P0773 — Shift Solenoid D Intermittent
Drivable short-term, but fix now to avoid damage.
What P0773 means
This code means the transmission computer detected an intermittent or unstable signal from shift solenoid D, meaning the fault comes and goes rather than staying constant. It usually points to a loose connector, chafed wiring, or a solenoid that's beginning to fail. It's commonly fixed by tracing and repairing the wiring or replacing the solenoid, and intermittent faults are often resolved without major transmission work.
Common symptoms
- Check engine light that may come and go
- Occasional harsh or delayed shifts
- Intermittent slipping or limp mode
- Inconsistent transmission behavior
- Sporadic drop in fuel economy
Common causes
- Loose or corroded solenoid connector
- Chafed or intermittently shorting wiring
- Shift solenoid D beginning to fail
- Dirty transmission fluid affecting the solenoid
- Intermittent fault in the transmission control module
Typical repair cost
$200 – $750
Varies by vehicle and root cause.
Frequently asked questions
Can I keep driving with a P0773 code?
Often yes for a short while, but it's unpredictable. The transmission may behave normally then suddenly shift poorly or limp, so have it diagnosed soon rather than counting on it.
How much does it cost to fix a P0773 code?
Repairs usually fall between about $200 and $750. Finding an intermittent wiring fault can take diagnostic time, while a solenoid replacement adds to the parts cost.
Is a P0773 code serious?
It can be. Even though the issue comes and goes, it can lead to sudden limp mode and signals a developing problem, so it's best to address it before it becomes constant.
Why is P0773 harder to diagnose?
Because the fault is intermittent, it may not be present when the car is in the shop. Technicians often need to wiggle-test wiring and connectors or monitor live data to catch it.