| Source document | Controller | Fault pairs |
|---|---|---|
| OMH229936 9670/9770 STS engine control unit DTCs | Engine ECU | 161 |
| OMRG35856 PowerTech DTC list | Engine ECU | 153 |
| System | Fault pairs |
|---|---|
| Fuel | 127 |
| Engine | 84 |
| Electrical | 38 |
| Air Intake | 34 |
| Cooling | 12 |
| Lubrication | 10 |
| Aftertreatment | 5 |
| Network | 2 |
| Brakes/ABS | 1 |
| Instrument | 1 |
| Fault family | Fault pairs |
|---|---|
| Injector Cylinder Circuit | 64 |
| Sensor Supply Voltage Circuit | 26 |
| Crankshaft / Camshaft Position Sensor | 22 |
| Fuel Supply / Transfer Pump | 16 |
| Fuel Delivery (Low) Pressure Sensor | 13 |
| ECU Internal Fault (Memory/Software) | 12 |
| EGR Valve Position Sensor Circuit | 12 |
| Engine Coolant Temperature Sensor | 11 |
| Engine Oil Pressure Sensor | 10 |
| Fuel Rail / Common Rail Pressure | 10 |
| FMI | Meaning | Fault pairs |
|---|---|---|
| 0 | Reading in-range but far too high | 18 |
| 1 | Reading in-range but far too low | 9 |
| 2 | Signal unstable, intermittent or implausible | 30 |
| 3 | Circuit voltage high / short to supply | 43 |
| 4 | Circuit voltage low / short to ground | 40 |
| 5 | Current too low; open circuit | 28 |
| 6 | Current too high; short to ground | 21 |
| 7 | Mechanical part not reacting or misadjusted | 21 |
| 8 | Wrong frequency, pulse width or period | 5 |
| 9 | Message not arriving at expected rate | 3 |
| 10 | Value changing implausibly fast or slow | 7 |
| 11 | Fault detected, cause undetermined | 2 |
| 12 | Smart device or component defective | 6 |
| 13 | Calibration data outside limits | 21 |
| 14 | See manufacturer-specific instructions | 2 |
| 15 | Slightly above normal range | 8 |
| 16 | Moderately above normal range | 19 |
| 17 | Slightly below normal range | 7 |
| 18 | Moderately below normal range | 8 |
| 19 | Network-received value flagged as error | 2 |
| 31 | Fault present; no further detail | 14 |
69 distinct SPNs appear in these pairs, all of them standard SPNs whose meaning is the same on every make.
Rows for this OEM from the free sample. The dataset adds the ordered procedures for every pair, with cost and labour estimates where known and a part name where one is mapped.
| SPN | FMI | OEM code | Description | Fault family |
|---|---|---|---|---|
| 94 | 16 | — | Fuel delivery pressure sensor, moderately above normal range | Fuel Delivery (Low) Pressure Sensor |
| 107 | 0 | — | Air filter restriction sensor, reading far too high (most severe) | Air Filter Restriction |
| 190 | 18 | — | Engine speed (RPM) signal, moderately below normal range | Engine Speed / Overspeed Monitor |
| 637 | 8 | 38 | Engine camshaft/timing position sensor signal, missing or wrong frequency | Crankshaft / Camshaft Position Sensor |
| 654 | 5 | — | Injector cylinder 4, open circuit (current too low) | Injector Cylinder Circuit |
| 1075 | 6 | — | Electric fuel lift pump relay/circuit, shorted to ground (current too high) | Fuel Supply / Transfer Pump |
| 2630 | 16 | — | EGR fresh air (inlet) temperature sensor, moderately above normal range | EGR Cooler / EGR Differential Pressure Out of Range |
| 3822 | 13 | — | EGR valve 2 position sensor, calibration data invalid | EGR Valve Actuator Circuit and Calibration |