MasterTuning Fault code dictionary (DTC)

P0700 — Transmission control system: MIL request

Severity: Warning Can you drive? With caution: limp mode possible, have it checked soon Make: All makes (OBD-II standard)
MeaningThis is not a fault in itself: the transmission control unit is asking the dashboard to light the warning lamp because it has stored a fault of its own. The useful code is inside the transmission unit.
FamilyPowertrain (P)

Typical symptoms

Engine warning light on
Harsh shifts or gearbox in emergency mode
Gears locked out

Common causes

Fault stored in the transmission control unit
Worn-out gearbox oil
Worn clutches or solenoids
Faulty gearbox speed sensors

What to do

On its own this code says almost nothing: the transmission unit must be read, as it holds the real fault. Stopping at P0700 leads to replacing parts at random.

Frequently asked questions

What does code P0700 mean?

Transmission control system: MIL request. This is not a fault in itself: the transmission control unit is asking the dashboard to light the warning lamp because it has stored a fault of its own. The useful code is inside the transmission unit.

Can I keep driving with code P0700 active?

With caution: limp mode possible, have it checked soon

Common causes — P0700

Fault stored in the transmission control unit Worn-out gearbox oil Worn clutches or solenoids Faulty gearbox speed sensors

How do you fix code P0700?

On its own this code says almost nothing: the transmission unit must be read, as it holds the real fault. Stopping at P0700 leads to replacing parts at random.

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