What Does the P2790 Code Mean?
The P2790 code indicates an issue with the Gate Select Direction Circuit, which is monitored by the Powertrain Control Module (PCM). This trouble code typically arises in vehicles equipped with a manual transmission, where a sensor in the shift lever communicates the current gear position to the PCM.
What Causes the P2790 Code?
Several factors can trigger the P2790 code, including:
- Failure of the Powertrain Control Module (PCM)
- Defective shift lever assembly
- Wiring issues, such as shorts or open circuits
What Are the Symptoms of the P2790 Code?
When the P2790 code is present, you may notice symptoms such as:
- Inability to shift gears smoothly
- Engine performance issues
- Potential illumination of the check engine light
- Unusual noises during gear shifting
How Serious Is the P2790 Code?
The P2790 code is categorized as urgent. Immediate action is necessary as it indicates a significant malfunction that can lead to severe vehicle damage or endanger the safety of the driver and passengers. Ignoring this code may result in costly repairs down the line.
How to Diagnose the P2790 Code
To accurately diagnose the P2790 code, follow these steps:
- Use an OBD-II scanner to confirm the presence of the P2790 code.
- Inspect the shift lever assembly and associated wiring for signs of damage or disconnection.
- Test the Shift Lever Position Sensor for proper operation.
- Check the PCM for faults or failures.
Common Repairs for the P2790 Code
Common repairs associated with the P2790 code may include:
- Replacing the Shift Lever Position Sensor
- Repairing or replacing damaged wiring
- Replacing the shift lever assembly
- Reprogramming or replacing the PCM
How Much Does It Cost to Fix the P2790 Code?
The cost of fixing the P2790 code can vary significantly based on the specific issue. On average, repairs may range from $100 to $1,000, depending on whether it involves a simple wiring fix or a more complex PCM replacement.
Can I Fix the P2790 Code Myself?
If you have experience with automotive repairs, you might be able to address some issues related to the P2790 code, such as checking wiring or replacing the Shift Lever Position Sensor. However, if the problem involves the PCM or if you’re unsure, it’s advisable to consult with a professional mechanic to avoid further complications.
