Generic Fault Codes & DTC List
Manufacturer and ECU-specific fault-code meanings. Check the stated ECU, model and code format against your diagnostic scan.
| Code | Meaning | Applicability |
|---|---|---|
| P016C | ISO/SAE Reserved | Generic Generic OBD |
| P016D | ISO/SAE Reserved | Generic Generic OBD |
| P016E | ISO/SAE Reserved | Generic Generic OBD |
| P016F | ISO/SAE Reserved | Generic Generic OBD |
| P0170 | Fuel trim (FT), bank 1 -malfunction | Generic Generic OBD |
| P0171 | System too lean, bank 1 | Generic Generic OBD |
| P0172 | System too rich, bank 1 | Generic Generic OBD |
| P0173 | Fuel trim (FT), bank 2 -malfunction | Generic Generic OBD |
| P0174 | System too lean, bank 2 | Generic Generic OBD |
| P0175 | System too rich, bank 2 | Generic Generic OBD |
| P0176 | Fuel composition sensor -circuit malfunction | Generic Generic OBD |
| P0177 | Fuel composition sensor -range/performance problem | Generic Generic OBD |
| P0178 | Fuel composition sensor -low input | Generic Generic OBD |
| P0179 | Fuel composition sensor -high input | Generic Generic OBD |
| P017A | ISO/SAE Reserved | Generic Generic OBD |
| P017B | ISO/SAE Reserved | Generic Generic OBD |
| P017C | ISO/SAE Reserved | Generic Generic OBD |
| P017D | ISO/SAE Reserved | Generic Generic OBD |
| P017E | ISO/SAE Reserved | Generic Generic OBD |
| P017F | ISO/SAE Reserved | Generic Generic OBD |
| P0180 | Fuel temperature sensor A -circuit malfunction | Generic Generic OBD |
| P0181 | Fuel temperature sensor A -range/performance problem | Generic Generic OBD |
| P0182 | Fuel temperature sensor A -low input | Generic Generic OBD |
| P0183 | Fuel temperature sensor A -high input | Generic Generic OBD |
| P0184 | Fuel temperature sensor A -circuit intermittent | Generic Generic OBD |
| P0185 | Fuel temperature sensor B -circuit malfunction | Generic Generic OBD |
| P0186 | Fuel temperature sensor B -range/performance problem | Generic Generic OBD |
| P0187 | Fuel temperature sensor B -low input | Generic Generic OBD |
| P0188 | Fuel temperature sensor B -high input | Generic Generic OBD |
| P0189 | Fuel temperature sensor B -circuit intermittent | Generic Generic OBD |
| P018A | Fuel Pressure Sensor "B" Circuit | Generic Generic OBD |
| P018B | Fuel Pressure Sensor "B" Circuit Range/Performance | Generic Generic OBD |
| P018C | Fuel Pressure Sensor "B" Circuit Low | Generic Generic OBD |
| P018D | Fuel Pressure Sensor "B" Circuit High | Generic Generic OBD |
| P018E | Fuel Pressure Sensor "B" Circuit Intermittent/Erratic | Generic Generic OBD |
| P018F | Fuel System Over Pressure Relief Valve Frequent Activation | Generic Generic OBD |
| P0190 | Fuel rail pressure (FRP) sensor -circuit malfunction | Generic Generic OBD |
| P0191 | Fuel rail pressure (FRP) sensor -range/performance problem | Generic Generic OBD |
| P0192 | Fuel rail pressure (FRP) sensor -low input | Generic Generic OBD |
| P0193 | Fuel rail pressure (FRP) sensor -high input | Generic Generic OBD |
| P0194 | Fuel rail pressure (FRP) sensor -circuit intermittent | Generic Generic OBD |
| P0195 | Engine oil temperature (EOT) sensor -circuit malfunction | Generic Generic OBD |
| P0196 | Engine oil temperature (EOT) sensor | Generic Generic OBD |
| P0197 | Engine oil temperature (EOT) sensor -low input | Generic Generic OBD |
| P0198 | Engine oil temperature (EOT) sensor -high input | Generic Generic OBD |
| P0199 | Engine oil temperature (EOT) sensor -circuit intermittent | Generic Generic OBD |
| P0200 | Injector -circuit malfunction | Generic Generic OBD |
| P0201 | Injector 1 -circuit malfunction | Generic Generic OBD |
| P0202 | Injector 2 -circuit malfunction | Generic Generic OBD |
| P0203 | Injector 3 -circuit malfunction | Generic Generic OBD |
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