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Diagnostic Trouble Code Definitions

WARNING: This page is about a different car, the 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC TROUBLE CODE DEFINITIONS

DTC Description Perform Test
B0001 Vehicle Speed Not Detected By Navigation System (1)
B0012 Instrument Panel Module Deployment Loop Resistance Low (Stage 2) (2)
B0013 Instrument Panel Module Deployment Loop Resistance High (Stage 2) (2)
B0014 Instrument Panel Module High/Low Circuits Short To Ground/Voltage (Stage 2) (2)
B0016 Instrument Panel Module Deployment Loop Resistance Low (Stage 1) (2)
B0017 Instrument Panel Module Deployment Loop Resistance High (Stage 1) (2)
B0018 Instrument Panel Module High/Low Circuits Short To Ground/Voltage (Stage 1) (2)
B0022 Steering Wheel Module Deployment Loop Resistance Low (Stage 1) (2)
B0024 Steering Wheel Module Circuit Malfunction (Stage 1) (2)
B0026 Steering Wheel Module Deployment Loop Resistance High (Stage 1) (2)
B0028 Passenger Front Side Impact Module Resistance Low (2)
B0029 Passenger Front Side Impact Module Resistance High (2)
B0030 Passenger Front Side Impact Module Circuits Short To Ground/Voltage (2)
B0040 Driver Front Side Impact Module Resistance Low (2)
B0041 Driver Front Side Impact Module Resistance High (2)
B0042 Steering Wheel Module Deployment Loop Resistance Low (Stage 2) (2)
B0043 Steering Wheel Module Circuit Malfunction (Stage 2) (2)
B0044 Steering Wheel Module Deployment Loop Resistance High (Stage 2) (2)
B0045 Driver Front Side Impact Module Circuits Short To Ground/Voltage (2)
B0051 Air Bag Deployed With No Faults Present (2)
B0053 Air Bag Deployed With Faults Present (2)
B0077 Sensing & Diagnostic Module Does Not Receive Valid Message (2)
B0078 Passenger Side Impact Sensor Does Not Send Valid Message (2)
B0079 Driver Side Impact Sensor Does Not Send Valid Message (2)
B0080 Driver Side Impact Sensor Malfunction (2)
B0081 Passenger Side Impact Sensor Malfunction (2)
B0082 Invalid Message From Passenger Side Impact Sensor (2)
B0100 Electronic Frontal Sensor (EFS) Communication Error (2)
B0101 Electronic Frontal Sensor (EFS) NOK Message Sent (2)
B0102 Electronic Frontal Sensor (EFS) ID Incorrect (2)
B0126 Upper Passenger Side Air Temperature Sensor (3)
B0131 Lower Passenger Side Air Temperature Sensor (3)
B0159 Ambient Air Temperature Sensor (3)
B0164 Inside Air Temperature Sensor (3)
B0174 Upper Driver Side Air Temperature Sensor (3)
B0179 Lower Driver Side Air Temperature Sensor (3)
B0184 Or B0189 Sunload Sensor (3)
B0234 Driver Side Air Temperature Actuator Travel Range Error (3)
B0237 Driver Side Temperature Actuator (3)
B0249 Mode Door Calibration Error (3)
B0252 Mode Door Position Signal (3)
B0269 Recirculation Door Calibration Error (3)
B0272 Recirculation Actuator (3)
B0279 Passenger Side Air Temperature Actuator Travel Range Error (3)
B0282 Passenger Side Temperature Actuator (3)
B0490 Driver Door Module (3)
B1000 Control Module Internal Fault (Except IPM) DTC B1000 
B1000 Instrument Panel Module (IPM) Internal Fault (3)
B1001 IPM Not Calibrated To Vehicle B1001 
B1001 Restraints ID Does Not Match ID In Dash Integration Module (2)
B1004 Keep Alive Memory DTC B1004 
B1007 EEPROM Write Error DTC B1007 
B1009 EEPROM Checksum Error DTC B1009 
B1010 ROM Checksum Error DTC B1010 
B1025, B1035, B1045 or B1055 Radio Speaker Output Short To Ground/Voltage DTC B1025, B1035, B1045 or B1055 
B1271 Or B1780 Radio Theft Lock Activated (4)
B1327 Device Power Circuit Low (5)
B1390 Device Voltage Reference Input Circuit Malfunction DTC B1390 
B1420 Memory Seat Module (MSM) Supply Voltage Low (6)
B1422 Dash Integration Module (DIM) IGNITION Input Open Or Short To Ground/Voltage DTC B1422 
B1513 Dash Integration Module Voltage Low (5)
B1514 Dash Integration Module Voltage High (5)
B1562, B1567, B1572 Or B1577 Driver Door Switch Assembly Failure (7)
B1582, B1583, B1592, B1593, B1612, B1613, B1622 Or B1623 Mirror Position Sensor Voltage Out Of Range (7)
B1735, B1740, B1745, B1750, B1755, B1760, B1815, B1820, B1830, B1835, B1840, B1845, B1940 Or B1945 Power Seat Switch Failure (6)
B1825, B1850, B1860, B2355, B2365 Or B2375 Seat Position Sensor Voltage Out Of Range (6)
B1826, B1851, B1861, B2356, B2366 Or B2376 Seat Position Sensor Malfunction (6)
B2455 Open VCIM Drain Circuit/Microphone Signal Circuit Short To Voltage (8)
B2462 Global Positioning Satellite Antenna Failure (1)
B2470 Cellular Antenna Not Detected (8)
B2476 Keypad Low Reference Circuit Voltage Malfunction (8)
B2482 OnStar® Keypad Button Stuck (1)
B2483 Or B2484 GPS Navigation Antenna Not Detected (1)
B2556 IP Dimmer Switch Signal Voltage Out Of Range (9)
B2641 Twilight Sentinel Delay Signal Voltage Low (10)
B2646 Sun Load Sensor Signal Voltage Out Of Range (10)
B2734 Memory Checksum Write Error (11)
B2757, B2762, B2767 Or B2772 Memory Recall Switch Malfunction (6)
B2805 Steering Wheel Controls (12)
B2810 Steering Wheel Controls Stuck (12)
B2823 TRIP RESET Switch Signal Circuit Voltage Low (9)
B2838 DIC RESET Switch Signal Circuit Voltage Low (9)
B2947 Exciter Module Supply Voltage Low (11)
B2948 Exciter Module Supply Voltage Remains Active (11)
B2955 Exciter Module Signal Voltage Malfunction (11)
B2960 Ignition Key Code Mismatch (11)
B3031 Learned Coded Key Setting On (11)
B3055 Ignition Key Value Malfunction (11)
B3109 Remote Transmitter Battery Low (13)
B3142, B3147, B3152 Or B3157 Door Lock Switch Signal Circuit Malfunction (13)
B3172, B3177, B3182, B3187, B3192, B3197, B3282, B3287 Or B3292 Passenger Door Module Message Failure (14)
B3377, B3382, B3387, B3392, B3397, B3452, B3457, B3462, B3467, B3472, B3477, B3482, B3517 Or B3522 Driver Door Switch Malfunction (14)
B3527 Power Window Switch Input Malfunction (14)
B3564 DIC SELECT RIGHT Switch Signal Circuit Voltage Low (9)
B3569 DIC SELECT DOWN Switch Signal Circuit Voltage Low (9)
B3574 TRIP A/B Switch Signal Circuit Voltage Low (9)
B3752 DIC ON/OFF Switch Signal Circuit Voltage Low (9)
B3793 Memory Seat Module Voltage Malfunction (6)
B3832 Or B3833 Power Window Lock-Out Malfunction (14)
C0625 ALC Position Sensor Signal Voltage Out Of Range (15)
C0628 ALC Position Sensor Signal Or Reference Circuit Short To Voltage (15)
C0660 ALC Exhaust Solenoid Control Circuit Open/Short To Ground (15)
C0663 ALC Exhaust Solenoid Control Circuit Short To Voltage (15)
C0665 Lift/Dive Circuit Malfunction (15)
C1211 Anti-Lock Brake System Indicator Voltage High (16)
C1214 System Voltage Low (16)
C1217 Pump Motor Voltage Malfunction (16)
C1218 System Voltage High (16)
C1221-C1235 Wheel Speed Sensor Malfunction (16)
C1236 Ignition Voltage Low (16)
C1237 Electronic Brake Control Module Detects High System Voltage (16)
C1238 Brake Rotor Temperature High (16)
C1241 Magnasteer Actuator Circuit Open Or Short To Ground/Voltage (15)
C1242 Or C1243 Pump Motor Control Malfunction (16)
C1245 Low Tire Pressure DTC C1245 
C1248 Dynamic Rear Proportioning Malfunction (16)
C1254 Loss Of Keep Alive Memory (16)
C1255 Or C1256 Electronic Brake Control Module Malfunction (16)
C1261-C1274 Ignition Voltage High (16)
C1276, P1644 Or P1689 Delivered Torque Signal Malfunction (16)
C1277 Or P1571 Requested Torque Signal Malfunction (16)
C1278 Electronic Brake Control Module Disabled Traction Control System (16)
C1281, C1283 Or C1286 Yaw Rate Input Malfunction (16)
C1282 Yaw Rate Input Error (16)
C1284 Or C1285 Lateral Accelerometer Sensor Malfunction (16)
C1287 Or C1288 Steering Wheel Position Sensor Out Of Phase (16)
C1291 Or C1293 Stoplight Switch Malfunction (16)
C1294 Stoplight Switch Circuit Short To Voltage (16)
C1295 Stoplight Switch Circuit Inactive (16)
PXXXX Powertrain Control Module Malfunction (17)
U1000 & U1255 Class 2 Communication Malfunction DTC U1000 & U1255 
U1001-U1254 Loss Of XXX Communication DTC U1001-U1254 
U1161-U1163 Or U1170 Driver Door Module Communication Malfunction DTC U1161-U1163 OR U1170 
U1300, U1301 & U1305 Class 2 Short To Ground/Voltage Or Loss of Class 2 Communication DTC U1300, U1301 & U1305 
U1500 OnStar® Generation 2.6 Serial Data Circuit Failure DTC U1500 
U1500 OnStar® Generation F1 Serial Data Circuit Failure DTC U1500 
(1) Repair navigation system as necessary. See WIRING DIAGRAMS .
(2) For information on air bag DIAGNOSIS & TESTING or DISPOSAL PROCEDURES, see AIR BAG RESTRAINT SYSTEMS article in RESTRAINTS.
(3) See AUTOMATIC A/C-HEATER SYSTEMS article in AIR CONDITIONING & HEATING.
(4) Use scan tool to clear radio theft information. If DTC resets, replace radio.
(5) See GENERATORS & REGULATORS article in ELECTRICAL.
(6) See POWER SEATS - AURORA article.
(7) See POWER MIRRORS - AURORA article.
(8) Repair cellular phone as necessary. See WIRING DIAGRAMS .
(9) See INSTRUMENT PANELS - AURORA article.
(10) See HEADLIGHTS - AUTOMATIC TWILIGHT SENTINEL - AURORA article.
(11) See ANTI-THEFT SYSTEMS - AURORA article.
(12) See STEERING COLUMN SWITCHES - AURORA article.
(13) See POWER DOOR LOCKS & REMOTE KEYLESS ENTRY SYSTEMS - AURORA article.
(14) See POWER WINDOWS - AURORA article.
(15) See appropriate ELECTRONIC article in SUSPENSION.
(16) See appropriate ANTI-LOCK article in BRAKES.
(17) See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
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