Isuzu fault codes
6,918 codes · 5 vehicle records · 107 ECU records · 0 live-data parameters
Codes 6,918
| Code | Description | Brands | System |
|---|---|---|---|
| P20DC | Exhaust aftertreatment fuel supply control stuck closed | 21 | Powertrain |
| P20DD | Exhaust aftertreatment fuel pressure sensor circuit | 22 | Powertrain |
| P20DE | Exhaust Aftertreatment Fuel Pressure Sensor Circuit Range/Performance | 24 | Powertrain |
| P20DF | Exhaust Aftertreatment Fuel Pressure Sensor Circuit Low | 24 | Powertrain |
| P20E0 | Exhaust Aftertreatment Fuel Pressure Sensor Circuit High | 23 | Powertrain |
| P20E1 | Exhaust aftertreatment fuel pressure sensor circuit intermittent/erratic | 20 | Powertrain |
| P20E2 | Exhaust Gas Temperature Sensor 1/2 Correlation (Bank 1) | 27 | Powertrain |
| P20E3 | Exhaust Gas Temperature Sensor 1/3 Correlation (Bank 1) | 25 | Powertrain |
| P20E4 | Exhaust Gas Temperature Sensor 2/3 Correlation (Bank 1) | 26 | Powertrain |
| P20E5 | Exhaust gas temperature sensor 1/2 correlation bank 2 | 22 | Powertrain |
| P20E6 | Reductant injection air pressure too low | 22 | Powertrain |
| P20E7 | Reductant injection air pressure too high | 21 | Powertrain |
| P20E8 | Reductant Pressure Too Low | 29 | Powertrain |
| P20E9 | Reductant pressure too high | 29 | Powertrain |
| P20EA | Reductant Control Module Power Relay De-Energized Performance - Too Early | 27 | Powertrain |
| P20EB | Reductant Control Module Power Relay De-Energized Performance - Too Late | 27 | Powertrain |
| P20EC | SCR NOx catalyst - overtemperature bank 1 | 21 | Powertrain |
| P20ED | SCR NOx pre-catalyst - overtemperature bank 1 | 22 | Powertrain |
| P20EE | SCR NOx Catalyst Efficiency Below Threshold (Bank 1 Catalyst 1) | 31 | Powertrain |
| P20EF | SCR NOx pre- catalyst efficiency below threshold bank 1 | 21 | Powertrain |
| P20F0 | SCR NOx catalyst - overtemperature bank 2 | 21 | Powertrain |
| P20F1 | SCR NOx pre-catalyst - overtemperature bank 2 | 21 | Powertrain |
| P20F2 | SCR NOx catalyst efficiency below threshold bank 2 | 22 | Powertrain |
| P20F3 | SCR NOx pre- catalyst efficiency below threshold bank 2 | 21 | Powertrain |
| P20F4 | Reductant consumption too low | 27 | Powertrain |
| P20F5 | Reductant consumption too high | 27 | Powertrain |
| P20F6 | Reductant injection valve stuck open bank 1 unit 1 | 24 | Powertrain |
| P20F7 | Reductant injection valve stuck open bank 2 unit 1 | 21 | Powertrain |
| P20F8 | Intake manifold runner control circuit performance bank 1 | 15 | Powertrain |
| P20F9 | Intake manifold runner control circuit performance bank 2 | 7 | Powertrain |
| P20FA | Reductant pump 'B' control circuit/open | 11 | Powertrain |
| P20FB | Reductant pump 'B' control performance/stuck off | 10 | Powertrain |
| P20FC | Reductant pump 'B' control circuit low | 11 | Powertrain |
| P20FD | Reductant pump 'B' control circuit high | 11 | Powertrain |
| P20FE | Reductant metering unit 1 performance | 15 | Powertrain |
| P20FF | Reductant control module performance | 16 | Powertrain |
| P2100 | Throttle Actuator A Control Motor Circuit/Open | 42 | Powertrain |
| P2101 | Throttle Actuator A Control Motor Circuit Range/Performance | 42 | Powertrain |
| P2102 | Throttle Actuator A Control Motor Circuit Low | 38 | Powertrain |
| P2103 | Throttle Actuator A Control Motor Circuit High | 40 | Powertrain |
| P2104 | Engine forced idle | 34 | Powertrain |
| P2105 | Engine forced stop | 33 | Powertrain |
| P2106 | Engine performance limit | 34 | Powertrain |
| P2107 | Throttle Actuator A Control Module Processor | 33 | Powertrain |
| P2108 | Throttle Actuator Control Module Performance | 36 | Powertrain |
| P2109 | Throttle/Pedal Position Sensor A Minimum Stop Performance | 37 | Powertrain |
| P210A | Throttle Actuator B Control Motor Circuit/Open | 31 | Powertrain |
| P210B | Throttle actuator 'B' control motor circuit range/performance | 26 | Powertrain |
| P210C | Throttle actuator 'B' control motor circuit low | 28 | Powertrain |
| P210D | Throttle actuator 'B' control motor circuit high | 28 | Powertrain |
Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.