| P1000 | OBD-ll monitor testing not complete | |||
| P1001 | Data link connector (DLC) | self-test terminated | ||
| P1100 | Mass air flow (MAF) sensor | intermittent sensing | ||
| P1101 | Mass air flow (MAF) sensor | out of self test range | ||
| P1102 | Mass air flow (MAF) sensor | incomparable with TP sensor signal | signal low | |
| P1103 | Mass air flow (MAF) sensor | incomparable with RPM signal | signal high | |
| P1110 | Intake air temperature (IAT) sensor (engine) | short open circuit | ||
| P1112 | Intake air temperature (IAT) sensor | intermittent sensing | ||
| P1113 | Intake air temperature (IAT) sensor (supercharger) | short/open circuit | ||
| P1114 | Intake air temperature (IAT) sensor | voltage low | ||
| P1115 | Intake air temperature (IAT) sensor | voltage high | ||
| P1116 | Engine coolant temperature (ECT) sensor | out of self test range | ||
| P1117 | Engine coolant temperature (ECT) sensor | intermittent sensing | ||
| P1120 | Throttle position (TP) sensor | out of range “low” | ||
| P1121 | Throttle position (TP) sensor | incomparable with MAF sensor signal | ||
| P1122 | Throttle position (TP) sensor | stuck closed | ||
| P1123 | Throttle position (TP) sensor | stuck open | ||
| P1124 | Throttle position (TP) sensor | out of self test range | ||
| P1125 | Throttle position (TP) sensor | intermittent circuit fault | ||
| P1126 | Throttle position (TP) sensor | circuit fault | ||
| P1127 | Heated oxygen sensor (HO2S) | RH or rear bank | front (6 cyl) | heater circuit malfunction |
| P1128 | Heated oxygen sensor (HO2S) | front | bank 1/bank 2 sensors transposed | |
| P1129 | Heated oxygen sensor (HO2S) | rear | bank 1/bank 2 sensors transposed | |
| P1130 | Heated oxygen sensor (HO2S) | front (4 cyl) | adaptive limit achieved | |
| P1131 | Heated oxygen sensor (HO2S) | front (4 cyl) | lean mixture indicated | |
| P1132 | Heated oxygen sensor (HO2S) | front (4 cyl) | rich mixture indicated | |
| P1133 | Fuel trim (FT) lean mixture | bank 1 | ||
| P1134 | Fuel trim (FT) rich mixture | bank 1 | ||
| P1135 | Heated oxygen sensor (HO2S) 1/ bank 1/heater control | circuit low | ||
| P1136 | Heated oxygen sensor (H02S) 1/ bank 1/heater control | circuit high | ||
| P1137 | Heated oxygen sensor (HO2S) rear | adaptive limit achieved | ||
| P1138 | Heated oxygen sensor (HO2S) rear | adaptive limit achieved | ||
| P1141 | Heated oxygen sensor (HO2S) 2/ bank 1/heater control | circuit low | ||
| P1142 | Heated oxygen sensor (HO2S) 2/ bank 1/heater control | circuit high | ||
| P1143 | Heated oxygen sensor (HO2S) 2/ bank 1 | lean mixture indicated | ||
| P1144 | Heated oxygen sensor (HO2S) 2/ bank 1 | rich mixture indicated | ||
| P1150 | Heated oxygen sensor (HO2S) | LH or front bank | front (6 cyl) | adaptive limit achieved |
| P1151 | Heated oxygen sensor (HO2S) | LH or front bank | front (6 cyl) | lean mixture indicated |
| P1152 | Heated oxygen sensor (HO2S) | LH or front bank | front (6 cyl) | rich mixture indicated |
| P1153 | Fuel trim (FT) lean mixture | bank 2 | ||
| P1154 | Fuel trim (FT) rich mixture | bank 2 | ||
| P1157 | Heated oxygen sensor (HO2S) 2/ bank 2 | lean mixture indicated | ||
| P1158 | Heated oxygen sensor (HO2S) 2/ bank 2 | rich mixture indicated | ||
| P1169 | Heated oxygen sensor (HO2S) | rear (6 cyl) | voltage high | |
| P1170 | Heated oxygen sensor (HO2S) | front (4 cyl) | voltage high | |
| P1173 | Heated oxygen sensor (HO2S) RH or rear bank | front (6 cyl) | voltage high | |
| P1195 | Exhaust gas Recirculation (EGR) system sensor | malfunction | ||
| P1196 | Starter signal | circuit malfunction | ||
| P1244 | Generator/regulator system | load input out of range | ||
| P1245 | Generator/regulator system | load input out of range | ||
| P1246 | Generator/regulator system | load input out of range | ||
| P1250 | Fuel pressure (FP) control solenoid valve 1 | malfunction | ||
| P1251 | Idle speed control (ISC) system | rpm lower than expected | ||
| P1252 | Fuel pressure (FP) control solenoid valve 2 | malfunction | ||
| P1260 | Theft detected | engine immobilized | ||
| P1270 | Maximum engine RPM or vehicle speed obtained | |||
| P1285 | Cylinder head temperature (CHT) sensor | overt eating detected | ||
| P1288 | Cylinder head temperature (CHT) sensor | out of self test range | ||
| P1289 | Cylinder head temperature (CHI) sensor | circuit malfunction | ||
| P1290 | Cylinder head temperature (CHI) sensor | circuit malfunction | ||
| P1299 | Cylinder head temperature (CHT) sensor | fail safe cooling activated | ||
| P1309 | Misfire detection monitor | not enabled | ||
| P1336 | Crankshaft position (0(P) sensor/camshaft position (CMP) sensor | circuit range/performance | ||
| P1345 | Camshaft position (CMP) sensor | signal malfunction | ||
| P1351 | Engine control module (ECM) | loss of ignition diagnostic monitor | ||
| P1352 | Ignition coil A | primary circuit malfunction | ||
| P1353 | Ignition coil B | primary circuit malfunction | ||
| P1354 | Ignition coil C | primary circuit malfunction | ||
| P1358 | Engine control module (ECM) | loss of ignition diagnostic monitor | ||
| P1359 | Engine control module (ECM) | loss of ignition output signal | ||
| P1360 | Ignition coil A | secondary circuit malfunction | ||
| P1361 | Ignition coil B | secondary circuit malfunction | ||
| P1362 | Ignition coil C | secondary circuit malfunction | ||
| P1364 | Ignition coil | primary circuit malfunction | ||
| P1365 | Ignition coil | secondary circuit malfunction | ||
| P1382 | Camshaft position (CMP) sensor | malfunction | ||
| P1387 | Camshaft position (CMP) sensor | malfunction | ||
| P1390 | Octane adjust | out of self test range | ||
| P1400 | Differential pressure feedback sensor | low voltage detected | ||
| P1401 | Differential pressure feedback sensor | high voltage detected | ||
| P1402 | Exhaust gas Recirculation (EGR) valve position sensor | voltage low/high | ||
| P1403 | Differential pressure feedback sensor | hoses reversed | ||
| P1405 | Differential pressure feedback sensor | upstream hose off or plugged | ||
| P1406 | Differential pressure feedback sensor | downstream hose off or plugged | ||
| P1407 | Exhaust gas Recirculation (EGR) system | no flow detected | ||
| P1408 | Exhaust gas Recirculation (EGR) system | flow out of self test range | ||
| P1409 | Electronic vacuum regulator control | circuit malfunction | ||
| P1410 | Intake air flap control system (Mazda 6) | circuit malfunction | ||
| P1412 | Exhaust gas Recirculation (ECR) solenoid | malfunction | ||
| P1432 | Engine coolant thermostat | circuit malfunction | ||
| P1443 | Evaporative emission (EVAP) canister purge control system | |||
| P1444 | Purge flow sensor | low input | ||
| P1445 | Purge flow sensor | high input | ||
| P1446 | Evaporative emission (EVAP) system | |||
| P1449 | Evaporative emission (EVAP) canister purge system | tank pressure problem | ||
| P1450 | Evaporative emission (EVAP) canister purge system | leak | ||
| P1451 | Evaporative emission (EVAP) canister vent valve | circuit malfunction | ||
| P1455 | Fuel tank level sensor | short/open circuit | ||
| P1456 | Evaporative emission (EVAP) system | |||
| P1457 | Evaporative emission (EVAP) system | |||
| P1460 | Wide open throttle (WOT) air conditioning cutoff | circuit malfunction | ||
| P1461 | NC refrigerant pressure sensor | high voltage | ||
| P1462 | NC refrigerant pressure sensor | low voltage | ||
| P1463 | NC refrigerant pressure sensor | insufficient pressure change | ||
| P1464 | NC control signal | voltage high during self-test | ||
| P1465 | NC control signal | malfunction | ||
| P1469 | Frequent NC compressor clutch cycling | |||
| P1473 | Cooling fan | circuit malfunction | ||
| P1474 | NC control signal | voltage high during self-test | ||
| P1475 | Cooling fan | circuit malfunction | ||
| P1476 | Cooling fan | circuit malfunction | ||
| P1477 | Cooling fan ‘medium” (Tribute) | circuit malfunction | ||
| P1479 | NC condenser blower motor relay | circuit malfunction | ||
| P1480 | Cooling fan | circuit malfunction | ||
| P1481 | Cooling fan | circuit malfunction | ||
| P1485 | Exhaust gas Recirculation (EGR) valve | malfunction | ||
| P1486 | Exhaust gas Recirculation (ECR) valve | malfunction | ||
| P1487 | Exhaust gas Recirculation (EGR) valve | malfunction | ||
| P1496 | Exhaust gas Recirculation (EGR) valve coil I | short/open circuit | ||
| P1497 | Exhaust gas Recirculation (ECR) valve coil 2 | short/open circuit | ||
| P1498 | Exhaust gas Recirculation (EGR) valve coil 3 | short/open circuit | ||
| P1499 | Exhaust gas Recirculation (EOR) valve coil 4 | short/open circuit | ||
| P1500 | Vehicle speed sensor WSS) | intermittent fault | ||
| P1501 | Vehicle speed sensor (VSS) | out of self test range | ||
| P1502 | Vehicle speed sensor (VSS) | signal malfunction | ||
| P1504 | Idle air control (IAC) system | circuit malfunction | ||
| P1505 | Idle air control (IAC) system | |||
| P1506 | Idle air control (IAC) system | over speed error | ||
| P1507 | Idle air control (IAC) system | under speed error | ||
| P1508 | Idle air control (IAC) valve 1 | short/open circuit | ||
| P1509 | Idle air control (IAC) valve 2 | short/open circuit | ||
| P1510 | Idle air control (IAC) system | malfunction | ||
| P1511 | Idle air control (IAC) system | malfunction | ||
| P1512 | Intake manifold air control | stuck close | ||
| P1516 | Neutral position (NP) switch | circuit malfunction | ||
| P1518 | Intake manifold air control | stuck open | ||
| P1519 | Intake manifold air control | stuck closed | ||
| P1520 | Intake manifold air control | circuit malfunction | ||
| P1521 | Intake manifold air control solenoid 1 | short/open circuit | ||
| P1522 | Intake manifold air control solenoid 2 | short/open circuit | ||
| P1523 | Intake manifold air control solenoid | circuit malfunction | ||
| P1524 | Charge air cooler bypass solenoid valve | malfunction | ||
| P1525 | Supercharger air control solenoid (vacuum) | short/open circuit | ||
| P1526 | Supercharger air control solenoid (vent) | short/open circuit | ||
| P1527 | Bypass air solenoid valve | short/open circuit | ||
| P1528 | Idle air control (IAC) system | malfunction | ||
| P1529 | L/C atmospheric balance air control solenoid valve | malfunction | ||
| P1537 | Intake manifold air control solenoid/ bank 1 | solenoid stuck open | ||
| P1538 | Intake manifold air control solenoid/ bank 2 | solenoid stuck open | ||
| P1540 | Supercharger air control solenoid | short/open circuit | ||
| P1550 | Power steering pressure (PSP) switch | malfunction | ||
| P1562 | Engine control module (ECM) | battery voltage low | ||
| P1565 | Cruise control system | |||
| P1566 | Cruise control system (Tribute) | |||
| P1567 | Cruise control system | |||
| P1568 | Cruise control system | |||
| P1569 | Intake manifold air control | circuit low | ||
| P1570 | Intake manifold air control | circuit high | ||
| P1572 | Brake pedal position (BPP) switch | circuit malfunction | ||
| P1600 | Engine control module (ECM) | KAM error | ||
| P1601 | ECM to AT communication | signal error | ||
| P1602 | Immobilizer control module | communication error | ||
| P1603 | Engine control module (ECM) | incorrect immobilizer code | ||
| P1604 | Engine control module (ECM) | incorrect immobilizer code | ||
| P1605 | Engine control module (ECM) | keep alive test error | ||
| P1608 | Engine control module (ECM) | knock function malfunction | ||
| P1609 | Engine control module (ECM) | supply voltage | ||
| P1621 | Engine control module (ECM) | incorrect immobilizer code after cranking | ||
| P1622 | Engine control module (ECM) | incorrect immobilizer key code | ||
| P1623 | Engine control module (ECM) | Immobilize read/write error/ EEPROM damaged | ||
| P1624 | Engine control module (ECM) | immobilize communication error | ||
| P1627 | ECM to ABS/TCS communication | signal error | ||
| P1628 | ECM to ABS/TCS communication | signal error | ||
| P1630 | Generator voltage | circuit malfunction | ||
| P1631 | Generator voltage | no charge | ||
| P1632 | Battery voltage monitor | circuit malfunction | ||
| P1633 | Battery voltage | overcharging | ||
| P1634 | Generator terminal B | open circuit | ||
| P1635 | Engine control module (ECM) | processor fault | ||
| P1639 | Engine control module (ECM) | keep alive test error | ||
| P1641 | Fuel pump | circuit malfunction | ||
| P1645 | Fuel pump | circuit malfunction | ||
| P1650 | Power steering pressure (PSP) switch | out of self test range | ||
| P1651 | Power steering pressure (PSP) switch | input malfunction | ||
| P1652 | Power steering pressure (PSP) switch | circuit malfunction | ||
| P1700 | Transmission system | malfunction | ||
| P1701 | Transmission solenoid malfunction | reverse gear engagement error | ||
| P1702 | Transmission range (TR) sensor | circuit malfunction | ||
| P1703 | Brake pedal position (BPP) switch | torque converter | out of self test range | |
| P1704 | Transmission range (TR) sensor | malfunction | ||
| P1705 | Transmission range (TR) sensor | out of self test range | ||
| P1708 | Clutch pedal position (CPP) switch | malfunction | ||
| P1709 | Park/Neutral position switch (except B series Pickup) | out of self test range | ||
| P1711 | Transmission fluid temperature sensor | out of self test range | ||
| P1713 | Transmission fluid temperature sensor | performance | ||
| P1714 | AT | shift solenoid 1 | mechanical failure | |
| P1715 | AT | shift solenoid 2 | mechanical failure | |
| P1716 | AT | shift solenoid 3 | mechanical failure | |
| P1717 | AT | shift solenoid 4 | mechanical failure | |
| P1718 | Transmission fluid temperature sensor | performance | ||
| P1719 | Overdrive system | loss of signal | ||
| P1720 | Vehicle speed sensor (VSS) | no signal | ||
| P1721 | Shift solenoid (55)1 | malfunction | ||
| P1722 | Shift solenoid (SS) 2 | malfunction | ||
| P1723 | Shift solenoid (55) 3 | malfunction | ||
| P1724 | Shift solenoid (SS) 4 | malfunction | ||
| P1729 | 4x4 low range switch | switch error | ||
| P1735 | Gear selection/ 1-2 | shift malfunction | ||
| P1736 | Gear selection/ 2-3 | shift malfunction | ||
| P1737 | Torque converter clutch (TCC) solenoid valve | malfunction | ||
| P1738 | Shift time error | |||
| P1740 | Torque converter clutch (TCC) control | malfunction | ||
| P1741 | Torque converter clutch (TCC) control | malfunction | ||
| P1742 | Torque converter clutch (TCC) solenoid valve | malfunction | ||
| P1743 | Torque converter clutch (TCC) solenoid valve | malfunction | ||
| P1744 | Torque converter clutch (TCC) system | malfunction | ||
| P1745 | AT | electronic pressure control solenoid | circuit malfunction | |
| P1746 | AT | electronic pressure control solenoid | low input | |
| P1747 | AT | electronic pressure control solenoid | high input | |
| P1748 | AT | electronic pressure control solenoid | malfunction | |
| P1749 | AT | electronic pressure control solenoid system | ||
| P1751 | AT | shift solenoid I | open circuit | |
| P1752 | AT | shift solenoid 1 | short circuit | |
| P1754 | AT | freewheeling clutch solenoid | circuit malfunction | |
| P1756 | AT | shift solenoid 2 | open circuit | |
| P1757 | AT | shift solenoid 2 | short circuit | |
| P1760 | AT | electronic pressure control solenoid | short to ground | |
| P1761 | AT | shift solenoid 3 | performance | |
| P1762 | Transmission | band failure | ||
| P1765 | AT | gear 3-2 timing solenoid | malfunction | |
| P1767 | AT | torque converter clutch (TCC) solenoid | circuit malfunction | |
| P1770 | AT | overrun clutch solenoid valve | malfunction | |
| P1771 | AT | throttle position (TP) sensor | open circuit | |
| P1772 | AT | throttle position (TP) sensor | short circuit | |
| P1775 | AT | torque reduction signal 1 | signal problem | |
| P1776 | AT | torque reduction signal 2 | signal problem | |
| P1777 | AT | torque reduction signal (water temperature signal) | malfunction | |
| P1780 | Transmission control switch | out of self test range | ||
| P1781 | 4x4 low range switch | out of self test range | ||
| P1783 | Transmission | over temperature condition | ||
| P1788 | AT | 3-2 timing/coasting clutch solenoid | open circuit during self test | |
| P1789 | AT | 3-2 timing/coasting clutch solenoid | short circuit during self test | |
| P1790 | Throttle position (TI’) sensor | malfunction | ||
| P1792 | Barometric pressure (BARO) sensor | circuit malfunction | ||
| P1793 | Mass air flow (MAF) sensor/intake air temperature (IAT) sensor | circuit malfunction | ||
| P1794 | Engine control module (ECM) | battery voltage low | ||
| P1795 | Closed throttle position (CTP) switch | malfunction | ||
| P1797 | Park/neutral position (PNP) switch/clutch pedal position (CPP) switch | |||
| P1798 | Engine coolant temperature (ECT) sensor | circuit intermittent | ||
| P1799 | Torque converter clutch (TCC) solenoid valve | malfunction | ||
| P1900 | Turbine shaft speed (TSS) sensor | intermittent | ||
| P1901 | Turbine shaft speed (TSS) sensor | intermittent | ||
| U1020 | CAN data bus | A/C clutch signal malfunction | ||
| U1039 | CAN data bus | VSS signal malfunction | ||
| U1041 | CAN data bus | VSS signal malfunction | ||
| U1051 | CAN data bus | brake signal malfunction | ||
| U1131 | CAN data bus | fuel system signal malfunction | ||
| U1147 | CAN data bus | vehicle security signal malfunction | ||
| U1262 | CAN data bus | circuit malfunction | ||
| U1451 | CAN data bus | alarm system control module signal malfunction | ||
| U2243 | CAN data bus | external environment signal malfunction |