P0756 LEXUS Shift Solenoid B Performance

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
When is the obd code mean?
The P0756 code is detected when the ECM has detected a mechanical fault with the solenoid energized, valve stuck off
– Engine Light ON (or Service Engine Soon Warning Light)
– Transmission will not shift gears.
P0756 LEXUS OBD Code 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.

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