Electrical codes for automotive equipment
General
* P0 — Engine and transmission control
* P1 — Motor power supply
* P2 — Fuel supply components
* P3 — Ignition and emissions
* P4 — Additional control systems
* P5 — Cruise control and speed sensors
* P6 — Gearboxes
* P7 — Hybrid vehicles
* P8 — Electrical equipment
* P9 — Transmission control module
Codes by system
Motor control (P0)
* P0100 — Mass air flow (MAF) sensor malfunction
* P0101 — MAF sensor signal too low
* P0102 — MAF sensor signal too high
* P0103 — Mass Air Flow (MAF) Sensor Circuit Malfunction
* P0104 — Manifold absolute pressure (MAP) sensor malfunction
* P0105 — MAP sensor signal too low
* P0106 - MAP sensor signal too high
* P0107 — MAP sensor circuit malfunction
Motor power supply (P1)
* P1100 — Intake Air Temperature (IAT) Sensor Malfunction
* P1101 — IAT sensor signal too low
* P1102 — IAT sensor signal too high
* P1103 — IAT sensor circuit malfunction
* P1104 — Engine Coolant Temperature (ECT) Sensor Malfunction
* P1105 — ECT sensor signal too low
* P1106 — ECT sensor signal too high
* P1107 — ECT sensor circuit malfunction
Fuel delivery components (P2)
* P2100 — Throttle Position Sensor (TPS) Malfunction
* P2101 — TPS sensor signal too low
* P2102 — TPS sensor signal too high
* P2103 — TPS sensor circuit malfunction
* P2104 — Accelerator pedal position (APP) sensor malfunction
* P2105 — APP sensor signal too low
* P2106 — APP sensor signal too high
* P2107 — APP sensor circuit malfunction
Ignition and Emissions (P3)
* P3100 — Bank 1 Oxygen (O2) Sensor Malfunction, Sensor 1
* P3101 — Bank 1 O2 sensor signal too low, sensor 1
* P3102 — Bank 1 O2 sensor signal too high, sensor 1
* P3103 — Bank 1 Sensor O2 Circuit Malfunction, Sensor 1
* P3104 — Bank 2 O2 Sensor Malfunction, Sensor 1
* P3105 — Bank 2 Sensor O2 Signal Too Low, Sensor 1
* P3106 — Bank 2 Sensor O2 Signal Too High, Sensor 1
* P3107 — Bank 2 Sensor O2 Circuit Malfunction, Sensor 1
Additional control systems (P4)
* P4100 — Outside Air Temperature (OAT) Sensor Malfunction
* P4101 — OAT sensor signal too low
* P4102 — OAT sensor signal too high
* P4103 — OAT sensor circuit malfunction
* P4104 — Vehicle Speed Sensor (VSS) Malfunction
* P4105 — VSS sensor signal too low
* P4106 — VSS sensor signal too high
* P4107 — VSS sensor circuit malfunction
Cruise control and speed sensors (P5)
* P5100 — Cruise control servo malfunction
* P5101 — Speed Sensor (SS) Signal Too Low
* P5102 — SS sensor signal too high
* P5103 — Sensor SS circuit malfunction
* P5104 — Steering Wheel Position Sensor (WPS) Malfunction
* P5105 — WPS sensor signal too low
* P5106 — WPS sensor signal too high
* P5107 — WPS sensor circuit malfunction
Gearboxes (P6)
* P6100 — Transmission Input Shaft Speed Sensor (ISS) Malfunction
* P6101 — ISS sensor signal too low
* P6102 — ISS sensor signal too high
* P6103 — ISS sensor circuit malfunction
* P6104 — Transmission Output Shaft Speed Sensor (OSS) Malfunction
* P6105 — OSS sensor signal too low
* P6106 — OSS sensor signal too high
* P6107 — OSS sensor circuit malfunction
Hybrid vehicles (P7)
* P7100 — High voltage electrical control unit (PEU) malfunction
* P7101 — High voltage battery voltage too low
* P7102 — High Voltage Battery Voltage Too High
* P7103 — High Voltage Battery Circuit Malfunction
* P7104 — Electric motor malfunction (MG)
* P7105 — MG power too low
* P7106 — MG power too high
* P7107 — MG circuit malfunction
Electrical equipment (P8)
* P8100 — Body Control Module (BCM) Malfunction
* P8101 — Line voltage too low
* P8102 — Line voltage too high
* P8103 — Power circuit malfunction
* P8104 — Generator fault
* P8105 — Generator output current too low
* P8106 — Generator output current too high
* P8107 — Alternator circuit malfunction
Transmission control module (P9)
* P9100 — Transmission Control Module (TCM) Malfunction
* P9101 — Transmission pressure too low
* P9102 — Transmission pressure too high
* P9103 — Transmission Pressure Circuit Malfunction
* P9104 — Transmission Speed Sensor (TSS) Malfunction
* P9105 — TSS sensor signal too low
* P9106 — TSS sensor signal too high
* P9107 — TSS sensor circuit malfunction