P1850 BUICK - Brake Band Apply Solenoid Circuit
- Faulty Brake Band Apply Solenoid
- Brake Band Apply Solenoid harness is open or shorted
- Brake Band Apply Solenoid circuit poor electrical connection
- Engine Light ON (or Service Engine Soon Warning Light)
P1850 Buick DescriptionWith the engine running, Transmission Control Module (TCM) High Side driver is closed, the Powertrain Control Module (PCM) detects that the Band Control solenoid was commanded off and the feedback voltage was less than 2.45v, or the Band Control solenoid was commanded off and the feedback voltage was from 2.45 -3.53v, or the Band Control solenoid was commanded on and the feedback voltage was more than 4.02v.
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