P0764
System
Powertrain (Transmission)
Scanner required
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Shift Solenoid D Stuck Off

Understand P0764, common causes, and the right SEAFLO pump to diagnose it.

Shift solenoid D stuck off — gear apply/release for the D-controlled clutch pack affected.

Common symptoms

  • Missed shifts
  • Trans limp mode
  • Flare between gears

Typical causes

  • Failed shift solenoid D
  • Burnt ATF varnish in valve body
  • Wiring at transmission connector

What scanner do you need?

Full-system scanner (engine, ABS, SRS, transmission, service resets)

Use live data and freeze frame to confirm the fault before replacing parts. ABS, SRS, and network U-codes usually require a full-system scanner.

Diagnostic tips

  • Record freeze frame data when the code first sets
  • Clear the code only after fixing the root cause
  • Check for related pending codes that point to a common issue
  • Verify battery voltage is above 12.4V before chasing sensor codes

Frequently asked questions

Can I diagnose P0764 with a basic code reader?
P0764 may set in the engine module, but related diagnostics often benefit from an enhanced or full-system scanner with live data and freeze frame.
Is it safe to drive with P0764?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.