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Engine-Codes – Generic – P0773

P0773 Code - Shift Solenoid 'E' Electrical

Quick Answer

The P0773 code indicates a problem with the Shift Solenoid 'E' in the transmission. Common causes include Faulty Shift Solenoid 'E', Electrical issues such as a short or open circuit in the wiring, Low transmission fluid level or contaminated fluid. 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
P0773 indicates Shift Solenoid 'E' Electrical.
Common causes
Common causes include Faulty Shift Solenoid 'E', Electrical issues such as a short or open circuit in the wiring, Low transmission fluid level or contaminated fluid.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code P0773 Description

The P0773 code indicates a problem with the Shift Solenoid 'E' in the transmission. This solenoid is responsible for controlling the flow of transmission fluid to engage or disengage a specific gear within the transmission. When the solenoid fails to operate properly, it can lead to issues with shifting gears smoothly, resulting in erratic or delayed gear changes. This can cause the vehicle to jerk or hesitate during acceleration, leading to a decrease in overall performance and fuel efficiency.

OBDII Code P0773 - Shift Solenoid 'E' Electrical
P0773 Code - Shift Solenoid 'E' Electrical

Common Causes of P0773

  1. Faulty Shift Solenoid 'E'
  2. Electrical issues such as a short or open circuit in the wiring
  3. Low transmission fluid level or contaminated fluid
  4. Mechanical issues within the transmission
  5. Software or programming issues in the transmission control module

Symptoms of P0773

  1. Erratic shifting behavior
  2. Delayed or harsh gear shifts
  3. Transmission slipping
  4. Decreased fuel efficiency
  5. Illumination of the Check Engine Light

How to Fix P0773

  1. Diagnose the issue by using a scan tool to retrieve the trouble code and perform a thorough inspection of the transmission system.
  2. Inspect the wiring and connections related to the Shift Solenoid 'E' for any signs of damage or corrosion.
  3. Test the Shift Solenoid 'E' for proper operation and replace it if necessary.
  4. Check and refill the transmission fluid to the correct level if low or contaminated.
  5. Clear the trouble code from the vehicle's computer system and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0773

The cost of repairing a Shift Solenoid 'E' electrical issue can vary depending on the specific make and model of the vehicle, as well as the labor rates in your area. On average, you can expect to pay between $200 and $500 for parts and labor. Keep in mind that diagnostic time and labor rates can fluctuate, so it's best to obtain quotes from local auto repair shops for a more accurate estimate.

When is the Code Detected?

The P0773 code is detected when the gear required by the ECM does not match the actual gear when vehicle is driven.

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Code P0773 Information for Specific Makes

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0773 Code

1. What does the OBDII code P0773 mean?

P0773 indicates an electrical issue with the shift solenoid 'E' circuit, which controls gear shifting in the automatic transmission.

2. What are the symptoms of a P0773 code?

Common symptoms include harsh or erratic shifting, the transmission stuck in one gear, poor fuel efficiency, and an illuminated Check Engine Light.

3. What causes the P0773 code?

Possible causes include a faulty shift solenoid 'E', damaged wiring or connectors, low or dirty transmission fluid, or a malfunctioning transmission control module (TCM).

4. Can I drive with a P0773 code?

Driving with a P0773 code is not recommended, as it can lead to further transmission damage and unpredictable shifting behavior.

5. How can I diagnose the P0773 code?

Start by checking the transmission fluid level and condition, then inspect the wiring and connectors related to shift solenoid 'E'. A scan tool may also help test the solenoid’s functionality.

6. How do I fix the P0773 code?

Repairs may involve replacing the faulty shift solenoid 'E', repairing damaged wiring, cleaning or replacing the transmission fluid, or reprogramming/updating the TCM.

7. How much does it cost to repair a P0773 code?

Repair costs vary but typically range from $150 to $400 for solenoid replacement, depending on labor rates and parts prices.

8. Can low transmission fluid cause a P0773 code?

Yes, low or dirty transmission fluid can affect solenoid operation and trigger the P0773 code.

9. Does a P0773 code always mean the solenoid is bad?

Not always. The issue could be with the wiring, connectors, or the TCM rather than the solenoid itself.

10. How can I prevent the P0773 code from recurring?

Regularly maintain the transmission by changing the fluid and filter as recommended by the manufacturer and inspecting the wiring for damage.

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