P07A3

Transmission Friction Element A Stuck On

Q: Is it safe to drive with P07A3?

Not really. A friction element stuck on can make the transmission bind or slip and risks internal damage, especially under load. Drive as little as possible until it's inspected.

Q: Can I just clear P07A3?

It returns because a clutch or band is physically staying applied. Servicing the fluid and repairing the stuck element or its solenoid is what actually clears it.

Transmission Generic OBD-II Medium

What it means

P07A3 means a friction element inside the transmission — a clutch pack or band — is staying applied when it should release. If it can't let go, the transmission slips, holds a gear, or binds up, and the strain can cause internal damage. Common roots are low or contaminated fluid, a solenoid or valve body holding the element applied, or a worn element. It won't cause a no-start, but the car shouldn't be driven far until it's checked.

Medium

Can I keep driving? The transmission may slip, bind, or hold a gear and can be damaged if driven hard — drive as little as possible until it's inspected.

Real-world scan data

Seen in

scans in the past year

Found in

<0.1%

of scans

<0.1%

of scans that found faults

Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.

Common symptoms

What you'll notice

Transmission slips or jerks while shifting
Hesitates or won't accelerate normally
Stuck in a gear or hard to shift
Engine revs without a matching increase in speed
Burnt-smelling or leaking transmission fluid

Common causes

Most likely first

Low or contaminated transmission fluidLikely
Faulty solenoid holding the friction element appliedCommon
Sticking or worn valve bodyCommon
Worn or damaged friction element (clutch pack or band)Less often
Internal mechanical failure of the transmissionLess often

How to diagnose & fix

Work through it in order

Check the transmission fluid level and condition; replace if low, dark, or burnt.
Scan for companion solenoid codes and test the solenoids that apply this element.
Perform a fluid flush and filter replacement to clear debris.
Inspect and repair the valve body and any damaged wiring or connectors.
If the element itself is worn, internal repair or replacement is needed. Clear and re-test.

FAQ

Quick answers

Is it safe to drive with P07A3?+

Not really. A friction element stuck on can make the transmission bind or slip and risks internal damage, especially under load. Drive as little as possible until it's inspected.

Can I just clear P07A3?+

It returns because a clutch or band is physically staying applied. Servicing the fluid and repairing the stuck element or its solenoid is what actually clears it.

Read & clear P07A3 yourself

Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.

▶ Get it on Google Play

✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX