P0755 on Toyota
Shift Solenoid B Malfunction
P0755 on Toyota vehicles indicates shift solenoid b malfunction. Au7o has documented this code across 2 Toyota models — most commonly on Corolla, RAV4. This code means the transmission control module commanded shift solenoid 'B' but did not see the expected electrical response, indicating an electrical fault in that solenoid or its circuit. Shift solenoids are small electrically-operated valves inside the automatic transmission that route pressurized fluid to engage the correct gears at the right time. When the computer detects an open, short, or out-of-range signal on solenoid B's circuit, it flags this code. You may notice harsh or wrong-gear shifts, the transmission stuck in one gear, or 'limp' mode. Typical repair costs on Toyota range from $600 to $1,400, depending on the specific model and root cause.
Common Causes of P0755
- •Failed or stuck shift solenoid B
- •Damaged, shorted, or corroded solenoid wiring/connector
- •Low or dirty/contaminated transmission fluid
- •Clogged transmission filter or fluid passages
- •Valve body wear or internal hydraulic fault
- •Faulty transmission control module (TCM)
- •Internal transmission mechanical wear
P0755 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)
- 2001-2003 RAV4 Harsh Shift or MIL From ECM Condition - T-SB-0156-10 Rev22001-2003
Toyota T-SB-0156-10 Rev2 applies to some 2001-2003 RAV4 vehicles with the U241E 2WD or U140F 4WD four-speed automatic transaxle that exhibit harsh shifting and/or an illuminated malfunction indicator lamp with DTC P0750, P0753, P0755, P0758 and/or P1760. Toyota states that ECM manufacturing was improved to reduce this condition. The bulletin does not describe intermittent no-start, engine stalling, poor throttle response or a general starting-system failure.
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What does P0755 mean on Toyota?▼
P0755 stands for "Shift Solenoid B Malfunction." This code means the transmission control module commanded shift solenoid 'B' but did not see the expected electrical response, indicating an electrical fault in that solenoid or its circuit. Shift solenoids are small electrically-operated valves inside the automatic transmission that route pressurized fluid to engage the correct gears at the right time. When the computer detects an open, short, or out-of-range signal on solenoid B's circuit, it flags this code. You may notice harsh or wrong-gear shifts, the transmission stuck in one gear, or 'limp' mode. On Toyota specifically, this code is documented across 2 models.
What causes P0755 on Toyota vehicles?▼
Common causes on Toyota: Failed or stuck shift solenoid B, Damaged, shorted, or corroded solenoid wiring/connector, Low or dirty/contaminated transmission fluid, Clogged transmission filter or fluid passages, Valve body wear or internal hydraulic fault. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0755 on a Toyota?▼
Repair costs on Toyota range from $600 to $1,400, depending on the specific model and root cause.
Which Toyota models have P0755 documented?▼
Au7o has documented P0755 on 2 Toyota models: Corolla, RAV4.