Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that a part in your car that controls the pressure in the transmission isn't working right. It's like when a garden hose has a kink and water can't flow properly.
The P1911 code indicates that the Pressure Control Solenoid B, also known as Variable Force Solenoid (VFS B), is not producing the expected pressure output. This can affect the transmission's ability to shift gears smoothly.
The VFS B is responsible for regulating hydraulic pressure in the transmission. When the powertrain control module (PCM) detects that the pressure output from VFS B is lower than expected, it triggers the P1911 code. This could be due to electrical issues, mechanical failures, or fluid problems.
• Harsh or erratic shifting
• Transmission slipping
• Check Engine Light illuminated
• Faulty VFS B solenoid
• Wiring issues or poor connections
• Low transmission fluid level
PCM: Powertrain Control Module
VFS: Variable Force Solenoid
• Check transmission fluid level and condition
• Inspect wiring and connectors to the VFS B solenoid
• Test the VFS B solenoid for proper operation
• Replace the VFS B solenoid if faulty
• Repair or replace damaged wiring or connectors
• Refill or replace transmission fluid
• OBD-II scanner
• Multimeter
• Transmission fluid level gauge
$200 - $600
Moderate
• Ford F-150
• Mazda 6
• Lincoln Navigator
• Regular transmission fluid changes
• Routine inspection of wiring and connectors
• Avoiding harsh driving conditions
Transmission Issue
• Have the transmission inspected by a professional
• Avoid driving aggressively until repaired
Check with your vehicle's manufacturer for specific warranty coverage related to transmission components.
This code has been associated with vehicles using electronically controlled transmissions, particularly in models from the early 2000s.
Moderate – Addressing this issue promptly can prevent further transmission damage.
Driving with transmission issues can lead to unsafe driving conditions. It is advised to address the problem as soon as possible.
• Vehicle at operating temperature
• Transmission in drive mode
The VFS B solenoid is located inside the transmission, usually accessible by removing the transmission pan.
Q: Can I drive with a P1911 code?
A: It's not recommended to drive for extended periods with this code, as it can lead to further transmission damage.
Q: How often should I check my transmission fluid?
A: It's recommended to check your transmission fluid every 30,000 to 60,000 miles, or as specified in your vehicle's manual.
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