P0750 on Toyota
Shift Solenoid A Malfunction
P0750 on Toyota vehicles indicates shift solenoid a malfunction. Au7o has documented this code across 2 Toyota models — most commonly on Corolla, RAV4. This code indicates the transmission control system detected a malfunction in shift solenoid 'A', one of the electrically operated valves that direct hydraulic fluid to engage gears. The computer commands these solenoids to control upshifts and downshifts, and it monitors their circuits and the resulting gear changes. When solenoid A doesn't respond electrically as expected — or the resulting shift doesn't happen correctly — this code is set. You may notice harsh, delayed, or missing shifts, or the transmission may enter a fail-safe (limp) mode. Typical repair costs on Toyota range from $600 to $1,500, depending on the specific model and root cause.
Common Causes of P0750
- •Failed or stuck shift solenoid A
- •Open, shorted, or chafed solenoid wiring
- •Corroded or loose transmission connector
- •Low, dirty, or degraded transmission fluid
- •Clogged solenoid or valve body passages
- •Internal valve body or hydraulic fault
- •Faulty transmission control module (TCM)
P0750 on Toyota by Model
Toyota Corolla(1 issue)
- ECM/PCM Failure Causing Harsh Shifting, No-Start, and MIL Illumination2000-2004
Early-2000s Corolla models are well documented for engine control module failure caused by defective internal circuitry and capacitor/board degradation. Owners report harsh or erratic automatic transmission shifting, stalling, no-start conditions, and check-engine lights because the ECM also controls transmission logic on these cars. Toyota issued a warranty enhancement and service campaign for many affected vehicles, making this one of the best-documented Corolla problems of the period.
Toyota RAV4(1 issue)
- ECM Failure Causing Harsh Shifting, No-Start, or Stalling2001-2003
Early third-party and owner reports, along with Toyota service information, document engine control module failures on 2001-2003 RAV4 models. Failed ECMs can corrupt transmission and engine control signals, leading to harsh or erratic shifting, illuminated warning lights, intermittent no-start, stalling, and poor drivability. This issue is distinct from normal transmission hesitation because the root cause is the ECM hardware itself.
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What does P0750 mean on Toyota?▼
P0750 stands for "Shift Solenoid A Malfunction." This code indicates the transmission control system detected a malfunction in shift solenoid 'A', one of the electrically operated valves that direct hydraulic fluid to engage gears. The computer commands these solenoids to control upshifts and downshifts, and it monitors their circuits and the resulting gear changes. When solenoid A doesn't respond electrically as expected — or the resulting shift doesn't happen correctly — this code is set. You may notice harsh, delayed, or missing shifts, or the transmission may enter a fail-safe (limp) mode. On Toyota specifically, this code is documented across 2 models.
What causes P0750 on Toyota vehicles?▼
Common causes on Toyota: Failed or stuck shift solenoid A, Open, shorted, or chafed solenoid wiring, Corroded or loose transmission connector, Low, dirty, or degraded transmission fluid, Clogged solenoid or valve body passages. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0750 on a Toyota?▼
Repair costs on Toyota range from $600 to $1,500, depending on the specific model and root cause.
Which Toyota models have P0750 documented?▼
Au7o has documented P0750 on 2 Toyota models: Corolla, RAV4.