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DTC - Diagnostic Trouble Codes information

P0756

Powertrain Codes

P0756 - LEXUS - Shift Solenoid B Performance

Symptoms

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

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 Detected

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

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.