OBD-II · CODE FAMILY
Codes P12xx — what they mean
P12xx is a family of 100 manufacturer-specific OBD2 codes covering powertrain and electrical faults. Each P12xx code below links to its own page with causes, diagnosis and the parts to fix it.
100 codesPowertrain systems
FAMILY
RangeP1200–P1299
Codes100
TROUBLEATLAS APP
01All codes in this family
One rich, indexed page — not thousands of empty ones. Each code links to its own page.
| Code | Meaning — click to open the code page | System | Severity |
|---|---|---|---|
| P1200 | Injector Control Circuit → /auto/codes/p1200/ Injector Control Circuit | Powertrain | Medium |
| P1201 | Cylinder 1 Misfire → /auto/codes/p1201/ Cylinder 1 Misfire | Powertrain | Medium |
| P1202 | Cylinder 2 Misfire → /auto/codes/p1202/ Cylinder 2 Misfire | Powertrain | Medium |
| P1203 | Cylinder 3 Misfire → /auto/codes/p1203/ Cylinder 3 Misfire | Powertrain | Medium |
| P1204 | Cylinder 4 Misfire → /auto/codes/p1204/ Cylinder 4 Misfire | Powertrain | Medium |
| P1205 | Cylinder 5 Misfire → /auto/codes/p1205/ Cylinder 5 Misfire | Powertrain | Medium |
| P1206 | Cylinder 6 Misfire → /auto/codes/p1206/ Cylinder 6 Misfire | Powertrain | Medium |
| P1207 | Cylinder 7 Injector Circuit Open/Shorted → /auto/codes/p1207/ Cylinder 7 Injector Circuit Open/Shorted | Powertrain | Medium |
| P1208 | Cylinder 8 Injector Circuit Open/Shorted → /auto/codes/p1208/ Cylinder 8 Injector Circuit Open/Shorted | Powertrain | Medium |
| P1209 | Injector Control Pressure System Fault → /auto/codes/p1209/ Injector Control Pressure System Fault | Powertrain | Medium |
| P1210 | Injector Control Pressure Above Expected Level → /auto/codes/p1210/ Injector Control Pressure Above Expected Level | Powertrain | Medium |
| P1211 | Mass Air Flow Circuit Intermittent High → /auto/codes/p1211/ Mass Air Flow Circuit Intermittent High | Powertrain | Medium |
| P1212 | Mass Air Flow Circuit Intermittent Low → /auto/codes/p1212/ Mass Air Flow Circuit Intermittent Low | Powertrain | Medium |
| P1213 | Start Injector Circuit Malfunction → /auto/codes/p1213/ Start Injector Circuit Malfunction | Powertrain | Medium |
| P1214 | Injection Pump Timing Offset → /auto/codes/p1214/ Injection Pump Timing Offset | Powertrain | Medium |
| P1215 | Ground Fault Detection Indicated → /auto/codes/p1215/ Ground Fault Detection Indicated | Powertrain | Medium |
| P1216 | Fuel Solenoid Response Time Too Short → /auto/codes/p1216/ Fuel Solenoid Response Time Too Short | Powertrain | Medium |
| P1217 | Fuel Solenoid Response Time Too Long → /auto/codes/p1217/ Fuel Solenoid Response Time Too Long | Powertrain | Medium |
| P1218 | Injection Pump Calibration Circuit → /auto/codes/p1218/ Injection Pump Calibration Circuit | Powertrain | Medium |
| P1219 | Throttle Position Sensor Refernce Voltage → /auto/codes/p1219/ Throttle Position Sensor Refernce Voltage | Powertrain | Medium |
| P1220 | Throttle Position (TP) Sensor 2 Circuit → /auto/codes/p1220/ Throttle Position (TP) Sensor 2 Circuit | Powertrain | Medium |
| P1221 | Pedal Position Sensor 2 Range Performance Problem → /auto/codes/p1221/ Pedal Position Sensor 2 Range Performance Problem | Powertrain | Medium |
| P1222 | Pedal Position Sensor 2 Low Input → /auto/codes/p1222/ Pedal Position Sensor 2 Low Input | Powertrain | Medium |
| P1223 | Pedal Position Sensor 2 High Input → /auto/codes/p1223/ Pedal Position Sensor 2 High Input | Powertrain | Medium |
| P1224 | Throttle Position Sensor B Out of Self-Test Range → /auto/codes/p1224/ Throttle Position Sensor B Out of Self-Test Range | Powertrain | Medium |
| P1225 | Injector Circuit Cylinder 2 Intermittent → /auto/codes/p1225/ Injector Circuit Cylinder 2 Intermittent | Powertrain | Medium |
| P1226 | Mechanical Guard Circuit Range Performance → /auto/codes/p1226/ Mechanical Guard Circuit Range Performance | Powertrain | Medium |
| P1227 | Wastegate Failed Closed Over Pressure → /auto/codes/p1227/ Wastegate Failed Closed Over Pressure | Powertrain | Medium |
| P1228 | Injector Circuit Cylinder 3 Intermittent → /auto/codes/p1228/ Injector Circuit Cylinder 3 Intermittent | Powertrain | Medium |
| P1229 | Intercooler Pump Driver Fault → /auto/codes/p1229/ Intercooler Pump Driver Fault | Powertrain | Medium |
| P1230 | Open Power to Fuel Pump Circuit → /auto/codes/p1230/ Open Power to Fuel Pump Circuit | Powertrain | Medium |
| P1231 | Injector Circuit Cylinder 4 Intermittent → /auto/codes/p1231/ Injector Circuit Cylinder 4 Intermittent | Powertrain | Medium |
| P1232 | Low Speed Fuel Pump Primary Circuit Failure → /auto/codes/p1232/ Low Speed Fuel Pump Primary Circuit Failure | Powertrain | Medium |
| P1233 | Fuel Pump Driver Module Off-Line → /auto/codes/p1233/ Fuel Pump Driver Module Off-Line | Powertrain | Medium |
| P1234 | Injector Circuit Cylinder 5 Intermittent → /auto/codes/p1234/ Injector Circuit Cylinder 5 Intermittent | Powertrain | Medium |
| P1235 | Fuel Pump Control Out of Range → /auto/codes/p1235/ Fuel Pump Control Out of Range | Powertrain | Medium |
| P1236 | Fuel Pump Control Out of Range → /auto/codes/p1236/ Fuel Pump Control Out of Range | Powertrain | Medium |
| P1237 | Injector Circuit Cylinder 6 Intermittent → /auto/codes/p1237/ Injector Circuit Cylinder 6 Intermittent | Powertrain | Medium |
| P1238 | Fuel Pump Secondary Circuit Fault → /auto/codes/p1238/ Fuel Pump Secondary Circuit Fault | Powertrain | Medium |
| P1239 | Speed Fuel Pump Positive Feed Fault → /auto/codes/p1239/ Speed Fuel Pump Positive Feed Fault | Powertrain | Medium |
| P1240 | Injector Circuit Cyllinder 7 Intermittent → /auto/codes/p1240/ Injector Circuit Cyllinder 7 Intermittent | Powertrain | Medium |
| P1241 | Throttle Vent Control Motor Circuit 1 Malfunction → /auto/codes/p1241/ Throttle Vent Control Motor Circuit 1 Malfunction | Powertrain | Medium |
| P1242 | Throttle Vent Control Motor Circuit 2 Malfunction → /auto/codes/p1242/ Throttle Vent Control Motor Circuit 2 Malfunction | Powertrain | Medium |
| P1243 | Throttle Position Insufficient → /auto/codes/p1243/ Throttle Position Insufficient | Powertrain | Medium |
| P1244 | Closed Throttle Position Insufficient → /auto/codes/p1244/ Closed Throttle Position Insufficient | Powertrain | Medium |
| P1245 | Intake Plenum Switchover Valve → /auto/codes/p1245/ Intake Plenum Switchover Valve | Powertrain | Medium |
| P1246 | Accelerator Position Sensor 1 Circuit Malfunction → /auto/codes/p1246/ Accelerator Position Sensor 1 Circuit Malfunction | Powertrain | Medium |
| P1247 | Accelerator Position Sensor 2 Circuit Malfunction → /auto/codes/p1247/ Accelerator Position Sensor 2 Circuit Malfunction | Powertrain | Medium |
| P1248 | Accelerator Position Sensors 1 & 2 Improper Correlation → /auto/codes/p1248/ Accelerator Position Sensors 1 & 2 Improper Correlation | Powertrain | Medium |
| P1249 | Wastegate Control Valve Performance → /auto/codes/p1249/ Wastegate Control Valve Performance | Powertrain | Medium |
| P1250 | Early Fuel Evaporation Heater Circuit → /auto/codes/p1250/ Early Fuel Evaporation Heater Circuit | Powertrain | Medium |
| P1251 | Throttle Position → /auto/codes/p1251/ Throttle Position | Powertrain | Medium |
| P1252 | Pedal Correlation PDS1 and LPDS High → /auto/codes/p1252/ Pedal Correlation PDS1 and LPDS High | Powertrain | Medium |
| P1253 | VTEC System Circuit Fault → /auto/codes/p1253/ VTEC System Circuit Fault | Powertrain | Medium |
| P1254 | Pedal Correlation PDS2 and LPDS High → /auto/codes/p1254/ Pedal Correlation PDS2 and LPDS High | Powertrain | Medium |
| P1255 | Pedal Correlation PDS2 and LPDS Low → /auto/codes/p1255/ Pedal Correlation PDS2 and LPDS Low | Powertrain | Medium |
| P1256 | Pedal Correlation PDS1 and HPDS → /auto/codes/p1256/ Pedal Correlation PDS1 and HPDS | Powertrain | Medium |
| P1257 | Supercharger System Overboost → /auto/codes/p1257/ Supercharger System Overboost | Powertrain | Medium |
| P1258 | Engine Coolant Overtemperature Protection Mode Active → /auto/codes/p1258/ Engine Coolant Overtemperature Protection Mode Active | Powertrain | Medium |
| P1259 | VTEC System Malfunction Rear Bank 1 → /auto/codes/p1259/ VTEC System Malfunction Rear Bank 1 | Powertrain | Medium |
| P1260 | Last Test Failed SCC Or Theft Detected, Vehicle Immobilized → /auto/codes/p1260/ Last Test Failed SCC Or Theft Detected, Vehicle Immobilized | Powertrain | Medium |
| P1261 | Cylinder #1 High To Low Side Short → /auto/codes/p1261/ Cylinder #1 High To Low Side Short | Powertrain | Medium |
| P1262 | Cylinder #2 High To Low Side Short → /auto/codes/p1262/ Cylinder #2 High To Low Side Short | Powertrain | Medium |
| P1263 | Cylinder #3 High To Low Side Short → /auto/codes/p1263/ Cylinder #3 High To Low Side Short | Powertrain | Medium |
| P1264 | Cylinder #4 High To Low Side Short → /auto/codes/p1264/ Cylinder #4 High To Low Side Short | Powertrain | Medium |
| P1265 | Cylinder #5 High To Low Side Short → /auto/codes/p1265/ Cylinder #5 High To Low Side Short | Powertrain | Medium |
| P1266 | Cylinder #6 High To Low Side Short → /auto/codes/p1266/ Cylinder #6 High To Low Side Short | Powertrain | Medium |
| P1267 | Cylinder #7 High To Low Side Short → /auto/codes/p1267/ Cylinder #7 High To Low Side Short | Powertrain | Medium |
| P1268 | Cylinder #8 High To Low Side Short → /auto/codes/p1268/ Cylinder #8 High To Low Side Short | Powertrain | Medium |
| P1269 | Immobilizer Code Not Programmed → /auto/codes/p1269/ Immobilizer Code Not Programmed | Powertrain | Medium |
| P1270 | Control Module Self-Test Torque Monitoring → /auto/codes/p1270/ Control Module Self-Test Torque Monitoring | Powertrain | Medium |
| P1271 | Ambient Air Pressure Sensor Electrical → /auto/codes/p1271/ Ambient Air Pressure Sensor Electrical | Powertrain | Medium |
| P1272 | Accelerator Pedal Position Sensor 2 → /auto/codes/p1272/ Accelerator Pedal Position Sensor 2 | Powertrain | Medium |
| P1273 | Accelerator Pedal Position Sensor 1 → /auto/codes/p1273/ Accelerator Pedal Position Sensor 1 | Powertrain | Medium |
| P1274 | Injectors Wired Incorrectly → /auto/codes/p1274/ Injectors Wired Incorrectly | Powertrain | Medium |
| P1275 | Accelerator Pedal Position (APP) Sensor 1 Circuit → /auto/codes/p1275/ Accelerator Pedal Position (APP) Sensor 1 Circuit | Powertrain | Medium |
| P1276 | Accelerator Pedal Position (APP) Sensor 1 Performance → /auto/codes/p1276/ Accelerator Pedal Position (APP) Sensor 1 Performance | Powertrain | Medium |
| P1277 | Accelerator Pedal Position Sensor 1 Circuit Low Voltage → /auto/codes/p1277/ Accelerator Pedal Position Sensor 1 Circuit Low Voltage | Powertrain | Medium |
| P1278 | Accelerator Pedal Position Sensor 1 Circuit High Voltage → /auto/codes/p1278/ Accelerator Pedal Position Sensor 1 Circuit High Voltage | Powertrain | Medium |
| P1279 | VTEC System Malfunction Front Bank 2 → /auto/codes/p1279/ VTEC System Malfunction Front Bank 2 | Powertrain | Medium |
| P1280 | Accelerator Pedal Position (APP) Sensor 2 Circuit → /auto/codes/p1280/ Accelerator Pedal Position (APP) Sensor 2 Circuit | Powertrain | Medium |
| P1281 | Accelerator Pedal Position (APP) Sensor 2 Performance → /auto/codes/p1281/ Accelerator Pedal Position (APP) Sensor 2 Performance | Powertrain | Medium |
| P1282 | Accelerator Pedal Position Sensor 2 Circuit Low Voltage → /auto/codes/p1282/ Accelerator Pedal Position Sensor 2 Circuit Low Voltage | Powertrain | Medium |
| P1283 | Switching Solenoid for Air Assisted Injection Valves Bank 1 → /auto/codes/p1283/ Switching Solenoid for Air Assisted Injection Valves Bank 1 Control Circuit Electrical | Powertrain | Medium |
| P1284 | Switching Solenoid for Air Assisted Injection Valves Bank 1 → /auto/codes/p1284/ Switching Solenoid for Air Assisted Injection Valves Bank 1 Control Circuit Signal Low | Powertrain | Medium |
| P1285 | Switching Solenoid for Air Assisted Injection Valves Bank 1 → /auto/codes/p1285/ Switching Solenoid for Air Assisted Injection Valves Bank 1 Control Circuit Signal High | Powertrain | Medium |
| P1286 | Accelerator Pedal Position (APP) Sensor 3 Performance → /auto/codes/p1286/ Accelerator Pedal Position (APP) Sensor 3 Performance | Powertrain | Medium |
| P1287 | Switching Solenoid for Air Assisted Injection Valves Bank 2 → /auto/codes/p1287/ Switching Solenoid for Air Assisted Injection Valves Bank 2 Control Circuit Electrical | Powertrain | Medium |
| P1288 | Switching Solenoid for Air Assisted Injection Valves Bank 2 → /auto/codes/p1288/ Switching Solenoid for Air Assisted Injection Valves Bank 2 Control Circuit Signal Low | Powertrain | Medium |
| P1289 | Switching Solenoid for Air Assisted Injection Valves Bank 2 → /auto/codes/p1289/ Switching Solenoid for Air Assisted Injection Valves Bank 2 Control Circuit Signal High | Powertrain | Medium |
| P1290 | CNG Fuel Pressure Too High → /auto/codes/p1290/ CNG Fuel Pressure Too High | Powertrain | Medium |
| P1291 | No Temp Rise Seen From Fuel Heaters → /auto/codes/p1291/ No Temp Rise Seen From Fuel Heaters | Powertrain | Medium |
| P1292 | CNG Pressure Sensor Voltage Too High → /auto/codes/p1292/ CNG Pressure Sensor Voltage Too High | Powertrain | Medium |
| P1293 | CNG Pressure Sensor Voltage Too Low → /auto/codes/p1293/ CNG Pressure Sensor Voltage Too Low | Powertrain | Medium |
| P1294 | Target Idle Not Reached → /auto/codes/p1294/ Target Idle Not Reached | Powertrain | Medium |
| P1295 | Loss Of 5 Volts To TP Sensor → /auto/codes/p1295/ Loss Of 5 Volts To TP Sensor | Powertrain | Medium |
| P1296 | Loss Of 5 Volts To MAP Sensor → /auto/codes/p1296/ Loss Of 5 Volts To MAP Sensor | Powertrain | Medium |
| P1297 | ELD Circuit Low Input → /auto/codes/p1297/ ELD Circuit Low Input | Powertrain | Medium |
| P1298 | Electrical Load Detector Circuit High Voltage → /auto/codes/p1298/ Electrical Load Detector Circuit High Voltage | Powertrain | Medium |
| P1299 | Your car isn’t acting right, and the Check Engine Light come → /auto/codes/p1299/ Your car isn’t acting right, and the Check Engine Light comes on. Your next step is to use your code scanner to find out what’s going on. If you see t | Powertrain | Medium |
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