P0752 code: Shift Solenoid A Stuck On
P0752 means shift Solenoid A Stuck On. The code says where to look, not what failed — the fix depends on which cause your car actually has.
What P0752 means
P0752 is the mirror of P0751: shift solenoid A is stuck in the applied state — the computer commands it off and the hydraulics stay on. A solenoid stuck on forces the transmission into whichever gears that solenoid's 'on' state selects, so the classic symptoms are starting out in too high a gear (a sluggish, bogging launch), being locked out of other gears, or harsh engagements as the transmission fights its own hydraulics. Causes mirror the stuck-off case with one addition: besides debris and varnish jamming the plunger (fluid condition, again, is the first check), a wiring short that keeps the circuit energized can also hold a solenoid on, so the electrical side still gets tested. Which exact gears misbehave depends on your transmission's shift logic.
P0752 symptoms
- Sluggish, bogging launch as if starting in too high a gear
- Locked out of certain gears
- Harsh shifts or engagement
- Limp mode
- Check-engine light
What it costs to fix P0752
Typical range: $80–$600 · about ~0.5–3 hrs of labor
| If the cause is… | Part | Labor |
|---|---|---|
| Shift solenoid A | $30–$150 | ~0.5–3 hrs |
| Wiring / connector repair | $10–$120 | ~0.5–1.5 hrs |
Same economics as the other solenoid codes: cheap part, labor set by access — under an hour if the solenoid sits inside the pan, several hours if the valve body must come out. A shorted harness is a cheaper fix than a solenoid on some vehicles, which is why testing precedes parts.
The price swings on which cause it turns out to be — so confirm the cause before paying. Diagnose P0752 for my exact vehicle →
How to fix P0752
Moderate — doable at home with common tools and patience
- Confirm the high-gear launch, then check the fluid
Note whether the car pulls away sluggishly as if starting in a higher gear, especially when cold. Then check level and condition by the manufacturer's procedure; varnished or particle-laden fluid explains a plunger held in the applied position, and a symptom that eases as the fluid warms often points to a sticky valve.
- Check for a short holding solenoid A energized
On designs where the module controls the ground side, a control wire chafed to ground keeps solenoid A powered no matter what the module wants; on high-side designs, a short to voltage does the same. With the module disconnected, check the control wire for continuity to ground or voltage, as your wiring diagram describes, before condemning the solenoid.
- Command solenoid A off and listen
With a bidirectional scan tool, toggle solenoid A off and on with the engine off, listening at the pan or with a stethoscope. A solenoid that clicks normally is responding electrically, so a stuck-on gear points to the valve it feeds; no click, together with a good circuit, means the plunger is seized.
- Replace solenoid A and inspect its screen
Drop the pan, remove solenoid A, and inspect its inlet screen and the valve body port for debris. Fit a new solenoid with new O-rings lubricated with the specified fluid, and replace the filter while the pan is down so whatever jammed the first solenoid doesn't find its way into the new one.
- Clean or replace the valve body if the gear remains locked
If a new solenoid doesn't release the gear, the shift valve it controls is stuck in its bore. Valve body cleaning, reconditioning, or replacement is required, followed by an adaptive reset. Until then, avoid hills and heavy loads, since launching in too high a gear overheats the clutches.
DIY or shop? Electrical checks for a short and a command test are reasonable DIY tasks, and the solenoid itself is accessible with the pan off on many transmissions, so a methodical owner can get this far. Stop and hand it to a shop if the solenoid is part of a programmed pack, if the valve body needs disassembly, or if the car is too sluggish to drive safely, in which case transport it rather than forcing it through traffic.
Tools for the DIY steps: Bidirectional scan tool · Digital multimeter · Mechanic's stethoscope · Wiring diagram · Filter kit and specified fluid · Drain pan
Not sure which step applies to your car? Get the likely cause for your exact vehicle before buying anything for P0752.
Start a case with P0752 and your car. Redline weighs these causes against what your car shows, and names the check that would settle it before you buy parts.
Can I drive with P0752?
Redline can’t determine from a symptom or code alone whether your car is safe to drive.
P0752: common questions
Why does my car feel gutless from a stop?
A solenoid stuck on can hold the transmission in a higher gear than intended, so you're pulling away in the equivalent of second or third — the engine bogs and acceleration is weak. It's the signature of a stuck-on shift solenoid, and the flip side of the stuck-off code's symptoms.
Stuck on versus stuck off — does it change the repair?
The repair targets are similar — fluid, solenoid, valve body — but stuck-on adds one suspect: a wiring short that keeps the solenoid energized even when commanded off. That's why a stuck-on code gets an electrical short-check before the pan comes down.
Is it okay that the transmission still 'works'?
It moves, but it's operating off-script: wrong-gear launches lug the engine and heat the clutches. Get it inspected promptly rather than living with it. The longer it runs this way, the more the heat spreads the problem — and if it can barely pull away from a stop, have it towed.
What will this cost to sort out?
If it's the solenoid or a wiring short, it's a parts-cheap repair whose price rides on labor access — quick on pan-accessible designs, several hours where the valve body has to come out. It only gets expensive if the pan reveals debris pointing to wear beyond the solenoid.
Related trouble codes
Don’t have a scanner yet? A ~$25 Bluetooth adapter reads codes like P0752 from your phone. See our guide to the best OBD2 Bluetooth adapters. Run a repair shop? See Redline for shops.
Generic OBD-II reference. Manufacturer-specific behavior varies. Confirm with a scan tool and, for safety-related codes, a professional inspection. Cost ranges are reference ranges, not quotes.
Seeing P0752 on your car?
Every problem becomes a Case. Tell Redline what the car is doing: it shows what the evidence supports, what’s still missing, and what to check next, before you approve a repair.
“Inner pad ~1 mm. Outer pad 3 mm.”
Next: check the slide pins move freely before buying parts.