AutoCodes – Generic – P0770

P0770 Code - Shift Solenoid 'E' Malfunction

Quick Answer

Shift solenoid valve 'E' is turned ON or OFF by the Transmission Control Module (TCM) in response to signals sent from the park/neutral position (PNP) switch, vehicle speed and Engine Control Module (ECM) (throttle opening). Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty shift solenoid 'E' valve. 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: P0770 indicates Shift Solenoid 'E' Malfunction.
Common causes: Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty shift solenoid 'E' valve.
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 Popularity 36,108

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 08, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0770 Description

OBDII Code P0770 - Shift Solenoid 'E' Malfunction - AutoCodes.com — P0770 Code - Shift Solenoid 'E' Malfunction

What does this mean?

What are the Possible Causes of the DTC P0770?

Low transmission fluid level
Dirty transmission fluid
Faulty shift solenoid 'E' valve
Shift solenoid 'E' valve harness is open or shorted
Shift solenoid 'E' valve circuit poor electrical connection

How to Fix the DTC P0770?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0770 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0770 code?

Need more information on how to fix the P0770 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0770 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P0770 Chrysler — 4C Solenoid Circuit
P0770 Dodge — 4C Solenoid Circuit
P0770 Hyundai — Reduction Solenoid Valve System Fault
P0770 Infiniti — Shift Solenoid Valve 'E' Malfunction
P0770 Jeep — 4C Solenoid Circuit
P0770 KIA — Reduction Solenoid Valve System Fault
P0770 Lexus — Shift Solenoid 'E' Malfunction
P0770 Mercedes-Benz — Shift Solenoid 'E' Malfunction
P0770 Mitsubishi — 4C Solenoid Circuit
P0770 Nissan — Shift Solenoid Valve 'E' Malfunction
P0770 Toyota — Shift Solenoid 'E' Malfunction

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 P0770 Code

1. What are some common symptoms of OBDII code P0770 (Shift Solenoid 'E' Malfunction)?

- Common symptoms include harsh or delayed shifting, erratic transmission behavior, and illuminated "Check Engine" light.

2. What causes the OBDII code P0770 to be triggered?

- The code is typically triggered by a malfunction in Shift Solenoid 'E', which controls the flow of transmission fluid to engage or disengage certain gears.

3. Can a dirty transmission fluid cause the Shift Solenoid 'E' malfunction?

- Yes, contaminated or dirty transmission fluid can lead to solenoid issues, causing the P0770 code to appear.

4. How can I diagnose the Shift Solenoid 'E' malfunction?

- Diagnosing the issue involves performing a thorough inspection of the solenoid, checking the wiring connections, and using a scan tool to read the trouble codes.

5. What are the repair options for OBDII code P0770?

- Repair options may include replacing the Shift Solenoid 'E', repairing damaged wiring, or flushing and replacing the transmission fluid.

6. Is it safe to continue driving with OBDII code P0770 present?

- It is not recommended to drive with the P0770 code active, as it can lead to further transmission damage and potentially unsafe driving conditions.

7. Can I reset the code myself after fixing the Shift Solenoid 'E' issue?

- Yes, once the underlying issue causing the code has been resolved, the code can be cleared using an OBDII scanner or by disconnecting the battery for a few minutes.

8. Are there any preventive maintenance steps to avoid OBDII code P0770?

- Regular transmission fluid changes, keeping the transmission system well-maintained, and addressing any symptoms promptly can help prevent the occurrence of the P0770 code.

9. What is the typical cost to repair the Shift Solenoid 'E' malfunction triggering OBDII code P0770?

- The cost of repair can vary depending on the extent of the damage and the specific components needing replacement, but it may range from $200 to $500 on average.

10. Can a DIY enthusiast with moderate automotive knowledge fix the Shift Solenoid 'E' issue causing OBDII code P0770?

- While some DIY enthusiasts may be able to tackle this repair, it is recommended to have a professional mechanic diagnose and fix the issue to ensure proper repair and prevent further damage.