATIC TEMPERATURE CONTROL (EATC) MODULE DTC DEFINITIONS

DTC Source Module Description
B1249 EATC (1) Blend Door Failure
B1251 EATC (1) A/C In-Car Temperature Sensor Open
B1253 EATC (1) A/C In-Car Temperature Sensor Short To Ground
B1255 EATC (1) A/C Ambient Temperature Sensor Open Circuit
B1257 EATC (1) A/C Ambient Temperature Sensor Short To Ground
B1260 EATC (1) A/C Solar Radiation Sensor Short To Battery
B1261 EATC (1) A/C Solar Radiation Sensor Short To Ground
B1342 EATC (2) ECU Internal Short
U1073 PCM (3) SCP Invalid Or Missing Data For Engine Coolant
U1234 LCM (4) SCP Invalid Or Missing Data For Displays
U1235 VIC (5) SCP Invalid Or Missing Data For Displays
U1341 PCM (2) SCP Invalid Or Missing Data For Function Read Vehicle Speed
(1) See A/C-HEATER SYSTEM - AUTOMATIC article in AIR CONDITIONING & HEATING section.
(2) Testing information is not available from manufacturer.
(3) Proceed to step 80) under CIRCUIT TEST XB in TESTS W/CODES - EEC-V article in ENGINE PERFORMANCE section.
(4) Check fuses No. 1 (10-amp), 7 (15-amp), 26 (10-amp), 28 (10-amp) and 31 (15-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
(5) Check fuses No. 5 (10-amp), 26 (10-amp) and 28 (10-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
FRONT CONTROL UNIT (FCU) DTC DEFINITIONS

DTC Source Module Description
B1342 FCU (1) ECU Defective
U1180 DDM (2) SCP Invalid Or Missing Data For Personal Memory Features
U1181 DDM (2) SCP Invalid Or Missing Data For Personal Memory Features
U1234 LCM (3) SCP Invalid Or Missing Data For Displays
U1750 LCM (4) SCP Lack Of Acknowledgment For Audible Warnings
U1834 VIC (4) SCP Lack Of Acknowledgment For Audible Warnings
U2000 FCU (5) RCU Not Responding
U2001 FCU (5) Tape Unit Not Responding
U2002 FCU (5) Bezel Not Responding
U2003 FCU (5) CD/DJ Not Responding
U2004 FCU (6) Audio Steering Wheel Control Not Responding
U2005 FCU (6) Audio Remote Integrated Control Panel Not Responding
U2006 FCU (6) Audio Rear Control Console Not Responding
U2007 FCU (6) Audio Navigation Unit Not Responding
(1) Record all DTCs. Clear all DTCs. Repeat On-Demand Self-Test. If DTC B1342 is retrieved, replace FCU.
(2) Check fuses No. 9 (40-amp) and 13 (30-amp) in power distribution center at driver's side front corner of engine compartment, near battery. Check fuses No. 39 (10-amp) and 41 (20-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
(3) Check fuses No. 1 (10-amp), 7 (15-amp), 26 (10-amp), 28 (10-amp) and 31 (15-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
(4) Check fuses No. 5 (10-amp), 26 (10-amp) and 28 (10-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
(5) Problem exists in the stereo audio system.
(6) DTC does not apply to this application.
LIGHTING CONTROL MODULE (LCM) DTC DEFINITIONS

DTC Source Module Description
B1312 LCM (1) Headlight Input Circuit Shorted To Battery
B1317 LCM (1) Battery Voltage High
B1318 LCM (1) Battery Voltage Low
B1334 LCM (1) Deck Lid Ajar Rear Door Shorted To Ground
B1342 LCM (1) ECU Internal Failure
B1352 LCM (1) Ignition Key-In Circuit Failure
B1462 LCM (1) Seat Belt Switch Circuit Failure
B1464 LCM (1) Seat Belt Switch Short To Battery
B1483 LCM (1) Brake Pedal Input Circuit Failure
B1485 LCM (1) Brake Pedal Input Short To Battery
B1490 LCM (2) Right Front Door Handle Short To Ground
B1491 LCM (1) Ignition Cylinder Tamper Switch Circuit Failure
B1498 LCM (1) Deck Lid Punch-Out Switch Short To Ground
B1501 LCM (1) Left Turn Signal Short To Battery
B1505 LCM (1) Right Turn Signal Short To Battery
B1509 LCM (1) Flash-To-Pass Switch Short To Battery
B1514 LCM (2) Left Front Door Handle Short To Ground
B1515 LCM (1) Driver's Seat Occupied Switch Circuit Failure
B1522 LCM (1) Hood Switch Short To Ground
B1562 LCM (1) Door Lock Cylinder Short To Ground
B1566 LCM (1) Door Ajar Circuit Short To Ground
B1569 LCM (1) High Beam Switch Short To Battery
B1577 LCM (1) Park Light Switch Input Short To Battery
B1582 LCM (1) Panel Dim Increase Switch Short To Battery
B1586 LCM (1) Panel Dim Decrease Switch Short To Battery
B1590 LCM (1) Autolamp Delay Increase Short To Battery
B1594 LCM (1) Autolamp Delay Decrease Short To Battery
B1795 LCM (1) Low Beam Headlight Output Circuit Open
B1799 LCM (1) Front Turn Signal Output Circuit Open
B1803 LCM (1) Rear Turn/Stoplight Output Circuit Open
B1807 LCM (1) Taillight Output Circuit Open
U1029 ABS (3) Vehicle Speed Low Resolution Signal Not Received
U1057 PCM (4) SCP Invalid Or Missing Data For Vehicle Configuration
U1067 PCM (4) Manual Lever (PRNDL) Position Signal Missing Or Invalid
U1123 ABS (3) SCP Invalid Or Missing Data For Odometer
U1180 DDM (5) SCP Invalid Or Missing Data For Personal Memory Features
U1197 DDM (6) SCP Invalid Or Missing Data For Door Locks
U1198 DDM (6) SCP Invalid Or Missing Data For External Access Doors
U1199 DDM (7) SCP Invalid Or Missing Data For External Access Doors
U1206 DDM (7) Illuminated Entry Signal Received Invalid
U1237 DDM (8) SCP Invalid Or Missing Data For Memory Storage
U1806 DDM (7) Illuminated Entry Signal Not Acknowledged
(1) See AUTOLAMP SYSTEM article for testing procedure.
(2) This in an invalid DTC. DO NOT attempt to perform service procedures for this DTC.
(3) Check fuse No. 4 (60-amp) in power distribution center at driver's side front corner of engine compartment, near battery. Check fuses No. 5 (10-amp) and 32 (15-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
(4) Testing information is not available from manufacturer.
(5) Check fuses No. 9 (40-amp) and 13 (30-amp) in power distribution center at driver's side front corner of engine compartment, near battery. Check fuses No. 39 (10-amp) and 41 (20-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
(6) Check fuses No. 9 (40-amp) and 13 (30-amp) in power distribution center at driver's side front corner of engine compartment, near battery. Check fuses No. 4 (10-amp), 5 (10-amp), 8 (30-amp), 39 (10-amp) and 41 (20-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
(7) Check fuse No. 9 (40-amp) in power distribution center at driver's side front corner of engine compartment, near battery. Check fuses No. 1 (10-amp), 4 (10-amp), 5 (10-amp), 7 (15-amp), 13 (15-amp), 19 (10-amp), 25 (10-amp), 31 (15-amp) and 39 (10-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
(8) Check fuses No. 5 (10-amp), 26 (10-amp) and 28 (10-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
POWERTRAIN CONTROL MODULE (PCM) DTC DEFINITIONS

DTC Source Module Description
Any DTC With "P" Prefix PCM (1)
U1039 ABS (2) Vehicle Speed Low Resolution Signal Not Received
U1051 LCM (3) SCP Invalid Or Missing Data For Brakes
U1135 LCM (4) SCP Invalid Or Missing Data For Ignition Switch/Starter
U1451 LCM (5) SCP Invalid Or Missing Data For Function Read Audible Warnings
(1) For testing procedure on any DTC starting with the prefix of "P", such as P0102, see TESTS W/CODES - EEC-V article in ENGINE PERFORMANCE section.
(2) Check fuse No. 4 (60-amp) in power distribution center at driver's side front corner of engine compartment, near battery. Check fuses No. 5 (10-amp) and 32 (15-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
(3) Check fuses No. 12 (40-amp) and 16 (20-amp) in power distribution center at driver's side front corner of engine compartment, near battery. Check fuses No. 3 (10-amp), 4 (10-amp), 5 (10-amp), 19 (10-amp), 20 (10-amp) and 25 (10-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
(4) Check for damaged ignition switch. Replace if damaged. Check for defective wiring or connections for ignition switch.
(5) Check fuses No. 9 (40-amp) and 13 (30-amp) in power distribution center at driver's side front corner of engine compartment, near battery. Check fuses No. 1 (10-amp), 4 (10-amp), 5 (10-amp), 7 (15-amp), 13 (15-amp), 19 (10-amp), 25 (10-amp), 31 (15-amp) and 41 (20-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
REMOTE EMERGENCY SATELLITE CELLULAR UNIT (RESCU) MODULE DTC DEFINITIONS

DTC Source Module Description
B1216 (1) (2) RESCU Push Buttons Short To Ground
B1342 (1) (2) ECU Defective
B1874 (1) (2) Cellular Phone Not Responding
B1893 (1) (2) GPS Antenna Circuit Open
B2141 (1) (2) RESCUE Configuration Failure
(1) Source module information is not available.
(2) Problem exists in RESCU system.
VEHICLE DYNAMIC MODULE (VDM) DTC DEFINITIONS

DTC Source Module Description
B1317 VDM (1) VDM Detects High Battery
B1318 VDM (1) VDM Detects Low Battery
B1342 VDM (1) ECU Internal Short
C1722 VDM (1) Height Sensor Power Short To Battery
C1723 VDM (1) Height Sensor Power Short To Ground
C1735 VDM (1) Air Suspension Left Rear Corner Up Time Out
C1736 VDM (1) Air Suspension Left Rear Corner Down Time Out
C1737 VDM (1) Air Suspension Right Rear Corner Up Time Out
C1738 VDM (1) Air Suspension Right Rear Corner Down Time Out
C1770 VDM (1) Vent Solenoid Circuit Failure
C1773 VDM (1) Vent Solenoid Circuit Short To Ground
C1790 VDM (1) Left Rear Air Spring Solenoid Circuit Failure
C1793 VDM (1) Left Rear Air Spring Solenoid Short To Ground
C1795 VDM (1) Right Rear Air Spring Solenoid Circuit Failure
C1798 VDM (1) Right Rear Air Spring Solenoid Short To Ground
C1820 VDM (1) Compressor Thermal Time Out Exceeded
C1840 VDM (1) Disable Switch Circuit Failure
C1842 VDM (1) Disable Switch Short To Battery
C1882 VDM (1) Right Front Height Sensor Open Circuit
C1883 VDM (1) Right Front Height Sensor Short To Battery
C1884 VDM (1) Right Front Height Sensor Short To Ground
C1886 VDM (1) Right Rear Height Sensor Open Circuit
C1887 VDM (1) Right Rear Height Sensor Short To Battery
C1888 VDM (1) Right Rear Height Sensor Short To Ground
C1890 VDM (1) Left Front Height Sensor Open Circuit
C1891 VDM (1) Left Front Height Sensor Short To Battery
C1892 VDM (1) Left Front Height Sensor Short To Ground
C1894 VDM (1) Left Rear Height Sensor Open Circuit
C1895 VDM (1) Left Rear Height Sensor Short To Battery
C1896 VDM (1) Left Rear Height Sensor Short To Ground
C1898 VDM (1) VAPSII Circuit Loop Open
C1901 VDM (1) Right Rear Shock Actuator Circuit Failure
C1904 VDM (1) Right Rear Shock Actuator Short To Ground
C1905 VDM (1) Left Rear Shock Actuator Circuit Failure
C1908 VDM (1) Left Rear Shock Actuator Short To Ground
C1909 VDM (1) Right Front Shock Actuator Circuit Failure
C1912 VDM (1) Right Front Shock Actuator Short To Ground
C1913 VDM (1) Left Front Shock Actuator Circuit Failure
C1916 VDM (1) Left Front Shock Actuator Short To Ground
C1929 VDM (1) Front Compressor Relay Circuit Failure
C1931 VDM (1) Front Compressor Relay Short To Battery
U1023 PCM (2) Engine RPM Signal Not Received
U1039 ABS (3) Vehicle Speed Low Resolution Signal Not Received
U1181 DDM (4) SCP Invalid Or Missing Data For Memory Features
U1199 DDM (5) SCP Invalid Or Missing Data For External Access Doors
U1199 LCM (5) SCP Invalid Or Missing Data For External Access Doors
U1235 DDM (6) SCP Invalid Or Missing Data For Displays
U1235 LCM (6) SCP Invalid Or Missing Data For Displays
U1736 VIC (6) SCP Invalid Or Missing Data For Telltales
(1) See SUSPENSION - ELECTRONIC article in SUSPENSION section for test procedure.
(2) Testing information is not available from manufacturer.
(3) Check fuse No. 4 (60-amp) in power distribution center at driver's side front corner of engine compartment, near battery. Check fuses No. 5 (10-amp) and 32 (15-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
(4) Check fuses No. 9 (40-amp) and 13 (30-amp) in power distribution center at driver's side front corner of engine compartment, near battery. Check fuses No. 39 (10-amp) and 41 (20-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
(5) Check fuse No. 9 (40-amp) in power distribution center at driver's side front corner of engine compartment, near battery. Check fuses No. 1 (10-amp), 4 (10-amp), 5 (10-amp), 7 (15-amp), 13 (15-amp), 19 (10-amp), 25 (10-amp), 31 (15-amp) and 39 (10-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
(6) Check fuses No. 5 (10-amp), 26 (10-amp) and 28 (10-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
VIRTUAL IMAGE INSTRUMENT CLUSTER (VIC) DTC DEFINITIONS

DTC Source Module Description
B1201 VIC (1) Fuel Sender Circuit Failure
B1204 VIC (1) Fuel Sender Circuit Short To Ground
B1205 VIC (1) EIC Switch Bank No. 1 Circuit Failure
B1208 VIC (1) EIC Switch Bank No. 1 Short To Ground
B1209 VIC (1) EIC Switch Bank No. 2 Circuit Failure
B1212 VIC (1) EIC Switch Bank No. 2 Short To Ground
B1342 VIC (2) ECU Defective
U1023 PCM (3) Engine RPM Signal Not Received
U1039 ABS (4) Vehicle Speed Low Resolution Signal Not Received
U1073 PCM (5) SCP Invalid Or Missing Data For Engine Coolant
U1123 ABS (4) SCP Invalid Or Missing Data For Odometer
U1136 ABS (4) SCP Invalid Or Missing Data For Telltales
U1136 VDM (6) SCP Invalid Or Missing Data For Telltales
U1180 DDM (7) SCP Invalid Or Missing Data For Memory Features
U1181 DDM (7) SCP Invalid Or Missing Data For Memory Features
U1199 LCM (8) SCP Invalid Or Missing Data For External Access Doors
U1199 DDM (8) SCP Invalid Or Missing Data For External Access Doors
U1201 LCM (9) Brakelight/Turn/Signal/Headlight/ Tail Status Signal Missing
U1203 LCM (9) Autolamp Delay Time Signal Missing
U1234 LCM (10) SCP Invalid Or Missing Data For Displays
U1236 LCM (9) SCP Invalid Or Missing Data For Memory Storage
U1236 DSM (11) SCP Invalid Or Missing Data For Memory Storage
U1430 PCM (3) SCP Invalid Or Missing Data For Function Read Fuel System
U1750 LCM (12) SCP Lack Of Acknowledgment For Audible Warnings
(1) See INSTRUMENT PANEL - ELECTRONIC article for testing procedure.
(2) Record all DTCs. Clear all DTCs. Repeat On-Demand Self-Test. If DTC B1342 is retrieved, replace VIC.
(3) Testing information is not available from manufacturer.
(4) Check fuse No. 4 (60-amp) in power distribution center at driver's side front corner of engine compartment, near battery. Check fuses No. 5 (10-amp) and 32 (15-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
(5) Proceed to step 80) under CIRCUIT TEST XB in TESTS W/CODES - EEC-V article in ENGINE PERFORMANCE section.
(6) Check fuses No. 3 (60-amp) and 7 (30-amp) in power distribution center at driver's side front corner of engine compartment, near battery. Check fuse No. 28 (10-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
(7) Check fuses No. 9 (40-amp) and 13 (30-amp) in power distribution center at driver's side front corner of engine compartment, near battery. Check fuses No. 39 (10-amp) and 41 (20-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
(8) Check fuse No. 9 (40-amp) in power distribution center at driver's side front corner of engine compartment, near battery. Check fuses No. 1 (10-amp), 4 (10-amp), 5 (10-amp), 7 (15-amp), 13 (15-amp), 19 (10-amp), 25 (10-amp), 31 (15-amp) and 39 (10-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
(9) Check fuses No. 12 (40-amp) and 16 (20-amp) in power distribution center at driver's side front corner of engine compartment, near battery. Check fuses No. 3 (10-amp), 4 (10-amp), 5 (10-amp), 19 (10-amp), 20 (10-amp) and 25 (10-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
(10) Check fuses No. 1 (10-amp), 7 (15-amp), 26 (10-amp), 28 (10-amp) and 31 (15-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
(11) Check fuses No. 13 (30-amp) and 14 (30-amp) in power distribution center at driver's side front corner of engine compartment, near battery. Check fuses No. 15 (10-amp) and 39 (10-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
(12) Check fuses No. 5 (10-amp), 26 (10-amp) and 28 (10-amp) in fuse panel at lower edge of driver's side of instrument panel, just above emergency brake pedal. If any fuse is defective, replace fuse and recheck system operation. If fuses are okay, use scan tester and check for continuous DTCs. Perform necessary tests for any DTCs.
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