P0700 is an informational code telling you the transmission control module has detected a fault and stored its own specific trouble code. It does not pinpoint the exact problem but signals that a transmission-specific DTC exists and needs to be read with a full-system scanner.
P0700 is an informational code telling you the transmission control module has detected a fault and stored its own specific trouble code. It does not pinpoint the exact problem but signals that a transmission-specific DTC exists and needs to be read with a full-system scanner.
P0700 is a transmission-related diagnostic trouble code classified as high severity. When your vehicle's ECU detects this condition, it stores P0700 and illuminates the check engine light.
If your vehicle has triggered P0700, you may notice one or more of these symptoms:
Here are the most common causes of P0700, ranked by how likely they are to be the culprit:
No - address this immediately. P0700 indicates a transmission control fault. Continued driving risks further damage to the transmission. Reduce speed, avoid heavy acceleration, and have the vehicle diagnosed promptly.
Follow these steps to pinpoint the root cause of P0700:
Repair costs for P0700 vary depending on the root cause and your vehicle. Here are typical estimates:
Prices estimated as of March 2026. Costs vary by region, vehicle, and shop.
P0700 behaves differently depending on your vehicle. Select your car below for model-specific causes, known issues, and adjusted cost estimates:
These codes are often seen alongside P0700 or indicate related issues:
P0700 is a generic informational code telling you that the transmission control module has detected a fault. It does not describe the specific problem - you need a scanner that reads transmission codes to find the actual fault.
Driving is not recommended beyond reaching a garage. Continued driving with a transmission fault can cause severe and expensive damage. If the car enters limp mode, it is limiting operation to protect the transmission.
P0700 always accompanies another, more specific transmission code. It is the flag that tells the engine ECU a transmission fault exists. The companion code (like P0715, P0720, or P0741) identifies the actual problem.
Costs vary hugely depending on the underlying fault. A fluid change may cost 130-350 EUR, while solenoid or valve body repairs run 350-1200 EUR. Full transmission rebuilds can exceed 3000 EUR.
Not always. Sometimes it is triggered by low fluid, a software glitch, or a faulty sensor. However, because transmission damage can be very expensive, it should always be diagnosed promptly.
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