What Does P0752 Mean?
Shift solenoid A is stuck in the on position. When shift solenoid A is stuck on, the transmission may be unable to shift out of 2nd gear or may start in 2nd gear instead of 1st. This can cause the engine to labor at low speeds and may also prevent engagement of certain gears depending on the transmission design.
Safety Warning
Starting in 2nd gear can cause engine stalling or very sluggish acceleration from stops, which is dangerous in traffic. The transmission may also overheat. Do not drive in heavy traffic — have the vehicle towed to a repair facility.
Common Causes
30%
Shift solenoid A mechanically stuck in the on/apply position (debris holding plunger open)
25%
Short to power in the shift solenoid A circuit keeping it constantly energized
20%
Contaminated transmission fluid jamming the solenoid valve or shift valve in the apply position
15%
Valve body — 1-2 shift valve stuck in the upshifted position
10%
TCM/PCM driver circuit issue keeping the solenoid energized
Diagnostic Steps
1
Monitor live data to confirm the transmission starts in 2nd gear or cannot downshift to 1st — verify actual vs. commanded gear.
2
Check for wiring shorts to power in the shift solenoid A circuit — a shorted wire can keep the solenoid continuously energized.
3
Measure solenoid resistance and verify it de-energizes when commanded off by the TCM.
4
Inspect transmission fluid for heavy contamination that could jam the solenoid or valve body components.
5
If electrical tests pass, remove the valve body to inspect the 1-2 shift valve and solenoid for mechanical sticking.
Estimated Repair Cost
$200 - $2,500
Parts + labor, varies by vehicle and location
Shift solenoid A is stuck in the on position. When shift solenoid A is stuck on, the transmission may be unable to shift out of 2nd gear or may start in 2nd gear instead of 1st. This can cause the engine to labor at low speeds and may also prevent engagement of certain gears depending on the transmi...
The most common cause of P0752 (Shift Solenoid A Stuck OnP0753 Shift Solenoid A Electrical) is: Shift solenoid A mechanically stuck in the on/apply position (debris holding plunger open)
Typical repair costs for P0752 range from $200 to $2,500, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Starting in 2nd gear can cause engine stalling or very sluggish acceleration from stops, which is dangerous in traffic. The transmission may also overheat. Do not drive in heavy traffic — have the vehicle towed to a repair facility.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P0752 to identify the root cause.
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Quick Info
Category
Powertrain
System
Automatic Transmission — Shift Control
Difficulty
Type
Generic (SAE)
Recommended Tools
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