Shift Solenoid B Stuck On
The P0757 code indicates that the transmission control module (TCM) has detected that shift solenoid B is stuck in the 'on' position. This solenoid controls hydraulic pressure to engage specific gears. When stuck on, it can cause harsh shifts, incorrect gear engagement, or transmission slippage. Common causes include dirty transmission fluid, electrical issues, or a faulty solenoid.
01. Most Common Causes
- Faulty shift solenoid B
- Low or dirty transmission fluid
- Wiring or connector issues in the solenoid circuit
- Internal transmission mechanical failure
02. Symptoms You Will Notice
- Check Engine Light illuminated
- Harsh or delayed shifts
- Transmission stuck in a single gear
- Reduced fuel economy
03. Step-by-Step Diagnosis
Step 1: Scan for codes and verify P0757 is present.
Step 2: Check transmission fluid level and condition; top off or replace if necessary.
Step 3: Inspect wiring and connectors for damage or corrosion.
Step 4: Test solenoid resistance with a multimeter; compare to specs.
Step 5: If solenoid is faulty, replace it and clear codes.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive long distances as it can cause transmission damage. Limited driving to a repair shop is acceptable.
How much does it cost to fix?▼
Repair costs typically range from $150 to $400, including parts and labor, depending on the vehicle and shop rates.