Code Definition

P0759 — Shift Solenoid B Intermittent

System: Powertrain  |  Type: Generic (OBD-II Standard)  |  Make: Generic

About P0759

P0759 is a generic (obd-ii standard) powertrain diagnostic trouble code. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

Because P0759 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

The P0759 fault code is activated when the Transmission Control Module (TCM) detects intermittent signals or connectivity issues in the Shift Solenoid B circuit. Shift Solenoid B, also known as the 2-3 shift solenoid, is crucial for controlling the hydraulic fluid flow that enables shifts between second and third gear in automatic transmissions. An intermittent fault in this solenoid's circuit suggests sporadic electrical problems, potentially arising from loose connections, intermittent solenoid failures, or wiring issues. These intermittent issues can lead to erratic shifting behaviour, such...

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