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Diagnostic Trouble Code (DTC) Definitions

ANTI-LOCK BRAKE SYSTEM MODULE DTC INDEX

DTC Description Perform Test
B1342 ECU Defective (1)
B1485 Brake Pedal Input Circuit Open (1)
B1676 Battery Voltage Out Of Range (1)
C1095 ABS Hydraulic Pump Motor Circuit Failure (1)
C1145 Right Front ABS Sensor Input Circuit Failure (1)
C1155 Left Front ABS Sensor Input Circuit Failure (1)
C1165 Right Rear ABS Sensor Input Circuit Failure (1)
C1175 Left Rear ABS Sensor Input Circuit Failure (1)
C1233 Left Front ABS Sensor Input Signal Missing (1)
C1234 Right Front ABS Sensor Input Signal Missing (1)
C1235 Right Rear ABS Sensor Input Signal Missing (1)
C1236 Left Rear ABS Sensor Input Signal Missing (1)
U1009 Invalid/Missing Data For Engine Torque (2)
U1027 Invalid/Missing Data For Engine RPM (2)
U1041 Invalid/Missing Data For Vehicle Speed (3)
U1051 Invalid/Missing Data For Brakes (4)
U1059 Invalid/Missing Data For Transmission Range (PRNDL) (2)
U1123 Invalid/Missing Data For Odometer (5)
(1) Repair Anti-Lock Brake System (ABS). See appropriate ANTI-LOCK article in BRAKES.
(2) Caused by Powertrain Control Module (PCM). Using NGS tester, perform PCM self-test and repair powertrain control as necessary. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
(3) Caused by Vehicle Dynamic Module (VDM), Driver's Door Module (DDM) and/or Lighting Control Module (LCM). Using NGS tester, perform self-test on all these modules.
(4) Caused by Lighting Control Module (LCM). Using NGS tester, perform LCM self-test.
(5) Caused by Lighting Control Module (LCM) and/or instrument cluster. Using NGS tester, perform LCM and instrument cluster self-tests.
AUDIO CONTROL MODULE DTC INDEX (1)

DTC Description Perform Test
B1342 ECU Defective (2)
B2401 Audio Tape Deck Mechanical Failure (3)
B2402 Audio CD/DJ Thermal Shutdown Fault (4)
B2403 Audio CD/DJ Internal Fault (4)
B2404 Audio Steering Wheel Switch Circuit Fault (4)
B2405 Audio Single Disc Player Thermal Shutdown (5)
B2406 Audio Single Disc CD player Internal Fault (5)
U2003 Audio CD/DJ Is Not Responding (4)
U2005 Audio Rear Integrated Control Panel Unit Not Responding (6)
U2008 Audio Phone Not Responding (7)
U2014 Audio Subwoofer Unit Not Responding (4)
(1) Audio Control Module (ACM) may also be referred to as Front Control Unit (FCU).
(2) Using NGS tester, retrieved and document all continuous DTCs. Clear DTCs. Perform Audio Control Unit (ACU) self-test. If DTC B1342 is retrieved again, replace ACU.
(3) Remove audio tape. Using NGS tester, perform Audio Control Unit (ACU) self-test. If DTC B2401 is retrieved again, repair or replace ACU.
(4) Repair audio system as necessary.
(5) Not applicable to this vehicle.
(6) This code is retrieved if Rear Integrated Control Panel Unit (RICP) is not present, disconnected or inoperative.
(7) Repair cellular phone system as necessary.
DRIVER'S DOOR MODULE DTC INDEX

DTC Description Perform Test
B1319 Driver's Door Ajar Circuit Failure (1)
B1342 ECU Defective (2)
B1396 Power Door Lock Circuit Short To Voltage (3)
B1397 Power Door Unlock Circuit Short To Voltage (3)
B1525 Keyless Entry Circuit Short To Voltage (3)
B1541 Driver's Mirror Switch Short To Voltage (4)
B1545 Power Seat Switch Short To Voltage (5)
B1549 Power Window Master Switch Short To Voltage (6)
B1554 Trunk Release Circuit Short To Ground (3)
B1562 Door Lock Cylinder Circuit Short To Ground (3)
B2425 Remote Keyless Entry Out Of Synchronization (7)
U1041 Invalid/Missing Data For Vehicle Speed (8)
U1059 Invalid/Missing Data For Transmission Range (PRNDL) (9)
U1089 Invalid/Missing Data For Suspension (10)
U1181 Invalid/Missing Data For Memory Feature (11)
U1262 SCP Bus Communication Fault (12)
(1) See AUTOLAMP SYSTEMS - CONTINENTAL article for testing procedure.
(2) Using NGS tester, retrieve and document all continuous DTCs. Clear DTCs. Perform Driver's Door Module (DDM) self-test. If DTC B1342 is retrieved again, replace DDM.
(3) See POWER DOOR LOCKS & REMOTE KEYLESS ENTRY SYSTEMS - CONTINENTAL article for testing procedure.
(4) See POWER MEMORY MIRRORS - CONTINENTAL article for testing procedures.
(5) See POWER SEATS - CONTINENTAL article for testing procedures.
(6) See POWER WINDOWS - CONTINENTAL article for testing procedures.
(7) Check keyless entry system operation. If keyless entry system operates properly, program keypad and remote transmitter. See PROGRAMMING in ACTIVE ANTI-THEFT SYSTEMS - CONTINENTAL article. If keyless entry system does not operate properly, repair keyless entry system as necessary. See POWER DOOR LOCKS & REMOTE KEYLESS ENTRY SYSTEMS - CONTINENTAL article.
(8) Caused by Anti-Lock Brake System (ABS) module. Using NGS tester, perform ABS module self-test and repair anti-lock brake system as necessary. See appropriate ANTI-LOCK article in BRAKES.
(9) Caused by Powertrain Control Module (PCM). Using NGS tester, perform PCM self-test and repair powertrain control as necessary. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
(10) Caused by Vehicle Dynamic Module (VDM). Using NGS tester, perform VDM self-test and repair electronic suspension as necessary. See appropriate ELECTRONIC article in SUSPENSION.
(11) Caused by instrument cluster. Using NGS tester, perform instrument cluster self-test and repair instrument cluster as necessary. See ANALOG INSTRUMENT PANELS - CONTINENTAL article.
(12) Service all other DTCs first. After all other DTC concerns have been repaired, perform TEST N: NO MODULE/NETWORK COMMUNICATION (BUS LINK)  under SYSTEM TESTS.
DRIVER'S SEAT MODULE DTC INDEX

DTC Description Perform Test
B1342 ECU Defective (1)
B1663 Driver's Seat Front Up/Down Circuit Failure (2)
B1664 Driver's Seat Rear Up/Down Circuit Failure (2)
B1665 Driver's Seat Forward/Backward Circuit Failure (2)
B1666 Driver's Seat Recline Circuit Failure (2)
B1667 Driver's Mirror Up/Down Circuit Failure (3)
B1668 Driver's Mirror Right/Left Circuit Failure (3)
B1669 Passenger's Mirror Up/Down Circuit Failure (3)
B1670 Passenger's Mirror Right/Left Circuit Failure (3)
B1676 Battery Voltage Out Of Range (2)
B1950 Rear Up/Down Feedback - Circuit Failure (2)
B1953 Rear Up/Down Feedback - Short to Ground (2)
B1954 Front Up/Down Feedback - Circuit Failure (2)
B1957 Front Up/Down Feedback - Short to Ground (2)
B1958 Recline Feedback - Circuit Failure (2)
B1961 Recline Feedback - Short To Ground (2)
B1962 Horizontal Feedback - Circuit Failure (2)
B1965 Horizontal Feedback - Short To Ground (2)
B2312 Passenger's Mirror Horizontal Feedback Potentiometer - Circuit Failure (3)
B2315 Passenger's Mirror Horizontal Feedback Potentiometer - Short To Ground (3)
B2316 Passenger's Mirror Vertical Feedback Potentiometer - Circuit Failure (3)
B2319 Passenger's Mirror Vertical Feedback Potentiometer - Short To Ground (3)
B2320 Driver's Mirror Horizontal Feedback Potentiometer - Circuit Failure (3)
B2323 Driver's Mirror Horizontal Feedback Potentiometer - Shirt To Ground (3)
B2324 Driver's Mirror Vertical Feedback Potentiometer - Circuit Failure (3)
B2327 Driver's Mirror Vertical Feedback Potentiometer - Short To Ground (3)
U1059 Invalid/Missing Data For Transmission Range (PRNDL) (4)
U1135 Invalid/Missing Data For Ignition Switch (5)
U1181 Invalid/Missing Data For Memory Feature (6)
U1181 Invalid/Missing Data For Memory Feature (7)
U1194 Invalid/Missing Data For Mirrors (6)
U1200 Invalid/Missing Data For Seat Motion/Control (6)
U1262 SCP Bus Communication Fault (8)
(1) Using NGS tester, retrieve and document all continuous DTCs. Clear DTCs. Perform Driver's Seat Module (DSM) self-test. If DTC B1342 is retrieved again, replace DSM.
(2) See POWER SEATS - CONTINENTAL article for testing procedures.
(3) See POWER MEMORY MIRRORS - CONTINENTAL article for testing procedures.
(4) Caused by Powertrain Control Module (PCM). Using NGS tester, perform PCM self-test and repair powertrain control as necessary. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
(5) Caused by lighting control module. See STEERING COLUMN SWITCHES - CONTINENTAL article.
(6) Caused by driver's door module. Using NGS tester, perform DDM self-test and repair power mirror system as necessary. See POWER MEMORY MIRRORS - CONTINENTAL article.
(7) Caused by instrument cluster. Using NGS tester, perform instrument cluster self-test and repair instrument cluster as necessary. See ANALOG INSTRUMENT PANELS - CONTINENTAL article.
(8) Service all other DTCs first. After all other DTC concerns have been repaired, perform TEST N: NO MODULE/NETWORK COMMUNICATION (BUS LINK)  under SYSTEM TESTS.
ELECTRONIC AUTOMATIC TEMPERATURE CONTROL MODULE DTC INDEX

DTC Description Perform Test
B1249 Blend Door Failure (1)
B1251 A/C In-Car Temperature Sensor Open Circuit (1)
B1253 A/C In-Car Temperature Sensor Circuit Short To Ground (1)
B1255 A/C Ambient Air Temperature Sensor Circuit Open (1)
B1257 A/C Ambient Air Temperature Sensor Circuit Short To Ground (1)
B1261 A/C Solar Radiation Sensor Circuit Short To Ground (1)
U1041 Invalid/Missing Data For Vehicle Speed (2)
U1073 Invalid/Missing Data For Engine Coolant (3)
U1222 Invalid/Missing Data For Interior Lights (4)
U1235 Invalid/Missing Data For Displays (5)
(1) Repair A/C system as necessary. See appropriate AUTOMATIC A/C-HEATER SYSTEMS article in AIR CONDITIONING & HEATING.
(2) Repair vehicle speed sensor circuit. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
(3) Repair engine coolant temperature sensor circuit. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
(4) Repair interior lighting as necessary. See AUTOLAMP SYSTEMS - CONTINENTAL article.
(5) Repair message center as necessary. See ANALOG INSTRUMENT PANELS - CONTINENTAL article.
INSTRUMENT CLUSTER DTC INDEX (1)

DTC Description Perform Test
B1201 Fuel Sender Circuit Failure (2)
B1204 Fuel Sender Short To Ground (2)
B1205 Instrument Cluster Switch 1 Assembly Circuit Failure (2)
B1208 Instrument Cluster Switch 1 Assembly Circuit Short To Ground (2)
B1209 Instrument Cluster Switch 2 Assembly Circuit Failure (2)
B1212 Instrument Cluster Switch 2 Assembly Circuit Short To Ground (2)
B1213 Anti-Theft Number Of Programmed Ignition Keys Is Below Minimum (3)(4)
B1232 Defective Transceiver (4)
B1317 Battery Voltage High (5)
B1318 Battery Voltage Low (5)
B1342 ECU Defective (6)
B1600 PATS Ignition Key Transponder Signal Not Received (4)
B1601 PATS Received Incorrect Key Code From Transponder (4)
B1602 PATS Received Invalid Key Code Format From Transponder (4)
B1681 PATS Transceiver Signal Not Received (4)
B2139 Security Identification Does Not Match Between Instrument Cluster & PCM (4)
B2141 NVM Configuration Failure (4)
U1027 Invalid/Missing Data For Engine RPM (7)
U1043 Invalid/Missing Data For Traction Control (8)
U1051 Invalid/Missing Data For Brakes (8)
U1053 Invalid/Missing Data For Steering (9)
U1059 Invalid/Missing Data For Transmission Range (PRNDL) (7)
U1073 Invalid/Missing Data For Engine Coolant (7)
U1089 Invalid/Missing Data For Suspension (9)
U1098 Invalid/Missing Data For Vehicle Speed Control (8)
U1123 Invalid/Missing Data For Odometer (8)
U1136 Invalid/Missing Data For Telltales (8)(10)
U1147 SCP Invalid/Missing Data For Vehicle Security (4)
U1211 Invalid/Missing Data For Restraints (10)
U1217 Invalid/Missing Data For Exterior Light Outage (10)
U1218 Invalid/Missing Data For Exterior Lights (10)
(1) Instrument cluster may also be referred to as Virtual Instrument Cluster (VIC).
(2) See ANALOG INSTRUMENT PANELS - CONTINENTAL article for testing procedures.
(3) If DTCs B1232, B1600, B1601, B1602 OR B1681 are also present, service these DTCs first then recheck codes.
(4) See PASSIVE ANTI-THEFT SYSTEMS - CONTINENTAL article for testing procedures.
(5) Repair charging system as necessary. See appropriate GENERATORS & REGULATORS article in STARTING & CHARGING SYSTEMS.
(6) Using NGS tester, retrieve and document all continuous DTCs. Clear DTCs. Perform instrument cluster self-test. If DTC B1342 is retrieved again, replace instrument cluster.
(7) Caused by Powertrain Control Module (PCM). Using NGS tester, perform PCM self-test and repair powertrain control as necessary. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
(8) Caused by Anti-Lock Brake System (ABS) module. Using NGS tester, perform ABS self-test and repair anti-lock brake system as necessary. See appropriate ANTI-LOCK article in BRAKES.
(9) Caused by Vehicle Dynamic Module (VDM). Using NGS tester, perform VDM self-test and repair electronic suspension as necessary. See appropriate ELECTRONIC article in SUSPENSION.
(10) Caused by Lighting Control Module (LCM). Using NGS tester, perform LCM self-test.
LIGHTING CONTROL MODULE DTC INDEX

DTC Description Perform Test
B1312 Headlight Input Circuit Short To Voltage (1)
B1334 Decklid Ajar Rear Door Circuit Short To Ground (2)
B1342 ECU Defective (3)
B1352 Ignition Key-In Circuit Failure (4)
B1359 Ignition RUN/ACC Circuit Failure (5)
B1462 Seat Belt Switch Circuit Failure (4)
B1464 Seat Belt Switch Circuit Short To Voltage (4)
B1483 Brake Pedal Input Circuit Failure (1)
B1495 Decklid Punch Out Sensor Circuit Failure (6)
B1498 Decklid Punch Out Sensor Short To Ground (6)
B1509 Flash-To-Pass Switch Circuit Short To Voltage (1)
B1522 Hood Switch Circuit Short To Ground (6)
B1555 Ignition RUN/START Circuit Failure (1)
B1566 Door Ajar Circuit Short To Ground (1)
B1569 Headlight High Beam Circuit Short To Voltage (1)
B1577 Parking Light Input Circuit Short To Voltage (1)
B1582 Dim Panel Increase Input Circuit Short To Ground (4)
B1586 Dim Panel Decrease Input Circuit Short To Ground (4)
B1590 Autolamp Delay Increase Circuit Short To Ground (1)
B1594 Autolamp Delay Decrease Circuit Short To Ground (1)
B1676 Battery Voltage Out Of Range (7)
B1807 Taillight Output Circuit Open (1)
U1041 Invalid/Missing Data For Vehicle Speed (8)
U1059 Invalid/Missing Data For Transmission Range (PRNDL) (9)
U1123 Invalid/Missing Data For Odometer (8)
U1146 Invalid/Missing Data For Vehicle Security (10)
U1147 Invalid/Missing Data For Vehicle Security (11)
U1181 Invalid/Missing Data For Personalization Features (12)
U1198 Invalid/Missing Data For Doors (11)
U1222 Invalid/Missing Data For Interior Lights (11)
U1262 SCP Bus Communication Fault (13)
(1) See AUTOLAMP SYSTEMS - CONTINENTAL article for testing procedures.
(2) Repair trunk lid release circuit. See REMOTE KEYLESS ENTRY SYSTEMS - CONTINENTAL article.
(3) Using NGS tester, retrieve and document continuous DTCs. Clear all DTCs. Perform Lighting Control Module (LCM) self-test. If DTC B1342 is retrieved again, replace LCM.
(4) See ANALOG INSTRUMENT PANELS - CONTINENTAL article for testing procedures.
(5) See STEERING COLUMN SWITCHES - CONTINENTAL article for testing procedures.
(6) See ACTIVE ANTI-THEFT SYSTEMS - CONTINENTAL article for testing procedures.
(7) Check charging system. See appropriate GENERATORS & REGULATORS article in STARTING & CHARGING SYSTEMS. If charging system is okay, check power and ground circuits to LCM. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
(8) Caused by Anti-Lock Brake System (ABS) module. Using NGS tester, perform ABS self-test and repair anti-lock brake system as necessary. See appropriate ANTI-LOCK article in BRAKES.
(9) Caused by Powertrain Control Module (PCM). Using NGS tester, perform PCM self-test and repair powertrain control as necessary. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
(10) Caused by instrument cluster. Using NGS tester, perform instrument cluster self-test and repair instrument cluster as necessary. See SELF-DIAGNOSTIC SYSTEM in ANALOG INSTRUMENT PANELS - CONTINENTAL article.
(11) Caused by Driver's Door Module (DDM). Using NGS tester, perform DDM self-test.
(12) Caused by instrument cluster and/or Driver's Door Module (DDM). Using NGS tester, perform DDM and instrument cluster self-test.
(13) Service all other DTCs first. After all other DTC concerns have been repaired, perform TEST N: NO MODULE/NETWORK COMMUNICATION (BUS LINK)  under SYSTEM TESTS.
NEXT GENERATION SPEED CONTROL SERVO DTC INDEX (1)

DTC Description Perform Test
B1318 Battery Voltage Low (2)
B1342 ECU Defective (3)
C1109 Throttle Position Did Not Return To Idle after Self-Test (2)
C1126 Speed Control Switch Stuck For 2 Minutes Or Longer (2)
C1127 Deactivator Switch Circuit Failure (2)
C1179 Speed Control Servo/Actuator Cable Slack Failure (2)
U1027 Invalid/Missing Data For Engine RPM (4)
U1041 Invalid/Missing Data For Vehicle Speed (5)
U1051 Invalid/Missing Data For Brakes (6)
U1059 Invalid/Missing Data For Transmission Range (PRNDL) (4)
(1) Next Generation Speed Control (NGSC) servo may also be referred to as Speed control servo/amplifier assembly.
(2) See CRUISE CONTROL SYSTEMS - CONTINENTAL article for testing procedures.
(3) Using NGS tester, retrieve and document all continuous DTCs. Clear all DTCs. Perform speed control servo self-test. If DTC B1342 is retrieved again, replace speed control servo.
(4) Caused by Powertrain Control Module (PCM). Using NGS tester, perform PCM self-test and repair powertrain control as necessary. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
(5) Caused by Anti-Lock Brake System (ABS) module. Using NGS tester, perform ABS self-test and repair anti-lock brake system as necessary. See appropriate ANTI-LOCK article in BRAKES.
(6) Caused by Lighting Control Module (LCM). Using NGS tester, perform LCM self-test.
REMOTE EMERGENCY SATELLITE CELLULAR UNIT DTC INDEX

DTC Description Perform Test
B1216 Emergency Or Information Circuit Short To Ground (1)
B1342 ECU Defective (2)
B1871 Air Bag Activation Circuit Short To Ground (1)
B1874 Cellular Phone Connected But Does Not Respond To RESCU (1)
B1893 GPS Antenna Circuit Open Or Not Connected (1)
B2102 GPS Antenna Circuit Short To Ground (1)
B2141 Response Center Phone Numbers Not Programmed Or Invalid (3)
B2477 VIN not programmed (4)
(1) Repair appropriate circuit as necessary.
(2) Using NGS tester, retrieve and document all continuous DTCs. Clear all DTCs. Perform Remote Emergency Satellite Cellular Unit (RESCU) self-test. If DTC B1342 is retrieved again, replace RESCU.
(3) Using NGS tester, retrieve and document all continuous DTCs. Clear all DTCs. Perform Remote Emergency Satellite Cellular Unit (RESCU) self-test. If DTC B2141 is retrieved again, replace RESCU.
(4) Using NGS tester, check Remote Emergency Satellite Cellular Unit (RESCU) configuration.
RESTRAINTS CONTROL MODULE DTC INDEX (1)

DTC (2) Description Perform Test
B1342 ECU Defective (3)
B1231 RCM Crash Data Memory Full (3)
B1921 RCM Bracket Ground Resistance High (3)
C1414 Incorrect Vehicle Identification Code (3)
B1887 Driver's Side Air Bag Circuit Short To Ground (3)
B1916 Driver's Side Air Bag Circuit Short To Voltage (3)
B1888 Passenger's Side Air Circuit Bag Short To Ground (3)
B1925 Passenger's Side Air Bag Circuit Short To Voltage (3)
B1932 Driver's Side Air Bag Circuit Resistance High (3)
B1933 Passenger's Side Air Bag Circuit Resistance High (3)
B1934 Driver's Side Air Bag Circuit Resistance Low (3)
B1935 Passenger's Side Air Bag Circuit Resistance Low (3)
B2444 Driver's Side Crash Sensor Internal Fault (3)
B2445 Passenger's Side Crash Sensor Internal Fault (3)
B2441 Driver's Side Crash Sensor Mounting Failure (3)
B2440 Passenger's Side Crash Sensor Mounting Failure (3)
U2017 Driver's Side Crash Sensor Communication Failure (3)
U2018 Passenger's Side Crash Sensor Communication Failure (3)
B1993 Driver's Side Air Bag Circuit Shorted To Ground (3)
B1992 Driver's Side Air Bag Circuit Shorted To Voltage (3)
B1994 Driver's Side Air Bag Circuit Resistance High (3)
B1995 Driver's Side Air Bag Circuit Resistance Low (3)
B1997 Passenger's Side Air Bag Circuit Shorted To Ground (3)
B1996 Passenger's Side Air Bag Circuit Shorted To Voltage (3)
B1998 Passenger's Side Air Bag Circuit Resistance High (3)
B1999 Passenger's Side Air Bag Circuit Resistance Low (3)
B1892 Air Bag Tone Warning Indicator Circuit Short To Ground Or Open (3)
B1891 Air Bag Tone Warning Indicator Circuit Short To Voltage (3)
B1869 Air Bag Indicator Inoperative (3)
B1870 Air Bag Indicator Short To Voltage (3)
(1) Restraint Control Module (RCM) may also be referred to as Electronic Crash Sensor (ECS) module.
(2) DTCs are listed in order of importance. Repair DTCs in order listed.
(3) Repair supplemental restraint system as necessary. See DIAGNOSIS & TESTING article in lemon-25(R) AIR BAG SERVICE & REPAIR MANUAL, DOMESTIC & IMPORTED MODELS.
VEHICLE DYNAMIC MODULE DTC INDEX

DTC Description Perform Test
B1317 Battery Voltage High (1)
B1318 Battery Voltage Low (1)
B1342 ECU Defective (1)
C1722 Air Suspension Height Sensor Power Circuit Short To Voltage (1)
C1723 Air Suspension Height Sensor Power Circuit Short To Ground (1)
C1735 Air Suspension Left Rear Corner Up Timeout (1)
C1736 Air Suspension Left Rear Corner Down Timeout (1)
C1737 Air Suspension Right Rear Corner Up Timeout (1)
C1738 Air Suspension Right Rear Corner Down Timeout (1)
C1770 Air Suspension Vent Solenoid Output Circuit Failure (1)
C1773 Air Suspension Vent Solenoid Output Circuit Short To Ground (1)
C1790 Air Suspension Left Rear Air Spring/Solenoid Output Circuit Failure (1)
C1793 Air Suspension Left Rear Air Spring/Solenoid Output Circuit Short To Ground (1)
C1795 Air Suspension Right Rear Air Spring/Solenoid Output Circuit Failure (1)
C1798 Air Suspension Right Rear Air Spring/Solenoid Output Circuit Short To Ground (1)
C1820 Air Compressor Request Exceeding Maximum Time (1)
C1840 Air Suspension Disable Switch Circuit Failure (1)
C1842 Air Suspension Disable Switch Circuit Short To Voltage (1)
C1881 Air Suspension Right Front Height Sensor Circuit Failure (1)
C1884 Air Suspension Right Front Height Sensor Circuit Short To Ground (1)
C1885 Air Suspension Right Rear Height Sensor Circuit Failure (1)
C1888 Air Suspension Right Rear Height Sensor Circuit Short To Ground (1)
C1889 Air Suspension Left Front Height Sensor Circuit Failure (1)
C1892 Air Suspension Left Front Height Sensor Circuit Short To Ground (1)
C1893 Air Suspension Left Rear Height Sensor Circuit Failure (1)
C1896 Air Suspension Left Rear Height Sensor Circuit Short To Ground (1)
C1897 Steering VAP II Circuit Loop Failure (2)
C1901 Ride Control Right Rear Shock Actuator Circuit Failure (1)
C1904 Ride Control Right Rear Shock Actuator Circuit Short To Ground (1)
C1905 Ride Control Left Rear Shock Actuator Circuit Failure (1)
C1908 Ride Control Left Rear Shock Actuator Circuit Short To Ground (1)
C1909 Ride Control Right Front Shock Actuator Circuit Failure (1)
C1912 Ride Control Right Front Shock Actuator Circuit Short To Ground (1)
C1913 Ride Control Left Front Shock Actuator Circuit Failure (1)
C1916 Ride Control Left Front Shock Actuator Circuit Short To Ground (1)
C1929 Air Suspension Compressor Relay Circuit Failure (1)
C1931 Air Suspension Compressor Relay Circuit Short To Voltage (1)
U1027 Invalid/Missing Data For Engine RPM (3)
U1041 Invalid/Missing Data For Vehicle Speed (4)
U1181 Invalid/Missing Data For Memory Features (5)
U1262 SCP Bus Communication Fault (6)
(1) Repair electronic suspension as necessary. See appropriate ELECTRONIC article in SUSPENSION.
(2) Repair electronic steering as necessary. See appropriate ELECTRONIC article in STEERING.
(3) Caused by Powertrain Control Module (PCM). Using NGS tester, perform PCM self-test and repair powertrain control as necessary. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
(4) Caused by Anti-Lock Brake System (ABS) module. Using NGS tester, perform ABS self-test and repair anti-lock brake system as necessary. See appropriate ANTI-LOCK article in BRAKES.
(5) Caused by instrument cluster. Using NGS tester, perform instrument cluster self-test and repair instrument cluster as necessary. See SELF-DIAGNOSTIC SYSTEM in ANALOG INSTRUMENT PANELS - CONTINENTAL article.
(6) Service all other DTCs first. After all other DTC concerns have been repaired, perform TEST N: NO MODULE/NETWORK COMMUNICATION (BUS LINK)  under SYSTEM TESTS.
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