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Code

P0755

Transmission

Shift solenoid B malfunction

Shift solenoid B circuit has an electrical fault.

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Most likely causes

Faulty shift solenoid
Wiring fault
Faulty TCM

Symptoms you may notice

No 2–3 shift
Harsh shift
Limp mode

Checks to run

Test solenoid resistance
Check wiring
Verify solenoid command

Tools you may need

Multimeter OBD-II scanner

Always diagnose before replacing. Codes share symptoms; confirm the cause with measurements before buying parts.

Related codes in Transmission

Transmission control system malfunction

Transmission range sensor (PRNDL) circuit malfunction

Output shaft speed sensor circuit malfunction

Incorrect gear ratio

Torque converter clutch circuit stuck off

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