P0763 — Shift Solenoid B Intermittent
Drivable short-term, but fix now to avoid damage.
What P0763 means
This code means the transmission control module detected an intermittent (on-and-off) electrical fault in shift solenoid B, which helps control gear changes. Because it comes and goes, it's often caused by loose or corroded connectors, chafed wiring, or a solenoid that's starting to fail. Diagnosis usually involves wiggle-testing the wiring, checking the connector, and replacing the solenoid if needed.
Common symptoms
- Check engine light is on, sometimes flickering on and off
- Occasional harsh or erratic shifts
- Transmission slips intermittently
- Brief moments stuck in one gear or limp mode
- Inconsistent or jerky acceleration
Common causes
- Loose or corroded electrical connector at the solenoid
- Chafed or intermittently shorted wiring
- Shift solenoid B beginning to fail
- Low or contaminated transmission fluid
- Intermittent fault in the transmission control module
Typical repair cost
$150 – $600
Varies by vehicle and root cause.
Frequently asked questions
Can I keep driving with a P0763 code?
Usually for short trips, yes, but the intermittent fault makes it unpredictable. The transmission could shift harshly or slip without warning, so get it checked soon rather than relying on it.
How much does it cost to fix a P0763 code?
Expect roughly $150 to $600. A connector or wiring repair can be inexpensive, while a solenoid replacement or fluid service adds to the cost.
Is a P0763 code serious?
It can be. Even an intermittent shift fault can drop you into limp mode unexpectedly and may turn into a constant failure if left unaddressed.
Why does the P0763 symptom come and go?
Intermittent codes usually stem from loose connections, chafed wiring, or a solenoid that only misbehaves under certain conditions like heat or vibration, so the symptoms appear and disappear.