P0747

Pressure Control Solenoid A Stuck On

Q: Is it safe to drive with P0747?

Short trips are usually fine, but stuck-high line pressure causes harsh shifts and extra heat that can wear the transmission over time. Get it addressed promptly.

Q: Can I just clear P0747?

It will clear, but returns once the transmission relearns pressure unless the stuck solenoid, wiring, or fluid problem is fixed.

Transmission / pressure control Generic OBD-II Medium

What it means

P0747 means the transmission's pressure control solenoid "A" is stuck in the applied (on) position, so the module can no longer regulate hydraulic line pressure. The result is usually harsh or firm shifts, holding gears too long, and extra heat — which can shorten transmission life if left unaddressed.

Medium

Can I keep driving? Usually drivable, but shifts may be harsh or the transmission may drop into limp mode — drive gently and get it fixed soon to avoid heat damage.

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

Harsh, firm, or delayed shifts
Transmission slipping or holding a gear too long
Check-engine light on
Transmission running hot
Limp mode (stuck in one gear)

Common causes

Most likely first

Failed or mechanically stuck pressure control solenoid ALikely
Damaged wiring or a poor connector at the solenoid circuitCommon
Low or dirty transmission fluid affecting line pressureCommon
Debris or wear in the valve body holding the solenoid openLess often
Failed transmission control module (TCM)Less often

How to diagnose & fix

Work through it in order

Scan for codes and read freeze-frame data to confirm the fault and conditions.
Check transmission fluid level and condition first — low or burnt fluid alone can trigger this.
Inspect the solenoid wiring and connector for damage, corrosion, or loose pins.
Test the pressure control solenoid's resistance and operation against spec.
If the solenoid and wiring are good, inspect the valve body; replace the TCM only as a last resort. Clear and re-test.

FAQ

Quick answers

Is it safe to drive with P0747?+

Short trips are usually fine, but stuck-high line pressure causes harsh shifts and extra heat that can wear the transmission over time. Get it addressed promptly.

Can I just clear P0747?+

It will clear, but returns once the transmission relearns pressure unless the stuck solenoid, wiring, or fluid problem is fixed.

Read & clear P0747 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