How to Fix P0777 Shift Solenoid E Electrical

Introduction

If you’re experiencing issues with your car’s transmission, specifically the P0777 Shift Solenoid E Electrical code, you’re not alone. This code indicates that there is an issue with the electrical circuit of the shift solenoid E, which can cause problems with shifting gears. Fortunately, this is a problem that can be fixed with a little bit of know-how and some basic tools. In this article, we’ll walk you through the steps to fix the P0777 Shift Solenoid E Electrical code.

Step 1: Diagnose the Problem

Before you can fix the problem, you need to diagnose it. The P0777 code can be caused by a number of issues, including a faulty shift solenoid, a damaged wiring harness, or a bad transmission control module. To diagnose the problem, you’ll need an OBD-II scanner. Connect the scanner to your car’s OBD-II port and read the codes. If you see the P0777 code, you know that there is an issue with the shift solenoid E electrical circuit.

Step 2: Replace the Shift Solenoid

The most common cause of the P0777 code is a faulty shift solenoid. To replace the shift solenoid, you’ll need to locate it on your transmission. The shift solenoid is typically located on the valve body, which is located inside the transmission. You’ll need to remove the transmission pan to access the valve body. Once you’ve located the shift solenoid, remove it from the valve body and replace it with a new one. Be sure to use the correct replacement part for your specific make and model of car.

Step 3: Check the Wiring Harness

If replacing the shift solenoid doesn’t fix the problem, the issue may be with the wiring harness. Check the wiring harness for any damage or corrosion. If you find any damage, replace the wiring harness. If the wiring harness looks fine, use a multimeter to check for continuity between the shift solenoid and the transmission control module. If there is no continuity, there may be a break in the wiring somewhere between the shift solenoid and the transmission control module.

Step 4: Replace the Transmission Control Module

If the wiring harness is fine and there is continuity between the shift solenoid and the transmission control module, the issue may be with the transmission control module itself. The transmission control module is responsible for controlling the transmission’s shifting. If it’s not functioning properly, it can cause issues with shifting gears. To replace the transmission control module, you’ll need to locate it on your car. It’s typically located under the dashboard on the driver’s side. Once you’ve located it, remove it and replace it with a new one.

Conclusion

Fixing the P0777 Shift Solenoid E Electrical code may seem daunting, but with a little bit of know-how and some basic tools, it’s a problem that can be fixed. By following the steps outlined in this article, you can diagnose and fix the issue, getting your car back on the road in no time.

FAQs

1. Can I drive my car with the P0777 code?

It’s not recommended to drive your car with the P0777 code. This code indicates that there is an issue with the shift solenoid E electrical circuit, which can cause problems with shifting gears. Driving your car with this issue can cause further damage to your transmission.

2. How much does it cost to fix the P0777 code?

The cost to fix the P0777 code can vary depending on the cause of the issue. If the issue is with the shift solenoid, the cost to replace it can range from $150 to $400. If the issue is with the wiring harness or the transmission control module, the cost can be higher.

3. Can I fix the P0777 code myself?

If you have some basic knowledge of car mechanics and the right tools, you can fix the P0777 code yourself. However, if you’re not comfortable working on your car’s transmission, it’s best to take it to a professional mechanic.