Code P0776, Transmission will not shift into second gear?
2004 LEXUS ES 330
170,654 MILES • 3.3L • V6 • 2WD • AUTOMATIC
OTTUN
MEMBER
1 POST
The transmission won't go to second gear and when I used a scan tool, I saw code p0776 solenoid B problem.
Jun 12, 2025 at 12:07 AM
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JACOBANDNICKOLAS
✓ASE Certified Mechanic
110,194 POSTS
Hi,
The code is specific to an issue with pressure control solenoid B (Shift solenoid valve SL2), which is related to the second gear.
The issue may simply be the solenoid, or it could be other things such as a torque converter clutch issue, a problem within the transmission's valve body, and so on.
We need to diagnose the issue before throwing parts at it. If you look below, I have attached the diagnostics and other information related to the issue. Take a look through them and let me know if you are comfortable performing them.
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