P0758 Buick Shift Solenoid B Electrical
Possible causes
– Low transmission fluid level
– Dirty transmission fluid
– Faulty shift solenoid ‘B’ valve
– Shift solenoid ‘B’ valve harness or connectors
– Shift solenoid ‘B’ valve circuit is open or shorted
– Dirty transmission fluid
– Faulty shift solenoid ‘B’ valve
– Shift solenoid ‘B’ valve harness or connectors
– Shift solenoid ‘B’ valve circuit is open or shorted
What about the obd code?
The P0758 Buick code is detected when the gear required by the ECM does not match the actual gear when vehicle is driven.
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
– Transmission will not shift gears
– Transmission will not shift gears
P0758 Buick Description
Shift solenoid valve ‘B’ is turned ON or OFF by the Transmission Control Module (TCM) in response to signals sent from the park/neutral position (PNP) switch, vehicle speed and Engine Control Module (ECM) (throttle opening). Gears will then be shifted to the optimum position.
Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick LaCrosse – ?David Dunbar Buick – Buick Century – Buick LaCrosse – Buick LeSabre – Buick Lucerne – Buick Park Avenue – Buick Regal – Buick Verano – Buick Enclave – Buick Encore – Buick Rainier – Buick Rendezvous – Buick Terraza – Buick Riviera