P0700 — Transmission control system — malfunction
Reference detail for fault code P0700 on the DQ500 DSG transmission family.
What P0700 indicates
The DQ500 transmission control unit stores P0700 when it detects the following condition: Transmission control system — malfunction. A general transmission control fault: the control unit has detected a malfunction in the transmission system that is not tied to one specific component. Codes stored at the same time usually point to the actual cause. A stored code does not by itself prove that a part has failed. Before replacing anything, check the live data, wiring, connectors, power supply and fluid condition, and confirm the fault on the vehicle.
Symptoms
- Emergency mode
- Harsh or missing shifts
- Transmission warning light
Possible causes
- Faults stored in other categories at the same time
- Power supply or wiring problem
- Mechatronic unit fault
Related components
Transmission control unit (TCU) · Mechatronic unit
| Fault code | P0700 |
|---|---|
| Transmission | DQ500 (7-speed wet DSG) |
| Factory code | 0BH/0BT |
| Category | Transmission control |
| Status | Documented — review advised |
This code is documented but not independently confirmed. Confirm it against the specific vehicle before ordering any part.
Have this code on your vehicle?
Send us the code and the vehicle details and we will confirm the correct unit or part by email.
Related pages for the DQ500
DQ500 repair
Symptoms, mechatronic issues and what repair involves for this family.
DQ500 mechatronics
Replacement mechatronic unit and exchange options for this family.
DQ500 parts
Selected parts most often involved in repair for this family.
DQ500 fault codes
Every documented code for this family in one table.
Have a fault code to check?
Send us the code and the vehicle details and we will confirm the correct unit or part by email.