Shift solenoid 'A' mechanically stuck on (35% likelihood): The solenoid plunger may be stuck in the open position due to debris, corrosion, or mechanical wear, keeping the hydraulic circuit permanently activated. Electrical short keeping solenoid energized (25% likelihood): A short circuit in the solenoid wiring or connector can keep the solenoid continuously powered, holding it in the on position regardless of PCM commands. Contaminated transmission fluid (20% likelihood): Debris or metal particles in the ATF can jam the solenoid in the open position, preventing it from closing when commanded. Valve body issue (12% likelihood): A stuck valve downstream of the solenoid can keep the hydraulic circuit engaged even if the solenoid attempts to close. TCM/PCM driver circuit issue (8% likelihood): A fault in the control module's solenoid driver may continuously supply power to the solenoid.

How much does it cost to fix P0752?

DIY repair typically costs $30–$200 for parts. Professional repair runs $200–$800 including parts and labor.

P0752

Powertrain

Moderate

Shift Solenoid 'A' Stuck On

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P0752 indicates that Shift Solenoid 'A' is stuck in the on (engaged) position. This is the opposite of P0751 — instead of the solenoid failing to activate, it's permanently activated. Since Shift Solenoid 'A' typically controls the 1-2 shift circuit, having it stuck on can cause the transmission to start in a higher gear or produce incorrect shift patterns.

The driving experience with this code is often quite noticeable. The vehicle may feel extremely sluggish from a stop because the transmission is trying to launch in a higher gear than intended. You may experience harsh shifts, the transmission skipping gears, or the vehicle entering limp mode. In severe cases, the engine may stall at low speeds because the transmission is forcing an inappropriate gear ratio.

This code should be addressed promptly to prevent further transmission damage. A clogged solenoid stuck in the open position is a common cause and can sometimes be resolved with a thorough transmission fluid flush. However, if the solenoid itself has failed mechanically or there's a wiring short, component replacement will be necessary. A transmission specialist can test the solenoid's electrical resistance and mechanical function to determine the exact cause.

Severity

High — Immediate AttentionWithin 24 Hours

Symptoms

•Transmission stuck in a higher gear even at low speeds
•Vehicle struggles to accelerate from a stop
•Engine may stall at low speeds or when stopping
•Check Engine light illuminated
•Harsh or incorrect shift patterns

Likely Causes

Shift solenoid 'A' mechanically stuck on35%

The solenoid plunger may be stuck in the open position due to debris, corrosion, or mechanical wear, keeping the hydraulic circuit permanently activated.

Electrical short keeping solenoid energized25%

A short circuit in the solenoid wiring or connector can keep the solenoid continuously powered, holding it in the on position regardless of PCM commands.

Contaminated transmission fluid20%

Debris or metal particles in the ATF can jam the solenoid in the open position, preventing it from closing when commanded.

Valve body issue12%

A stuck valve downstream of the solenoid can keep the hydraulic circuit engaged even if the solenoid attempts to close.

TCM/PCM driver circuit issue8%

A fault in the control module's solenoid driver may continuously supply power to the solenoid.