For 1990-2009 cars only
Diagnostic Trouble Codes for Buick LeSabre 2000
Diagnostic Procedures
Diagnostic Trouble Codes
- DTC B0016 RF/Passenger Frontal Deployment Loop (Single Stage or Stage 1) Resistance Low
- DTC B0017 RF/Passenger Frontal Deployment Loop (Single Stage or Stage 1) Open
- DTC B0018 RF/Passenger Frontal Deployment Loop (Single Stage or Stage 1) Short to Ground/Voltage Out of Range
- DTC B0022 LF/Driver Frontal Deployment Loop (Single Stage or Stage 1) Resistance Low
- DTC B0024 LF/Driver Frontal Deployment Loop (Single Stage or Stage 1) Short to Ground/Voltage Out of Range
- DTC B0026 LF/Driver Frontal Deployment Loop (Single Stage or Stage 1) Open
- DTC B0028 RF/Passenger Side Deployment Loop Resistance Low
- DTC B0029 RF/Passenger Side Deployment Loop Open
- DTC B0030 RF/Passenger Side Deployment Loop Short to Ground/Voltage Out of Range
- DTC B0040 LF/Driver Side Deployment Loop Resistance Low
- DTC B0041 LF/Driver Side Deployment Loop Open
- DTC B0045 LF Side Deploy Loop Short to Ground/Voltage Out of Range
- DTC B0051 Deployment Commanded
- DTC B0053 Deployment Commanded with Loop Malfunctions Present
- DTC B0077 LF/Driver SIS Malfunction
- DTC B0078 RF/Passenger SIS Malfunction
- DTC B0079 Incorrect LF/Driver SIS Installed
- DTC B0080 Discard LF/Driver SIS
- DTC B0081 Incorrect RF/Passenger SIS Installed
- DTC B0082 Discard RF/Passenger SIS
- DTC B0159 Outside Air Temperature Sensor Circuit Range/Performance
- DTC B0164 Passenger Compartment Temperature Sensor #1 (Single Sensor or LH) Circuit Range/Performance
- DTC B0174 Output Air Temperature Sensor #1 (Upper; Single or LH) Circuit Range/Performance
- DTC B0179 Output Air Temperature Sensor #2 (Lower; Single or LH) Circuit Range/Performance
- DTC B0184 Solar Load Sensor #1 CKT Range
- DTC B0189 Solar Load Sensor #2 CKT Range
- DTC B0234 Air Mix Door #1 Range Error
- DTC B0237 Air Mix Door #1 Inoperative
- DTC B0249 Heater/Defrost/AC Door Range Error
- DTC B0252 Heater/Defrost/AC Door Inoperative Error
- DTC B0269 Air Inlet Door Range Error
- DTC B0272 Air Inlet Door Inoperative
- DTC B0279 Air Mix Door #2 Range Error
- DTC B0282 Air Mix Door #2 Inoperative
- DTC B0490 Passenger Temperature Control Cooler/Warmer Switch Circuit Range
- DTC B0938 Coolant Level Sensor Circuit Low
- DTC B0940 Coolant Level Sensor Open
- DTC B1000 ECU Malfunction
- DTC B1000 ECU Malfunction
- DTC B1001 Option Configuration Error
- DTC B1004 Keep Alive Memory (KAM)
- DTC B1007 EEPROM Write Error
- DTC B1009 EEPROM Checksum Error
- DTC B1010 Calibration ROM Checksum Error
- DTC B1327 Device Power Circuit Low
- DTC B1390 Device Voltage Reference Input CKT Malf
- DTC B1422 Device Power Moding Malfunction
- DTC B1513 Charging System Volts Low
- DTC B1514 Charging System Volts High
- DTC B1562 Mirror Right Control Switch Circuit Low
- DTC B1567 Mirror Left Control Switch Circuit Low
- DTC B1572 Mirror Up Control Switch Circuit Low
- DTC B1577 Mirror Down Control Switch Circuit Low
- DTC B1582 LH Mirror Horiz. Pos. Sensor Circuit Low
- DTC B1583 LH Mirror Horiz. Pos. Sensor CKT High
- DTC B1592 LH Mirror Vert. Pos. Sensor Circuit Low
- DTC B1593 LH Mirror Vert. Pos. Sensor CKT High
- DTC B1612 RH Mirror Horiz. Pos. Sensor Circuit Low
- DTC B1613 RH Mirror Horiz. Pos. Sensor CKT High
- DTC B1622 RH Mirror Vert. Pos. Sensor Circuit Low
- DTC B1623 RH Mirror Vert. Pos. Sensor CKT High
- DTC B1735 Driver Seat Front Up Switch CKT Malf
- DTC B1740 Driver Seat Front Down Switch CKT Malf
- DTC B1745 Driver Seat Rear Up Switch CKT Malf
- DTC B1750 Driver Seat Rear Down Switch CKT Malf
- DTC B1755 Driver Seat Asm Forward Switch CKT Malf
- DTC B1760 Driver Seat Asm Rearward Switch CKT Malf
- DTC B1780 Theft Lock Enabled
- DTC B1815 Driver Recline Forward Switch CKT Malf
- DTC B1820 Driver Recline Rearward Switch CKT Malf
- DTC B1825 Driver Recline Sensor CKT Malfunction
- DTC B1826 Driver Recline Sensor CKT Performance
- DTC B1830 Driver Lumbar Forward Switch CKT Malf
- DTC B1835 Driver Lumbar Rearward Switch CKT Malf
- DTC B1840 Driver Lumbar Up Switch CKT Malf
- DTC B1845 Driver Lumbar Down Switch CKT Malf
- DTC B1850 Driver Lumbar Horiz Sensor CKT Malf
- DTC B1851 LF Lumbar Horiz. Sensor CKT Performance
- DTC B1860 Driver Lumbar Vert Sensor CKT Malf
- DTC B1861 Driver Lumbar Vert Sen CKT Performance
- DTC B2355 Driver Front Vertical Sensor Malf
- DTC B2356 Driver Front Vert. Sensor Performance
- DTC B2365 Driver Rear Vertical Sensor Malf
- DTC B2366 Driver Rear Vert. Sensor Performance
- DTC B2375 Driver Seat Asm Horiz Sensor CKT Malf
- DTC B2376 Driver Seat Horiz. Sensor Performance
- DTC B2462 GPS Signal Error
- DTC B2476 Cellular Phone Select Service Switch Malfunction
- DTC B2556 Interior Lamp Rheostat Circuit Range
- DTC B2627 Pass Compartment Dimming #2 Circuit Low
- DTC B2628 Pass Compartment Dimming #2 Circuit High
- DTC B2641 Delayed Exterior Lighting Ctrl CKT Range
- DTC B2642 Delayed Exterior Lighting Ctrl CKT Low
- DTC B2643 Delayed Exterior Lighting Ctrl CKT High
- DTC B2646 Ambient Light Sensor Circuit Range
- DTC B2647 Ambient Light Sensor Circuit Low
- DTC B2648 Ambient Light Sensor Circuit High
- DTC B2721 Invalid Coded Key is Present
- DTC B2723 Unreadable Key Data
- DTC B2734 Coded Key Controller Memory Failure
- DTC B2735 Key Decoder in Assembly Learn Mode
- DTC B2757 Driver Memory 1 Select Switch CKT Low
- DTC B2762 Driver Memory 2 Select Switch CKT Low
- DTC B2772 Driver Memory Exit Switch Circuit Low
- DTC B2805 Steering Whl Controls HVAC Sw CKT Malf
- DTC B2810 Steering Whl Ctrl Entertainment CKT Malf
- DTC B2823 Trip Odometer Reset Switch Circuit Low
- DTC B2828 DIC Fuel Switch Circuit Low
- DTC B2833 DIC Gauge Switch Circuit Low
- DTC B2838 DIC Reset Switch Circuit Low
- DTC B2843 DIC English/Metric Switch Circuit Low
- DTC B2848 DIC Trip/Season Odometer Switch CKT Low
- DTC B2960 Invalid Coded Key Present
- DTC B3031 Key Decoder Device in Assem Learn Mode
- DTC B3055 Key Not Present
- DTC B3142 LF Unlock Switch Circuit Low
- DTC B3147 Passenger Unlock Switch Circuit Low
- DTC B3152 LF Lock Switch Circuit Low
- DTC B3157 Passenger Lock Switch Circuit Low
- DTC B3172 RF Window Up Switch Circuit Low
- DTC B3177 RF Window Down Switch Circuit Low
- DTC B3182 LR Window Up Switch Circuit Low
- DTC B3187 LR Window Down Switch Circuit Low
- DTC B3192 RR Window Up Switch Circuit Low
- DTC B3197 RR Window Down Switch Circuit Low
- DTC B3377 LF Window Up Switch Circuit Low
- DTC B3382 LF Window Down Switch Circuit Low
- DTC B3387 RF Window Up Switch Circuit Low
- DTC B3392 RF Window Down Switch Circuit Low
- DTC B3397 LR Window Up Switch Circuit Low
- DTC B3452 LR Window Down Switch Circuit Low
- DTC B3457 RRWindow Up Switch Circuit Low
- DTC B3462 RR Window Down Switch Circuit Low
- DTC B3467 LF Window Express Down Circuit Low
- DTC B3472 RF Window Express Down Circuit Low
- DTC B3527 Window Lockout Switch Circuit Low
- DTC C0625 Level Control Suspension Sensor Malfunction
- DTC C0628 Level Control Position Sensor Circuit High
- DTC C0660 Level Control Exhaust Valve Circuit Malfunction
- DTC C0663 Level Control Exhaust Valve Circuit High
- DTC C1211 ABS Indicator Lamp Circuit Malfunction
- DTC C1214 System Relay Contact or Coil Circuit Open
- DTC C1217 Pump Motor Shorted to Ground
- DTC C1218 Pump Motor Circuit Shorted to Voltage or Motor Ground Open
- DTC C1221 LF Wheel Speed Sensor Input Signal is 0
- DTC C1222 RF Wheel Speed Sensor Input Signal is 0
- DTC C1223 LR Wheel Speed Sensor Input Signal is 0
- DTC C1224 RR Wheel Speed Sensor Input Signal is 0
- DTC C1225 LF Excessive Wheel Speed Variation
- DTC C1226 RF Excessive Wheel Speed Variation
- DTC C1227 LR Excessive Wheel Speed Variation
- DTC C1228 RR Excessive Wheel Speed Variation
- DTC C1232 LF Wheel Speed Circuit Open or Shorted
- DTC C1233 RF Wheel Speed Circuit Open or Shorted
- DTC C1234 LR Wheel Speed Circuit Open or Shorted
- DTC C1235 RR Wheel Speed Circuit Open or Shorted
- DTC C1236 Low System Supply Voltage
- DTC C1237 High System Supply Voltage
- DTC C1238 Brake Thermal Model Exceeded
- DTC C1241 Variable Effort Steering Circuit Malfunction
- DTC C1242 Pump Motor Circuit Open
- DTC C1243 BPMV Pump Motor Stalled
- DTC C1245 Low Tire Pressure Detected
- DTC C1248 EBCM Turned the Red Brake Warning Indicator On
- DTC C1254 Abnormal Shutdown Detected
- DTC C1255 EBCM Internal Malfunction
- DTC C1256 EBCM Internal Malfunction
- DTC C1261 LF Inlet Valve Solenoid Malfunction
- DTC C1262 LF Outlet Valve Solenoid Malfunction
- DTC C1263 RF Inlet Valve Solenoid Malfunction
- DTC C1264 RF Outlet Valve Solenoid Malfunction
- DTC C1265 LR Inlet Valve Solenoid Malfunction
- DTC C1266 LR Outlet Valve Solenoid Malfunction
- DTC C1267 RR Inlet Valve Solenoid Malfunction
- DTC C1268 RR Outlet Valve Solenoid Malfunction
- DTC C1271 LF TCS Master Cylinder Isolation Valve Malfunction
- DTC C1272 LF TCS Prime Valve Malfunction
- DTC C1273 RF TCS Master Cylinder Isolation Valve Malfunction
- DTC C1274 RF TCS Prime Valve Malfunction
- DTC C1276 Delivered Torque Signal Circuit Malfunction
- DTC C1277 Requested Torque Signal Circuit Malfunction
- DTC C1278 TCS Temporarily Inhibited By PCM
- DTC C1281 VSES Sensors Uncorrelated
- DTC C1282 Yaw Rate Sensor Bias Circuit Malfunction
- DTC C1283 Excessive Time to Center Steering
- DTC C1284 Lateral Accelerometer Sensor Bias Malfunction
- DTC C1285 Lateral Accelerometer Sensor Circuit Malfunction
- DTC C1286 Steering Sensor Bias Malfunction
- DTC C1287 Steering Sensor Rate Malfunction
- DTC C1288 Steering Sensor Circuit Malfunction
- DTC C1291 Open Brake Lamp Switch Contacts During Deceleration
- DTC C1293 Code C1291 Set in Previous Ignition Cycle
- DTC C1294 Brake Lamp Switch Circuit Always Active
- DTC C1295 Brake Lamp Switch Circuit Open
- DTC C1298 PCM Class 2 Serial Data Link Malfunction
- DTC P0101 Mass Air Flow (MAF) Sensor Performance
- DTC P0102 Mass Air Flow (MAF) Sensor Circuit Low Frequency
- DTC P0103 Mass Air Flow (MAF) Sensor Circuit High Frequency
- DTC P0107 Manifold Absolute Pressure (MAP) Sensor Circuit Low Voltage
- DTC P0108 Manifold Absolute Pressure (MAP) Sensor Circuit High Voltage
- DTC P0112 Intake Air Temperature (IAT) Sensor Circuit Low Voltage
- DTC P0113 Intake Air Temperature (IAT) Sensor Circuit High Voltage
- DTC P0117 Engine Coolant Temperature (ECT) Sensor Circuit Low Voltage
- DTC P0118 Engine Coolant Temperature (ECT) Sensor Circuit High Voltage
- DTC P0121 Throttle Position (TP) Sensor Performance
- DTC P0122 Throttle Position (TP) Sensor Circuit Low Voltage
- DTC P0123 Throttle Position (TP)Sensor Circuit High Voltage
- DTC P0125 Engine Coolant Temperature (ECT) Insufficient for Closed Loop Fuel Control
- DTC P0128 Engine Coolant Temperature (ECT) Below Thermostat Regulating Temperature
- DTC P0131 HO2S Circuit Low Voltage Sensor 1
- DTC P0132 HO2S Circuit High Voltage Sensor 1
- DTC P0133 HO2S Slow Response Sensor 1
- DTC P0134 HO2S Circuit Insufficient Activity Sensor 1
- DTC P0135 HO2S Heater Performance Sensor 1
- DTC P0137 HO2S Circuit Low Voltage Sensor 2
- DTC P0138 HO2S Circuit High Voltage Sensor 2
- DTC P0140 HO2S Circuit Insufficient Activity Sensor 2
- DTC P0141 HO2S Heater Performance Sensor 2
- DTC P0171 Fuel Trim System Lean
- DTC P0172 Fuel Trim System Rich
- DTC P0201 Injector 1 Control Circuit
- DTC P0202 Injector 2 Control Circuit
- DTC P0203 Injector 3 Control Circuit
- DTC P0204 Injector 4 Control Circuit
- DTC P0205 Injector 5 Control Circuit
- DTC P0206 Injector 6 Control Circuit
- DTC P0218 Transmission Fluid Overtemperature
- DTC P0230 Fuel Pump Relay Control Circuit
- DTC P0300 Engine Misfire Detected
- DTC P0325 Knock Sensor (KS) Circuit
- DTC P0327 Knock Sensor (KS) Circuit
- DTC P0332 Knock Sensor (KS) 2 Circuit
- DTC P0336 Crankshaft Position (CKP) Sensor Circuit
- DTC P0341 Camshaft Position (CMP) Sensor Performance
- DTC P0401 Exhaust Gas Recirculation (EGR) Flow Insufficient
- DTC P0403 Exhaust Gas Recirculation (EGR) Solenoid Control Circuit
- DTC P0404 Exhaust Gas Recirculation (EGR) Open Position Performance
- DTC P0405 Exhaust Gas Recirculation (EGR) Position Sensor Circuit Low Voltage
- DTC P0410 Secondary Air Injection (AIR) System
- DTC P0412 Secondary Air Injection (AIR) Solenoid Control Circuit
- DTC P0418 Secondary Air Injection (AIR) Pump Relay Control Circuit
- DTC P0420 Catalyst System Low Efficiency
- DTC P0440 Evaporative Emission (EVAP) System
- DTC P0442 Evaporative Emission (EVAP) System Small Leak Detected
- DTC P0443 Evaporative Emission (EVAP) Purge Solenoid Control Circuit
- DTC P0446 Evaporative Emission (EVAP) Vent System Performance
- DTC P0449 Evaporative Emission (EVAP) Vent Solenoid Control Circuit
- DTC P0452 Fuel Tank Pressure Sensor Circuit Low Voltage
- DTC P0453 Fuel Tank Pressure Sensor Circuit High Voltage
- DTC P0462 Fuel Level Sensor Circuit Low Voltage
- DTC P0463 Fuel Level Sensor Circuit High Voltage
- DTC P0480 Cooling Fan Relay 1 Control Circuit
- DTC P0481Cooling Fan Relay 2 Control Circuit
- DTC P0502 Vehicle Speed Sensor (VSS) Circuit Low Input
- DTC P0503 Vehicle Speed Sensor (VSS) Circuit Intermittent
- DTC P0506 Idle Speed Low
- DTC P0507 Idle Speed High
- DTC P0522 Engine Oil Pressure (EOP) Sensor Circuit Low Voltage
- DTC P0523 Engine Oil Pressure (EOP) Sensor Circuit High Voltage
- DTC P0530 Air Conditioning (A/C) Refrigerant Pressure Sensor Circuit
- DTC P0560 System Voltage
- DTC P0601 Control Module Read Only Memory (ROM)
- DTC P0602 Control Module Not Programmed
- DTC P0620 Generator Performance
- DTC P0650 Malfunction Indicator Lamp (MIL) Control Circuit
- DTC P0654 Engine Speed Output Circuit
- DTC P0711 TFT Sensor Circuit Range/Performance
- DTC P0712 Transmission Fluid Temperature (TFT) Sensor Circuit Low Input
- DTC P0713 Transmission Fluid Temperature (TFT) Sensor Circuit High Input
- DTC P0716 Input Speed Sensor Circuit Intermittent
- DTC P0717 Input Speed Sensor Circuit Low Input
- DTC P0719 Brake Switch Circuit Low Input
- DTC P0724 Brake Switch Circuit High Input
- DTC P0730 Incorrect Gear Ratio
- DTC P0741 TCC System Stuck Off
- DTC P0742 TCC System Stuck On
- DTC P0748 Pressure Control Solenoid Circuit Electrical
- DTC P0751 1-2 Shift Solenoid Valve Performance
- DTC P0753 1-2 Shift Solenoid Circuit Electrical
- DTC P0756 2-3 Shift Solenoid Valve Performance
- DTC P0758 2-3 Shift Solenoid Circuit Electrical
- DTC P1106 Manifold Absolute Pressure (MAP) Sensor Circuit Intermittent High Voltage
- DTC P1107 Manifold Absolute Pressure (MAP) Sensor Circuit Intermittent Low Voltage
- DTC P1111 Intake Air Temperature (IAT) Sensor Circuit Intermittent High Voltage
- DTC P1112 Intake Air Temperature (IAT) Sensor Circuit Intermittent Low Voltage
- DTC P1114 Engine Coolant Temperature (ECT) Sensor Circuit Intermittent Low Voltage
- DTC P1115 Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage
- DTC P1121 Throttle Position (TP) Sensor Circuit Intermittent High Voltage
- DTC P1122 Throttle Position (TP) Sensor Circuit Intermittent Low Voltage
- DTC P1133 HO2S Insufficient Switching Sensor 1
- DTC P1134 HO2S Transition Time Ratio Sensor 1
- DTC P1336 Crankshaft Position (CKP) System Variation Not Learned
- DTC P1351 Ignition Coil Control Circuit High Voltage
- DTC P1352 Ignition Bypass Circuit High Voltage
- DTC P1361 Ignition Control (IC) Circuit Low Voltage
- DTC P1362 Ignition Bypass Circuit Low Voltage
- DTC P1374 Crankshaft Position (CKP) High to Low Resolution Frequency Correlation
- DTC P1380 Misfire Detected - Rough Road Data Not Available
- DTC P1381 Misfire Detected - No Communication with Brake Control Module
- DTC P1404 Exhaust Gas Recirculation (EGR) Closed Position Performance
- DTC P1441 Evaporative Emission (EVAP) System Flow During Non-Purge
- DTC P1536 Engine Coolant Overtemperature - Air Conditioning (A/C) Disabled
- DTC P1536 Engine Coolant Overtemperature - Air Conditioning (A/C) Disabled
- DTC P1540 Air Conditioning (A/C) Refrigerant Overpressure - Air Conditioning (A/C) Disabled
- DTC P1540 Air Conditioning (A/C) Refrigerant Overpressure - Air Conditioning (A/C) Disabled
- DTC P1546 Air Conditioning (A/C) Clutch Relay Control Circuit
- DTC P1554 Cruise Control Feedback Circuit
- DTC P1571 Traction Control Torque Request Circuit
- DTC P1575 Extended Travel Brake Switch Circuit
- DTC P1585 Cruise Control Inhibit Output Circuit
- DTC P1602 Lost Communications with Brake/Traction Control (EBTCM) System
- DTC P1604 Loss of IPC Serial Data
- DTC P1626 Theft Deterrent Fuel Enable Signal Lost
- DTC P1630 Theft Deterrent Learn Mode Active
- DTC P1631 Theft Deterrent Start Enable Signal Not Correct
- DTC P1635 5 Volt Reference Circuit
- DTC P1639 5 Volt Reference 2 Circuit
- DTC P1689 Traction Control Delivered Torque Output Circuit
- DTC P1810 TFP Valve Position Switch Circuit
- DTC P1811 Maximum Adapt and Long Shift
- DTC P1814 Torque Converter Overstressed
- DTC P1820 Internal Mode Switch Circuit A Low
- DTC P1822 Internal Mode Switch Circuit B High
- DTC P1823 Internal Mode Switch Circuit P Low
- DTC P1825 Internal Mode Switch - Invalid Range
- DTC P1860 TCC PWM Solenoid Circuit Electrical
- DTC P1887 TCC Release Switch Circuit
- DTC Table
- DTC Table
- DTC U1000 and DTC U1255 Class 2 Communication Malfunction
- DTC U1001-U1254 Loss of XXX Communications
- DTC U1161 Loss of PDM Serial Data
- DTC U1163 Loss of RRDM Serial Data
- DTC U1170 Loss of Driver Door Sw Asm Serial Data
- DTC U1300 Class 2 Data Link Low
- DTC U1301 Class 2 Data Link High
- DTC U1305 Class 2 Data Link Low or High
- DTC U1500 Inter-Device Dedicated Bus Malfunction
