P04D2: The EGR temperature sensor C fails now and then
The EGR temperature sensor C fails now and then. It is usually the part, its wiring or a connector with poor contact.
| Code | P04D2 |
|---|---|
| System | Engine and transmission |
| Group | P04xx, Emissions control |
| Type | Generic: it means the same on every make |
How to read and clear P04D2 with Final OBD
Plug an OBD2 scanner in under the steering wheel, switch the ignition on and open Final OBD. Under Faults you’ll see P04D2 with its description and whether it’s confirmed, pending or permanent.
If the engine stores it over standard OBD, with FREE you read this code with its explanation for nothing and clear it. With PRO you also read the faults of every control unit and clear them in all of them.
Clearing the code only turns the light off: if the cause is still there, it comes back. Clear it once it’s fixed, and not right before an inspection. It’s all in how to read and clear fault codes and in inspections and OBD.
Similar codes
- P04CE The EGR temperature sensor C has an electrical fault
- P04CF The EGR temperature sensor C gives readings outside the normal range
- P04D0 The EGR temperature sensor C gives a lower signal than normal
- P04D1 The EGR temperature sensor C gives a higher signal than normal
- P04D3 The exhaust brake input has an electrical fault
- P04D4 The exhaust brake input gives readings outside the normal range
- P04D5 The exhaust brake input gives a lower signal than normal
- P04D6 The exhaust brake input gives a higher signal than normal
- P0400 Exhaust gas recirculation (EGR) flow malfunction
- P0401 Exhaust gas recirculation (EGR) flow insufficient
- P0402 Exhaust gas recirculation (EGR) flow excessive
- P0403 EGR control circuit malfunction
What does code P04D2 mean?
The EGR temperature sensor C fails now and then. It is usually the part, its wiring or a connector with poor contact.
How do you clear P04D2?
With an OBD2 scanner and an app like Final OBD, which clears it for free if it’s stored by the engine control unit. But clearing it only turns the light off: if the cause isn’t fixed, P04D2 comes back.
Read it on your car
Final OBD reads and clears engine faults through standard OBD for free, each one explained in plain English. With PRO it also reads the faults of every control unit, each make’s own codes included, and clears them in all of them.
