P1811 BUICK - Maximum Adaptive & Long Term Shift
- Faulty Pressure Control Solenoid
- Pressure Control Solenoid harness is open or shorted
- Pressure Control Solenoid circuit poor electrical connection
- Engine Light ON (or Service Engine Soon Warning Light)
P1811 Buick Description
With the engine running and an adaptable shift has occurred, the Powertrain Control Module (PCM) detects during the following conditions occurred twice per trip: Condition 1: 1-2 Shift over 0.65 seconds and 1 -2 Shift adaptive reached its limit. Case 2: 2-3 Shift over 0.65 seconds and 2-3 Shift adaptive reached its limit. Case 3: 3-4 Shift over 0.65 seconds and 3-4 Shift adaptive reached its limit.