P0771 on Mazda
Shift Solenoid E Performance/Stuck Off
P0771 on Mazda vehicles indicates shift solenoid e performance/stuck off. Au7o has documented this code across 1 Mazda model — most commonly on Mazda3. This code indicates a performance problem with shift solenoid 'E', or that it appears stuck off — meaning the transmission isn't getting the gear engagement or behavior the computer commanded from that solenoid. Shift solenoids route hydraulic fluid to apply clutches and bands for specific gears, and on many transmissions solenoid E is tied to the torque converter clutch or a specific shift element. When the resulting action doesn't match the command, this code sets, often producing harsh or missing shifts, slipping, or a transmission limp mode. It generally points to the solenoid, fluid condition, or the valve body. Typical repair costs on Mazda range from $400 to $2,500, depending on the specific model and root cause.
Common Causes of P0771
- •Stuck or failed shift solenoid E
- •Low, dirty, or degraded transmission fluid
- •Clogged valve body passages or sticking valve
- •Open, shorted, or chafed solenoid wiring
- •Corroded or loose transmission connector
- •Internal hydraulic leak or worn seals
- •Faulty transmission control module (TCM)
P0771 on Mazda by Model
Mazda Mazda3(1 issue)
- 2004-2009 Mazda3 FN4A-EL Four-Speed Automatic Shift Solenoid and Valve Body Faults2004-2009
The FN4A-EL (Mazda's version of the Ford 4F27E) four-speed automatic used in the BK Mazda3 suffers sticking shift solenoids and worn valve-body bores. When a solenoid sticks or its driver circuit in the TCM fails, line pressure is no longer properly controlled: the car bangs into gear, flares between shifts, holds a single gear in limp mode, or refuses to shift out of first. Owners report the P0766/P0767 (shift solenoid D) and P0771 (shift solenoid E) family of codes, frequently after the fluid has gone past its life and clutch debris has circulated through the valve body. Long-neglected fluid accelerates it - the burnt clutch material is what makes the solenoid valves stick in the first place.
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What does P0771 mean on Mazda?▼
P0771 stands for "Shift Solenoid E Performance/Stuck Off." This code indicates a performance problem with shift solenoid 'E', or that it appears stuck off — meaning the transmission isn't getting the gear engagement or behavior the computer commanded from that solenoid. Shift solenoids route hydraulic fluid to apply clutches and bands for specific gears, and on many transmissions solenoid E is tied to the torque converter clutch or a specific shift element. When the resulting action doesn't match the command, this code sets, often producing harsh or missing shifts, slipping, or a transmission limp mode. It generally points to the solenoid, fluid condition, or the valve body. On Mazda specifically, this code is documented across 1 model.
What causes P0771 on Mazda vehicles?▼
Common causes on Mazda: Stuck or failed shift solenoid E, Low, dirty, or degraded transmission fluid, Clogged valve body passages or sticking valve, Open, shorted, or chafed solenoid wiring, Corroded or loose transmission connector. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0771 on a Mazda?▼
Repair costs on Mazda range from $400 to $2,500, depending on the specific model and root cause.
Which Mazda models have P0771 documented?▼
Au7o has documented P0771 on 1 Mazda model: Mazda3.