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Home / Codes / P0764
DTC code page

P0764: Shift Solenoid C Intermittent

Quick answer: The shift-solenoid C control path loses stability and works only part of the time.

Drivers also search this fault as shift solenoid C intermittent, P0764 intermittent code, solenoid C cuts in and out.

Severity: high Family: powertrain Related paths: 10
Meaning

What P0764 usually means

P0764 is the natural next page after P0760 through P0763 because it finishes the C-side family with the intermittent branch that owners regularly search when the transmission seems random. The gearbox may behave normally on one drive, then refuse an upshift, hit hard, or fall into limp mode once heat, vibration, or connector movement changes the state of the circuit. That makes P0764 graph-efficient and diagnostically honest: the problem may still be the C solenoid, but it may also be the connector, internal harness, or a sticky hydraulic path that only reveals itself under repeatable conditions.

Fast triage

Start here before chasing parts

  • Scan first: save freeze-frame and pending codes before clearing anything.
  • Confirm the complaint: compare the stored code with current drivability symptoms.
  • Use context: trims, live data, and related codes usually narrow the fault faster than guesswork.
  • Work simplest to hardest: leaks, connectors, maintenance items, and known patterns before expensive components.
Initial checks

What to check first

  • Match the code to when the complaint happens: hot, on bumps, after a long drive, or only intermittently in traffic.
  • Capture live data before clearing the code because intermittent faults hide quickly after a short reset.
  • Inspect accessible connector and harness sections before assuming the problem is deep inside the unit.
Driving risk

Can you keep driving?

P0764 can make shifting unpredictable and can trigger harsh events or backup strategy without warning. Limit driving until the intermittent C-path fault is reproduced and repaired.

High urgency: If symptoms are active, reduce driving and diagnose quickly before secondary damage builds.
Likely causes

Common causes behind this code

  • Shift solenoid C failing intermittently with heat or vibration
  • Connector or pin-fit problem affecting the C circuit
  • Harness damage that opens only under movement or temperature change
  • Internal harness, pass-through, or integrated-solenoid issue
  • Valve-body sticking that appears only once the fluid and unit are hot

Cause phrases often tied to this code: intermittent shift solenoid C, solenoid C connector issue, heat-related C solenoid failure, internal harness intermittent, P0764 transmission fault.

Diagnostic order

Suggested workflow

  1. Review freeze-frame and note gear, speed, and temperature when the fault set.
  2. Road-test with live data long enough to reproduce the intermittent C-side failure.
  3. Wiggle-test the connector and harness while watching for a return fault or data dropout.
  4. If the electrical side stays stable, inspect fluid condition and valve-body behavior for a temperature-sensitive hydraulic issue.
  5. After repair, verify the transmission completes normal shifts through the same conditions that used to trigger P0764.
Avoid guesswork

Common mistakes

  • Clearing the code and calling it fixed because the transmission behaves during one short drive.
  • Ignoring heat and vibration as triggers on an intermittent code.
  • Replacing multiple solenoids at once without proving whether only the C path loses stability.
Repair path

Practical fix guidance

  • Use P0764 to hunt for instability, not just failure: identify what changes when the unit warms up or the harness moves.
  • Repair proven connector or harness weakness before moving into deeper transmission parts.
  • Finish with a verification drive that repeats the old failure conditions, not just a cold lap around the block.
Vehicle context

Affected brands in this MVP

Brand hubs help broaden internal linking now and can evolve into make-specific diagnostic notes later.

Aliases and common searches

English phrases tied to P0764

Useful when the driver knows the wording but not the exact DTC yet.

  • shift solenoid C intermittent
  • P0764 intermittent code
  • solenoid C cuts in and out
Related search intent

Queries this page can answer naturally

  • P0764 code meaning
  • what does P0764 mean
  • shift solenoid C intermittent symptoms
  • P0764 transmission code
FAQ

Quick questions about P0764

How is P0764 different from P0763?

P0763 is the explicit electrical fault page, while P0764 says the C-side fault is intermittent rather than constant.

Can vibration cause P0764?

Yes. Harness movement and poor pin fit can make the C command drop in and out with vibration.

Does P0764 automatically mean the solenoid is bad?

No. Connector, harness, valve-body, and integrated internal wiring issues can all create an intermittent C-path problem.