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Diagnostic Trouble Codes 2003 Cadillac

DTC's

Question mark
Please see Reading Diagnostic Codes for how to use the onboad diagnostics to ask your Cadillac what it thinks.





DTC

Descriptor

DTC B0001

PCM Discrete Input Speed Signal Error

DTC B0016, B0017, or B0018

Right Front/Passenger Frontal Deployment Loop (Stage 1) Circuit

DTC B0022, B0024, or B0026

Left Front/Driver Frontal Deployment Loop (Stage 1) Circuit

DTC B0028, B0029, or B0030

Right Front/Driver Side Deployment Loop Circuit

DTC B0040, B0041, or B0045

Left Front/Driver Side Deployment Loop Circuit

DTC B0051

Deployment Commanded

DTC B0053

Deployment Commanded with Loop Malfunctions Present

DTC B0057, B0058, or B0059

Left Front/Driver Frontal Deployment Loop (Stage 2) Open

DTC B0064, B0065, or B0066

Left Front/Driver Frontal Deployment Loop (Stage 2) Open

DTC B0077, B0078, B0079, B0080, B0081, or B0082

Left Front/Driver Frontal Deployment Loop (Stage 2) Open

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 B1259

Solar Load Sensor Circuit

DTC B1271

Theft Lock Enabled

DTC B1310, B1317, B1330, B1331, B1332, or B1333

Air Temperature Sensor Circuit

DTC B1318 or B1328

Sunload Sensor Circuit

DTC B1321

A/C Low Side Temperature Sensor Fault

DTC B1324

A/C Refrigerant Overpressure

DTC B1327

Device Power Circuit Low

DTC B1328

Device Power Circuit High

DTC B1340, B1341, B1343, or B1344

Air Mix Door Movement Fault

DTC B1390

Device Voltage Reference Input CKT Malf

DTC B1396

Device Voltage Reference Output 1 Circuit Range Performance

DTC B1399

Loss of KDD Communications

DTC B1420

Seat switch input status

DTC B1513

Charging System Volts Low

DTC B1514

Charging System Volts High

DTC B1556

IPC EEPROM Odo/Configuration Error

DTC B1562, B1567, B1572, or B1577

Mirror Switch Circuit

DTC B1581, B1591, B1611, or B1621

Mirror Position Sensor Circuit

DTC B1652

Loss of Keep Alive Memory (KAM)

DTC B1656

EEPROM Write Error

DTC B1658

EEPROM Checksum Error

DTC B1717

Mirror Power Fold Control Switch Shorted Low

DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, B1820, B1830, B1835, B1840, B1845, B1940, or B1945

Power Seat Switch Circuit

DTC B1805

Ignition Switch Problem

DTC B1825, B1850, B1860, B2355, B2365, or B2375

Power Seat Position Sensor Circuit

DTC B1870

Driver Belt Tower Up Switch CKT Malf

DTC B1875

Driver Belt Tower Down Sw CKT Malf

DTC B1900

Driver Belt Tower Vert Sen CKT Malf

DTC B1982

Device Power Circuit High

DTC B1983

Device Power Circuit Low

DTC B2175

Tilt/Telescope Module Manual Switch Fail

DTC B2220-B2224, or B2226

Rear Door Lock Circuit

DTC B2419

Twilight Photocell Circuit Problem

DTC B2420

Twilight Delay Pot Failure

DTC B2422

Interior Lamp Rheostat Failure

DTC B2455

Cellular Phone Microphone Circuit

DTC B2460

Navigation Antenna Selector Circuit High Current

DTC B2462

GPS Signal Error

DTC B2463

Navigation CD Player - No Disk

DTC B2464

Navigation CD Player - Decoding Error

DTC B2465

Navigation CD Player - Data Error

DTC B2466

Navigation VICS Memory Error

DTC B2468

Navigation Display Head (NDH) Malfunction

DTC B2470

Cellular Phone Antenna Circuit

DTC B2474

Navigation Display Head (NDH) Back Lighting Malfunction

DTC B2475

Navigation Display Head (NDH) Auxiliary Input Malfunction

DTC B2476

Cellular Phone Select Service Switch Malfunction

DTC B2482

Cellular Phone Select Service Switch Range/Performance

DTC B2483 or B2484

Global Positioning System (GPS) Antenna Circuit

DTC B2510

Steering Wheel Controls HVAC Key Stuck

DTC B2511

Steering Wheel Controls Conv Key Stuck

DTC B2512

Strng Wheel Controls Illegal A/D Values

DTC B2757, B2762, B2767, or B2772

Memory Switch Circuit

DTC B2853, B2858, B2873, or B2878

Tilt/Telescoping Switch Circuit

DTC B2860

Telescope Position Sensor Range

DTC B2862

Telescope Position Sensor Low

DTC B2880

Tilt Position Sensor Range

DTC B2882

Tilt Position Sensor Low

DTC B2891

Tilt/Telescope Motor Over Current

DTC B2904

Tilt/Telescope 4-way Position Switch Circuit Malfunction

DTC B2947

Security System Sensor Power CKT Low

DTC B2948

Security System Sensor Power CKT High

DTC B2955

Security System Sensor Data CKT Malf

DTC B2960

Sec Sys Sensor Data Incorrect but Valid

DTC B3031

Key Decoder Device in Assem Learn Mode

DTC B3055

Key Not Present

DTC B3109

Keyless Entry Transmitter Low Battery

DTC B3142, B3147, B3152, or B3157

Door Lock Switch Circuit

DTC B3172, B3177, B3182, B3187, B3192, B3197, B3282, B3287, or B3292

Window Switch Circuit

DTC B3377, B3382, B3387, B3392, B3397, B3452, B3457, B3462, B3467, B3472, B3477, B3482, B3517, or B3522

Master Window Switch Circuit

DTC B3527

Window Lockout Switch Circuit Low

DTC B3793

Memory Seat Module Over Current

DTC B3832 or B3833

Window Position Sensor Circuit

DTC C0550

ECU Malfunction

DTC C0563

Calibration ROM Checksum Error

DTC C0577, C0579, C0582, C0584, C0587, C0589, C0592,or C0594

Suspension Solenoid Circuit

DTC C0578, C0583, C0588, or C0593

ESC Module Malfunction

DTC C0615, C0620, C0625 or C0630

Suspension Position Sensor Circuit

DTC C0635, C0638, C0640, C0643, C1252, or C1253

Normal Force Circuit

DTC C0657 or C0658

Level Control Compressor Circuit

DTC C0662 or C0663

Level Control Exhaust Value Circuit

DTC C0665

Chassis Pitch Signal Circuit

DTC C0690, C0691, or C0693

Damper Control Relay Circuit

DTC C0696

Position Sensor Overcurrent (5 volt supply)

DTC C0710

Steering Position Signal Malfunction

DTC C0750, C0755, C0760, or C0765

Tire Pressure Sensor Circuit

DTC C0896

Device Voltage Range/Performance

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-C1235

Wheel Speed Sensor Circuit

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 or C1243

Pump Motor Circuit

DTC C1248

EBCM Turned the Red Brake Warning Indicator On

DTC C1251

RSS Indicated Malfunction

DTC C1254

Abnormal Shutdown Detected

DTC C1255 or C1256

ECU Malfunction

DTC C1261-C1274

EBCM Internal Solenoid Circuit

DTC C1276, P1644, or P1689

Delivered Torque Circuit

DTC C1277 or P1571

Powertrain Indicated Traction Control Malfunction

DTC C1278

TCS Temporarily Inhibited By PCM

DTC C1281, C1283, or C1286

VSES Sensors Uncorrected

DTC C1282

Yaw Rate Sensor Bias Circuit Malfunction

DTC C1284 or C1285

Lateral Accelerometer Circuit

DTC C1287 or C1288

Steering Position Sensor Circuit

DTC C1291 or C1293

Brake Switch Circuit

DTC C1294

Brake Lamp Switch Circuit Always Active

DTC C1295

Brake Lamp Switch Circuit Open

DTC P0030

HO2S Heater Control Circuit Bank 1 Sensor 1

DTC P0036

HO2S Heater Control Circuit Bank 1 Sensor 2

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 P0106

Manifold Absolute Pressure (MAP) System Performance

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 P0116

Engine Coolant Temperature (ECT) Sensor Performance

DTC P0117

Engine Coolant Temperature (ECT) Sensor Circuit Low Voltage

DTC P0118

Engine Coolant Temperature (ECT) Sensor Circuit High Voltage

DTC P0121

TP Sensor Circuit Insufficient Activity

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 P0130 or P0150

HO2S Circuit

DTC P0131 or P0151

HO2S Circuit Low Voltage

DTC P0132 or P0152

HO2S Circuit High Voltage

DTC P0133 or P0153

HO2S Slow Response

DTC P0134 or P0154

HO2S Circuit Insufficient Activity

DTC P0135

HO2S Heater Performance Bank 1 Sensor 1

DTC P0137

HO2S Circuit Low Voltage Bank 1 Sensor 2

DTC P0138

HO2S Circuit High Voltage Bank 1 Sensor 2

DTC P0140

HO2S Circuit Insufficient Activity Bank 1 Sensor 2

DTC P0141

HO2S Heater Performance Bank 1 Sensor 2

DTC P0155

HO2S Heater Performance Bank 2 Sensor 1

DTC P0171 or P0174

Fuel Trim System Lean

DTC P0172 or P0175

Fuel Trim System Rich

DTC P0201-P0208

Injector Control Circuit

DTC P0218

Transmission Fluid Overtemperature

DTC P0230

Fuel Pump Relay Control Circuit

DTC P0300

Engine Misfire Detected

DTC P0325

PCM Knock Sensor Circuit

DTC P0326

Knock Sensor CKT Excessive Spark Retard

DTC P0327

Knock Sensor Circuit Low Voltage

DTC P0335

CKP Sensor A Circuit Performance

DTC P0336

Crankshaft Position (CKP) Sensor A Performance

DTC P0340

Camshaft Position (CMP) Sensor Circuit

DTC P0341

Camshaft Position (CMP) Sensor Performance

DTC P0351-P0358

Ignition Coil Control Circuit

DTC P0385

Crankshaft Position (CKP) Sensor B Circuit

DTC P0386

Crankshaft Position (CKP) Sensor B 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 Relay Control Circuit Bank 1

DTC P0418

Secondary Air Injection (AIR) Pump Relay Control Circuit Bank 1

DTC P0420

Catalyst System Low Efficiency

DTC P0440

Evaporative Emission (EVAP) System

DTC P0442

Evaporative Emission (EVAP) System Small Leak Detected

DTC P0443

EVAP Purge Solenoid Valve 1 Control CKT

DTC P0446

EVAP Vent Solenoid Valve Control System

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 P0461

Fuel Level Sensor Performance

DTC P0462

Fuel Level Sensor Circuit Low Voltage

DTC P0463

Fuel Level Sensor Circuit High Voltage

DTC P0480 or P0481

Cooling Fan Relay 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 P0512

Start Switch Circuit

DTC P0532 or P0533

Air Conditioning (A/C) Refrigerant Pressure Sensor Circuit Voltage

DTC P0560

System Voltage

DTC P0562

System Voltage Low

DTC P0563

System Voltage High

DTC P0574

Vehicle Speed Too High - Cruise Control Disabled

DTC P0601-P0607, P1600, P1621, P1627, P1680, P1681, P1683, or P2610

ECU Malfunction

DTC P0615

Starter Relay Control Circuit

DTC P0621

Generator L-Terminal Circuit

DTC P0622

Generator F-Terminal Circuit

DTC P0650

Malfunction Indicator Lamp (MIL) Control 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 P0731

Incorrect 1st Gear Ratio

DTC P0732

Incorrect 2nd Gear Ratio

DTC P0733

Incorrect 3rd Gear Ratio

DTC P0734

Incorrect 4th 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 - No First or Fourth Gear

DTC P0752

1-2 Shift Solenoid Valve Performance - No Second or Third Gear

DTC P0756

2-3 Shift Solenoid Valve Performance - No First or Second Gear

DTC P0757

2-3 Shift Solenoid Valve Performance - No Third or Fourth Gear

DTC P1031 or P1032

HO2S Heater Control Circuit Banks 1 and 2 Sensor 1

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 or P1153

HO2S Insufficient Switching

DTC P1134 or P1154

HO2S Transition Time Ratio

DTC P1189

Engine Oil Pressure (EOP) Switch Circuit

DTC P1258

Engine Coolant Overtemperature - Protection Mode Active

DTC P1336

Crankshaft Position (CKP) System Variation Not Learned

DTC P1359

Ignition Coil Group 1 Control Circuit

DTC P1360

Ignition Coil Group 2 Control Circuit

DTC P1372

Crankshaft Position (CKP) Sensor A-B 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 P1415 or P1416

Secondary Air Injection (AIR) System

DTC P1441

Evaporative Emission (EVAP) System Flow During Non-Purge

DTC P1545

Air Conditioning (A/C) Clutch Relay Control Circuit

DTC P1554

Cruise Control Feedback Circuit

DTC P1560

Transaxle Not in Drive - Cruise Control Disabled

DTC P1564

Vehicle Acceleration Too High - Cruise Control Disabled

DTC P1566

Engine RPM Too High - Cruise Control Disabled

DTC P1567

Active Banking Control Active - Cruise Control Disabled

DTC P1570

Traction Control Active - Cruise Control Disabled

DTC P1574

Stoplamp Switch Circuit

DTC P1575

Extended Travel Brake Switch Circuit

DTC P1585

Cruise Control Inhibit Output Circuit

DTC P1617

Engine Oil Level Switch Circuit

DTC P1624

Customer Snapshot Requested - Data Available

DTC P1630

Theft Deterrent Learn Mode Active

DTC P1631

Theft Deterrent Start Enable Signal Not Correct

DTC P1633

Ignition 0 Switch Circuit

DTC P1634

Ignition 1 Switch Circuit

DTC P1635

5 Volt Reference 1 Circuit

DTC P1639

5 Volt Reference 2 Circuit

DTC P1652

Powertrain Induced Chassis Pitch Output 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 P1842

1-2 Shift Solenoid Circuit Low Voltage

DTC P1843

1-2 Shift Solenoid Circuit High Voltage

DTC P1845

2-3 Shift Solenoid Circuit Low Voltage

DTC P1847

2-3 Shift Solenoid Circuit High Voltage

DTC P1860

TCC PWM Solenoid Circuit Electrical

DTC P1868

Transmission Fluid Life

DTC U1000 and U1255

Class 2 Communication Malfunction

DTC U1001-U1254

Lost Communications With XXX

DTC U1161-U1163 or U1170

Lost Communications With XXX Door Module

DTC U1300, U1301, or U1305

Class 2 Data Link Shorted

DTC U1500

Inter-device Dedicated Bus 1

DTC U1713 or U1715

Loss of Front Door Module to Window Motor High Speed Comm.

DTC U1714 or U1716

Loss of Front Door Module to Window Motor Normal Speed Comm.

DTC U2153

VICS ECU Communication Error


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