P0899: The gearbox control system request gives a higher signal than normal
The gearbox control system request gives a higher signal than normal. It is usually the part, its wiring or a connector with poor contact.
| Code | P0899 |
|---|---|
| System | Engine and transmission |
| Group | P08xx, Transmission |
| Type | Generic: it means the same on every make |
How to read and clear P0899 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 P0899 with its description and whether it’s confirmed, pending or permanent.
This code is usually stored by the gearbox control unit. If the car reports it over standard OBD, you read it for nothing with FREE; to read it straight from the gearbox control unit, with its description and clearing, you need PRO.
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
- P0895 The gearbox shifts between gears too quickly
- P0896 The gearbox takes too long to shift between gears
- P0897 The gearbox fluid has deteriorated
- P0898 The gearbox control system request gives a lower signal than normal
- P089A The gear lever X position sensor 2 has an electrical fault
- P089B The gear lever X position sensor 2 gives readings outside the normal range
- P089C The gear lever X position sensor 2 gives a lower signal than normal
- P089D The gear lever X position sensor 2 gives a higher signal than normal
- P0841 Transmission fluid pressure sensor/switch A: circuit range or performance
- P0842 Transmission fluid pressure sensor/switch A: circuit low
- P0843 Transmission fluid pressure sensor/switch A: circuit high
- P0868 Transmission fluid pressure low
What does code P0899 mean?
The gearbox control system request gives a higher signal than normal. It is usually the part, its wiring or a connector with poor contact.
How do you clear P0899?
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, P0899 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.
