Transmission control system, MIL request. Seen in 7 real diagnostics across 2 workshops.
What the code tells you on its own
- System. Powertrain. Engine, fuel, air, ignition, emissions and transmission. The overwhelming majority of what workshops bring to the AI.
- Functional group. Transmission
- Subsystem. Transmission and drivetrain
What we see when P0700 turns up
Measured across the diagnostics run through Wrenchlane by independent workshops, not taken from a reference table. Sightings span May 2026 to August 2026.
- 7 diagnostics carried this code.
- 2 separate workshops met it, so this is not one shop seeing the same fault repeatedly.
- 0% of the time it arrived with no symptom description at all, meaning the technician had nothing but the code to work from.
- Most often on Chevrolet, which is where we have seen it most rather than a claim about the fleet at large.
What P0700 usually turns up with
The multiplier is how much more often the two appear together than chance would predict, so a high number means the pair is telling you something a single code is not. Codes rarely arrive alone, and reading the set is usually faster than chasing the first one on the list.
- C0561, not individually documented. Seen together 6 times, 218.6x more often than chance.
- C0899, not individually documented. Seen together 6 times, 218.6x more often than chance.
- P0751, Shift solenoid A performance or stuck off. Seen together 6 times, 218.6x more often than chance.
- P0420, Catalyst system efficiency below threshold, bank 1. Seen together 4 times, 28.2x more often than chance.
What this page does not tell you
A code names a symptom the car noticed, not the part that failed. P0700 on one vehicle and the same code on another can have different causes, and the counts above describe what independent workshops brought to us rather than how common the fault is across all cars. Getting from the code to the cause needs the vehicle: its make, model, engine and what it is actually doing.
Run P0700 against the car in front of you. Enter the code and the symptoms and get ranked probable causes for that specific vehicle, with the checks in the order worth doing them. Free account, no card.
Other transmission codes
- P0751, Shift solenoid A performance or stuck off
- P0741, Torque converter clutch circuit performance or stuck off
- P0715, Input or turbine speed sensor A circuit
- P0743, Torque converter clutch circuit electrical
- P2762, Torque converter clutch pressure control solenoid circuit range/performance
- P0702, Transmission control system electrical