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Diagnostic Trouble Code Definitions

DIAGNOSTIC TROUBLE CODE DEFINITIONS

DTC Description Perform
B0001 Vehicle Speed Mismatch Between NAV & PCM (1)
B0016 Low Resistance In Right Front Passenger Frontal Deployment Loop (2)
B0017 Open In Right Front Passenger Frontal Deployment Loop (2)
B0018 Short To Ground Or Voltage Is Out Of Range In Right Front Passenger Frontal Deployment Loop (2)
B0022 Low Resistance In Left Front Passenger Frontal Deployment Loop (2)
B0024 Short To Ground Or Voltage Is Out Of Range In Left Front Passenger Frontal Deployment Loop (2)
B0026 Open In Left Front Passenger Frontal Deployment Loop (2)
B0028 Resistance Is Low In Right Front Passenger Frontal Deployment Loop (2)
B0029 Open In Right Front Passenger Frontal Deployment Loop (2)
B0030 Short To Ground Or Voltage Is Out Of Range In Right Front Passenger Frontal Deployment Loop (2)
B0040 Resistance Is Low In Left Front Passenger Frontal Deployment Loop (2)
B0041 Open In Left Front Passenger Frontal Deployment Loop (2)
B0045 Short To Ground Or Voltage Is Out Of Range In Left Front Side Deploy Loop (2)
B0051 Deployment Commanded (2)
B0053 Deployment Commanded With Loop Malfunctions Present (2)
B0057 Low Resistance In Right Front Passenger Pretensioner Development Loop (2)
B0058 Open In Right Front Passenger Pretensioner Development Loop (2)
B0059 Short To Ground Or Voltage Is Out Of Range In Right Front Passenger Pretensioner Development Loop (2)
B0064 Resistance Is Low In Left Front Passenger Pretensioner Development Loop (2)
B0065 Open In Left Front Passenger Pretensioner Development Loop (2)
B0066 Short To Ground Or Voltage Is Out Of Range In Left Front Passenger Pretensioner Development Loop (2)
B0073 Resistance Is Low In Supplemental Development Loop No. 1 (2)
B0074 Open In Supplemental Development Loop No. 1 (2)
B0075 Short To Ground Or Voltage Is Out Of Range In Supplemental Development Loop No. 1 (2)
B0077 Malfunction In Left Front Driver SIS (2)
B0078 Malfunction In Right Front Passenger Side Impact Sensor (2)
B0079 Incorrect Left Front Driver Side Impact Sensor Installed (2)
B0080 Discard Left Front Driver Side Impact Sensor (2)
B0081 Incorrect Right Front Passenger SIS Installed (2)
B0082 Discard Right Front Passenger SIS (2)
B0086 Resistance Low In Supplemental Development Loop No. 2 (2)
B0087 Open In Supplemental Development Loop No. 2 (2)
B0088 Short To Ground Or Voltage Is Out Of Range In Supplemental Development Loop No. 2 (2)
B0159 Outside Air Temperature Sensor Circuit (3)
B0164 Passenger Compartment Temperature Sensor No. 1 (3)
B0174 Outside Air Temperature Sensor No. 1 (3)
B0179 Outside Air Temperature Sensor No. 2 (3)
B0184 Solar Load Sensor No. 1 (3)
B0189 Solar Load Sensor No. 2 (3)
B0248 Mode Door Inoperative Error (3)
B0249 Heater/Defrost/A/C Door Inoperative Error (3)
B0268 A/I Door Inoperative Error (3)
B0269 Air Inlet Door Range Error (3)
B0408 Temperature Control No. 1 Circuit Malfunction (3)
B0409 Air Mix Door No. 1 Range Error (3)
B0419 Air Mix Door No. 2 Range Error (3)
B0423 Air Mix Door No. 2 Inoperative Error (3)
B0428 Air Mix Door No. 3 Inoperative Error (3)
B0429 Temperature Control No. 3 Rear Circuit Range/Performance (3)
B0510 RH Panel Discharge Temp Sensor Failure (3)
B0515 RH Heater Discharge Temp Sensor Failure (3)
B0520 Rear Discharge Temp Sensor Failure (3)
B1000  Loss of KDD Main Control Head (4)
B1000  ECU Malfunction (4)
B1001 SDM & DIM Configuration Information Does Not Match (4)
B1004  Malfunction In Malfunction In Keep Alive Memory (4)
B1007  EEPROM Write Error (4)
B1009  EEPROM Checksum Error (4)
B1013  ROM Checksum Error (4)
B1014  Program ROM Checksum Error (4)
B1245 Remote CD Changer Is Not Responding (5)
B1271 Radio Theft Lock Is Enabled (5)
B1327  Device Power Circuit Low (4)
B1328  Device Power Circuit High (4)
(6)
B1390  Battery Voltage Sense Failure (4)
B1396 Tilt/Telescope Position Sensor Failure (7)
B1422  Malfunction In Device Power Moding (4)
B1438 Excessive Current Draw By IPM On High Voltage Output Circuit By IPC (8)
B1513  Low Charging System Voltage (4)
(6)
B1514  High Charging System Voltage (4)
(6)
B1556  IPC EEPROM Odometer Configuration Error (4)
(8)
B1586 Open Or Out Of Range Mirror Horizontal Position Sensor (9)
B1591 Open Or Out Of Range Mirror Vertical Position Sensor (9)
B1656  EEPROM Write Error (4)
B1658  EEPROM Checksum Error (4)
B1697 Mirror Switch Input Shorted To Ground (9)
B1702 Mirror Switch Input Shorted To Ground (9)
B1707 Mirror Switch Input Shorted To Ground (9)
B1712 Mirror Switch Input Shorted To Ground (9)
B1717 Mirror Power FOLD Switch Contacts Closed For More Than 30 Seconds (9)
B1735 Malfunction In Driver Seat Front UP Switch Circuit (10)
B1740 Malfunction In Driver Seat Front DOWN Switch Circuit (10)
B1745 Malfunction In Driver Seat Rear UP Switch Circuit (10)
B1750 Driver Seat Rear DOWN Switch Circuit Malfunction (10)
B1755 Malfunction In Driver Seat FORWARD Movement Switch Circuit (10)
B1760 Malfunction In Driver Seat REARWARD Movement Switch Circuit (10)
B1815 Malfunction In Driver Seat Recline FORWARD Switch Circuit (10)
B1820 Malfunction In Driver Seat Recline REARWARD Switch Circuit (10)
B1825 Malfunction In Driver Seat Recline Sensor Circuit (10)
B1830 Malfunction In Driver Lumbar FORWARD Switch Circuit (10)
B1835 Malfunction In Driver Lumbar REARWARD Switch Circuit (10)
B1840 Malfunction In Driver Lumbar UP Switch Circuit (10)
B1845 Malfunction In Driver Lumbar DOWN Switch Circuit (10)
B1850 Malfunction In Driver Lumbar Horizontal Sensor Circuit (10)
B1860 Malfunction In Driver Lumbar Vertical Sensor Circuit (10)
B1870 Malfunction In Driver Seat Belt Tower UP Switch Circuit (10)
B1875 Malfunction In Driver Seat Belt Tower DOWN Switch Circuit (10)
B1900 Malfunction In Driver Seat Belt Tower VERTICAL Sensor Circuit (10)
B1913 Heated Seat Switch Contacts Closed For More Than 30 Seconds (10)
B1918 Heated Seat Switch Contacts Closed For More Than 30 Seconds (10)
B2355 Malfunction In Driver Seat Front Vertical Sensor (10)
B2365 Malfunction In Driver Seat Rear Vertical Sensor (10)
B2375 Malfunction In Driver Seat Horizontal Movement Sensor Circuit (10)
B2460 Navigation Antenna Selector Circuit High Current (1)
B2461 Navigation ECU Synchronous Signal Error (1)
B2462 GPS Signal Error (1)
B2463 In Navigation CD Player - No Disk (1)
B2464 Navigation CD Player - Decoding Error (1)
B2465 Navigation CD Player - Data Error (1)
B2466 Navigation VICS Memory Error (1)
B2468 Navigation Display Head Malfunction (1)
B2474 Navigation Display Head Illumination Malfunction (1)
B2475 Malfunction In Navigation Display Head Auxiliary Input (1)
B2476 Malfunction In Cellular Phone Select Service Switch (11)
B2556 Interior Light Rheostat Circuit Range (12)
B2641 Delayed Exterior Lighting Control Circuit Range (12)
B2646 Ambient Light Sensor Circuit Range (12)
B2734 Coded Key Controller Memory Failure (13)
B2757 Driver's Memory No. 1 Recall Switch Contacts Are Closed For More Than 30 Seconds (10)
B2762 Driver's Memory No. 2 Recall Switch Contacts Are Closed For More Than 30 Seconds (10)
B2767 Driver's Memory SET Switch Contacts Closed For More Than 30 Seconds (10)
B2772 Driver's memory EXIT Switch Contacts Closed For More Than 30 Seconds (10)
B2805 Malfunction In Steering Wheel Controls HVAC Switch Circuit (3)
B2810 Malfunction In Steering Wheel Controls Entertainment Circuit (7)
B2853 Malfunction In Telescopic Steering Column FORWARD Switch Circuit (7)
B2858 Malfunction In Telescopic Steering Column REARWARD Switch Circuit (7)
B2860 Telescopic Steering Position Sensor Voltage Is High (7)
B2862 Telescopic Steering Position Sensor Voltage Is Low (7)
B2873 Malfunction In Steering Tilt UP Switch Circuit (7)
B2878 Telescopic Steering Tilt DOWN Switch Contacts Closed For More Than 30 Seconds (7)
B2880 Telescopic Steering Tilt Sensor Voltage Is High (7)
B2882 Telescopic Steering Tilt Sensor Voltage Is Low (7)
B2891 Telescopic Steering Tilt Motor Current Draw Too High (7)
B2904 Malfunction In Telescopic Steering Tilt 4-Way Position Switch (7)
B2960 Ignition Key Is Not Registered For This Vehicle (13)
B3031 Key Registration Learn Mode Is Active (13)
B3055 Error Reading Ignition Key Transponder Value (13)
B3064 Driver's Door Lock Cylinder Contracts Closed For More Than 30 Seconds (13)
B3069 Driver's Door Lock Cylinder Contracts Closed For More Than 30 Seconds (14)
B3109 Remote Transmitter Battery Is Low (15)
B3142 Driver's Front Unlock Switch Contracts Closed For More Than 30 Seconds (14)
B3147 Passenger's Front Unlock Switch Contracts Closed For More Than 30 Seconds (14)
B3152 Driver's Lock Switch Contracts Closed For More Than 30 Seconds (14)
B3157 Passenger's Unlock Switch Contracts Closed For More Than 30 Seconds (14)
B3172 Window UP Switch Contacts Closed For More Than 15 Seconds (16)
B3177 Window DOWN Switch Contacts Closed For More Than 15 Seconds (16)
B3182 Window UP Switch Contacts Closed For More Than 15 Seconds (16)
B3187 Window Switch Contacts Closed For More Than 15 Seconds (16)
B3192 Window Switch Contacts Closed For More Than 15 Seconds (16)
B3197 Window Switch Contacts Closed For More Than 15 Seconds (16)
B3282 Window Switch Contacts Closed For More Than 15 Seconds (16)
B3287 Window Switch Contacts Closed For More Than 15 Seconds (16)
B3292 Window Switch Contacts Closed For More Than 15 Seconds (16)
B3377 Driver Door Switch Assembly Window Circuits Low (16)
B3382 Driver Door Switch Assembly Window Circuits Low (16)
B3387 Driver Door Switch Assembly Window Circuits Low (16)
B3392 Driver Door Switch Assembly Window Circuits Low (16)
B3397 Driver Door Switch Assembly Window Circuits Low (16)
B3452 Driver Door Switch Assembly Window Circuits Low (16)
B3457 Driver Door Switch Assembly Window Circuits Low (16)
B3462 Driver Door Switch Assembly Window Circuits Low (16)
B3467 Driver Door Switch Assembly Window Circuits Low (16)
B3472 Driver Door Switch Assembly Window Circuits Low (16)
B3477 Driver Door Switch Assembly Window Circuits Low (16)
B3482 Driver Door Switch Assembly Window Circuits Low (16)
B3517 Driver Door Switch Assembly Window Circuits Low (16)
B3522 Driver Door Switch Assembly Window Circuits Low (16)
B3527 Window Lockout Switch Contacts Closed Or Shorted To Ground For More Than 30 Seconds (16)
B3793 Memory Seat Module Current Draw Too High (16)
C0550 Electric Suspension Control Module Malfunction (17)
C0563 Calibration ROM Checksum Error (17)
C0577 Low Voltage In Left Front Strut Actuator Solenoid Circuit (17)
C0578 Excessive Voltage In Left Front Strut Actuator Solenoid Circuit (17)
C0579 Open In Left Front Strut Actuator Solenoid Circuit (17)
C0582 Low Voltage In Right Front Strut Actuator Solenoid Circuit (17)
C0583 Excessive Voltage In Right Front Strut Actuator Solenoid Circuit (17)
C0584 Open In Right Front Strut Actuator Solenoid Circuit (17)
C0587 Low Voltage In Left Rear Strut Actuator Solenoid Circuit (17)
C0588 Excessive Voltage In Left Rear Strut Actuator Solenoid Circuit (17)
C0589 Open In Left Rear Strut Actuator Solenoid Circuit (17)
C0592 Low Voltage In Right Rear Strut Actuator Solenoid Circuit (17)
C0593 Excessive Voltage In Right Rear Strut Actuator Solenoid Circuit (17)
C0594 Open In Right Rear Strut Actuator Solenoid Circuit (17)
C0615 Malfunction In Left Front Position Sensor (17)
C0620 Malfunction In Right Front Position Sensor (17)
C0625 Malfunction In Left Rear Position Sensor (17)
(18)
C0628 Level Control Position Sensor Circuit High (18)
C0630 Malfunction In Right Rear Position Sensor (17)
C0635 Low Voltage In Left Front Normal Force Signal Circuit (17)
C0638 High Voltage In Left Front Normal Force Signal Circuit (17)
C0640 Low Voltage In Right Front Normal Force Signal Circuit (17)
C0643 High Voltage In Right Front Normal Force Signal Circuit (17)
C0655 Level Control Compressor Relay Shorted To Ground (18)
C0657 Voltage Low In Level Control Compressor Relay (17)
C0658 Short To Voltage In Level Control Compressor Relay (17)
(18)
C0660 Level Control Exhaust Valve Circuit Malfunction (17)
C0662 Level Control Exhaust Valve Circuit Low (17)
C0663 Level Control Exhaust Valve Circuit High (17)
(18)
C0665 Malfunction In Chassis Pitch Signal Circuit (17)
C0690 Voltage Is Low In Electronic Suspension Damper Drive Relay (17)
C0691 Open In Electronic Suspension Damper Drive Relay (17)
C0693 Voltage Is High In Electronic Suspension Damper Drive Relay (17)
C0696 Position Sensor Overcurrent (17)
C0710 Loss Of Signal In Steering Position Circuit (17)
C0750 Loss Of Signal In Tire Pressure Monitor Circuit (17)
C0755 Loss Of Signal In Tire Pressure Monitor Circuit (17)
C0760 Loss Of Signal In Tire Pressure Monitor Circuit (17)
C0765 Loss Of Signal In Tire Pressure Monitor Circuit (17)
C0896 Device Voltage Range/Performance (17)
C1211 Malfunction In ABS Indicator Light Circuit (19)
C1214 Voltage To ABS Relay Is Less Than 8 Volts For 0.23 Seconds (19)
C1217 High Or Low Voltage To ABS Pump Motor (19)
C1218 ABS Pump Motor Command Voltage Is More Or Less Than Battery Voltage (19)
C1221 Left Front Wheel Speed Signal Is Zero When Vehicle Is Moving (19)
C1222 Right Front Wheel Speed Signal Is Zero When Vehicle Is Moving (19)
C1223 Left Rear Wheel Speed Signal Is Zero When Vehicle Is Moving (19)
C1224 Right Rear Wheel Speed Signal Is Zero When Vehicle Is Moving (19)
C1225 Excessive Variation Between Wheel Speed Sensors (19)
C1226 Excessive Variation Between Wheel Speed Sensors (19)
C1227 Excessive Variation Between Wheel Speed Sensors (19)
C1228 Excessive Variation Between Wheel Speed Sensors (19)
C1232 Short To Voltage, Ground Or Open In Wheel Speed Sensor Circuit (19)
C1233 Short To Voltage, Ground Or Open In Wheel Speed Sensor Circuit (19)
C1234 Short To Voltage, Ground Or Open In Wheel Speed Sensor Circuit (19)
C1235 Short To Voltage, Ground Or Open In Wheel Speed Sensor Circuit (19)
C1236 Voltage To ABS System Is Too Low (19)
C1237 Voltage To ABS System Is Too High (19)
C1238 Excessive Brake Rotor Temperature (19)
C1241 Short Or Open In Variable Effort Steering (20)
C1242 Open In ABS Pump Motor (19)
C1243 ABS Pump Motor Is Stalled Or Turning Slow (19)
C1245 Tire Inflation Monitor (19)
C1246 Brake Lining Wear Circuit Open (19)
C1248 ABS Brake Warning Light Was Turned On (19)
C1251 Malfunction In Constantly Road Sensing Suspension System (19)
C1252 Pulse Width Modulation Signal Between ESC & ECBM For Left Front Is Not Between 10 & 90 Percent (19)
C1253 Pulse Width Modulation Signal Between ESC & ECBM For Right Front Is Not Between 10 & 90 Percent (19)
C1254 Keep Alive Memory Checksum Error (19)
C1255 Malfunction In Electronic Brake Control Module (19)
C1256 Malfunction In Electronic Brake Control Module (19)
C1261 Malfunction In Left Front Inlet Valve Solenoid Circuit Voltage Is Not Same As Battery Voltage (19)
C1262 Malfunction In Left Front Outlet Valve Solenoid Circuit Voltage Is Not Same As Battery Voltage (19)
C1263 Malfunction In Right Front Inlet Valve Solenoid Circuit Voltage Is Not Same As Battery Voltage (19)
C1264 Malfunction In Right Front Outlet Valve Solenoid Circuit Voltage Is Not Same As Battery Voltage (19)
C1265 Malfunction In Left Rear Inlet Valve Solenoid Circuit Voltage Is Not Same As Battery Voltage (19)
C1266 Malfunction In Left Rear Outlet Valve Solenoid Circuit Voltage Is Not Same As Battery Voltage (19)
C1267 Malfunction In Right Front Inlet Valve Solenoid Circuit Voltage Is Not Same As Battery Voltage (19)
C1268 Malfunction In Right Rear Outlet Valve Solenoid Circuit Voltage Is Not Same As Battery Voltage (19)
C1274 Malfunction In Right Front Inlet Valve Solenoid Circuit Voltage Is Not Same As Battery Voltage (19)
C1276 Delivered Torque Signal Between PCM & EBCM Not Received Or Out Of Range (19)
C1277 Requested Torque Signal Between PCM & EBCM Not Received Or Out Of Range (19)
C1278 Torque Control Not Allowed By PCM (19)
C1281 Sensor Variation In Vehicle Stability Enhancement System (19)
C1282 Yaw Rate Error In Vehicle Stability Enhancement System (19)
C1283 Excessive Time Taken For Steering Center Calibration (19)
C1284 Lateral Accelerometer Bias Malfunction (19)
C1285 Lateral Accelerometer Input Voltage Is Too Low Or Too High (19)
C1286 Excessive Movement In Steering Bias Sensor After Calibration (19)
C1287 Steering Wheel Position Sensor Steering Rate Malfunction (19)
C1288 Steering Wheel Position Sensor Malfunction (19)
C1291 No Response From Brake Light Switch During Braking (19)
C1293 DTC 1291 Was Set In A Previous Ignition Cycle (19)
C1294 Brake Light Switch Contacts Closed For 2 Complete Ignition Cycles (19)
C1295 Open In Stoplight Switch Circuit (19)
C1298 Class 2 Device Does Not Communicate With Data Link Connector (19)
P0560 System Voltage (6)
P0562 System Voltage Low (6)
P0563 System Voltage High (6)
P0601 Control Module Read Only Memory (21)
P0602 Control Module Not Programed (21)
P0603 Control Module Long Term Memory Reset (21)
P0604 Control Module Random Access Memory (21)
P0615 Starter Relay Control Circuit (22)
P0621 Generator L-Terminal Circuit (6)
P0622 Generator F-Terminal Circuit (6)
P0650 Malfunction Indicator Light Control Circuit (21)
P1531 A/C Temperature Circuit Malfunction (3)
P1536 Engine Coolant Overtemperature (3)
P1540 Air Conditioning Refrigerant Overpressure (3)
P1621 Powertrain Control Module Memory Performance (21)
P1644 Delivered Torque Signal Voltage Invalid (19)
P1689 Delivered Torque Signal Voltage Invalid (19)
U1000  Loss Of Module Communications (4)
U1001  Loss Of Module Communications (4)
U1016  Loss Of Communications With PCM (4)
U1064  Loss Of Communications With DIM (4)
U1065  Loss Of Communications With IPM (4)
U1066  Loss Of Communications With RIM (4)
U1160  Loss Of Communications With DDM (4)
U1161  Loss Of Communications With PDM (4)
U1162  Loss Of Communications With LRDM (4)
U1163  Loss Of Communications With RRDM (4)
U1164  Loss Of Communications With DDS (4)
U1254  Loss Of Communications With XXX (4)
U1255  Loss Of Module Communications (4)
U1300  Class 2 Short To Ground (4)
U1301  Class 2 Short To Battery (4)
U1305  Voltage Is High Or Low Or No Valid Messages In Class 2 Serial Data Circuit (4)
U1500  On-Star(R) Status LED is Illuminated & No Communication Between VCU & VIU (4)
U2150  No Communication With NDH When Queried By NAV (4)
U2151  No Communication With NAV When Queried By NDH (4)
U2153  No Communication With VICS When Queried By NAV (4)
(1) Repair navigation system as needed
(2) Go to DIAGNOSTIC TESTS in AIR BAG RESTRAINT SYSTEMS - DEVILLE, ELDORADO & SEVILLE
(3) Go to DIAGNOSTIC TESTS in AUTOMATIC A/C-HEATER SYSTEMS - SEVILLE article in AIR CONDITIONING & HEATING.
(4) Go to DIAGNOSTIC TESTS  in this article.
(5) Repair audio system as needed
(6) Go to DIAGNOSTIC TESTS in GENERATIORS & REGULATORS - DEVILLE article under STARTING & CHARGING SYSTEMS.
(7) Go to DIAGNOSTIC TESTS in STEERING COLUMN SWITCHES - DEVILLE article.
(8) Go to DIAGNOSTIC TESTS in ANALOG & ELECTRONIC INSTRUMENT PANELS - DEVILLE article
(9) Go to DIAGNOSTIC TESTS in POWER MIRRORS - DEVILLE article
(10) Go to DIAGNOSTIC TESTS in POWER SEATS - DEVILLE article
(11) Repair cellular phone as necessary
(12) Go to DIAGNOSTIC TESTS in AUTOMATIC TWILIGHT SENTINEL - DEVILLE article.
(13) Go to DIAGNOSTIC TESTS in ANTI-THEFT SYSTEMS - DEVILLE article.
(14) Go to DIAGNOSTIC TESTS in POWER DOOR LOCKS - DEVILLE article.
(15) Go to DIAGNOSTIC TESTS in REMOTE KEYLESS ENTRY - DEVILLE article.
(16) Go to DIAGNOSTIC TESTS in POWER WINDOWS - DEVILLE article.
(17) Go to DIAGNOSTIC TESTS in CV ROAD SENSING - CADILLAC article in SUSPENSION.
(18) Go to DIAGNOSTIC TESTS in ELECTRONIC - AUTOMATIC LEVEL CONTROL - CADILLAC - WITHOUT CVRSS article in SUSPENSION.
(19) Go to appropriate ANTI-LOCK BRAKES article in BRAKES.
(20) Go to DIAGNOSTIC TESTS in Electronic - DEVILLE, ELDORADO & SEVILLE in STEERING.
(21) Go to DIAGNOSTIC TESTS in DIAGNOSTICS - 4.6L DEVILLE, ELDORADO & SEVILLE article in ENGINE PERFORMANCE.
(22) Go to DIAGNOSTIC TESTS in STARTERS - DEVILLE & SEVILLE article in STARTING & CHARGING SYSTEMS
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