Infiniti fault codes: probable meanings
Codes specific to Infiniti (often P1xxx, B1xxx, C1xxx, U1xxx). The manufacturer does not publish these meanings: they come from an open database and remain probable. The same code can have another meaning depending on the model or the year.
Codes: 94, from smallest to largest.
| Code | Probable meaning |
|---|---|
| P1106 | BARO Circuit Range Performance Malfunction |
| P1107 | BARO Circuit Low Input |
| P1108 | BARO Circuit High Input |
| P1121 | Throttle Position Lower Than Expected |
| P1122 | Throttle Position Higher Than Expected |
| P1128 | MAP Lower Than Expected |
| P1129 | MAP Higher Than Expected |
| P1162 | HO2S11 Circuit Fault Bank 1 Sensor 1 |
| P1163 | HO2S11 Slow Response Bank 1 Sensor 1 |
| P1164 | HO2S11 Circuit Fault Bank 1 Sensor 1 |
| P1165 | HO2S11 Slow Response Bank 1 Sensor 1 |
| P1166 | HO2S11 Heater Circuit Fault Bank 1 Sensor 1 |
| P1167 | HO2S11 Heater Circuit VS+ Fault Bank 1 Sensor 1 |
| P1168 | HO2S11 Label Circuit Low Voltage Fault Bank 1 Sensor 1 |
| P1169 | HO2S11 Label Circuit High Voltage Fault Bank 1 Sensor 1 |
| P1201 | Cylinder 1 Misfire |
| P1202 | Cylinder 2 Misfire |
| P1203 | Cylinder 3 Misfire |
| P1204 | Cylinder 4 Misfire |
| P1205 | Cylinder 5 Misfire |
| P1206 | Cylinder 6 Misfire |
| P1241 | Throttle Vent Control Motor Circuit 1 Malfunction |
| P1242 | Throttle Vent Control Motor Circuit 2 Malfunction |
| P1243 | Throttle Position Insufficient |
| P1244 | Closed Throttle Position Insufficient |
| P1246 | Accelerator Position Sensor 1 Circuit Malfunction |
| P1247 | Accelerator Position Sensor 2 Circuit Malfunction |
| P1248 | Accelerator Position Sensors 1 & 2 Improper Correlation |
| P1253 | VTEC System Circuit Fault |
| P1259 | VTEC System Malfunction Rear Bank 1 |
| P1279 | VTEC System Malfunction Front Bank 2 |
| P1297 | ELD Circuit Low Input |
| P1298 | Electrical Load Detector Circuit High Voltage |
| P1300 | Random Misfire |
| P1301 | Cylinder 1 Misfire |
| P1302 | Cylinder 2 Misfire |
| P1303 | Cylinder 3 Misfire |
| P1304 | Cylinder 4 Misfire |
| P1305 | Cylinder 5 Misfire |
| P1306 | Cylinder 6 Misfire |
| P1316 | Spark Plug Voltage Detection Circuit Malfunction Front Bank |
| P1317 | Spark Plug Voltage Detection Circuit Malfunction Rear Bank |
| P1318 | Spark Plug Voltage Detection Module Reset Circuit Malfunction Front Bank |
| P1319 | Spark Plug Voltage Detection Module Reset Circuit Malfunction Rear Bank |
| P1324 | Knock Sensor Power Source Circuit Low Voltage |
| P1336 | CKP Sensor B Range Performance |
| P1337 | CKP Sensor B Low Input |
| P1359 | CKP TDC Sensor Circuit Connector Disconnection |
| P1361 | TDC Sensor Intermittent Interruption |
| P1362 | TDC1 Sensor No Signal |
| P1366 | TDC2 Sensor Intermittent |
| P1367 | TDC2 Sensor No Signal |
| P1381 | CYP Sensor A Intermittent Interruption |
| P1382 | CYP Sensor A No Signal |
| P1386 | CYP Sensor B Intermittent Interruption |
| P1387 | CYP Sensor B No Signal |
| P1456 | Evaporative Emission Control System Leak Detected Fuel Tank System |
| P1457 | Evaporative Emission Control System Leak Detected Control Canister System |
| P1459 | EVAP Purge Flow Switch Malfunction |
| P1491 | EGR Valve Lift Insufficient Detected |
| P1498 | EGR Valve Lift Sensor High Voltage |
| P1508 | IAC Valve Circuit Failure |
| P1519 | IAC Valve Circuit Failure |
| P1607 | ECM Internal Circuit Failure A |
| P1608 | ECM Internal Circuit Failure B |
| P1655 | TMA or TMB Signal Line Fault |
| P1656 | Automatic Transmission System Malfunction |
| P1660 | A/T FI Data Line Failure |
| P1671 | A/T FI Data Line No Signal |
| P1672 | A/T FI Data Line Failure |
| P1676 | Traction Control System FI Data Line No Signal |
| P1677 | Traction Control System FI Data Line Failure |
| P1678 | FPTDR Signal Line Failure |
| P1681 | A/T FI Signal A Low Input |
| P1682 | A/T FI Signal A High Input |
| P1686 | A/T FI Signal B Low Input |
| P1687 | A/T FI Signal B High Input |
| P1690 | Traction Control System STB Line Failure |
| P1696 | Traction Control Fuel Cut Signal Low Input |
| P1697 | Traction Control Fuel Cut Signal High Input |
| P1705 | TCM A/T Gear Position Switch Circuit Shorted |
| P1706 | TCM A/T Gear Position Switch Circuit Open |
| P1709 | Automatic Transmission System Malfunction |
| P1738 | Automatic Transmission System Malfunction |
| P1739 | Automatic Transmission System Malfunction |
| P1753 | TCM A/T Lockup Solenoid Valve "A" Fault |
| P1758 | TCM A/T Lockup Solenoid Valve "B" Fault |
| P1768 | Automatic Transmission System Malfunction |
| P1773 | Automatic Transmission System Malfunction |
| P1788 | Automatic Transmission System Malfunction |
| P1790 | TCM A/T TP Sensor Circuit Fault |
| P1791 | TCM A/T Vehicle Speed Sensor Circuit Fault |
| P1793 | Automatic Transmission System Malfunction |
| P1795 | Automatic Transmission System Malfunction |
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Official meanings: OBDex (public domain, CC0). Manufacturer codes: dtc-database (MIT license), probable meanings not verified by the manufacturers. The same meaning can vary depending on the model: always have a diagnosis confirmed by a professional.