P2784 Code - Input/Turbine Speed Sensor 'A'/'B' Correlation
Quick Answer
The diagnostic trouble code P2784 refers to an Input/Turbine Speed Sensor 'A'/'B' Correlation issue. Common causes include Faulty input speed sensor, Faulty turbine speed sensor, Wiring or connection issues. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P2784 indicates Input/Turbine Speed Sensor 'A'/'B' Correlation.
- Common causes
- Common causes include Faulty input speed sensor, Faulty turbine speed sensor, Wiring or connection issues.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P2784 Description
The diagnostic trouble code P2784 refers to an Input/Turbine Speed Sensor 'A'/'B' Correlation issue. This code indicates that there is a discrepancy between the input and turbine speed sensors in the vehicle's transmission system. The input speed sensor measures the speed of the engine's crankshaft, while the turbine speed sensor measures the speed of the transmission input shaft. When these sensors are not in sync or are reading different speeds, it can lead to various performance issues in the vehicle.
Common Causes of P2784
- Faulty input speed sensor
- Faulty turbine speed sensor
- Wiring or connection issues
- Transmission control module (TCM) malfunction
- Mechanical issues in the transmission system
Symptoms of P2784
- Erratic or harsh shifting
- Transmission slipping
- Limp mode activation
- Check Engine Light illuminated
- Decreased fuel efficiency
How to Fix P2784
- Diagnose the issue by using a scan tool to check for trouble codes and perform a thorough inspection of the input and turbine speed sensors.
- Replace the faulty speed sensor(s) if they are found to be malfunctioning.
- Check and repair any wiring or connection issues related to the speed sensors.
- If the problem persists, inspect and potentially replace the TCM.
- Test drive the vehicle to ensure the issue has been resolved and clear the trouble codes from the system.
Cost to Fix P2784
The typical repair costs for addressing an Input/Turbine Speed Sensor 'A'/'B' Correlation issue can vary depending on the specific vehicle make and model, as well as the labor rates in different locations. On average, the parts for replacing a speed sensor can range from $50 to $200, while labor costs can be anywhere from $100 to $300. If the issue is related to the TCM or requires additional repairs, the total cost could be higher. It's advisable to consult with a trusted auto repair shop for a more accurate estimate based on your vehicle's specific needs.
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Code P2784 Information for Specific Makes
- P2784 Dodge — Input/Turbine Speed Sensor 'A'/'B' Correlation
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