What is P1811?
Error Code P1811 is defined as Maximum Adaptive & Long Term Shift. This error code is a manufacturer-specific trouble code, meaning it does not apply to all vehicles makes. Rather, it applies only to specific vehicle makes, such as Buick, Chevrolet, GM, Pontiac, etc.
What does transmission control solenoid do?
The role of a transmission shift solenoid is to control the flow of transmission fluid. The transmission control module (TCM) sends an electrical signal telling the shift solenoid when to transfer fluid into and out of the transmission and at what rate.
What is the pressure control solenoid?
Pressure control solenoids are spring-loaded devices that the engine/transmission control modules use to direct the flow of pressurized transmission fluid to change gears. If the computer is unable to properly control pressure control solenoid ‘A’, then it will store a P0746 diagnostic trouble code.
What can cause a pressure control solenoid to fail?
A transmission solenoid can fail due to electrical issues, or dirty fluid that’s caused the shift solenoid to become stuck open / closed.
What does error code p1811 mean on a Ford Explorer?
Error Code P1811 is defined as Maximum Adaptive & Long Term Shift. This error code is a manufacturer-specific trouble code, meaning it does not apply to all vehicles makes.
What does the Check Engine light mean on a p1811 transmission?
The PCM will also command the check engine light or service engine soon light to be illuminated when P1811 is set. Basically, the PCM is sensing a slip, and is increasing line pressure to maximum in order to prevent the transmission from hurting itself further.
How much does it cost to diagnose a p1811 code?
The cost to diagnose the P1811 code is 1.0 hour of labor. The auto repair’s diagnosis time and labor rates vary by location, vehicle’s make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
What is the PCM looking for when setting p1811?
The bulletin states that a mechanical problem in the Pressure Control (PC) solenoid, contamination in the valve body, or incorrect fluid level can cause the P1811 to set. Those problems could definitely cause a P1811, but what they failed to mention in the bulletin is, what exactly is the PCM looking for when setting P1811.