Which Codes Will This Page Cover?
- P0700 Transmission Control System (MIL Request)
- P0701 Transmission Control System Range/Performance
- P0702 Transmission Control System Electrical
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What Is the P0700 Code?
Symptoms
Causes
Seriousness
Can I Still Drive?
Diagnose
Difficulty of Inspecting
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Error Code P0700 is indicative of an issue regarding a vehicle’s transmission. The letter P specifies an issue with a vehicle’s powertrain. The second numeral of this DTC sequence (0) specifies a generic code that applies to all makes and models of vehicles. The third numeral of this sequence (7) indicates an issue with a vehicle’s transmission. These issues often result in the display of other similar error codes including P0701 and P0702. Such proximate issues are best resolved quickly before they result in serious damage.
More About Error Code P0700
Error code P0700 signifies that a malfunction has been detected in your vehicle’s transmission controls. Most modern automobiles feature a specific control module as it relates to the vehicle’s automatic transmission. This module is known as the Transmission Control Module (TCM).
A vehicle’s TCM monitors the sensors of the transmission system. These sensors send important data to the engine control module (ECM). If there are any problems detected when the ECM reads this information, a P0700-P0702 error code will be triggered. Solutions for this issue could be as simple as changing your transmission fluid. But, in some cases, repairs may be as complex as overhauling your transmission.
What Are the Symptoms of a P0700 Code?
The most common symptom that drivers notice is the illumination of their vehicle’s check engine light. If their car is equipped with a fail-safe mode, that will be activated as well. The failsafe mode is a feature of the car’s computer that minimizes or prevents serious damage or injury by altering transmission shift, the engine’s RPM, or engine load conditions. Additional symptoms of the P0700 code include vehicle hesitation, issues when changing gears, stalling, rough driving, or a noticeable reduction in gas mileage. It should also be noted that a P0700 error code is broad in scope, so determining which other P07XX codes are present will help to better identify and isolate the issue.
What Are Some Causes of a P0700 Code?
Several problems may result in the appearance of a P0700 code or any code similar in designation. In many cases, there is a defect with the shift solenoid. Occasionally, a short or open circuit within the TCM or the engine coolant sensor is causing problems and impeding efficient/normal operation.
Other causes may include a faulty TCM. In rare cases, the powertrain control module (PCM) could also be faulty. The PCM monitors and maintains all signals sent from various sensors about your engine’s powertrain.
How Serious Is the P0700 Code?
The P0700, P0701, and P0702 error codes should always be taken seriously. These codes often result in symptoms that prevent your vehicle from shifting gears properly. Your vehicle may also stall drive rough in most cases. Overall, these codes are extremely serious.
Can I Still Drive with a P0700 Code?
The P0700 indicates a serious problem with your vehicle that could prevent your car from adequately changing gears. This makes the vehicle dangerous to drive. It is recommended that you do not operate your vehicle and have it inspected and repaired by a qualified mechanic as soon as possible.
How Easy Is It to Diagnose a P0700 Code?
The main mistake that one should avoid is diagnosing a P0700 error code based on the vehicle’s symptoms instead of what the code indicates. All drivability issues related to a P0700 error code are often misinterpreted as engine misfires. It is best to rely on a professional mechanic for an accurate diagnosis.
How Difficult Is It to Inspect a P0700 Code?
It’s still advised that all repairs are done safely by a professional mechanic.
First, a mechanic will replace any damaged wires discovered during diagnosis. Additionally, they will be sure to check that all connections are secure. The mechanic will then locate the source of any transmission fluid leaks and replace components if necessary. After that, a mechanic will drain your transmission fluid and remove or replace the filter. If the mechanic notices debris in the filter or the old transmission fluid, they will recommend flushing your system and adding fresh transmission fluid. Finally, a mechanic will replace your transmission’s shift solenoid if it is damaged or dirty.
Once the mechanic is finished, they will clear all OBD-II codes and take the car for a test drive. If the code returns, you could have more severe electrical issues with your vehicle.
Need Additional Help with Your P0700 Code?
If you are experiencing a P0700 error code, you should consult with a technician as soon as possible to determine the exact cause. If you need assistance finding a professional mechanic, check out our list of local service centers in your area.
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