DTC P0756: Shift Solenoid "B" Performance (Shift Solenoid Valve S2) [08/2015 - ]: Description

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The ECM uses signals from the output shaft speed sensor and input speed sensor to detect the actual gear position (1st, 2nd, 3rd, 4th or 5th gear).

Then the ECM compares the actual gear with the shift schedule in the ECM memory to detect mechanical problems of the shift solenoid valves, valve body or automatic transmission (clutch, brake, gear, etc.).

DTC Code	DTC Detection Condition	Trouble Area
P0756	Gear required by ECM does not match actual gear when driving (2-trip detection logic).	Shift solenoid valve S2 remains open or closed Shift solenoid valve SLT remains open or closed Valve body is blocked Automatic transmission (clutch, brake, gear, etc.)