Shift Solenoid ‘E’ Malfunction
Table of contents
P0770 LEXUS Possible Causes
- 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 do I fix code P0770 LEXUS?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the P0770 LEXUS code
The cost of diagnosing the P0770 LEXUS code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
When is the code detected
The P0770 code is detected when Lock up does not occur when driving in the lock up range (normal driving at 80 km/h [50 mph]), or lock up remains ON in the lock up OFF range.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Transmission will not shift gears.
P0770 LEXUS Description
The ECM uses the signals from the Throttle Position Sensor and Air flow Meter to monitor the engagement condition of the lock up clutch. Then the ECM compares the engagement condition of the lock up clutch with the lock up schedule in the ECM memory to detect mechanical trouble of the shift solenoid valve SLU, valve body, torque converter clutch and automatic transmission assembly