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Land Rover Factory DTC Code Definitions
| P1118 | Radiator outiet engine coolant temperature (ECT) | high input |
| P1129 | Heated oxygen sensors (HO2S) 1 | sensors transposed |
| P1170 | Downstream fuel trim (FT), bank 1 | malfunction |
| P1171 | System too lean, bank 1 | |
| P1172 | System too rich, bank 1 | |
| P1173 | Downstream fuel trim (Fr), bank 1 | malfunction |
| P1174 | System too lean, bank 2 | |
| P1175 | System too rich, bank 2 | |
| P1230 | Fuel pump relay | open circuit |
| P1231 | Fuel pump relay | short circuit to positive |
| P1232 | Fuel pump relay | short circuit to ground |
| P1300 | Random/multiple cylinder(s) | misfire detected |
| P1412 | Secondary air injection (AIR) system, bank 1 | malfunction |
| P1413 | Secondary air injection (AIR) system, bank 1 | control valve open |
| P1414 | Secondary air injection (AIR) system, bank 1 | low flow |
| P1415 | Secondary air injection (AIR) system, bank 2 | malfunction |
| P1416 | Secondary air injection (AIR) system, bank 2 | control valve open |
| P1417 | Secondary air injection (AIR) system, bank 2 | low flow |
| P1450 | Evaporative emission ([VAP) pressure pump | circuit plausibility |
| P1451 | Leak detection pump | |
| P1452 | Evaporative emission (EVAP) pressure pump | low current |
| P1453 | Evaporative emission (EVAP) pressure pump | high current |
| P1481 | Leak detection pump | heater circuit |
| P1482 | Leak detection pump | heater circuit |
| P1483 | Leak detection pump | heater circuit |
| P1510 | Idle air control (IAC) valve | opening circuit |
| P1513 | Idle air control (IAC) valve | opening circuit |
| P1514 | Idle air control (IAC) valve | opening circuit |
| P1551 | Idle air control (IAC) valve | closing circuit |
| P1552 | Idle air control (IAC) valve | closing circuit |
| P1553 | Idle air control (IAC) valve | closing circuit |
| P1590 | Antilock brake system (ASS) rough roadsignal | error message from ABS control unit |
| P1591 | Antilock brake system (ASS) rough roadsignal | short circuit to ground, open circuit |
| P1592 | Antilock brake system (ASS) rough roadsignal | short circuit to positive |
| P1669 | Engine control module (ECM) cooling fan | circuit malfunction |
| P1670 | Engine control module (ECM) cooling fan | circuit low |
| P1671 | Engine control module ([CM) cooling fan | circuit high |
| P1700 | Transfer box | low range signal implausible |
| P1701 | Transfer box | fault signal |
| P1702 | Transfer box signal line | communication error |
| P1703 | Transfer box link | signal line |
| P1708 | Transfer box link | signal line |
| P1776 | Transmission control system | torque interface malfunction |