P099A: The gearbox solenoid G control gives readings outside the normal range
The gearbox solenoid G control gives readings outside the normal range. It is usually the part, its wiring or a connector with poor contact.
| Code | P099A |
|---|---|
| System | Engine and transmission |
| Group | P09xx, Transmission |
| Type | Generic: it means the same on every make |
How to read and clear P099A 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 P099A 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
- P0996 The gearbox oil pressure sensor F fails now and then
- P0997 The gearbox solenoid F control gives readings outside the normal range
- P0998 The gearbox solenoid F control gives a lower signal than normal
- P0999 The gearbox solenoid F control gives a higher signal than normal
- P099B The gearbox solenoid G control gives a lower signal than normal
- P099C The gearbox solenoid G control gives a higher signal than normal
- P099D The gearbox solenoid H control gives readings outside the normal range
- P099E The gearbox solenoid H control gives a lower signal than normal
What does code P099A mean?
The gearbox solenoid G control gives readings outside the normal range. It is usually the part, its wiring or a connector with poor contact.
How do you clear P099A?
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, P099A 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.
