P07F5: The gearbox range control unit system voltage is below normal
The gearbox range control unit system voltage is below normal. It may be the control unit itself, its power supply or its connector.
| Code | P07F5 |
|---|---|
| System | Engine and transmission |
| Group | P07xx, Transmission |
| Type | Generic: it means the same on every make |
How to read and clear P07F5 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 P07F5 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
- P07F0 The gearbox range multiple function selection gives a higher signal than normal
- P07F2 The gearbox range control unit communication has an electrical fault
- P07F3 The gearbox range control unit communication gives a lower signal than normal
- P07F4 The gearbox range control unit communication gives a higher signal than normal
- P07F6 The gearbox is not getting the correct ratio in ninth gear
- P07F7 The gearbox is not getting the correct ratio in tenth gear
- P07FA The gearbox is not shifting properly out of ninth gear
- P07FD The gearbox is not shifting properly out of tenth gear
- P0700 Transmission control system: fault detected
- P0701 Transmission control system: range/performance
- P0702 Transmission control system: electrical fault
- P0703 Torque converter/brake switch B: circuit fault
What does code P07F5 mean?
The gearbox range control unit system voltage is below normal. It may be the control unit itself, its power supply or its connector.
How do you clear P07F5?
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, P07F5 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.
