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

Tech notes

When the a transmission solenoid is stuck off, in most cases the problem is not the electrical part of the solenoid; the problem is foreign material obstructing the mechanical function of the solenoid or the flow of the fluid through the transmission valve body. If the transmission fluid is very dirty, it is recommend changing the transmission fluid and if possible removing the transmission pan for further diagnosis. Excessive debris or metal particles on the transmission pan could be an indication that there is a transmission mechanical failure and that the transmission will need to be rebuilt or replaced.

When is the code detected?

The P0756 code is detected when the ECM has detected a mechanical fault with the solenoid energized, valve stuck off

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)
– Transmission will not shift gears.

P0756 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.

P0756 Information for specific makes

P0756 ACURA
P0756 AUDI
P0756 BMW
P0756 CHRYSLER
P0756 DODGE
P0756 FORD
P0756 HONDA
P0756 ISUZU
P0756 JEEP
P0756 KIA
P0756 LEXUS
P0756 MAZDA
P0756 SUBARU
P0756 SUZUKI
P0756 TOYOTA
P0756 VOLKSWAGEN
P0756 BUICK
P0756 CADILLAC
P0756 CHEVROLET
P0756 GMC
P0756 PONTIAC
P0756 SATURN