Is It Safe to Drive With a P0700 Code?
Common Symptoms of a P0700 Fault
Transmission warning light
Harsh gear changes
Limp mode
Possible Causes of P0700
A P0700 code can be triggered by faults across several systems. Identifying the exact root cause requires proper diagnostic equipment and live data — not just reading the code.
Transmission Fault
Further codes indicate specific system.
Why we don't list the exact part: A P0700 code tells you what's happening but not why. Replacing parts based on the code alone is the most common way drivers waste money. A proper diagnosis identifies the specific cause first.
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P0700 and Your MOT
A stored P0700 fault code will cause your car to fail its MOT. The engine management light will be illuminated during the test — an automatic failure under current MOT standards. Even if the light temporarily clears, the code remains in ECU memory and can be read by testers.
Get the fault diagnosed and repaired first, then have the code cleared and confirm the light stays off before booking your MOT.