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When retrieving Chevy trouble codes with an OBD II scan tool, proceed as follows:
1. Connect scan tool to the 16-pin data link connector (DLC) located underneath the steering column. The connector may have a removable cover.
2. Turn the ignition on.
3. Follow scan tool manufacturer’s operating instructions to access the Diagnostic Trouble Codes (DTC's).
Remember, these are manufacturer specific codes only. Refer to our Generic OBD II code list for definitions on all other Chevy diagnostic trouble codes.
Manufacturer Specific Codes
P0342 Camshaft Position Sensor A Bank 1 Low Input - Related Information
P1031 HO2S Heater Current Monitor Control Circuit Sensors 1
P1032 HO2S Heater Warm Up Control Circuit Sensors 1 - Read Our Article On Oxygen Sensor Codes For Help With This Chevy Trouble Code
P1105 Secondary Vacuum Sensor Circuit
P1106 MAP Sensor Circuit Intermittent High Voltage - Read Our Article on Automotive Circuit Testing For Help With This Chevy Check Engine Light Code
P1107 MAP Sensor Circuit Intermittent Low Voltage - Read Our Article on Automotive Circuit Testing For Help With This Chevy Check Engine Light Code
P1108 BARO To MAP Sensor Circuit Comparison Too High
P1109 Secondary Port Throttle System
P1111 Intake Air Temperature (IAT) Sensor Circuit Intermittent High Voltage - Read Our Article on Automotive Circuit Testing For Help With This Chevy Trouble Code
P1112 Intake Air Temperature (IAT) Sensor Circuit Intermittent Low Voltage - Read Our Article on Automotive Circuit Testing For Help With This Chevy Trouble Code
P1113 Intake Resonance Switchover Valve Circuit
P1114 Engine Coolant Temperature (ECT) Sensor Circuit Intermittent Low Voltage - Read Our Article on Automotive Circuit Testing For Help With This Chevy Trouble Code
P1115 Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage - Related Information - Also Read Our Article on Automotive Circuit Testing For Help With This Chevy Check Engine Light Code
P1116 ECT Signal Unstable Or Intermittent - Read Our Article on Intermittent Diagnosis For Help With This Chevy Check Engine Light Code
P1117 Engine Coolant Temp Signal Out-Of-Range Low
P1118 Engine Coolant Temp Signal Out-Of Range High
P1119 ECT Signal Out Of Rage With TFT Sensor
P1120 Throttle Position (TP) Sensor 1 Circuit
P1121 TP Sensor Circuit Intermittent High Voltage - Read Our Article on Automotive Circuit Testing For Help With This Chevy Trouble Code
P1122 TP Sensor Circuit Intermittent Low Voltage - Read Our Article on Intermittent Diagnosis For Help With This Chevy Trouble Code
P1125 Accelerator Pedal Position (APP) System
P1130 HO2S Circuit Low Variance Bank 1 Sensor 1 - Read Our Article On Oxygen Sensor Codes For Help With This Chevy Check Engine Light Code
P1131 HO2S Circuit Low Variance Bank 1 Sensor 2 - Read Our Article On Oxygen Sensor Codes For Help With This Chevy Check Engine Light Code
P1132 H02S Circuit Low Variance Bank 2 Sensor 1 - Read Our Article On Oxygen Sensor Codes For Help With This Chevy Trouble Code
P1133 HO2S Insufficient Switching - Read Our Article On Oxygen Sensor Codes For Help With This Chevy Trouble Code
P1134 HO2S Transition Time Ratio - Read Our Article On Oxygen Sensor Codes For Help With This Chevy Check Engine Light Code
P1135 HO2S Lean Average Bank 1 Sensor 1 - Read Our Article On Oxygen Sensor Codes For Help With This Chevy Check Engine Light Code
P1136 HO2S Rich Average Bank 1 Sensor 1 - Read Our Article On Oxygen Sensor Codes For Help With This Chevy Trouble Code
P1137 HO2S Bank 1 Sensor 2 Lean Or Low Voltage - Read Our Article On Oxygen Sensor Codes For Help With This Chevy Trouble Code
P1138 HO2S Bank 1 Sensor 2 Rich Or High Voltage - Read Our Article On Oxygen Sensor Codes For Help With This Chevy Check Engine Light Code
P1139 HO2S Insufficient Switching Bank 1 Sensor 2 - Read Our Article On Oxygen Sensor Codes For Help With This Chevy Check Engine Light Code
P1140 HO2S Transition Time Ratio Bank 1 Sensor 2 - Read Our Article On Oxygen Sensor Codes For Help With This Chevy Check Engine Light Code
P1141 HO2S Bank 1 Sensor 2 Average Voltage Level - Read Our Article On Oxygen Sensor Codes For Help With This Chevy Check Engine Light Code
P1143 HO2S Bank 1 Sensor 3 Lean Or Low Voltage - Read Our Article On Oxygen Sensor Codes For Help With This Chevy Trouble Code
P1144 HO2S Bank 1 Sensor 3 Rich Or High Voltage - Read Our Article On Oxygen Sensor Codes For Help With This Chevy Trouble Code
P1145 HO2S Cross Counts Bank 1 Sensor 3 - Read Our Article On Oxygen Sensor Codes For Help With This Chevy Check Engine Light Code
P1153 HO2S Insufficient Switching - Read Our Article On Oxygen Sensor Codes For Help With This Chevy Check Engine Light Code
P1154 HO2S Transition Time Ratio - Read Our Article On Oxygen Sensor Codes For Help With This Chevy Trouble Code
P1155 HO2S Lean Average Bank 2 Sensor 1 - Read Our Article On Oxygen Sensor Codes For Help With This Chevy Trouble Code
P1156 HO2S Rich Average Bank 2 Sensor 1 - Read Our Article On Oxygen Sensor Codes For Help With This Chevy Check Engine Light Code
P1157 HO2S Bank 2 Sensor 2 Lean System Or Low Voltage - Read Our Article On Oxygen Sensor Codes For Help With This Chevy Check Engine Light Code
P1158 HO2S Bank 2 Sensor 2 Rich Or High Voltage - Read Our Article On Oxygen Sensor Codes For Help With This Chevy Trouble Code
P1159 HO2S Cross Counts Bank 2 Sensor 2 - Read Our Article On Oxygen Sensor Codes For Help With This Chevy Check Engine Light Code
P1161 HO2S Heater Power Stage Circuit Bank 2 Sensor 2 - Read Our Article On Oxygen Sensor Codes For Help With This Chevy Check Engine Light Code
P1163 HO2S Bank 2 Sensor 3 Lean System Or Low Voltage - Read Our Article On Oxygen Sensor Codes For Help With This Chevy Check Engine Light Code
P1164 HO2S Bank 2 Sensor 3 Rich Or High Voltage - Read Our Article On Oxygen Sensor Codes For Help With This Chevy Check Engine Light Code
P1165 HO2S Cross Counts Bank 2 Sensor 2 - Read Our Article On Oxygen Sensor Codes For Help With This Chevy Trouble Code
P1170 Bank To Bank Fuel Trim Offset
P1171 Fuel System Lean During Acceleration
P1185 Engine Oil Temperature Circuit
P1186 EOT Circuit Performance
P1187 EOT Sensor Circuit Low Voltage - Read Our Article on Automotive Circuit Testing For Help With This Chevy Trouble Code
P1188 EOT Sensor Circuit High Voltage - Read Our Article on Automotive Circuit Testing For Help With This Chevy Check Engine Light Code
P1189 Engine Oil Pressure Switch Circuit
P1190 Engine Vacuum Leak
P1191 Intake Air Duct Air Leak
P1200 Injector Control Circuit
P1201 (Alternative Fuel) Gas Mass Sensor Circuit Range/Performance
P1202 (AlternativeFuel) Gas Mass Sensor Circuit Low Frequency
P1203 (Alternative Fuel) Gas Mass Sensor Circuit High Frequency
P1211 Mass Air Flow Circuit Intermittent High - Read Our Article on Automotive Circuit Testing For Help With This Chevy Check Engine Light Code
P1212 Mass Air Flow Circuit Intermittent Low - Read Our Article on Automotive Circuit Testing For Help With This Chevy Check Engine Light Code
P1214 Injection Pump Timing Offset
P1215 Ground Fault Detection Indicated
P1216 Fuel Solenoid Response Time Too Short
P1217 Fuel Solenoid Response Time Too Long
P1218 Injection Pump Calibration Circuit
P1219 Throttle Position Sensor Refernce Voltage - Read Our Article on Automotive Circuit Testing For Help With This Chevy Check Engine Light Code
P1220 Throttle Position (TP) Sensor 2 Circuit
P1221 Throttle Position (TP) Sensor 1- 2 Correlation
P1222 Injector Control Circuit Intermittent - Read Our Article on Intermittent Diagnosis For Help With This Chevy Check Engine Light Code
P1225 Injector Circuit Cylinder 2 Intermittent - Read Our Article on Intermittent Diagnosis For Help With This Chevy Check Engine Light Code
P1228 Injector Circuit Cylinder 3 Intermittent - Read Our Article on Intermittent Diagnosis For Help With This Chevy Check Engine Light Code
P1231 Injector Circuit Cylinder 4 Intermittent - Read Our Article on Intermittent Diagnosis For Help With This Chevy Check Engine Light Code
P1234 Injector Circuit Cylinder 5 Intermittent - Read Our Article on Intermittent Diagnosis For Help With This Chevy Check Engine Light Code
P1237 Injector Circuit Cylinder 6 Intermittent - Read Our Article on Intermittent Diagnosis For Help With This Chevy Check Engine Light Code
P1240 Injector Circuit Cyllinder 7 Intermittent - Read Our Article on Intermittent Diagnosis For Help With This Chevy Check Engine Light Code
P1243 Injector Circuit Cylinder 8 Intermittent - Read Our Article on Intermittent Diagnosis For Help With This Chevy Check Engine Light Code
P1245 Intake Plenum Switchover Valve
P1250 Early Fuel Evaporation Heater Circuit
P1257 Supercharger System Overboost
P1258 Engine Coolant Overtemperature - Protection Mode Active
P1260 Last Test Failed SCC Or Theft Detected, Vehicle Immobilized
P1270 Accelerator Pedal Position Sensor A/D Converter Error
P1271 APP Sensor 1-2 Performance
P1272 Accelerator Pedal Position Sensor 2
P1273 Accelerator Pedal Position Sensor 1
P1274 Injectors Wired Incorrectly
P1275 Accelerator Pedal Position (APP) Sensor 1 Circuit - Read Our Article on Automotive Circuit Testing For Help With This Chevy Check Engine Light Code
P1276 Accelerator Pedal Position (APP) Sensor 1 Performance
P1277 Accelerator Pedal Position Sensor 1 Circuit Low Voltage - Read Our Article on Automotive Circuit Testing For Help With This Chevy Check Engine Light Code
P1278 Accelerator Pedal Position Sensor 1 Circuit High Voltage - Read Our Article on Automotive Circuit Testing For Help With This Chevy Check Engine Light Code
P1280 Accelerator Pedal Position (APP) Sensor 2 Circuit - Read Our Article on Automotive Circuit Testing For Help With This Chevy Check Engine Light Code
P1281 Accelerator Pedal Position (APP) Sensor 2 Performance
P1282 Accelerator Pedal Position Sensor 2 Circuit Low Voltage - Read Our Article on Automotive Circuit Testing For Help With This Chevy Check Engine Light Code
P1283 Accelerator Pedal Position Sensor 2 Circuit High Voltage - Read Our Article on Automotive Circuit Testing For Help With This Chevy Check Engine Light Code
P1285 Accelerator Pedal Position (APP) Sensor 3 Circuit - Read Our Article on Automotive Circuit Testing For Help With This Chevy Check Engine Light Code
P1286 Accelerator Pedal Position (APP) Sensor 3 Performance
P1287 Accelerator Pedal Position Sensor 3 Circuit Low Voltage - Read Our Article on Automotive Circuit Testing For Help With This Chevy Check Engine Light Code
P1288 Accelerator Pedal Position Sensor 3 Circuit High Voltage< - Read Our Article on Automotive Circuit Testing For Help With This Chevy Check Engine Light CodeBR>
P1300 Ignitor Circuit - Read Our Article on Automotive Circuit Testing For Help With This Chevy Check Engine Light Code
P1305 Ignition Coil 2 Primary Feedback Circuit
P1310 Ignition Coil 3 Primary Feedback Circuit
P1315 Ignition Coil 4 Primary Feedback Circuit
P1320 IC Module 4X Ref Circuit Intermittent, No Pulses
P1321 Electronic Ignition System Fault Line
P1322 EI System Or Ignition Control Missing
P1323 24X Reference Circuit Low Frequency
P1324 Crank RPM Too Low
P1335 CKP Circuit
P1336 Crankshaft Position (CKP) System Variation Not Learned
P1345 CKP/CMP Correlation - Related Information
P1346 Intake Camshaft Position (CMP) Sensor System Performance
P1350 Ignition Contol System
P1351 IC Circuit High Voltage
P1352 IC Output High/Pulse Detected When Grounded Cyl.2
P1353 IC Output High/Pulse Detected When Grounded Cyl.3
P1354 IC Output High/Pulse Detected When Grounded Cyl.4
P1355 IC OUtput High/Pulse Detected When Grounded Cyl.5
P1356 IC Output High/Pulse Detected When Grounded Cyl.6
P1357 IC Output High/Pulse Detected When Grounded Cyl.7
P1358 IC Output High/Pulse Detected When Grounded Cyl.8
P1359 Ignition Control Circuit Group A
P1360 Ignition Control Circuit Group B
P1361 IC Circuit Low Voltage
P1362 IC Cylinder 2 Not Toggling After Enable
P1363 IC Cylinder 3 Not Toggling After Enable
P1364 IC Cylinder 4 Not Toggling After Enable
P1365 IC Cylinder 5 Not Toggling After Enable
P1366 IC Cylinder 6 Not Toggling AFter Enable
P1367 IC Cylinder 7 Not Toggling After Enable
P1368 IC Cylinder 8 Not Toggling After Enable
P1370 IC Module 4X Reference Circuit, Too Many Pulses
P1371 DI Low Resolution Circuit
P1372 Crankshaft Position Sensor Circuit Performance
P1374 3X Reference Circuit
P1375 24X Reference Circuit High Voltage
P1376 Ignition Ground Circuit
P1377 IC Module CAM Pulse To 4X Reference Pulse Comparison
P1380 Misfire Detected - Rough Road Data Not Available
P1381 Misfire Detected - No Communication with Brake Control Module
P1390 Wheel Speed Sensor 1, G-Sensor Circuit
P1391 Wheel Speed Sensor 1, G-Sensor Circuit Performance
P1392 Wheel Speed Sensor 1, G-Sensor Circuit Low Voltage
P1393 Wheel Speed Sensor 1, G-Sensor Circuit High Voltage
P1394 Wheel Speed Sensor 1, G-Sensor Circuit Intermittent
P1395 Wheel Speed Sensor 2, G-Sensor Circuit
P1396 Wheel Speed Sensor 2, G-Sensor Circuit Performance
P1397 Wheel Speed Sensor 2, G-Sensor Circuit Low Voltage
P1398 Wheel Speed Sensor 2, G-Sensor Circuit High Voltage
P1399 Wheel Speed Sensor 2, G-Sensor Circuit Intermittent
P1403 Exhaust Gas Recirculation System Valve 1 - Read Our Article on EGR Valve Codes For Help With This Chevy Check Engine Light Code
P1404 Exhaust Gas Recirculation System Valve 2 - Read Our Article on EGR Valve Codes For Help With This Chevy Check Engine Light Code
P1405 Exhaust Gas Recirculation System Valve 3 - Read Our Article on EGR Valve Codes For Help With This Chevy Check Engine Light Code
P1406 EGR Valve Pintle Position Circuit - Read Our Article on EGR Valve Codes For Help With This Chevy Check Engine Light Code
P1407 EGR Air Intrusion In Exhaust Supply To EGR Valve - Read Our Article on EGR Valve Codes For Help With This Chevy Check Engine Light Code
P1408 Intake Manifold Pressure Sensor Circuit
P1409 EGR Vacuum System Leak - Read Our Article on EGR Valve Codes For Help With This Chevy Check Engine Light Code
P1410 Fuel Tank Pressure System
P1415 Secondary Air Injection (AIR) System
P1416 AIR System Bank 1
P1418 Secondary Air Injection System Relay A Control Circuit High
P1420 Intake Air Low Pressure Switch Circuit Low Voltage
P1421 Intake Air Low Pressure Switch Circuit High Voltage
P1423 Intake Air High Pressure Switch Circuit High Voltage
P1431 Fuel Level Sensor 2 Performance
P1432 Fuel Level Sensor 2 Circuit Low Voltage
P1433 Fuel Level Sensor 2 Circuit High Voltage
P1441 Evaporative Emission (EVAP) System Flow During Non-Purge
P1442 EVAP Vacuum Switch High Voltage During Ignition On