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P0701 is a diagnostic trouble code (DTC) for "Transmission Control System Range/Performance". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.
A P0701 trouble code indicates that the Powertrain Control Module (PCM) has detected a malfunction in the automatic control system. In addition to some models of vehicles placing the transmission into Limp-in mode, this code can be triggered by a selection of different transmission failure codes, including P0700, P0702, and other related trouble codes.
When a P0701 trouble code is stored, the transmission control system has detected an abnormality in the readings from one or more sensors. This code can also derive from a malfunction with a solenoid or switch, or any malfunction with a specific transmission component or the transmission system itself.
Some of the more common causes of a stored P0701 trouble code include failure of the torque converter clutch, shift solenoid, or other transmission component. A low fluid condition is another cause of this type of code, most likely the result of a transmission leak. Faulty sensors, switches, and defective wiring and connectors are some other likely causes.
The symptoms of a P0701 trouble code include total transmission failure in a worst-case scenario, or, in some cases, there are no symptoms at all. Some common symptoms include the check engine light illuminating and shifting, slipping, and overheating of the transmission. Engine stalling and difficulty shifting are some other common issues arising when a P0701 trouble code is stored.
To diagnose a P0701 trouble code, a mechanic needs access to a manufacturer's wiring schematic for the vehicle they are diagnosing, a digital volt/ohmmeter, and an advanced scanner or OBD-II code reader. To diagnose a P0701 trouble code, a mechanic needs to:
A common mistake that many mechanics make when diagnosing and repairing a P0701 trouble code is to completely rebuild the transmission when a less expensive part replacement would have fixed the problem. As part of the rebuild process, many mechanics also replace the torque converter, making the repair even more expensive.
The seriousness of a P0701 trouble code depends on the cause of the problem. If the code is stored due to damage from a low fluid condition, a mechanic might have to rebuild the transmission if the damage is extensive enough. A faulty sensor, switch, or solenoid can trigger the storage of a P0701 trouble code, and the driver can continue to drive the vehicle without fear of any major damage, though failed sensors, switches, and solenoids can cause a slippage, rough shifting, or other problems in a vehicle transmission.
To repair and clear a P0701 trouble code, a mechanic should perform the following steps:
This type of code only applies to vehicles with automatic transmissions. If a P0701 trouble code is stored on the PCM of a vehicle with a manual transmission, the mechanic should suspect a faulty PCM.
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