P0770 - OBD Trouble Code

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Have you ever seen your shift solenoid malfunctioning? What is OBD error code P0770 and what are its causes and symptoms? The error code is related to the automatic transmission of vehicle which controls the lock up mechanism. It creates a one-to-one ratio for transmission speeds by controlling the hydraulic pressure. Lock up usually takes place so as to increase the highway fuel economy.

The main use of a torque converter lockup clutch is to form a 1 to 1 RPM ratio between the transmission input shaft and the torque converters rotational speed, so a mechanical lock can be set up between the engine and transmission. It will remove the loss of power which occurs within the fluid/ hydraulic lock that you may face with a conventional torque converter. The lock-up converter permits the engine to function with minimal speed and load, so that the entire output of consumption and emission will be decreased.

What causes this problem with the Shift Solenoid E Malfunction?

• Deficient fluid level.
• Muddy or polluted fluid.
• Muddy or blocked transmission filter.
• Faulty transmission valve body.
• Limited hydraulic passages.
• Internal faults in the transmission.
• Defective shift solenoid.
• Rusted or injured connector.
• Defective wiring.
• Broken PCM.

1. Shift Solenoid - A damaged or broken shift solenoid needs to be fixed soon so as to avoid this error code.
2. Shift Valves - Is this component damaged? Looking for the right replacement? Get them at Parts Avatar at the best prices online.
3. Engine Light - See if the engine light is defective or damaged. If not, the engine light needs to be repaired immediately.
4. Transmission Filter - Check the transmission filter for blockages or murky waste. Clean them instantly.
5. Transmission Valve Body - If this component produced unusual noses or slips during gear shifts then it is better to get the replaced soon.
6. Connector - Check the terminals of the connectors for damages or faults. If they are broken or damaged fix them as soon as possible.
7. Powertrain Control Module - A faulty PCM has to be immediately replaced so as to avoid this generic trouble code.

Interested to know the symptoms to OBD code P0770? If yes, then you have arrived at the right place. We at Parts Avatar have listed out few common symptoms associated with Shift Solenoid E Malfunction.

Common Symptoms

• Transmission gliding.
• Burning of the transmission.
• Reduced fuel economy.
• Possible symptoms of misfire.
• Vehicle reaches limp mode.
• Check Engine Light well-lit.

Have a look at some ways with which you can correct the P0770 code:

• Replacement of fluid and filter.
• Correcting the faulty shift solenoid.
• Repairing the defective transmission valve body.
• Repairing the defective transmission.
• Flushing the transmission to clean passages.
• Dusting erosion from connectors.
• Repairing the wires.
• Replacement of PCM.

There is no need to worry if your OBD Code is still flashing up as we are here at your service. Have a look at our superior variety of engine light, shift valves, connector, PCM and many more. Now all your problems would vanish within no time.

Here are some steps which you should follow in order to diagnose this P0770 fault code:

• Before you begin the troubleshoot process, check for the right Technical Service Bulletins (TSBs) for your vehicle by year, model and transmission. This can help you to save time by guiding in the right direction. You can also check for records of the vehicle to see when the filter and fluid was last changed.
• Fluid & Wiring Inspections: Initially check for the right level of fluid and inspect them for its condition. Now, you have to thoroughly check the wires for damages like scraping, rubbing, bare wires, or burn spots. Secondly, you have to inspect the connectors and its connections for safety, erosion and broken pins including the wires, connection to solenoids, PCM and transmission pump. You have to check the transmission linkage, for safety and required issues based on configuration.
• Advanced Steps: The advanced step for each vehicle varies and needs proper tools to perform correctly. The process needs a digital multimeter and particular technical references for your vehicle. Requirement of voltage will vary based on specific models of your vehicle. So, it’s good to follow specific troubleshooting chart.
• Continuity Checks: You have to check for continuity by removing power and the readings should be set to 0 ohms or as specified by the vehicle. If there is no resistance or continuity, then it indicates that the wires are faulty or there is open or shorted wire which needs replacement.

Common Mistakes When Diagnosing the P0770 Code

• Faulty torque converter lockup solenoid.
• Damaged engine coolant temperature sensor.
• Broken torque converter clutch.
• Defective valve body.
• Muddy transmission fluid which blocks hydraulic passages.